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| -rw-r--r-- | configure.ac.orig | 4572 |
1 files changed, 4572 insertions, 0 deletions
diff --git a/configure.ac.orig b/configure.ac.orig new file mode 100644 index 0000000..e70ed30 --- /dev/null +++ b/configure.ac.orig @@ -0,0 +1,4572 @@ +## Process this file with autoconf to produce configure. +## +## Copyright by The HDF Group. +## Copyright by the Board of Trustees of the University of Illinois. +## All rights reserved. +## +## This file is part of HDF5. The full HDF5 copyright notice, including +## terms governing use, modification, and redistribution, is contained in +## the files COPYING and Copyright.html. COPYING can be found at the root +## of the source code distribution tree; Copyright.html can be found at the +## root level of an installed copy of the electronic HDF5 document set and +## is linked from the top-level documents page. It can also be found at +## http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have +## access to either file, you may request a copy from help@hdfgroup.org. + +## ---------------------------------------------------------------------- +## Initialize configure. +## +AC_REVISION($Id: configure.ac 22697 2012-08-19 14:35:47Z hdftest $) +AC_PREREQ([2.69]) + +## AC_INIT takes the name of the package, the version number, and an +## email address to report bugs. AC_CONFIG_SRCDIR takes a unique file +## as its argument. +## +## NOTE: Do not forget to change the version number here when we do a +## release!!! +## +AC_INIT([HDF5], [1.9.212], [help@hdfgroup.org]) +AC_CONFIG_SRCDIR([src/H5.c]) +AC_CONFIG_HEADER([src/H5config.h]) + +AC_CONFIG_AUX_DIR([bin]) +AC_CONFIG_MACRO_DIR([m4]) + +## AM_INIT_AUTOMAKE takes a list of options that should be applied to +## every Makefile.am when automake is run. +AM_INIT_AUTOMAKE([foreign]) +AM_SILENT_RULES([yes]) + +## AM_MAINTAINER_MODE turns off "rebuild rules" that contain dependencies +## for Makefiles, configure, src/H5config.h, etc. If AM_MAINTAINER_MODE +## is *not* included here, these files will be rebuilt if out of date. +## This is a problem because if users try to build on a machine with +## the wrong versions of autoconf and automake, these files will be +## rebuilt with the wrong versions and bad things can happen. +## Also, CVS doesn't preserve dependencies between timestamps, so +## Makefiles will often think rebuilding needs to occur when it doesn't. +## Developers should './configure --enable-maintainer-mode' to turn on +## rebuild rules. +AM_MAINTAINER_MODE + +## ---------------------------------------------------------------------- +## Set prefix default (install directory) to a directory in the build area. +## This allows multiple src-dir builds within one host. +AC_PREFIX_DEFAULT([`pwd`/hdf5]) + +## Run post processing on files created by configure. +## src/H5pubconf.h: +## Generate src/H5pubconf.h from src/H5config.h by prepending H5_ to all +## macro names. This avoid name conflict between HDF5 macro names and those +## generated by another software package that uses the HDF5 library. +## src/libhdf5.settings: +## Remove all lines begun with "#" which are generated by CONDITIONAL's of +## configure. +AC_CONFIG_COMMANDS([pubconf], [ + echo "creating src/H5pubconf.h" + sed 's/#define /#define H5_/' <src/H5config.h |\ + sed 's/#undef /#undef H5_/' >pubconf + if test ! -f src/H5pubconf.h; then + /bin/mv -f pubconf src/H5pubconf.h + elif (diff pubconf src/H5pubconf.h >/dev/null); then + rm -f pubconf + echo "src/H5pubconf.h is unchanged" + else + /bin/mv -f pubconf src/H5pubconf.h + fi + echo "Post process src/libhdf5.settings" + sed '/^#/d' < src/libhdf5.settings > libhdf5.settings.TMP + cp libhdf5.settings.TMP src/libhdf5.settings + rm -f libhdf5.settings.TMP +]) + +## It's possible to configure for a host other than the one on which +## configure is currently running by using the --host=foo flag. +## For machines on which HDF5 is often configured, it can be convenient +## to specify the name of the machine rather than its canonical type. +case $host_alias in + redstorm) + host_alias=x86_64-redstorm-linux-gnu + ;; +esac + +AC_CANONICAL_HOST +AC_SUBST([CPPFLAGS]) + +## H5_CFLAGS (and company) are for CFLAGS that should be used on HDF5, but +## not exported to h5cc (or h5fc, etc.) +AC_SUBST([H5_CFLAGS]) +AC_SUBST([H5_CPPFLAGS]) +AC_SUBST([H5_FCFLAGS]) +AC_SUBST([H5_CXXFLAGS]) +AC_SUBST([H5_LDFLAGS]) + +## AM_CFLAGS (and company) are for CFLAGS that should be used on HDF5, +## and WILL be exported to h5cc (or h5fc, etc) if set by configure. +AC_SUBST([AM_CFLAGS]) +AC_SUBST([AM_FCFLAGS]) +AC_SUBST([AM_CXXFLAGS]) +AC_SUBST([AM_CPPFLAGS]) +AC_SUBST([AM_LDFLAGS]) + +## Make sure flags are set to something (otherwise macros may set them later). +AM_CFLAGS="${AM_CFLAGS}" +AM_CXXFLAGS="${AM_CXXFLAGS}" +AM_FCFLAGS="${AM_FCFLAGS}" +AM_CPPFLAGS="${AM_CPPFLAGS}" +AM_LDFLAGS="${AM_LDFLAGS}" +CFLAGS="${CFLAGS}" +CXXFLAGS="${CXXFLAGS}" +FCFLAGS="${FCFLAGS}" +CPPFLAGS="${CPPFLAGS}" +LDFLAGS="${LDFLAGS}" + +## Configure may need to alter any of the *FLAGS variables in order for +## various checks to work correctly. Save the user's value here so it +## can be restored once all configure checks are complete. +saved_user_CFLAGS="$CFLAGS" +saved_user_CXXFLAGS="$CXXFLAGS" +saved_user_FCFLAGS="$FCFLAGS" +saved_user_LDFLAGS="$LDFLAGS" +saved_user_CPPFLAGS="$CPPFLAGS" + +## Different compilers may need default libraries. They are specified in +## the config/* files, so we put this statement here so that it'll be +## set by the code which follows... +## +DEFAULT_LIBS="" + +## Support F9X variable to define Fortran compiler if FC variable is +## not used. This should be deprecated in the future. +if test "x" = "x$FC"; then + FC=${F9X} +fi + +## ---------------------------------------------------------------------- +## Dump all shell variables values. +## +AC_MSG_CHECKING([shell variables initial values]) +set >&AS_MESSAGE_LOG_FD +AC_MSG_RESULT([done]) + +## Define all symbol variables used for configure summary. +## EXTERNAL_FILTERS equals all external filters. Default none. +## MPE: whether MPE option is enabled. Default no. +## STATIC_EXEC: whether static-exec is enabled. Default no. +## HDF_FORTRAN: whether Fortran is enabled. Default no. +## HDF_FORTRAN2003: whether Fortran 2003 is enabled. Default no. +## FC: Fortran compiler. +## HDF_CXX: whether C++ is enabled. Default no. +## CXX: C++ compiler. +## HDF5_HL: whether high-level library is enabled. Default is yes. +## LARGEFILE: whether largefile support is enabled. Default yes. +## INSTRUMENT: whether INSTRUMENT is enabled. No default set here. +## CODESTACK: whether CODESTACK is enabled. Default no. +## HAVE_DMALLOC: whether system has dmalloc support. Default no. +## DIRECT_VFD: whether DIRECT_VFD is enabled. Default no. +## THREADSAFE: whether THREADSAFE is enabled. Default no. +## STATIC_SHARED: whether static and/or shared libraries are requested. +## enable_shared: whether shared lib is enabled. +## enable_static: whether static lib is enabled. +## UNAME_INFO: System information. + +AC_SUBST([EXTERNAL_FILTERS]) +AC_SUBST([MPE]) MPE=no +AC_SUBST([STATIC_EXEC]) STATIC_EXEC=no +AC_SUBST([HDF_FORTRAN]) HDF_FORTRAN=no +AC_SUBST([HDF_FORTRAN2003]) HDF_FORTRAN2003=no +AC_SUBST([FC]) HDF_FORTRAN=no +AC_SUBST([FC2003]) HDF_FORTRAN2003=no +AC_SUBST([HDF_CXX]) HDF_CXX=no +AC_SUBST([CXX]) HDF_CXX=no +AC_SUBST([HDF5_HL]) HDF5_HL=yes +AC_SUBST([LARGEFILE]) LARGEFILE=yes +AC_SUBST([INSTRUMENT]) +AC_SUBST([CODESTACK]) CODESTACK=no +AC_SUBST([HAVE_DMALLOC]) HAVE_DMALLOC=no +AC_SUBST([DIRECT_VFD]) DIRECT_VFD=no +AC_SUBST([THREADSAFE]) THREADSAFE=no +AC_SUBST([STATIC_SHARED]) +AC_SUBST([enable_shared]) +AC_SUBST([enable_static]) +AC_SUBST([UNAME_INFO]) UNAME_INFO=`uname -a` + +## ---------------------------------------------------------------------- +## Some platforms have broken basename, and/or xargs programs. Check +## that it actually does what it's supposed to do. Catch this early +## since configure relies upon them heavily and there's no use continuing +## if it's broken. +## + +## Avoid depending upon Character Ranges. +## These are defined by autoconf. +## as_cr_letters='abcdefghijklmnopqrstuvwxyz' +## as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' + +AC_MSG_CHECKING([if basename works]) +BASENAME_TEST="`basename /foo/bar/baz/qux/basename_works`" +if test $BASENAME_TEST != "basename_works"; then + AC_MSG_ERROR([basename program doesn't work]) +else + AC_MSG_RESULT([yes]) +fi + +AC_MSG_CHECKING([if xargs works]) +XARGS_TEST="`echo /foo/bar/baz/qux/xargs_works | xargs basename`" +if test $XARGS_TEST != "xargs_works"; then + AC_MSG_ERROR([xargs program doesn't work]) +else + AC_MSG_RESULT([yes]) +fi + +## ---------------------------------------------------------------------- +## Check that the cache file was build on the same host as what we're +## running on now. +## +AC_CACHE_CHECK([for cached host], [hdf5_cv_host], [hdf5_cv_host="none"]); +if test $hdf5_cv_host = "none"; then + hdf5_cv_host=$host +elif test $hdf5_cv_host != $host; then + echo "The config.cache file was generated on $hdf5_cv_host but" + echo "this is $host. Please remove that file and try again." + AC_MSG_ERROR([config.cache file is invalid]) +fi + +## ---------------------------------------------------------------------- +## Source any special files that we need. These files normally aren't +## present but can be used by the maintainers to fine tune things like +## turning on debug or profiling flags for the compiler. The search order +## is: +## +## CPU-VENDOR-OS +## VENDOR-OS +## CPU-OS +## CPU-VENDOR +## OS +## VENDOR +## CPU +## +## If the `OS' ends with a version number then remove it. For instance, +## `freebsd3.1' would become `freebsd' + +case $host_os in + aix*) + host_os_novers=aix + ;; + freebsd*) + host_os_novers=freebsd + ;; + irix5.*) + host_os_novers=irix5.x + ;; + irix6.*) + host_os_novers=irix6.x + ;; + osf4.*) + host_os_novers=osf4.x + ;; + osf5.*) + host_os_novers=osf5.x + ;; + solaris2.*) + host_os_novers=solaris2.x + ;; + *) + host_os_novers=$host_os + ;; +esac + +host_config="none" +for f in $host_cpu-$host_vendor-$host_os \ + $host_cpu-$host_vendor-$host_os_novers \ + $host_vendor-$host_os \ + $host_vendor-$host_os_novers \ + $host_cpu-$host_os \ + $host_cpu-$host_os_novers \ + $host_cpu-$host_vendor \ + $host_os \ + $host_os_novers \ + $host_vendor \ + $host_cpu ; do + AC_MSG_CHECKING([for config $f]) + if test -f "$srcdir/config/$f"; then + host_config=$srcdir/config/$f + AC_MSG_RESULT([found]) + break + fi + AC_MSG_RESULT([no]) +done +if test "X$host_config" != "Xnone"; then + CC_BASENAME="`echo $CC | cut -f1 -d' ' | xargs basename 2>/dev/null`" + . $host_config +fi + +## Source any special site-specific file +hname="`hostname`" +while test -n "$hname"; do + file=$srcdir/config/site-specific/host-$hname + AC_MSG_CHECKING([for config $file]) + if test -f "$file"; then + . $file + AC_MSG_RESULT([found]) + break + fi + AC_MSG_RESULT([no]) + hname_tmp=$hname + hname="`echo $hname | cut -d. -f2-99`" + test "$hname_tmp" = "$hname" && break +done + +## ---------------------------------------------------------------------- +## Some built-in configure checks can only see CFLAGS (not AM_CFLAGS), so +## we need to add this in so configure works as intended. We will need to +## reset this value at the end of configure, to preserve the user's settings. +CFLAGS="${AM_CFLAGS} ${CFLAGS}" +FCFLAGS="${AM_FCFLAGS} ${FCFLAGS}" +CXXFLAGS="${AM_CXXFLAGS} ${CXXFLAGS}" +CPPFLAGS="${AM_CPPFLAGS} ${CPPFLAGS}" +LDFLAGS="${AM_LDFLAGS} ${LDFLAGS}" + +## ---------------------------------------------------------------------- +## Enable dependency tracking unless the configure options or a +## site-specific file told us not to. This prevents configure from +## silently disabling dependencies for some compilers. +## +if test -z "${enable_dependency_tracking}"; then + enable_dependency_tracking="yes" +fi + +## ---------------------------------------------------------------------- +## Check for programs. +## +AC_PROG_CC +CC_BASENAME="`echo $CC | cut -f1 -d' ' | xargs basename 2>/dev/null`" + +## ---------------------------------------------------------------------------- +## Configure disallows unsupported combinations of options. However, users +## may want to override and build with unsupported combinations for their +## own use. They can use the --enable-unsupported configure flag, which +## ignores any errors from configure due to incompatible flags. +AC_MSG_CHECKING([if unsupported combinations of configure options are allowed]) +AC_ARG_ENABLE([unsupported], + [AS_HELP_STRING([--enable-unsupported], + [Allow unsupported combinations of configure options])], + [ALLOW_UNSUPPORTED=$enableval]) + +case "X-$ALLOW_UNSUPPORTED" in + X-|X-no) + AC_MSG_RESULT([no]) + ;; + X-yes) + AC_MSG_RESULT([yes]) + ;; + *) + ;; +esac + +## ---------------------------------------------------------------------- +## Check if they would like the Fortran interface compiled +## +AC_SUBST([HDF5_INTERFACES]) HDF5_INTERFACES="" +AC_MSG_CHECKING([if Fortran interface enabled]) +AC_ARG_ENABLE([fortran], + [AS_HELP_STRING([--enable-fortran], + [Compile the Fortran 77/90/95 interface [default=no]])], + [HDF_FORTRAN=$enableval]) + +if test "X$HDF_FORTRAN" = "Xyes"; then + echo "yes" +else + echo "no" +fi + + +## ---------------------------------------------------------------------- +## Check if they would like the Fortran 2003 interface compiled +## +AC_MSG_CHECKING([if Fortran 2003 interface enabled]) +AC_ARG_ENABLE([fortran2003], + [AS_HELP_STRING([--enable-fortran2003], + [Compile the Fortran 2003 interface, must also specify --enable-fortran [default=no]])], + [HDF_FORTRAN2003=$enableval]) + +## ---------------------------------------------------------------------- +## Check to make sure --enable-fortran is present if --enable-fortran2003 +## was specified + +if test "X$HDF_FORTRAN2003" = "Xyes" && test "X$HDF_FORTRAN" = "Xno"; then + echo "no" + AC_MSG_ERROR([--enable-fortran must be used with --enable-fortran2003]) +else + echo "yes" +fi + +HAVE_SIZEOF="no" +HAVE_C_SIZEOF="no" +HAVE_STORAGE_SIZE="no" +FORTRAN_DEFAULT_REALisDBLE="no" + +if test "X$HDF_FORTRAN" = "Xyes"; then + + AC_SUBST([FC]) HDF_FORTRAN=yes + AC_SUBST([HAVE_FORTRAN_2003]) + + HDF5_INTERFACES="$HDF5_INTERFACES fortran" + + ## -------------------------------------------------------------------- + ## Default for FORTRAN 2003 compliant compilers + ## + HAVE_FORTRAN_2003="no" + HAVE_F2003_REQUIREMENTS="no" + + ## -------------------------------------------------------------------- + ## HDF5 integer variables for the H5fortran_types.f90 file. + ## + AC_SUBST([R_LARGE]) + AC_SUBST([R_INTEGER]) + AC_SUBST([HADDR_T]) + AC_SUBST([HSIZE_T]) + AC_SUBST([HSSIZE_T]) + AC_SUBST([HID_T]) + AC_SUBST([SIZE_T]) + AC_SUBST([OBJECT_NAMELEN_DEFAULT_F]) + + ## -------------------------------------------------------------------- + ## Fortran source extention + ## + AC_FC_SRCEXT([f90]) + + AC_SUBST([F9XSUFFIXFLAG]) + AC_SUBST([FSEARCH_DIRS]) + + ## -------------------------------------------------------------------- + ## Check for a Fortran 9X compiler and how to include modules. + ## + AC_PROG_FC([f90 pgf90 slf90 f95 g95 xlf95 efc ifort ftn],) + AC_F9X_MODS + + ## It seems that libtool (as of Libtool 1.5.14) is trying to + ## configure itself for Fortran 77. + ## Tell it that our F77 compiler is $FC (actually a F9X compiler) + F77=$FC + + ## Change to the Fortran 90 language + AC_LANG_PUSH(Fortran) + + ## -------------------------------------------------------------------- + ## Define wrappers for the C compiler to use Fortran function names + ## + AC_FC_WRAPPERS + + ## -------------------------------------------------------------------- + ## See if the compiler will support the "-I." option + ## + dnl AM_FCFLAGS_saved=$AM_FCFLAGS + dnl AM_FCFLAGS="${AM_FCFLAGS} -I." + + dnl AC_MSG_CHECKING(if compiler supports -I. option) + dnl AC_TRY_FCOMPILE([ + dnl program conftest + dnl end + dnl ], AC_MSG_RESULT(yes), + dnl AC_MSG_RESULT(no) + dnl AM_FCFLAGS="$AM_FCFLAGS_saved") + + ## -------------------------------------------------------------------- + ## See if the fortran compiler supports the intrinsic function "SIZEOF" + + AC_MSG_CHECKING([if Fortran compiler supports intrinsic SIZEOF]) + AC_TRY_RUN([ + PROGRAM main + i = sizeof(x) + END PROGRAM + ], [AC_MSG_RESULT([yes]) + HAVE_SIZEOF="yes"], + [AC_MSG_RESULT([no])]) + + ## See if the fortran compiler supports the intrinsic function "C_SIZEOF" + + AC_MSG_CHECKING([if Fortran compiler supports intrinsic C_SIZEOF]) + AC_TRY_RUN([ + PROGRAM main + USE ISO_C_BINDING + INTEGER(C_INT) :: a + INTEGER(C_SIZE_T) :: result + result = C_SIZEOF(a) + END PROGRAM + ], [AC_MSG_RESULT([yes]) + HAVE_C_SIZEOF="yes"], + [AC_MSG_RESULT([no])]) + + ## See if the fortran compiler supports the intrinsic function "STORAGE_SIZE" + + AC_MSG_CHECKING([if Fortran compiler supports intrinsic STORAGE_SIZE]) + AC_TRY_RUN([ + PROGRAM main + INTEGER :: a + INTEGER :: result + result = STORAGE_SIZE(a) + END PROGRAM + ], [AC_MSG_RESULT([yes]) + HAVE_STORAGE_SIZE="yes"], + [AC_MSG_RESULT([no])]) + + ## Check to see if -r8 was specified to determine if we need to + ## compile the DOUBLE PRECISION interfaces. + + AC_MSG_CHECKING([if Fortran default REAL is DOUBLE PRECISION]) + + AC_TRY_RUN([ + MODULE type_mod + INTERFACE h5t + MODULE PROCEDURE h5t_real + MODULE PROCEDURE h5t_dble + END INTERFACE + CONTAINS + SUBROUTINE h5t_real(r) + REAL :: r + END SUBROUTINE h5t_real + SUBROUTINE h5t_dble(d) + DOUBLE PRECISION :: d + END SUBROUTINE h5t_dble + END MODULE type_mod + PROGRAM main + USE type_mod + REAL :: r + DOUBLE PRECISION :: d + CALL h5t(r) + CALL h5t(d) + END PROGRAM main + ], + [AC_MSG_RESULT([no])], + [AC_MSG_RESULT([yes]) + FORTRAN_DEFAULT_REALisDBLE="yes"]) + + if test "X$HDF_FORTRAN2003" = "Xyes"; then + + ## Checking if the compiler supports the required Fortran 2003 features and + ## disable Fortran 2003 if it does not. + + AC_MSG_CHECKING([if Fortran compiler version compatible with Fortran 2003 HDF]) + HAVE_FORTRAN_2003="no" + + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[ + + USE iso_c_binding + IMPLICIT NONE + TYPE(C_PTR) :: ptr + TYPE(C_FUNPTR) :: funptr + CHARACTER(LEN=80, KIND=c_char), TARGET :: ichr + + ptr = C_LOC(ichr(1:1)) + + ])], + [AC_MSG_RESULT([yes]) + HAVE_F2003_REQUIREMENTS=[yes]], + [AC_MSG_RESULT([no])]) + if test "X$HAVE_F2003_REQUIREMENTS" = "Xno"; then + ## echo $HAVE_FORTRAN_2003 + AC_MSG_ERROR([Fortran compiler lacks required Fortran 2003 features; unsupported Fortran 2003 compiler, remove --enable-fortran2003]) + else + ## echo $HAVE_FORTRAN_2003 + HAVE_FORTRAN_2003="yes" + fi + fi +else + FC="no" +fi + +## Change back to the C language +AC_LANG_POP(Fortran) + +AM_CONDITIONAL([FORTRAN_HAVE_SIZEOF], [test "X$HAVE_SIZEOF" = "Xyes"]) +AM_CONDITIONAL([FORTRAN_HAVE_C_SIZEOF], [test "X$HAVE_C_SIZEOF" = "Xyes"]) +AM_CONDITIONAL([FORTRAN_HAVE_STORAGE_SIZE], [test "X$HAVE_STORAGE_SIZE" = "Xyes"]) +AM_CONDITIONAL([FORTRAN_2003_CONDITIONAL_F], [test "X$HAVE_FORTRAN_2003" = "Xyes"]) +AM_CONDITIONAL([FORTRAN_DEFAULT_REALisDBLE_F], [test "X$FORTRAN_DEFAULT_REALisDBLE" = "Xyes"]) + + + +## ---------------------------------------------------------------------- +## Check if they would like the C++ interface compiled +## +## We need to check for a C++ compiler unconditionally, since +## AC_PROG_CXX defines some macros that Automake 1.9.x uses and will +## miss even if c++ is not enabled. + AC_PROG_CXX + AC_PROG_CXXCPP ## this is checked for when AC_HEADER_STDC is done + +AC_MSG_CHECKING([if c++ interface enabled]) + +AC_ARG_ENABLE([cxx], + [AS_HELP_STRING([--enable-cxx], + [Compile the C++ interface [default=no]])], + [HDF_CXX=$enableval]) + +if test "X$HDF_CXX" = "Xyes"; then + echo "yes" + HDF5_INTERFACES="$HDF5_INTERFACES c++" + + ## Change to the C++ language + AC_LANG_PUSH(C++) + + AC_MSG_CHECKING([if $CXX needs old style header files in includes]) + AC_TRY_RUN([ +#include <iostream> + +int main(void) { return 0; } + ], [ + echo no + ], [ + echo yes + CXXFLAGS="${CXXFLAGS} -DOLD_HEADER_FILENAME" + AM_CXXFLAGS="${AM_CXXFLAGS} -DOLD_HEADER_FILENAME" + ]) + + AC_MSG_CHECKING([if $CXX can handle namespaces]) + AC_TRY_RUN([ +namespace H5 { +int fnord; +} + +int main(void) { + using namespace H5; + fnord = 37; + return 0; +} + ], [ + echo yes + ], [ + echo no + CXXFLAGS="${CXXFLAGS} -DH5_NO_NAMESPACE" + AM_CXXFLAGS="${AM_CXXFLAGS} -DH5_NO_NAMESPACE" + ]) + + AC_MSG_CHECKING([if $CXX supports std]) + AC_TRY_RUN([ +#include <string> + +using namespace std; + +int main(void) { + string myString("testing namespace std"); + return 0; +} + ], [ + echo yes + ], [ + echo no + CXXFLAGS="${CXXFLAGS} -DH5_NO_STD" + AM_CXXFLAGS="${AM_CXXFLAGS} -DH5_NO_STD" + ]) + + AC_MSG_CHECKING([if $CXX supports bool types]) + AC_TRY_RUN([ +int main(void) { + bool flag; + return 0; +} + ], [ + echo yes + ], [ + echo no + CXXFLAGS="${CXXFLAGS} -DBOOL_NOTDEFINED" + AM_CXXFLAGS="${AM_CXXFLAGS} -DBOOL_NOTDEFINED" + ]) + + AC_MSG_CHECKING([if $CXX has offsetof extension]) + AC_TRY_COMPILE([ + #include <stdio.h> + #include <stddef.h> + ],[ + struct index_st + { + unsigned char type; + unsigned char num; + unsigned int len; + }; + typedef struct index_st index_t; + int x,y; + x = offsetof(struct index_st, len); + y = offsetof(index_t, num) + ], + AC_DEFINE([CXX_HAVE_OFFSETOF], [1], + [Define if C++ compiler recognizes offsetof]) + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no])) + + AC_MSG_CHECKING([if $CXX can handle static cast]) + AC_TRY_RUN([ +int main(void) { + float test_float; + int test_int; + test_float = 37.0; + test_int = static_cast <int> (test_float); + return 0; +} + ], [ + echo yes + ], [ + echo no + CXXFLAGS="${CXXFLAGS} -DNO_STATIC_CAST" + AM_CXXFLAGS="${AM_CXXFLAGS} -DNO_STATIC_CAST" + ]) +else + echo "no" + CXX="no" +fi + +## Change back to the C language +AC_LANG_POP(C++) + +## ---------------------------------------------------------------------- +## Check if they have Perl installed on their system. We only need Perl +## if they're using a GNU compiler. +## +AC_SUBST([PERL]) PERL="" +if test "X$GCC" = "Xyes"; then + AC_CHECK_PROGS([PERL], [perl],, [$PATH]) +fi + + +## ---------------------------------------------------------------------- +## Check which archiving tool to use. This needs to be done before +## the AM_PROG_LIBTOOL macro. +## + +if test -z "$AR"; then + AC_CHECK_PROGS([AR], [ar xar], [:], [$PATH]) +fi +AC_SUBST([AR]) + +## Export the AR macro so that it will be placed in the libtool file +## correctly. +export AR + +AC_PROG_MAKE_SET +AC_PROG_INSTALL + + +## ---------------------------------------------------------------------- +## Check that the tr utility is working properly. + +AC_PATH_PROG([TR], [tr]) + +TR_TEST=`echo Test | ${TR} ${as_cr_letters}"," ${as_cr_LETTERS}" "` +if test "X${TR_TEST}" != "XTEST"; then + AC_MSG_ERROR([tr program doesn't work]) +fi + + +## ---------------------------------------------------------------------- +## Check that time can be used with srcdir. This is okay on most systems, +## but seems to cause problems on Cygwin. +## The solution on Cygwin is not to record execution time for tests. +AC_MSG_CHECKING([if srcdir= and time commands work together]) + +AC_SUBST([TIME]) +TIME=time +TIME_TEST=`foo="bar" ${TIME} echo 'baz' 2> /dev/null | grep baz` + +if test "X${TIME_TEST}" = "Xbaz"; then + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) + TIME= +fi + + +## The following variables are used to distinguish between building a +## serial and parallel library. +## +## HAVE_PARALLEL -- defined in H5config.h if we are building +## a parallel library even if configure wasn't +## able to find some header file or library that +## might be required. This is defined if the +## compiler looks like a parallel compiler (e.g., +## mpicc or mpcc) or if the user explicitly states +## that a parallel library is being built by supplying +## the `--enable-parallel' configure switch. +## +## PARALLEL -- This variable is set to a non-null value if +## configure thinks we're compiling a parallel +## version of the library. +## +## RUNSERIAL -- This is a command which will be prepended to +## the executable name to run the executable using +## a single process. For serial versions of the +## library this will normally be empty. For parallel +## versions it might be something like `mpiexec -n 1'. +## The value of this variable is substituted in *.in +## files. +## +## RUNPARALLEL -- This is a command which will be prepended to +## the executable name to run the executable on +## multiple processors. For the serial library the +## value will normally be the empty string. For +## parallel library it should be something like +## "mpiexec -n \$\${NPROCS:=6}" where NPROCS will +## eventually contain the number of processors on which +## to run the executable (the double dollarsigns are to +## protect the expansion until make executes the +## command). The value of this variable is +## substituted in *.in files. +## +AC_SUBST([PARALLEL]) +AC_SUBST([RUNSERIAL]) +AC_SUBST([RUNPARALLEL]) +AC_SUBST([TESTPARALLEL]) + +## ---------------------------------------------------------------------- +## If the compiler is obviously a parallel compiler then we're building +## a parallel version of hdf5 and should define HAVE_PARALLEL. Furthermore, +## the name of the compiler might tell us how to run the resulting +## executable. For `mpicc' the executable should be run with `mpiexec' from +## the same directory as mpicc if it exists. +## +case "$CC_BASENAME" in + mpicc) + ## The mpich compiler. Use mpiexec from the same directory if it + ## exists. + PARALLEL=mpicc + AC_MSG_CHECKING([for mpiexec]) + + ## Find the path where mpicc is located. + cmd="`echo $CC | cut -f1 -d' '`" + if (echo $cmd | grep / >/dev/null); then + path="`echo $cmd | sed 's/\(.*\)\/.*$/\1/'`" + else + for path in `echo $PATH | ${TR} ":" " "`; do + if test -x $path/$cmd; then + break + fi + done + fi + + ## Is there an mpiexec at that path? + if test -x $path/mpiexec; then + AC_MSG_RESULT([$path/mpiexec]) + RUNSERIAL="${RUNSERIAL:-none}" + + if test -z "$RUNPARALLEL"; then + RUNPARALLEL="$path/mpiexec -n \$\${NPROCS:=6}" + fi + else + AC_MSG_RESULT([none]) + fi + ;; + + mpcc|mpcc_r) + ## The IBM compiler + PARALLEL="$CC_BASENAME" + ;; + + *) + ## Probably not a parallel compiler, but if `--enable-parallel' + ## is defined below then we're still building a parallel hdf5. + ;; +esac + +## ---------------------------------------------------------------------- +## If the Fortran compiler is obviously a parallel compiler then we're +## building a parallel version of hdf5 and should define HAVE_PARALLEL. +## Furthermore, the name of the compiler might tell us how to run the +## resulting executable. For `mpif90' the executable should be run with +## `mpiexec' from the same directory as mpif90 if it exists. +## + +if test "X$HDF_FORTRAN" = "Xyes" ; then + ## Change to the Fortran 90 language + AC_LANG_PUSH(Fortran) + + case "$FC" in + *mpif90*) + ## The Fortran mpich compiler. Use mpiexec from the same directory + ## if it exists. + PARALLEL=mpif90 + AC_MSG_CHECKING([for mpiexec]) + + ## Find the path where mpif90 is located. + cmd=`echo $FC |cut -f1 -d' '` + if (echo $cmd |grep / >/dev/null); then + path="`echo $cmd |sed 's/\(.*\)\/.*$/\1/'`" + else + for path in `echo $PATH | ${TR} ":" " "`; do + if test -x $path/$cmd; then + break; + fi + done + fi + + ## Is there an mpiexec at that path? + if test -x $path/mpiexec; then + AC_MSG_RESULT([$path/mpiexec]) + RUNSERIAL="${RUNSERIAL:-none}" + + if test -z "$RUNPARALLEL"; then + RUNPARALLEL="$path/mpiexec -n \$\${NPROCS:=6}" + fi + else + AC_MSG_RESULT([none]) + fi + ;; + + *mpxlf* | *mpxlf_r* | *mpxlf90* | *mpxlf90_r* | *mpxlf95* | *mpxlf95_r*) + ## The IBM compiler + PARALLEL="$FC" + ;; + + *) + ## Probably not a parallel compiler, but if `--enable-parallel' + ## is defined below then we're still building a parallel hdf5. + ;; + esac + + ## Change to the C language + AC_LANG_POP(Fortran) +fi + +## ----------------------------------------------------------------------------- +## If shared libraries are being used with parallel, disable them, unless the +## user explicity enables them via the '--enable-shared' option. + +if test "X${enable_shared}" = "X" -a "X${enable_parallel}" = "Xyes"; then + echo ' shared libraries disabled in parallel' + enable_shared="no" +elif test "X${enable_shared}" = "Xyes" -a "X${enable_parallel}" = "Xyes"; then + echo ' shared libraries explicitly enabled by user' +elif test "X${enable_shared}" = "X" -a "X${PARALLEL}" != "X"; then + echo ' shared libraries disabled when a parallel compiler is being used' + enable_shared="no" +elif test "X${enable_shared}" = "Xyes" -a "X${PARALLEL}" != "X"; then + echo ' shared libraries explicitly enabled by user' +fi + +## ---------------------------------------------------------------------- +## Fortran libraries are not currently supported on Mac. Disable them. +## (this is overridable with --enable-unsupported). +## +AC_SUBST([H5_FORTRAN_SHARED]) +H5_FORTRAN_SHARED="no" +if test "X${HDF_FORTRAN}" = "Xyes" && test "X${enable_shared}" != "Xno"; then + AC_MSG_CHECKING([if shared Fortran libraries are supported]) + H5_FORTRAN_SHARED="yes" + + ## Disable fortran shared libraries on Mac. (MAM - 03/30/11) + + case "`uname`" in + Darwin*) + H5_FORTRAN_SHARED="no" + CHECK_WARN="Shared Fortran libraries not currently supported on Mac." + ;; + esac + + ## Report results of check(s) + + if test "X${H5_FORTRAN_SHARED}" = "Xno"; then + AC_MSG_RESULT([no]) + AC_MSG_WARN([$CHECK_WARN]) + if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then + AC_MSG_WARN([Disabling shared Fortran libraries.]) + AC_MSG_WARN([To override this behavior, please use --enable-unsupported configure option.]) + if test "X${enable_static}" = "Xno"; then + AC_MSG_ERROR([both static and shared Fortran libraries are disabled]) + fi + else + AC_MSG_WARN([Allowing unsupported Fortran shared libraries due to use of --enable-unsupported flag]) + H5_FORTRAN_SHARED="yes" + fi + else + AC_MSG_RESULT([yes]) + fi +fi + +AM_CONDITIONAL([FORTRAN_SHARED_CONDITIONAL], [test "X$H5_FORTRAN_SHARED" = "Xyes"]) + +## ---------------------------------------------------------------------- +## Disable C++ shared libraries if +DD64 flag is detected. +## +AC_SUBST([H5_CXX_SHARED]) +H5_CXX_SHARED="no" +if test "X${HDF_CXX}" = "Xyes" && test "X${enable_shared}" != "Xno"; then + AC_MSG_CHECKING([if shared C++ libraries are supported]) + H5_CXX_SHARED="yes" + + ## Disable C++ shared libraries if DD64 flag is being used. + + if (echo dummy ${CXX} ${CXXLD} ${CFLAGS} ${CXXFLAGS} ${LDFLAGS} | grep 'DD64') > /dev/null; then + H5_CXX_SHARED="no" + CHECK_WARN="Shared C++ libraries not currently supported with +DD64 flag." + fi + + ## Report results of check(s) + + if test "X${H5_CXX_SHARED}" = "Xno"; then + AC_MSG_RESULT([no]) + AC_MSG_WARN([$CHECK_WARN]) + if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then + AC_MSG_WARN([Disabling shared C++ libraries.]) + AC_MSG_WARN([To override this behavior, please use --enable-unsupported configure option.]) + if test "X${enable_static}" = "Xno"; then + AC_MSG_ERROR([both static and shared C++ libraries are disabled]) + fi + else + AC_MSG_WARN([Allowing unsupported C++ shared librares due to use of --enable-unsupported flag]) + fi + else + AC_MSG_RESULT([yes]) + fi +fi + +AM_CONDITIONAL([CXX_SHARED_CONDITIONAL], [test "X$H5_CXX_SHARED" = "Xyes"]) + +## ---------------------------------------------------------------------- +## pgcc version 6.0x have optimization (-O, -O2 or -O3) problem. Detect +## these versions and add option "-Mx,28,0x8" to the compiler to avoid +## the problem if optimization is enabled. +## + +if (${CC-cc} -V 2>&1 | grep '^pgcc 6.0') > /dev/null && test "X$enable_production" = "Xyes"; then + echo 'adding compiler flag to avoid optimization problem in pgcc' + CC="${CC-cc} -Mx,28,0x8" +fi + +## ---------------------------------------------------------------------- +## Shared libraries are not currently supported under Cygwin, so configure +## disables them unless --enable-unsupported has been supplied by the user. + +if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then + case "`uname`" in + CYGWIN*) + if test "X${enable_shared}" = "Xyes"; then + echo ' warning: shared libraries are not supported on Cygwin!' + echo ' disabling shared libraries' + echo ' use --enable-unsupported to override this warning and keep shared libraries enabled' + fi + enable_shared="no" + ;; + esac +fi + +## ---------------------------------------------------------------------- +## Windows won't create DLLs without the following macro. +## +AC_LIBTOOL_WIN32_DLL + +## ---------------------------------------------------------------------- +## Create libtool. If shared/static libraries are going to be enabled +## or disabled, it should happen before these macros. +LT_PREREQ([2.2]) +LT_INIT([dlopen]) + +## ---------------------------------------------------------------------- +## Check if we should install only statically linked executables. +## This check needs to occur after libtool is initialized because +## we check a libtool cache value and may issue a warning based +## on its result. +AC_MSG_CHECKING([if we should install only statically linked executables]) +AC_ARG_ENABLE([static_exec], + [AS_HELP_STRING([--enable-static-exec], + [Install only statically linked executables + [default=no]])], + [STATIC_EXEC=$enableval]) + +if test "X$STATIC_EXEC" = "Xyes"; then + echo "yes" + ## Issue a warning if -static flag is not supported. + if test "X$lt_cv_prog_compiler_static_works" = "Xno"; then + echo " warning: -static flag not supported on this system; executable won't statically link shared system libraries." + LT_STATIC_EXEC="" + else + LT_STATIC_EXEC="-all-static" + fi +else + echo "no" + LT_STATIC_EXEC="" +fi +AM_CONDITIONAL([USE_PLUGINS_CONDITIONAL], [test "X$LT_STATIC_EXEC" = X]) + +AC_SUBST([LT_STATIC_EXEC]) + +## Fix up the INSTALL macro if it's a relative path. We want the +## full-path to the binary instead. +case "$INSTALL" in + *install-sh*) + INSTALL='\${top_srcdir}/bin/install-sh -c' + ;; +esac + +## ---------------------------------------------------------------------- +## Some users have reported problems with libtool's use of '-Wl,-rpath' to +## link shared libraries in nondefault directories. Allow users to +## disable embedding the rpath information in the executables and to +## instead solely rely on the information in LD_LIBRARY_PATH. +AC_MSG_CHECKING([if -Wl,-rpath should be used to link shared libs in nondefault directories]) +AC_ARG_ENABLE([sharedlib-rpath], + [AS_HELP_STRING([--disable-sharedlib-rpath], + [Disable use of the '=Wl,-rpath' linker option])], + [RPATH=$enableval]) + +case "X-$RPATH" in + X-no) + AC_MSG_RESULT([no]) + runpath_var= + hardcode_libdir_flag_spec= + hardcode_libdir_flag_spec_ld= + hardcode_into_libs=no + ;; + X-|X-yes) + AC_MSG_RESULT([yes]) + ;; + *) + AC_MSG_RESULT([error]) + AC_MSG_ERROR([\'$enableval\' is not a valid rpath type]) + ;; +esac + +## ---------------------------------------------------------------------- +## Sometimes makes think the `.PATH:' appearing before the first rule +## with an action should override the `all' default target. So we have +## to decide what the proper syntax is. +## +AC_MSG_CHECKING([how make searches directories]) +while true; do #for break + ## The most common method is `VPATH=DIR1 DIR2 ...' + cat >maketest <<EOF +VPATH=$srcdir/config $srcdir/src $srcdir/bin +.c.o: + cp $< H5.o + +foo: H5.o + rm -f H5.o + @echo works +EOF + + if (${MAKE-make} -f maketest foo) >/dev/null 2>&1; then + SEARCH_RULE='VPATH=' + SEARCH_SEP=' ' + AC_MSG_RESULT([VPATH=DIR1 DIR2 ...]) + break + fi + + ## The second most common method is like above except with the + ## directories separated by colons. + cat >maketest <<EOF +VPATH=$srcdir/config:$srcdir/src:$srcdir/bin +.c.o: + cp $< H5.o + +foo: H5.o + rm -f H5.o + @echo works +EOF + + if (${MAKE-make} -f maketest foo) >/dev/null 2>&1; then + SEARCH_RULE='VPATH=' + SEARCH_SEP=':' + AC_MSG_RESULT([VPATH=DIR1:DIR2:...]) + break + fi + + ## pmake uses the construct `.PATH: DIR1 DIR2 + cat >maketest <<EOF +.PATH: $srcdir/config $srcdir/src $srcdir/bin +.c.o: + cp $< H5.o + +foo: H5.o + rm -f H5.o + @echo works +EOF + + if (MAKE= ${MAKE-make} -f maketest foo) >/dev/null 2>&1; then + SEARCH_RULE='.PATH: ' + SEARCH_SEP=' ' + AC_MSG_RESULT([.PATH: DIR1 DIR2 ...]) + break + fi + + ## No way for make to search directories + SEARCH_RULE='## SEARCH DISABLED: ' + SEARCH_SEP=' ' + AC_MSG_RESULT([it doesn't]) + if test ! -f configure; then + AC_MSG_ERROR([${MAKE-make} requires the build and source directories to be the same]) + fi + break +done +rm maketest + +## ---------------------------------------------------------------------- +## pmake will throw an error if variables are undefined in a Makefile. +## These errors can be changed to warnings using the -V flag. +## +AC_SUBST([AM_MAKEFLAGS]) AM_MAKEFLAGS="" + +## Don't run test if MAKE is defined but is the empty string +if test -n "${MAKE-make}"; then + + AC_MSG_CHECKING([whether make will build with undefined variables]) + + cat >maketest <<EOF +foo: \$(UNDEFINED) \$(UNDEFINED2) + @echo \$(UNDEFINED3) works +EOF + + if (${MAKE-make} -f maketest foo) >/dev/null 2>&1; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no, setting -V flag]) + AM_MAKEFLAGS="\-V" + fi + + rm maketest +fi + +## ---------------------------------------------------------------------- +## Production flags? Save the value in $CONFIG_MODE so we have it for +## the record. +## +AC_MSG_CHECKING([for production mode]) +AC_ARG_ENABLE([production], + [AS_HELP_STRING([--enable-production], + [Determines how to run the compiler.])]) + +case "X-$enable_production" in + X-yes) + enable_production="yes" + AC_MSG_RESULT([production]) + CONFIG_MODE=production + H5_CFLAGS="$H5_CFLAGS $PROD_CFLAGS" + H5_CPPFLAGS="$H5_CPPFLAGS $PROD_CPPFLAGS" + H5_CXXFLAGS="$H5_CXXFLAGS $PROD_CXXFLAGS" + H5_FCFLAGS="$H5_FCFLAGS $PROD_FCFLAGS" + ;; + X-|X-no) + enable_production="no" + AC_MSG_RESULT([development]) + CONFIG_MODE=development + H5_CFLAGS="$H5_CFLAGS $DEBUG_CFLAGS" + H5_CPPFLAGS="$H5_CPPFLAGS $DEBUG_CPPFLAGS" + H5_CXXFLAGS="$H5_CXXFLAGS $DEBUG_CXXFLAGS" + H5_FCFLAGS="$H5_FCFLAGS $DEBUG_FCFLAGS" + ;; + X-pg|X-profile) + enable_production="profile" + AC_MSG_RESULT([profile]) + CONFIG_MODE=profile + H5_CFLAGS="$H5_CFLAGS $PROFILE_CFLAGS" + H5_CPPFLAGS="$H5_CPPFLAGS $PROFILE_CPPFLAGS" + H5_CXXFLAGS="$H5_CXXFLAGS $PROFILE_CXXFLAGS" + H5_FCFLAGS="$H5_FCFLAGS $PROFILE_FCFLAGS" + ;; + *) + enable_production="user-defined" + AC_MSG_RESULT([user-defined]) + CONFIG_MODE="$enableval" + ;; +esac + +## ---------------------------------------------------------------------- +## Check for system libraries. "dl" stands for dynamically loaded library +## +AC_CHECK_LIB([m], [ceil]) +AC_CHECK_LIB([dl], [dlopen]) + +if test "`uname`" = "SunOS" -o "`uname -sr`" = "HP-UX B.11.00"; then + ## ...for Solaris + AC_CHECK_LIB([socket], [socket]) + AC_CHECK_LIB([nsl], [xdr_int]) +fi + +dnl AC_CHECK_LIB([coug], [main]) ## ...for ASCI/Red + +## ---------------------------------------------------------------------- +## Check for system header files. +## +AC_HEADER_STDC +AC_HEADER_TIME + +## ---------------------------------------------------------------------- +## Check for these two functions before the time headers are checked +## for, otherwise they are not detected correctly on Solaris (the +## configure test will fail due to multiply-defined symbols). +## +AC_CHECK_FUNCS([difftime]) +AC_CHECK_FUNCS([gettimeofday], [have_gettime="yes"], [have_gettime="no"]) +AC_SEARCH_LIBS([clock_gettime], [rt posix4]) +AC_CHECK_FUNCS([clock_gettime],[have_clock_gettime="yes"],[have_clock_gettime="no"]) + +## Unix +AC_CHECK_HEADERS([sys/resource.h sys/time.h unistd.h sys/ioctl.h sys/stat.h]) +AC_CHECK_HEADERS([sys/socket.h sys/types.h]) +AC_CHECK_HEADERS([stddef.h setjmp.h features.h]) +AC_CHECK_HEADERS([dirent.h]) +AC_CHECK_HEADERS([stdint.h], [C9x=yes]) + +## Darwin +AC_CHECK_HEADERS([mach/mach_time.h]) +## Also need to detect Darwin for pubconf +case $host_os in + darwin*) + AC_DEFINE([HAVE_DARWIN], [1], [Define if Darwin or Mac OS X]) + ;; +esac + +## Windows +case "`uname`" in + CYGWIN*) + AC_CHECK_HEADERS([io.h sys/timeb.h]) + ;; + MINGW*) + AC_CHECK_HEADERS([io.h winsock2.h sys/timeb.h]) + AC_HAVE_LIBRARY([ws2_32]) + ;; + *) + AC_CHECK_HEADERS([io.h winsock2.h sys/timeb.h]) + ;; +esac + +case "$host" in + alpha*-dec*-osf*) + ## The <sys/sysinfo.h> and <sys/proc.h> are needed on the DEC + ## Alpha to turn off UAC fixing. We do *not* attempt to + ## locate these files on other systems because there are too + ## many problems with including them. + AC_CHECK_HEADERS([sys/sysinfo.h sys/proc.h]) + ;; + mips*-sgi*-irix*) + ## The <sys/fpu.h> is needed on the SGI machines to turn off + ## denormalized floating-point values going to zero. We do *not* + ## attempt to locate these files on other systems because there + ## may be problems with including them. + AC_CHECK_HEADERS([sys/fpu.h]) + AC_CHECK_FUNCS([get_fpc_csr]) + ;; +esac + +## ---------------------------------------------------------------------- +## Some platforms require that all symbols are resolved when a library +## is linked. We can use the -no-undefined flag to tell libtool that +## it will be able to build shared libraries on these architectures, +## as it will not do so by default. +## +if test "X${enable_shared}" = "Xyes"; then + AC_MSG_CHECKING([if libtool needs -no-undefined flag to build shared libraries]) + case "`uname`" in + CYGWIN*|MINGW*|AIX*) + ## Add in the -no-undefined flag to LDFLAGS for libtool. + AC_MSG_RESULT([yes]) + H5_LDFLAGS="$H5_LDFLAGS -no-undefined" + ;; + *) + ## Don't add in anything. + AC_MSG_RESULT([no]) + ;; + esac +fi + +## ---------------------------------------------------------------------- +## Test for Largefile support. +## +AC_MSG_CHECKING([if configure should try to set up large file support]) + +AC_ARG_ENABLE([largefile], + [AS_HELP_STRING([--disable-largefile], + [omit support for large files])]) + +## If largefile support is enabled, then set up appropriate compiler options. +if test "$enable_largefile" != no; then + AC_MSG_RESULT([yes]) + + ## Check for needed compiler options. This check is pulled drectly + ## from autoconf's AC_SYS_LARGEFILE macro, as of Autoconf v2.65. + AC_CACHE_CHECK([for special C compiler options needed for large files], + ac_cv_sys_largefile_CC, + [ac_cv_sys_largefile_CC=no + if test "$GCC" != yes; then + ac_save_CC=$CC + while :; do + ## IRIX 6.2 and later do not support large files by default, + ## so use the C compiler's -n32 option if that helps. + AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])]) + AC_COMPILE_IFELSE([], [break]) + CC="$CC -n32" + AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break]) + break + done + CC=$ac_save_CC + rm -f conftest.$ac_ext + fi]) + if test "$ac_cv_sys_largefile_CC" != no; then + CC=$CC$ac_cv_sys_largefile_CC + fi + + ## Use the macro _AC_SYS_LARGEFILE_MACRO_VALUE to test defines + ## that might need to be set for largefile support to behave + ## correctly. This macro is defined in acsite.m4 and overrides + ## the version provided by Autoconf (as of v2.65). The custom + ## macro additionally adds the appropriate defines to AM_CPPFLAGS + ## so that later configure checks have them visible. + + ## Check for _FILE_OFFSET_BITS + _AC_SYS_LARGEFILE_MACRO_VALUE([_FILE_OFFSET_BITS], [64], + [ac_cv_sys_file_offset_bits], + [Number of bits in a file offset, on hosts where this is settable.], + [_AC_SYS_LARGEFILE_TEST_INCLUDES]) + + ## Check for _LARGE_FILES + if test "$ac_cv_sys_file_offset_bits" = unknown; then + _AC_SYS_LARGEFILE_MACRO_VALUE([_LARGE_FILES], [1], + [ac_cv_sys_large_files], + [Define for large files, on AIX-style hosts.], + [_AC_SYS_LARGEFILE_TEST_INCLUDES]) + fi + + ## Now actually test to see if we can create large files after we've + ## checked for any needed defines. + AC_MSG_CHECKING([if large (64-bit) files are supported on this system.]) + AC_CACHE_VAL([hdf5_cv_have_lfs], + [AC_TRY_RUN([ + #include <stdio.h> + #include <unistd.h> + #include <stdlib.h> + #include <fcntl.h> + #define BIG_FILE (off_t)0x80000000UL + int main(void) { + int fd; + if ((fd=open("test.conf", O_RDWR|O_TRUNC|O_CREAT, 0666)) < 0) exit(1); + if (lseek(fd, BIG_FILE, SEEK_SET)!=BIG_FILE) exit(1); + if (5!=write(fd, "hello", (size_t)5)) exit(1); + if (lseek(fd, 2*BIG_FILE, SEEK_SET) != 2*BIG_FILE) exit(1); + if (5!=write(fd, "hello", (size_t)5)) exit(1); + if (unlink("test.conf") < 0) exit(1); + exit(0); + } + ],[hdf5_cv_have_lfs=yes],[hdf5_cv_have_lfs=no],)]) + + if test "X${hdf5_cv_have_lfs}" = "Xyes"; then + AC_MSG_RESULT([yes]) + LARGEFILE="yes" + fi + if test "X${hdf5_cv_have_lfs}" = "Xno"; then + AC_MSG_RESULT([no]) + LARGEFILE="no" + fi + +else + LARGEFILE="no" + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Add necessary defines for Linux Systems. +## +case "$host_cpu-$host_vendor-$host_os" in + *linux*) + ## If largefile support is enabled, then make available various + ## LFS-related routines using the following _LARGEFILE*_SOURCE macros. + if test "X$LARGEFILE" != "Xno"; then + AM_CPPFLAGS="-D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE $AM_CPPFLAGS" + fi + + ## Add POSIX support on Linux systems, so <features.h> defines + ## __USE_POSIX, which is required to get the prototype for fdopen + ## defined correctly in <stdio.h>. + ## This flag was removed from h5cc as of 2009-10-17 when it was found + ## that the flag broke compiling netCDF-4 code with h5cc, but kept in + ## H5_CPPFLAGS because fdopen and HDfdopen fail without it. HDfdopen + ## is used only by H5_debug_mask which is used only when debugging in + ## H5_init_library (all in H5.c). When the flag was removed this was + ## the only compile failure noted. + ## This was originally defined as _POSIX_SOURCE which was updated to + ## _POSIX_C_SOURCE=199506L to expose a greater amount of POSIX + ## functionality so clock_gettime and CLOCK_MONOTONIC are defined + ## correctly. + ## POSIX feature information can be found in the gcc manual at: + ## http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html + H5_CPPFLAGS="-D_POSIX_C_SOURCE=199506L $H5_CPPFLAGS" + + ## Also add BSD support on Linux systems, so <features.h> defines + ## __USE_BSD, which is required to get the prototype for strdup + ## defined correctly in <string.h> and snprintf & vsnprintf defined + ## correctly in <stdio.h> + ## Linking to the bsd-compat library is required as per the gcc manual: + ## http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html + ## however, we do not do this since it breaks the big test on some + ## older platforms. + AM_CPPFLAGS="-D_BSD_SOURCE $AM_CPPFLAGS" + ;; +esac + +## Need to add the AM_ and H5_ into CFLAGS/CPPFLAGS to make them visible +## for configure checks. +## Note: Both will be restored by the end of configure. +CPPFLAGS="$H5_CPPFLAGS $AM_CPPFLAGS $CPPFLAGS" +CFLAGS="$H5_CFLAGS $AM_CFLAGS $CFLAGS" + +AC_TRY_COMPILE([#include <sys/types.h>], + [off64_t n = 0;], + [AC_CHECK_FUNCS([lseek64 fseeko64 ftello64 ftruncate64])], + [AC_MSG_RESULT([skipping test for lseek64(), fseeko64 , ftello64, ftruncate64() because off64_t is not defined])]) +AC_CHECK_FUNCS([fseeko ftello]) +AC_TRY_COMPILE([ +#include <sys/types.h> +#include <sys/stat.h>], +[struct stat64 sb;], +[AC_CHECK_FUNCS([stat64 fstat64])], +[AC_MSG_RESULT([skipping test for stat64() and fstat64()])]) + +## ---------------------------------------------------------------------- +## Data types and their sizes. +## +AC_TYPE_OFF_T +AC_CHECK_TYPE([size_t], [], + [AC_DEFINE_UNQUOTED([size_t], [unsigned long], + [Define to `unsigned long' if <sys/types.h> does not define.])]) +AC_CHECK_TYPE([ssize_t], [], + [AC_DEFINE_UNQUOTED([ssize_t], [long], + [Define to `long' if <sys/types.h> does not define.])]) +AC_CHECK_TYPE([ptrdiff_t], [], + [AC_DEFINE_UNQUOTED([ptrdiff_t], [long], + [Define to `long' if <sys/types.h> does not define.])]) +AC_C_BIGENDIAN +AC_CHECK_SIZEOF([char], [1]) +AC_CHECK_SIZEOF([short], [2]) +AC_CHECK_SIZEOF([int], [4]) +AC_CHECK_SIZEOF([unsigned], [4]) +AC_CHECK_SIZEOF([long], [4]) +AC_CHECK_SIZEOF([long long], [8]) +AC_CHECK_SIZEOF([__int64], [8]) +AC_CHECK_SIZEOF([float], [4]) +AC_CHECK_SIZEOF([double], [8]) +AC_CHECK_SIZEOF([long double], [8]) + +## Checkpoint the cache +AC_CACHE_SAVE + +## Posix.1g types (C9x) +cat >>confdefs.h <<\EOF +#include <sys/types.h> +EOF + +if test "X$C9x" = "Xyes"; then + cat >>confdefs.h <<\EOF +#include <stdint.h> +EOF +fi + +AC_CHECK_SIZEOF( [int8_t], [1]) +AC_CHECK_SIZEOF( [uint8_t], [1]) +AC_CHECK_SIZEOF( [int_least8_t], [1]) +AC_CHECK_SIZEOF( [uint_least8_t], [1]) +AC_CHECK_SIZEOF( [int_fast8_t], [1]) +AC_CHECK_SIZEOF( [uint_fast8_t], [1]) + +AC_CHECK_SIZEOF( [int16_t], [2]) +AC_CHECK_SIZEOF( [uint16_t], [2]) +AC_CHECK_SIZEOF( [int_least16_t], [2]) +AC_CHECK_SIZEOF([uint_least16_t], [2]) +AC_CHECK_SIZEOF( [int_fast16_t], [2]) +AC_CHECK_SIZEOF( [uint_fast16_t], [2]) + +AC_CHECK_SIZEOF( [int32_t], [4]) +AC_CHECK_SIZEOF( [uint32_t], [4]) +AC_CHECK_SIZEOF( [int_least32_t], [4]) +AC_CHECK_SIZEOF([uint_least32_t], [4]) +AC_CHECK_SIZEOF( [int_fast32_t], [4]) +AC_CHECK_SIZEOF( [uint_fast32_t], [4]) + +AC_CHECK_SIZEOF( [int64_t], [8]) +AC_CHECK_SIZEOF( [uint64_t], [8]) +AC_CHECK_SIZEOF( [int_least64_t], [8]) +AC_CHECK_SIZEOF([uint_least64_t], [8]) +AC_CHECK_SIZEOF( [int_fast64_t], [8]) +AC_CHECK_SIZEOF( [uint_fast64_t], [8]) + +AC_CHECK_SIZEOF([size_t], [4]) +AC_CHECK_SIZEOF([ssize_t], [4]) +AC_CHECK_SIZEOF([ptrdiff_t], [4]) + +cat >>confdefs.h <<\EOF +#include <sys/types.h> /*for off_t definition*/ +EOF +AC_CHECK_SIZEOF([off_t], [4]) +AC_CHECK_SIZEOF([off64_t], [8]) + +## Checkpoint the cache +AC_CACHE_SAVE + +## ---------------------------------------------------------------------- +## Check if the dev_t type is a scalar type (must come after the check for +## sys/types.h) +AC_MSG_CHECKING([if dev_t is scalar]) +AC_TRY_COMPILE([ +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif + ], + [dev_t d1, d2; if(d1==d2) return 0;], + AC_DEFINE([DEV_T_IS_SCALAR], [1], + [Define if `dev_t' is a scalar]) + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no]) +) + +## ---------------------------------------------------------------------- +## Fake --with-xxx option to allow us to create a help message for the +## following --with-xxx options which can take either a =DIR or =INC,LIB +## specifier. +## +AC_ARG_WITH([fnord], + [ + For the following --with-xxx options, you can specify where the header + files and libraries are in two different ways: + + --with-xxx=INC,LIB - Specify individually the include directory and + library directory separated by a comma + --with-xxx=DIR - Specify only the directory which contains the + include/ and lib/ subdirectories + ]) + +## ---------------------------------------------------------------------- +## Is the dmalloc present? It has a header file `dmalloc.h' and a library +## `-ldmalloc' and their locations might be specified with the `--with-dmalloc' +## command-line switch. The value is an include path and/or a library path. +## If the library path is specified then it must be preceded by a comma. +## +AC_ARG_WITH([dmalloc], + [AS_HELP_STRING([--with-dmalloc=DIR], + [Use dmalloc memory debugging aid [default=no]])],, + [withval=no]) + +case $withval in + yes) + HAVE_DMALLOC="yes" + AC_CHECK_HEADERS([dmalloc.h],, [unset HAVE_DMALLOC]) + if test "x$HAVE_DMALLOC" = "xyes"; then + AC_CHECK_LIB([dmalloc], [dmalloc_shutdown],, [unset HAVE_DMALLOC]) + fi + if test -z "$HAVE_DMALLOC" -a -n "$HDF5_CONFIG_ABORT"; then + AC_MSG_ERROR([couldn't find dmalloc library]) + fi + ;; + no) + HAVE_DMALLOC="no" + AC_MSG_CHECKING([for dmalloc library]) + AC_MSG_RESULT([suppressed]) + ;; + *) + HAVE_DMALLOC="yes" + case "$withval" in + *,*) + dmalloc_inc="`echo $withval |cut -f1 -d,`" + dmalloc_lib="`echo $withval |cut -f2 -d, -s`" + ;; + *) + if test -n "$withval"; then + dmalloc_inc="$withval/include" + dmalloc_lib="$withval/lib" + fi + ;; + esac + + ## Trying to include -I/usr/include and -L/usr/lib is redundant and + ## can mess some compilers up. + if test "X$dmalloc_inc" = "X/usr/include"; then + dmalloc_inc="" + fi + if test "X$dmalloc_lib" = "X/usr/lib"; then + dmalloc_lib="" + fi + + saved_CPPFLAGS="$CPPFLAGS" + saved_AM_CPPFLAGS="$AM_CPPFLAGS" + saved_LDFLAGS="$LDFLAGS" + saved_AM_LDFLAGS="$AM_LDFLAGS" + + if test -n "$dmalloc_inc"; then + CPPFLAGS="$CPPFLAGS -I$dmalloc_inc" + AM_CPPFLAGS="$AM_CPPFLAGS -I$dmalloc_inc" + fi + + AC_CHECK_HEADERS([dmalloc.h],,[CPPFLAGS="$saved_CPPFLAGS"; AM_CPPFLAGS="$saved_AM_CPPFLAGS"] [unset HAVE_DMALLOC]) + + if test "x$HAVE_DMALLOC" = "xyes"; then + if test -n "$dmalloc_lib"; then + LDFLAGS="$LDFLAGS -L$dmalloc_lib" + AM_LDFLAGS="$AM_LDFLAGS -L$dmalloc_lib" + fi + + AC_CHECK_LIB([dmalloc], [dmalloc_shutdown],, [LDFLAGS="$saved_LDFLAGS"; AM_LDFLAGS="$saved_AM_LDFLAGS"; unset HAVE_DMALLOC]) + fi + + if test -z "$HAVE_DMALLOC" -a -n "$HDF5_CONFIG_ABORT"; then + AC_MSG_ERROR([couldn't find dmalloc library]) + fi + ;; +esac + +## ---------------------------------------------------------------------- +## Is the GNU zlib present? It has a header file `zlib.h' and a library +## `-lz' and their locations might be specified with the `--with-zlib' +## command-line switch. The value is an include path and/or a library path. +## If the library path is specified then it must be preceded by a comma. +## +AC_SUBST([USE_FILTER_DEFLATE]) USE_FILTER_DEFLATE="no" +AC_ARG_WITH([zlib], + [AS_HELP_STRING([--with-zlib=DIR], + [Use zlib library for external deflate I/O + filter [default=yes]])],, + [withval=yes]) + +case $withval in + yes) + HAVE_ZLIB="yes" + AC_CHECK_HEADERS([zlib.h], [HAVE_ZLIB_H="yes"], [unset HAVE_ZLIB]) + if test "x$HAVE_ZLIB" = "xyes" -a "x$HAVE_ZLIB_H" = "xyes"; then + AC_CHECK_LIB([z], [compress2],, [unset HAVE_ZLIB]) + fi + if test -z "$HAVE_ZLIB"; then + if test -n "$HDF5_CONFIG_ABORT"; then + AC_MSG_ERROR([couldn't find zlib library]) + fi + else + AC_CHECK_FUNC([compress2], [HAVE_COMPRESS2="yes"]) + fi + ;; + no) + HAVE_ZLIB="no" + AC_MSG_CHECKING([for GNU zlib]) + AC_MSG_RESULT([suppressed]) + ;; + *) + HAVE_ZLIB="yes" + case "$withval" in + *,*) + zlib_inc="`echo $withval | cut -f1 -d,`" + zlib_lib="`echo $withval | cut -f2 -d, -s`" + ;; + *) + if test -n "$withval"; then + zlib_inc="$withval/include" + zlib_lib="$withval/lib" + fi + ;; + esac + + ## Trying to include -I/usr/include and -L/usr/lib is redundant and + ## can mess some compilers up. + if test "X$zlib_inc" = "X/usr/include"; then + zlib_inc="" + fi + if test "X$zlib_lib" = "X/usr/lib"; then + zlib_lib="" + fi + + saved_CPPFLAGS="$CPPFLAGS" + saved_AM_CPPFLAGS="$AM_CPPFLAGS" + saved_LDFLAGS="$LDFLAGS" + saved_AM_LDFLAGS="$AM_LDFLAGS" + + if test -n "$zlib_inc"; then + CPPFLAGS="$CPPFLAGS -I$zlib_inc" + AM_CPPFLAGS="$AM_CPPFLAGS -I$zlib_inc" + fi + + AC_CHECK_HEADERS([zlib.h], + [HAVE_ZLIB_H="yes"], + [CPPFLAGS="$saved_CPPFLAGS"; AM_CPPFLAGS="$saved_AM_CPPFLAGS"] [unset HAVE_ZLIB]) + + if test -n "$zlib_lib"; then + LDFLAGS="$LDFLAGS -L$zlib_lib" + AM_LDFLAGS="$AM_LDFLAGS -L$zlib_lib" + fi + + if test "x$HAVE_ZLIB" = "xyes" -a "x$HAVE_ZLIB_H" = "xyes"; then + AC_CHECK_LIB([z], [compress2],, + [LDFLAGS="$saved_LDFLAGS"; AM_LDFLAGS="$saved_AM_LDFLAGS"; unset HAVE_ZLIB]) + fi + + if test -z "$HAVE_ZLIB"; then + if test -n "$HDF5_CONFIG_ABORT"; then + AC_MSG_ERROR([couldn't find zlib library]) + fi + else + AC_CHECK_FUNC([compress2], [HAVE_COMPRESS2="yes"]) + fi + ;; +esac + +if test "x$HAVE_ZLIB" = "xyes" -a "x$HAVE_ZLIB_H" = "xyes" -a "x$HAVE_COMPRESS2" = "xyes"; then + AC_DEFINE([HAVE_FILTER_DEFLATE], [1], [Define if support for deflate (zlib) filter is enabled]) + USE_FILTER_DEFLATE="yes" + + ## Add "deflate" to external filter list + if test "X$EXTERNAL_FILTERS" != "X"; then + EXTERNAL_FILTERS="${EXTERNAL_FILTERS}," + fi + EXTERNAL_FILTERS="${EXTERNAL_FILTERS}deflate(zlib)" +fi + + +## ---------------------------------------------------------------------- +## Is the szlib present? It has a header file `szlib.h' and a library +## `-lsz' and their locations might be specified with the `--with-szlib' +## command-line switch. The value is an include path and/or a library path. +## If the library path is specified then it must be preceded by a comma. +## +AC_SUBST([USE_FILTER_SZIP]) USE_FILTER_SZIP="no" +AC_ARG_WITH([szlib], + [AS_HELP_STRING([--with-szlib=DIR], + [Use szlib library for external szlib I/O + filter [default=no]])],, + [withval=no]) + +case $withval in + yes) + HAVE_SZLIB="yes" + AC_CHECK_HEADERS([szlib.h], [HAVE_SZLIB_H="yes"], [unset HAVE_SZLIB]) + if test "x$HAVE_SZLIB" = "xyes" -a "x$HAVE_SZLIB_H" = "xyes"; then + AC_CHECK_LIB([sz], [SZ_BufftoBuffCompress],, [unset HAVE_SZLIB]) + fi + if test -z "$HAVE_SZLIB" -a -n "$HDF5_CONFIG_ABORT"; then + AC_MSG_ERROR([couldn't find szlib library]) + fi + ;; + no) + HAVE_SZLIB="no" + AC_MSG_CHECKING([for szlib]) + AC_MSG_RESULT([suppressed]) + ;; + *) + HAVE_SZLIB="yes" + case "$withval" in + *,*) + szlib_inc="`echo $withval |cut -f1 -d,`" + szlib_lib="`echo $withval |cut -f2 -d, -s`" + ;; + *) + if test -n "$withval"; then + szlib_inc="$withval/include" + szlib_lib="$withval/lib" + fi + ;; + esac + + ## Trying to include -I/usr/include and -L/usr/lib is redundant and + ## can mess some compilers up. + if test "X$szlib_inc" = "X/usr/include"; then + szlib_inc="" + fi + if test "X$szlib_lib" = "X/usr/lib"; then + szlib_lib="" + fi + + saved_CPPFLAGS="$CPPFLAGS" + saved_AM_CPPFLAGS="$AM_CPPFLAGS" + saved_LDFLAGS="$LDFLAGS" + saved_AM_LDFLAGS="$AM_LDFLAGS" + + if test -n "$szlib_inc"; then + CPPFLAGS="$CPPFLAGS -I$szlib_inc" + AM_CPPFLAGS="$AM_CPPFLAGS -I$szlib_inc" + fi + + AC_CHECK_HEADERS([szlib.h], + [HAVE_SZLIB_H="yes"], + [CPPFLAGS="$saved_CPPFLAGS"; AM_CPPFLAGS="$saved_AM_CPPFLAGS"] [unset HAVE_SZLIB]) + + if test -n "$szlib_lib"; then + LDFLAGS="$LDFLAGS -L$szlib_lib" + AM_LDFLAGS="$AM_LDFLAGS -L$szlib_lib" + fi + + if test "x$HAVE_SZLIB" = "xyes" -a "x$HAVE_SZLIB_H" = "xyes"; then + AC_CHECK_LIB([sz], [SZ_BufftoBuffCompress],, + [LDFLAGS="$saved_LDFLAGS"; AM_LDFLAGS="$saved_AM_LDFLAGS"; unset HAVE_SZLIB]) + fi + + if test -z "$HAVE_SZLIB" -a -n "$HDF5_CONFIG_ABORT"; then + AC_MSG_ERROR([couldn't find szlib library]) + fi + ;; +esac + +if test "x$HAVE_SZLIB" = "xyes" -a "x$HAVE_SZLIB_H" = "xyes"; then + ## SZLIB library is available. Check if it can encode + AC_MSG_CHECKING([for szlib encoder]) + + ## Set LD_LIBRARY_PATH so encoder test can find the library and run. + ## Also add LL_PATH substitution to Makefiles so they can use the + ## path as well, for testing examples. + if test -z "$LD_LIBRARY_PATH"; then + export LD_LIBRARY_PATH="$szlib_lib" + else + export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$szlib_lib" + fi + + AC_SUBST([LL_PATH]) LL_PATH="$LD_LIBRARY_PATH" + + AC_CACHE_VAL([hdf5_cv_szlib_can_encode], + [AC_TRY_RUN([ + #include <szlib.h> + + int main(void) + { + /* SZ_encoder_enabled returns 1 if encoder is present */ + if(SZ_encoder_enabled() == 1) + exit(0); + else + exit(1); + } + ], [hdf5_cv_szlib_can_encode=yes], [hdf5_cv_szlib_can_encode=no],)]) + + AC_DEFINE([HAVE_FILTER_SZIP], [1], + [Define if support for szip filter is enabled]) + USE_FILTER_SZIP="yes" + + if test ${hdf5_cv_szlib_can_encode} = "yes"; then + AC_MSG_RESULT([yes]) + fi + if test ${hdf5_cv_szlib_can_encode} = "no"; then + AC_MSG_RESULT([no]) + fi + + ## Add "szip" to external filter list + if test ${hdf5_cv_szlib_can_encode} = "yes"; then + if test "X$EXTERNAL_FILTERS" != "X"; then + EXTERNAL_FILTERS="${EXTERNAL_FILTERS}," + fi + EXTERNAL_FILTERS="${EXTERNAL_FILTERS}szip(encoder)" + fi + if test ${hdf5_cv_szlib_can_encode} = "no"; then + if test "X$EXTERNAL_FILTERS" != "X"; then + EXTERNAL_FILTERS="${EXTERNAL_FILTERS}," + fi + EXTERNAL_FILTERS="${EXTERNAL_FILTERS}szip(no encoder)" + fi +fi + +AM_CONDITIONAL([BUILD_SHARED_SZIP_CONDITIONAL], [test "X$USE_FILTER_SZIP" = "Xyes" && test "X$LL_PATH" != "X"]) + +## Checkpoint the cache +AC_CACHE_SAVE + +## ---------------------------------------------------------------------- +## Enable thread-safe version of library. It requires Pthreads support +## on POSIX systems. +## +AC_MSG_CHECKING([for thread safe support]) +AC_ARG_ENABLE([threadsafe], + [AS_HELP_STRING([--enable-threadsafe], + [Enable thread-safe capability])], + [THREADSAFE=$enableval]) + +## The --enable-threadsafe flag is not compatible with --enable-cxx. +## If the user tried to specify both flags, throw an error, unless +## they also provided the --enable-unsupported flag. +if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then + if test "X${HDF_CXX}" = "Xyes" -a "X${enable_threadsafe}" = "Xyes"; then + AC_MSG_ERROR([--enable-cxx and --enable-threadsafe flags are incompatible. Use --enable-unsupported to override this error.]) + fi +fi + +## --enable-threadsafe is also incompatible with --enable-fortran, unless +## --enable-unsupported has been specified on the configure line. +if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then + if test "X${HDF_FORTRAN}" = "Xyes" -a "X${enable_threadsafe}" = "Xyes"; then + AC_MSG_ERROR([--enable-fortran and --enable-threadsafe flags are incompatible. Use --enable-unsupported to override this error.]) + fi +fi + +case "X-$THREADSAFE" in + X-|X-no) + AC_MSG_RESULT([no]) + ;; + X-yes) + THREADSAFE=yes + AC_MSG_RESULT([yes]) + ;; + *) + AC_MSG_RESULT([error]) + AC_MSG_ERROR([\'$enableval\' is not a valid threadsafe type]) + ;; +esac + +if test "X$THREADSAFE" = "Xyes"; then + AC_DEFINE([HAVE_THREADSAFE], [1], [Define if we have thread safe support]) + + ## ---------------------------------------------------------------------- + ## Is the pthreads library present? It has a header file `pthread.h' and + ## a library `-lpthread' and their locations might be specified with the + ## `--with-pthread' command-line switch. The value is an include path + ## and/or a library path. If the library path is specified then it must + ## be preceded by a comma. + ## + ## Thread-safety in HDF5 only uses Pthreads via configure, so the + ## default is "yes", though this only has an effect when + ## --enable-threadsafe is specified. + AC_SUBST([HAVE_PTHREAD]) HAVE_PTHREAD=yes + AC_ARG_WITH([pthread], + [AS_HELP_STRING([--with-pthread=DIR], + [Specify alternative path to Pthreads library when thread-safe capability is built])],, + [withval=yes]) + + case "$withval" in + yes) + AC_CHECK_HEADERS([pthread.h],, [unset HAVE_PTHREAD]) + if test "x$HAVE_PTHREAD" = "xyes"; then + AC_CHECK_LIB([pthread], [pthread_self],, [unset HAVE_PTHREAD]) + fi + ;; + no) + AC_MSG_CHECKING([for pthread]) + AC_MSG_RESULT([suppressed]) + unset HAVE_PTHREAD + ;; + *) + case "$withval" in + *,*) + pthread_inc="`echo $withval | cut -f1 -d,`" + pthread_lib="`echo $withval | cut -f2 -d, -s`" + ;; + *) + if test -n "$withval"; then + pthread_inc="$withval/include" + pthread_lib="$withval/lib" + fi + ;; + esac + + ## Trying to include -I/usr/include and -L/usr/lib is redundant and + ## can mess some compilers up. + if test "X$pthread_inc" = "X/usr/include"; then + pthread_inc="" + fi + if test "X$pthread_lib" = "X/usr/lib"; then + pthread_lib="" + fi + + if test -n "$pthread_inc"; then + saved_CPPFLAGS="$CPPFLAGS" + saved_AM_CPPFLAGS="$AM_CPPFLAGS" + CPPFLAGS="$CPPFLAGS -I$pthread_inc" + AM_CPPFLAGS="$AM_CPPFLAGS -I$pthread_inc" + AC_CHECK_HEADERS([pthread.h],, [CPPFLAGS="$saved_CPPFLAGS"; AM_CPPFLAGS="$saved_AM_CPPFLAGS"; unset HAVE_PTHREAD]) + else + AC_CHECK_HEADERS([pthread.h],, [unset HAVE_PTHREAD]) + fi + + if test "x$HAVE_PTHREAD" = "xyes"; then + if test -n "$pthread_lib"; then + saved_LDFLAGS="$LDFLAGS" + saved_AM_LDFLAGS="$AM_LDFLAGS" + LDFLAGS="$LDFLAGS -L$pthread_lib" + AM_LDFLAGS="$AM_LDFLAGS -L$pthread_lib" + AC_CHECK_LIB([pthread], [pthread_self],, + [LDFLAGS="$saved_LDFLAGS"; AM_LDFLAGS="$saved_AM_LDFLAGS"; unset HAVE_PTHREAD]) + else + AC_CHECK_LIB([pthread], [pthread_self],, [unset HAVE_PTHREAD]) + fi + fi + ;; + esac +fi + +## ---------------------------------------------------------------------- +## Check for MONOTONIC_TIMER support (used in clock_gettime). This has +## to be done after any POSIX/BSD defines to ensure that the test gets +## the correct POSIX level on linux. +AC_CHECK_DECL([CLOCK_MONOTONIC],[have_clock_monotonic="yes"],[have_clock_monotonic="no"],[[#include <time.h>]]) + +## ---------------------------------------------------------------------- +## How does one figure out the local time zone? Anyone know of a +## Posix way to do this? +## + +## First check if `struct tm' has a `tm_gmtoff' member. +AC_MSG_CHECKING([for tm_gmtoff in struct tm]) +AC_TRY_COMPILE([ + #include <sys/time.h> + #include <time.h>], [struct tm tm; tm.tm_gmtoff=0;], + [AC_DEFINE([HAVE_TM_GMTOFF], [1], + [Define if `tm_gmtoff' is a member of `struct tm']) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +## check if `struct tm' has a `__tm_gmtoff' member. +AC_MSG_CHECKING([for __tm_gmtoff in struct tm]) +AC_TRY_COMPILE([ + #include <sys/time.h> + #include <time.h>], [struct tm tm; tm.__tm_gmtoff=0;], + [AC_DEFINE([HAVE___TM_GMTOFF], [1], + [Define if `__tm_gmtoff' is a member of `struct tm']) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +## Check whether the global variable `timezone' is defined. +AC_MSG_CHECKING([for global timezone variable]) + +case "`uname`" in + CYGWIN*) + AC_MSG_RESULT([disabled in CYGWIN]) + ;; + *) + AC_TRY_LINK([ + #include <sys/time.h> + #include <time.h>], [timezone=0;], + [AC_DEFINE([HAVE_TIMEZONE], [1], + [Define if `timezone' is a global variable]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + ;; +esac + +## Check whether `struct timezone' is defined. +AC_STRUCT_TIMEZONE +AC_MSG_CHECKING([for struct timezone]) +AC_TRY_COMPILE([ + #include <sys/types.h> + #include <sys/time.h> + #include <time.h>], [struct timezone tz; tz.tz_minuteswest=0;], + [AC_DEFINE([HAVE_STRUCT_TIMEZONE], [1], + [Define if `struct timezone' is defined]) + have_struct_tz="yes" + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +## If gettimeofday() is going to be used, make sure it uses the timezone struct + +if test "$have_gettime" = "yes" -a "$have_struct_tz" = "yes"; then + AC_MSG_CHECKING(whether gettimeofday() gives timezone) + AC_CACHE_VAL([hdf5_cv_gettimeofday_tz], + [AC_TRY_RUN([ + #include <time.h> + #include <sys/time.h> + int main(void) + { + struct timeval tv; + struct timezone tz; + tz.tz_minuteswest = 7777; /* Initialize to an unreasonable number */ + tz.tz_dsttime = 7; + gettimeofday(&tv, &tz); + /* Check whether the function returned any value at all */ + if(tz.tz_minuteswest == 7777 && tz.tz_dsttime == 7) + exit(1); + else exit (0); + }], + [hdf5_cv_gettimeofday_tz=yes], + [hdf5_cv_gettimeofday_tz=no])]) + + if test ${hdf5_cv_gettimeofday_tz} = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE([GETTIMEOFDAY_GIVES_TZ], [1], + [Define if gettimeofday() populates the tz pointer passed in]) + else + AC_MSG_RESULT([no]) + fi +fi + +## ---------------------------------------------------------------------- +## Does the struct stat have the st_blocks field? This field is not Posix. +## +AC_MSG_CHECKING([for st_blocks in struct stat]) +AC_TRY_COMPILE([ + #include <sys/stat.h>],[struct stat sb; sb.st_blocks=0;], + [AC_DEFINE([HAVE_STAT_ST_BLOCKS], [1], + [Define if `struct stat' has the `st_blocks' field]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +## ---------------------------------------------------------------------- +## How do we figure out the width of a tty in characters? +## +AC_CHECK_FUNCS([_getvideoconfig gettextinfo]) +case "`uname`" in + CYGWIN*) + ;; + *) + AC_CHECK_FUNCS([GetConsoleScreenBufferInfo]) + ;; +esac +AC_CHECK_FUNCS([_scrsize ioctl]) + +AC_MSG_CHECKING([for struct videoconfig]) +AC_TRY_COMPILE(,[struct videoconfig w; w.numtextcols=0;], + [AC_DEFINE([HAVE_STRUCT_VIDEOCONFIG], [1], + [Define if `struct videoconfig' is defined]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +AC_MSG_CHECKING([for struct text_info]) +AC_TRY_COMPILE(, [struct text_info w; w.screenwidth=0;], + [AC_DEFINE([HAVE_STRUCT_TEXT_INFO], [1], + [Define if `struct text_info' is defined]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +AC_MSG_CHECKING([for TIOCGWINSZ]) +AC_TRY_COMPILE([#include <sys/ioctl.h>],[int w=TIOCGWINSZ;], + [AC_DEFINE([HAVE_TIOCGWINSZ], [1], + [Define if the ioctl TIOGWINSZ is defined]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +AC_MSG_CHECKING([for TIOCGETD]) +AC_TRY_COMPILE([#include <sys/ioctl.h>],[int w=TIOCGETD;], + [AC_DEFINE([HAVE_TIOCGETD], [1], + [Define if the ioctl TIOCGETD is defined]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + + +## ---------------------------------------------------------------------- +## Check for functions. +## +AC_CHECK_FUNCS([alarm BSDgettimeofday fork frexpf frexpl]) +AC_CHECK_FUNCS([gethostname getpwuid getrusage lstat]) +AC_CHECK_FUNCS([rand_r random setsysinfo]) +AC_CHECK_FUNCS([signal longjmp setjmp siglongjmp sigsetjmp sigprocmask]) +AC_CHECK_FUNCS([snprintf srandom strdup symlink system]) +AC_CHECK_FUNCS([tmpfile asprintf vasprintf waitpid]) + +## Check for vsnprintf() separately, so we can detect situations where it +## doesn't return the correct size for formatted strings that are too large +## for the buffer provided +AC_CHECK_FUNCS([vsnprintf], + + ## Check if vsnprintf() returns correct size for strings that don't fit + ## into the size allowed. If vsnprintf() works correctly on this platform, + ## it should return a value of 42 for the test below + ## + ## Note that vsnprintf fails in two different ways: + ## - In IRIX64, calls to vnsprintf() with a formatted string that + ## is larger than the buffer size allowed incorrectly + ## return the size of the buffer minus one. + ## - In HP/UX, calls to vsnprintf() with a formatted string that + ## is larger than the buffer size allowed incorrectly + ## return (-1) + AC_MSG_CHECKING([if vsnprintf returns correct value]) + + AC_CACHE_VAL([hdf5_cv_vsnprintf_works], + AC_TRY_RUN([ +#include <stdio.h> +#include <stdlib.h> +#include <stdarg.h> + +int test_vsnprintf(const char *fmt,...) +{ + va_list ap; + char *s = malloc(16); + int ret; + + va_start(ap, fmt); + ret=vsnprintf(s,16,"%s",ap); + va_end(ap); + + return(ret!=42 ? 1 : 0); +} + +int main(void) +{ + exit(test_vsnprintf("%s","A string that is longer than 16 characters")); +} + ],[hdf5_cv_vsnprintf_works=yes],[hdf5_cv_vsnprintf_works=no],)) + + if test ${hdf5_cv_vsnprintf_works} = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE([VSNPRINTF_WORKS], [1], + [Define if vsnprintf() returns the correct value for formatted strings that don't fit into size allowed]) + else + AC_MSG_RESULT([no]) + fi + ,) + +## ---------------------------------------------------------------------- +## Check that a lone colon can be used as an argument +## This is not true on Cray X1, which interprets a lone colon as a +## system command. +## +AC_CACHE_CHECK([if lone colon can be used as an argument], + [hdf5_cv_lone_colon], + [ + echo "int main(int argc, char * argv[]) {return 0;}" > conftest.c + $CC $CFLAGS conftest.c -o a.out> /dev/null 2> /dev/null + echo "./a.out :" > conftest.sh + chmod 700 conftest.sh + + ./conftest.sh 2> conftest.out + rm -f a.out + TEST_OUTPUT=`cat conftest.out` + + if test "X$TEST_OUTPUT" = "X"; then + hdf5_cv_lone_colon=yes + else + hdf5_cv_lone_colon=no + fi + ]) + +AC_SUBST([H5_LONE_COLON]) H5_LONE_COLON="$hdf5_cv_lone_colon" + +## ---------------------------------------------------------------------- +## Check compiler characteristics +## +AC_C_CONST +AC_C_INLINE + +AC_MSG_CHECKING([for __attribute__ extension]) +AC_TRY_COMPILE(,[int __attribute__((unused)) x], + [AC_DEFINE([HAVE_ATTRIBUTE], [1], + [Define if the __attribute__(()) extension is present]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +AC_MSG_CHECKING([for __func__ extension]) +AC_TRY_COMPILE(,[ const char *fname = __func__; ], + [AC_DEFINE([HAVE_C99_FUNC], [1], + [Define if the compiler understands the __func__ keyword]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) +AC_MSG_CHECKING([for __FUNCTION__ extension]) +AC_TRY_COMPILE(,[ const char *fname = __FUNCTION__; ], + [AC_DEFINE([HAVE_FUNCTION], [1], + [Define if the compiler understands the __FUNCTION__ keyword]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) +AC_MSG_CHECKING([for C99 designated initialization support]) +AC_TRY_COMPILE(,[ + typedef struct { + int x; + union { + int i; + double d; + } u; + } di_struct_t; + di_struct_t x = {0, { .d = 0.0}}; ], + [AC_DEFINE([HAVE_C99_DESIGNATED_INITIALIZER], [1], + [Define if the compiler understands C99 designated initialization of structs and unions]) + AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no])]) + +## ---------------------------------------------------------------------- +## Try to figure out how to print `long long'. Some machines use `%lld' +## and others use `%qd'. There may be more! The final `l' is a +## default in case none of the others work. +## +AC_MSG_CHECKING([how to print long long]) +AC_CACHE_VAL([hdf5_cv_printf_ll], [ + +for hdf5_cv_printf_ll in l ll L q unknown; do + AC_TRY_RUN([ + #include <stdio.h> + #include <stdlib.h> + #include <string.h> + + int main(void) + { + char *s = malloc(128); + long long x = (long long)1048576 * (long long)1048576; + sprintf(s,"%${hdf5_cv_printf_ll}d",x); + exit(strcmp(s,"1099511627776")); + } + ], [break],,[continue]) +done]) + +AC_MSG_RESULT([%${hdf5_cv_printf_ll}d and %${hdf5_cv_printf_ll}u]) +AC_DEFINE_UNQUOTED([PRINTF_LL_WIDTH], ["$hdf5_cv_printf_ll"], + [Width for printf() for type `long long' or `__int64', use `ll']) + +## ---------------------------------------------------------------------- +## Check if pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM) +## is supported on this system +## +AC_MSG_CHECKING([Threads support system scope]) +AC_CACHE_VAL([hdf5_cv_system_scope_threads], + [AC_TRY_RUN([ + #if STDC_HEADERS + #include <stdlib.h> + #include <pthread.h> + #endif + + int main(void) + { + pthread_attr_t attribute; + int ret; + + pthread_attr_init(&attribute); + ret=pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM); + exit(ret==0 ? 0 : 1); + } + ], [hdf5_cv_system_scope_threads=yes], [hdf5_cv_system_scope_threads=no],)]) + +if test ${hdf5_cv_system_scope_threads} = "yes"; then + AC_DEFINE([SYSTEM_SCOPE_THREADS], [1], + [Define if your system supports pthread_attr_setscope(&attribute, PTHREAD_SCOPE_SYSTEM) call.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Turn on debugging by setting compiler flags +## This must come after the enable-production since it depends on production. +## +AC_MSG_CHECKING([for debug flags]) +AC_ARG_ENABLE([debug], + [AS_HELP_STRING([--enable-debug=all], + [Turn on debugging in all packages. One may + also specify a comma-separated list of + package names without the leading H5 or + the word no. The default is most packages + if production is disabled; no if it is enabled. + ])], + [DEBUG_PKG=$enableval]) + +## Default to no if producton is enabled +if test "X-$DEBUG_PKG" = X- ; then + if test "$enable_production" = yes ; then + DEBUG_PKG=no + else + DEBUG_PKG=yes + fi +fi + +AC_SUBST([DEBUG_PKG]) +all_packages="ac,b,b2,d,e,f,g,hg,hl,i,mf,mm,o,p,s,t,v,z" +case "X-$DEBUG_PKG" in + X-yes) + DEBUG_PKG="d,e,f,g,hg,i,mm,o,p,s,t,v,z" + H5_CPPFLAGS="$H5_CPPFLAGS -UNDEBUG" + AC_MSG_RESULT([default ($DEBUG_PKG)]) + ;; + X-all) + DEBUG_PKG=$all_packages + H5_CPPFLAGS="$H5_CPPFLAGS -UNDEBUG" + AC_MSG_RESULT([all ($DEBUG_PKG)]) + ;; + X-no|X-none) + AC_MSG_RESULT([none]) + DEBUG_PKG= + H5_CPPFLAGS="$H5_CPPFLAGS -DNDEBUG" + ;; + *) + AC_MSG_RESULT([$DEBUG_PKG]) + ;; +esac + +if test -n "$DEBUG_PKG"; then + for pkg in `echo $DEBUG_PKG | ${TR} ${as_cr_letters}"," ${as_cr_LETTERS}" "`; do + H5_CPPFLAGS="$H5_CPPFLAGS -DH5${pkg}_DEBUG" + done +fi + +## ---------------------------------------------------------------------- +## Check if they would like the function stack support compiled in +## +AC_MSG_CHECKING([whether function stack tracking is enabled]) +AC_ARG_ENABLE([codestack], + [AS_HELP_STRING([--enable-codestack], + [Enable the function stack tracing (for developer debugging).])], + [CODESTACK=$enableval]) + +case "X-$CODESTACK" in + X-yes) + CODESTACK=yes + AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_CODESTACK], [1], + [Define if the function stack tracing code is to be compiled in]) + ;; + *) + CODESTACK=no + AC_MSG_RESULT([no]) + ;; +esac + +## ---------------------------------------------------------------------- +## Check if they would like the metadata trace file code compiled in +## +AC_MSG_CHECKING([whether metadata trace file code is enabled]) +AC_ARG_ENABLE([metadata-trace-file], + [AS_HELP_STRING([--enable-metadata-trace-file], + [Enable metadata trace file collection.])], + [METADATATRACEFILE=$enableval]) + +case "X-$METADATATRACEFILE" in + X-yes) + METADATATRACEFILE=yes + AC_MSG_RESULT([yes]) + AC_DEFINE([METADATA_TRACE_FILE], [1], + [Define if the metadata trace file code is to be compiled in]) + ;; + *) + METADATATRACEFILE=no + AC_MSG_RESULT([no]) + ;; +esac + +## ---------------------------------------------------------------------- +## Enable tracing of the API +## This must come after the enable-debug since it depends on debug. +## +AC_SUBST([TRACE_API]) +AC_MSG_CHECKING([for API tracing]); +AC_ARG_ENABLE([trace], + [AS_HELP_STRING([--enable-trace], + [Enable API tracing capability. Default=no + if debug is disabled.])], + [TRACE=$enableval]) + +## Default to no if debug is disabled +if test "X-$TRACE" = X- ; then + if test -z "$DEBUG_PKG" ; then + TRACE=no + else + TRACE=yes + fi +fi + +case "X-$TRACE" in + X-yes) + AC_MSG_RESULT([yes]) + TRACE_API=yes + H5_CPPFLAGS="$H5_CPPFLAGS -DH5_DEBUG_API" + ;; + X-no|*) + AC_MSG_RESULT([no]) + TRACE_API=no + H5_CPPFLAGS="$H5_CPPFLAGS -UH5_DEBUG_API" + ;; +esac + +## ---------------------------------------------------------------------- +## Enable instrumenting of the library's internal operations +## This must come after the enable-debug since it depends on debug. +## +AC_SUBST([INSTRUMENT_LIBRARY]) +AC_MSG_CHECKING([for instrumented library]); +AC_ARG_ENABLE([instrument], + [AS_HELP_STRING([--enable-instrument], + [Enable library instrumentation of optimization + tracing. Default=no if debug is disabled.])], + [INSTRUMENT=$enableval]) + +## Default to no if debug is disabled +if test "X-$INSTRUMENT" = X- ; then + if test -z "$DEBUG_PKG" ; then + INSTRUMENT=no + else + INSTRUMENT=yes + fi +fi + +case "X-$INSTRUMENT" in + X-yes) + AC_MSG_RESULT([yes]) + INSTRUMENT_LIBRARY=yes + AC_DEFINE([HAVE_INSTRUMENTED_LIBRARY], [1], + [Define if library will contain instrumentation to detect correct optimization operation]) + ;; + X-no|*) + AC_MSG_RESULT([no]) + INSTRUMENT_LIBRARY=no + ;; +esac + +## ---------------------------------------------------------------------- +## Check if they would like to securely clear file buffers before they are +## written. +## +AC_SUBST([CLEARFILEBUF]) +AC_MSG_CHECKING([whether to clear file buffers]) +AC_ARG_ENABLE([clear-file-buffers], + [AS_HELP_STRING([--enable-clear-file-buffers], + [Securely clear file buffers before writing + to file. Default=yes.])], + [CLEARFILEBUF=$enableval]) + +case "X-$CLEARFILEBUF" in + *) + CLEARFILEBUF=yes + AC_MSG_RESULT([yes]) + AC_DEFINE([CLEAR_MEMORY], [1], + [Define if the memory buffers being written to disk should be + cleared before writing.]) + ;; + X-no) + CLEARFILEBUF=no + AC_MSG_RESULT([no]) + ;; +esac + +## ---------------------------------------------------------------------- +## Check if they would like to use a memory checking tool (like valgrind's +## 'memcheck' tool, or Rational Purify, etc) and the library should be +## more scrupulous with it's memory operations. Enabling this also +## disables the library's free space manager code. +## +AC_SUBST([USINGMEMCHECKER]) +AC_MSG_CHECKING([whether a memory checking tool will be used]) +AC_ARG_ENABLE([using-memchecker], + [AS_HELP_STRING([--enable-using-memchecker], + [Enable this option if a memory allocation and/or + bounds checking tool will be used on the HDF5 + library. Enabling this causes the library to be + more picky about it's memory operations and also + disables the library's free space manager code. + Default=no.])], + [USINGMEMCHECKER=$enableval]) + +case "X-$USINGMEMCHECKER" in + X-yes) + USINGMEMCHECKER=yes + AC_MSG_RESULT([yes]) + AC_DEFINE([USING_MEMCHECKER], [1], + [Define if a memory checking tool will be used on the library, + to cause library to be very picky about memory operations and + also disable the internal free list manager code.]) + ;; + *) + USINGMEMCHECKER=no + AC_MSG_RESULT([no]) + ;; +esac + +## Checkpoint the cache +AC_CACHE_SAVE + +## What header files and libraries do we have to look for for parallel +## support? For the most part, search paths are already specified with +## CPPFLAGS and LDFLAGS or are known to the compiler. If the user says +## `--disable-parallel' but specifies a known parallel compiler (like mpicc +## or mpcc) then parallel support is enabled but configure doesn't search +## for any parallel header files or libraries. +## +AC_ARG_ENABLE([parallel], + [AS_HELP_STRING([--enable-parallel], + [Search for MPI-IO and MPI support files])]) + +## The --enable-parallel flag is not compatible with --enable-cxx. +## If the user tried to specify both flags, throw an error, unless +## they also provided the --enable-unsupported flag. +if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then + if test "X${HDF_CXX}" = "Xyes" -a "X${enable_parallel}" = "Xyes"; then + AC_MSG_ERROR([--enable-cxx and --enable-parallel flags are incompatible. Use --enable-unsupported to override this error.]) + fi +fi + +## --enable-parallel is also incompatible with --enable-threadsafe, unless +## --enable-unsupported has been specified on the configure line. +if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then + if test "X${THREADSAFE}" = "Xyes" -a "X${enable_parallel}" = "Xyes"; then + AC_MSG_ERROR([--enable-threadsafe and --enable-parallel flags are incompatible. Use --enable-unsupported to override this error.]) + fi +fi + +## It's possible to build in parallel by specifying a parallel compiler +## without using the --enable-parallel flag. This isn't allowed with +## C++ or threadsafe, either, unless the --enable-unsupported flag +## has also been specified. +if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then + if test "X${PARALLEL}" != "X" -a "X${enable_cxx}" = "Xyes" ; then + AC_MSG_ERROR([An MPI compiler is being used; --enable-cxx is not allowed. Use --enable-unsupported to override this error.]) + fi + if test "X${PARALLEL}" != "X" -a "X${THREADSAFE}" = "Xyes"; then + AC_MSG_ERROR([An MPI compiler is being used; --enable-threadsafe is not allowed. Use --enable-unsupported to override this error.]) + fi +fi + +AC_MSG_CHECKING([for parallel support files]) +case "X-$enable_parallel" in + X-|X-no|X-none) + ## Either we are not compiling for parallel or the header and + ## library files and locations are known to the compiler (this is + ## the case for a correct installation of mpicc for instance). + AC_MSG_RESULT([skipped]) + ;; + + X-yes) + ## We want to compile a parallel library with a compiler that + ## may already know how to link with MPI and MPI-IO. + AC_MSG_RESULT([provided by compiler]) + PARALLEL=yes + + ## Try link a simple MPI program. If fail, try again with -lmpi and + ## -lmpich. + AC_TRY_LINK(, [MPI_Init()],, + [AC_CHECK_LIB([mpi], [MPI_Init],, + [AC_CHECK_LIB([mpich], [MPI_Init],, [PARALLEL=no])])]) + + ## Then try link a simple MPI-IO program. If fail, try again with + ## -lmpio. + if test "X$PARALLEL" = "Xyes"; then + AC_TRY_LINK(, [MPI_File_open()],, + [AC_CHECK_LIB([mpio], [MPI_File_open],, [PARALLEL=no])]) + fi + + if test "X$HDF_FORTRAN" = "Xyes"; then + ## Change to the Fortran 90 language + AC_LANG_PUSH(Fortran) + + ## Try link a simple MPI program. If fail, try again with -lmpi. + AC_LINK_IFELSE([ + program main + include 'mpif.h' + integer:: ierr + call mpi_file_open( ierr ) + end],, + [AC_CHECK_LIB([mpi], [mpi_file_open],, [PARALLEL=no])]) + + ## Then try link a simple MPI-IO program. If fail, try again with + ## -lmpio. + if test "X$PARALLEL" = "Xyes"; then + AC_LINK_IFELSE([ + program main + include 'mpif.h' + integer:: ierr + call mpi_file_open( ierr ) + end],, + [AC_CHECK_LIB([mpio], [mpi_file_open],, [PARALLEL=no])]) + fi + + ## Change to the C language + AC_LANG_POP(Fortran) + fi + + ## Set RUNPARALLEL to mpiexec if not set yet. + ## Check for building on Cray if RUNPARALLEL is not yet set by checking + ## for 'aprun' command (which is the parallel job launcher, like mpiexec). + if test "X$PARALLEL" = "Xyes" -a -z "$RUNPARALLEL"; then + ## Find the path where aprun is located. + for path in `echo $PATH | ${TR} ":" " "`; do + if test -x $path/aprun; then + RUNPARALLEL="aprun -q -n \$\${NPROCS:=6}" + break; + fi + done + fi + + ## Set RUNPARALLEL to mpiexec if not set yet. + if test "X$PARALLEL" = "Xyes" -a -z "$RUNPARALLEL"; then + RUNPARALLEL="mpiexec -n \$\${NPROCS:=6}" + fi + ;; + + *) + AC_MSG_RESULT([error]) + AC_MSG_ERROR([\'$enable_parallel\' is not a valid parallel search type]) + ;; +esac + +## ---------------------------------------------------------------------- +## Print some other parallel information and do some sanity checks. +## +AC_SUBST([ADD_PARALLEL_FILES]) ADD_PARALLEL_FILES="no" + +if test -n "$PARALLEL"; then + ## The 'testpar' directory should participate in the build + TESTPARALLEL=testpar + + ## We are building a parallel library + AC_DEFINE([HAVE_PARALLEL], [1], [Define if we have parallel support]) + + ## Display what we found about running programs + AC_MSG_CHECKING([prefix for running on one processor]) + AC_MSG_RESULT([$RUNSERIAL]) + AC_MSG_CHECKING([prefix for running in parallel]) + AC_MSG_RESULT([$RUNPARALLEL]) + + ## Check that we can link a simple MPI and MPI-IO application + AC_MSG_CHECKING([whether a simple MPI-IO program can be linked]) + AC_TRY_LINK(, [MPI_Init(); MPI_File_open();], + [AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no]) + AC_MSG_ERROR([unable to link a simple MPI-IO application])]) + + ## There *must* be some way to run in parallel even if it's just the + ## word `none'. + if test -z "$RUNPARALLEL"; then + AC_MSG_ERROR([no way to run a parallel program]) + fi + + ## If RUNSERIAL or RUNPARALLEL is the word `none' then replace it with + ## the empty string. + if test "X$RUNSERIAL" = "Xnone"; then + RUNSERIAL="" + fi + if test "X$RUNPARALLEL" = "Xnone"; then + RUNPARALLEL="" + fi + + if test "X$HDF_FORTRAN" = "Xyes"; then + ADD_PARALLEL_FILES="yes" + AC_MSG_CHECKING([for MPI_Comm_c2f and MPI_Comm_f2c functions]) + + AC_TRY_LINK([#include <mpi.h>], + [MPI_Comm c_comm; MPI_Comm_c2f(c_comm)], + AC_DEFINE([HAVE_MPI_MULTI_LANG_Comm], [1], + [Define if `MPI_Comm_c2f' and `MPI_Comm_f2c' exists]) + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no]) + ) + + AC_MSG_CHECKING([for MPI_Info_c2f and MPI_Info_f2c functions]) + AC_TRY_LINK([#include <mpi.h>], + [MPI_Info c_info; MPI_Info_c2f(c_info)], + AC_DEFINE([HAVE_MPI_MULTI_LANG_Info], [1], + [Define if `MPI_Info_c2f' and `MPI_Info_f2c' exists]) + AC_MSG_RESULT([yes]), + AC_MSG_RESULT([no]) + ) + fi + + ## -------------------------------------------------------------------- + ## Do we want MPE instrumentation feature on? + ## + ## This must be done after enable-parallel is checked since it depends + ## on a mpich compiler. + ## + MPE=yes + AC_ARG_WITH([mpe], + [AS_HELP_STRING([--with-mpe=DIR], + [Use MPE instrumentation [default=no]])],, + [withval=no]) + + case "X-$withval" in + X-|X-no|X-none) + AC_MSG_CHECKING([for MPE]) + AC_MSG_RESULT([suppressed]) + unset MPE + ;; + X-yes) + AC_CHECK_HEADERS([mpe.h],, [unset MPE]) + AC_CHECK_LIB([mpe], [MPE_Init_log],, [unset MPE]) + AC_CHECK_LIB([lmpe], [MPE_Init_mpi_io],, [unset MPE]) + ;; + *) + case "$withval" in + *,*) + mpe_inc="`echo $withval | cut -f1 -d,`" + mpe_lib="`echo $withval | cut -f2 -d, -s`" + ;; + *) + if test -n "$withval"; then + mpe_inc="$withval/include" + mpe_lib="$withval/lib" + fi + ;; + esac + + ## Trying to include -I/usr/include and -L/usr/lib is redundant and + ## can mess some compilers up. + if test "X$mpe_inc" = "X/usr/include"; then + mpe_inc="" + fi + if test "X$mpe_lib" = "X/usr/lib"; then + mpe_lib="" + fi + + if test -n "$mpe_inc"; then + saved_CPPFLAGS="$CPPFLAGS" + saved_AM_CPPFLAGS="$AM_CPPFLAGS" + CPPFLAGS="$CPPFLAGS -I$mpe_inc" + AM_CPPFLAGS="$AM_CPPFLAGS -I$mpe_inc" + AC_CHECK_HEADERS([mpe.h],, [CPPFLAGS="$saved_CPPFLAGS"; AM_CPPFLAGS="$saved_AM_CPPFLAGS"; unset MPE]) + else + AC_CHECK_HEADERS([mpe.h],, [unset MPE]) + fi + + if test -n "$mpe_lib"; then + saved_LDFLAGS="$LDFLAGS" + saved_AM_LDFLAGS="$AM_LDFLAGS" + LDFLAGS="$LDFLAGS -L$mpe_lib" + AM_LDFLAGS="$AM_LDFLAGS -L$mpe_lib" + AC_CHECK_LIB([mpe], [MPE_Init_log],, + [LDFLAGS="$saved_LDFLAGS"; AM_LDFLAGS="$saved_AM_LDFLAGS"; unset MPE]) + AC_CHECK_LIB([lmpe], [MPE_Init_mpi_io],, + [LDFLAGS="$saved_LDFLAGS"; AM_LDFLAGS="$saved_AM_LDFLAGS"; unset MPE]) + + else + AC_CHECK_LIB([mpe], [MPE_Init_log],, [unset MPE]) + AC_CHECK_LIB([lmpe], [MPE_Init_mpi_io],, [unset MPE]) + fi + ;; + esac + + if test "X-$MPE" = "X-yes"; then + AC_DEFINE([HAVE_MPE], [1], [Define if we have MPE support]) + fi +fi + +## ---------------------------------------------------------------------- +## Turn on internal I/O filters by setting macros in header files +## Internal I/O filters are contained entirely within the library and do +## not depend on external headers or libraries. The shuffle filter is +## an example of an internal filter, while the gzip filter is an example of +## an external filter. Each external filter is controlled with an +## "--with-foo=" configure flag. +## +AC_SUBST([FILTERS]) +AC_SUBST([USE_FILTER_SHUFFLE]) USE_FILTER_SHUFFLE="no" +AC_SUBST([USE_FILTER_FLETCHER32]) USE_FILTER_FLETCHER32="no" +AC_SUBST([USE_FILTER_NBIT]) USE_FILTER_NBIT="no" +AC_SUBST([USE_FILTER_SCALEOFFSET]) USE_FILTER_SCALEOFFSET="no" +AC_MSG_CHECKING([for I/O filters]) +AC_ARG_ENABLE([filters], + [AS_HELP_STRING([--enable-filters=all], + [Turn on all internal I/O filters. One may + also specify a comma-separated list of filters + or the word no. The default is all internal + I/O filters.])], + [FILTERS=$enableval]) + +## Eventually: all_filters="shuffle,foo,bar,baz" +all_filters="shuffle,fletcher32,nbit,scaleoffset" +case "X-$FILTERS" in + X-|X-all) + FILTERS=$all_filters + AC_MSG_RESULT([all ($FILTERS)]) + ;; + X-no|X-none) + AC_MSG_RESULT([none]) + FILTERS="none" + ;; + *) + AC_MSG_RESULT([$FILTERS]) + ;; +esac + +if test -n "$FILTERS"; then + for filter in `echo $FILTERS | tr ${as_cr_letters}',' ${as_cr_LETTERS}' '`; do + ## ------------------------------------------------------------------ + ## Have to use separate 'if' construct for each filter, so that + ## autoheader can detect the AC_DEFINE for each one... + ## + if test $filter = "SHUFFLE"; then + AC_DEFINE([HAVE_FILTER_SHUFFLE], [1], + [Define if support for shuffle filter is enabled]) + USE_FILTER_SHUFFLE="yes" + fi + if test $filter = "FLETCHER32"; then + AC_DEFINE([HAVE_FILTER_FLETCHER32], [1], + [Define if support for Fletcher32 checksum is enabled]) + USE_FILTER_FLETCHER32="yes" + fi + if test $filter = "NBIT"; then + AC_DEFINE([HAVE_FILTER_NBIT], [1], + [Define if support for nbit filter is enabled]) + USE_FILTER_NBIT="yes" + fi + if test $filter = "SCALEOFFSET"; then + AC_DEFINE([HAVE_FILTER_SCALEOFFSET], [1], + [Define if support for scaleoffset filter is enabled]) + USE_FILTER_SCALEOFFSET="yes" + fi + done +fi + +## ---------------------------------------------------------------------- +## This is defined only when we're using CodeWarrior, since it has a +## broken "open()" call. +# +if test 1 = 2; then + AC_DEFINE([NO_SHARED_WRITING], [1], + [Define if shared writing must be disabled (CodeWarrior only)]) +fi + +## -------------------------------------------------------------------------- +## Should the Default Virtual File Driver be compiled? +## + +AC_MSG_CHECKING([for Default Virtual File Driver definition]) +AC_ARG_WITH([default-vfd], + [AS_HELP_STRING([--with-default-vfd=driver], + [Specify default file driver + [default=sec2]])],, + withval=sec2) + +if test "X$withval" = "Xsec2"; then + AC_MSG_RESULT([yes]) + default_vfd=yes + vfd_define=H5FD_SEC2 +elif test "X$withval" = "Xstdio"; then + AC_MSG_RESULT([yes]) + default_vfd=yes + vfd_define=H5FD_STDIO +else + AC_MSG_RESULT([no]) + default_vfd=no +fi + +if test "X$default_vfd" = "Xyes"; then + AC_DEFINE_UNQUOTED([DEFAULT_VFD], [$vfd_define], + [Define the default virtual file driver to compile]) +fi + +## ---------------------------------------------------------------------- +## Check if Direct I/O driver is enabled by --enable-direct-vfd +## + +AC_MSG_CHECKING([for Direct Virtual File Driver support]) + +AC_ARG_ENABLE([direct-vfd], + [AS_HELP_STRING([--enable-direct-vfd], + [Build the Direct I/O Virtual File Driver + [default=yes]])], + [DIRECT_VFD=$enableval], [DIRECT_VFD=yes]) + +if test "$DIRECT_VFD" = "yes"; then + AC_CACHE_VAL([hdf5_cv_direct_io], + [AC_TRY_RUN([ + #include <sys/types.h> + #include <sys/stat.h> + #include <fcntl.h> + int main(void) + { + int fid; + if((fid=open("tst_file", O_CREAT | O_TRUNC | O_DIRECT, 0755))<0) + exit(1); + close(fid); + remove("tst_file"); + exit (0); + }], [AC_TRY_LINK(, [posix_memalign()], [hdf5_cv_direct_io=yes], [hdf5_cv_direct_io=no])], [hdf5_cv_direct_io=no],)]) + + if test ${hdf5_cv_direct_io} = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_DIRECT], [1], + [Define if the direct I/O virtual file driver should be compiled]) + else + AC_MSG_RESULT([no]) + DIRECT_VFD=no + fi +else + AC_MSG_RESULT([suppressed]) +fi + +AM_CONDITIONAL([DIRECT_VFD_CONDITIONAL], [test "X$DIRECT_VFD" = "Xyes"]) + +## ---------------------------------------------------------------------- +## Enable custom plugin default path for library. It requires SHARED support. +## +AC_MSG_CHECKING([for custom plugin default path definition]) +AC_ARG_WITH([default-plugindir], + [AS_HELP_STRING([--with-default-plugindir=location], + [Specify default location for plugins + [default="/usr/local/hdf5/lib/plugin"]])],, + withval="/usr/local/hdf5/lib/plugin") + +if test "X$withval" = "X"; then + AC_MSG_RESULT([default]) + default_plugindir="/usr/local/hdf5/lib/plugin" +else + AC_MSG_RESULT([$withval]) + default_plugindir=$withval +fi + +AC_DEFINE_UNQUOTED([DEFAULT_PLUGINDIR], ["$default_plugindir"], + [Define the default plugins path to compile]) + +## ---------------------------------------------------------------------- +## Decide whether the presence of user's exception handling functions is +## checked and data conversion exceptions are returned. This is mainly +## for the speed optimization of hard conversions. Soft conversions can +## actually benefit little. +## +AC_MSG_CHECKING([whether exception handling functions is checked during data conversions]) +AC_ARG_ENABLE([dconv-exception], + [AS_HELP_STRING([--enable-dconv-exception], + [if exception handling functions is checked during + data conversions [default=yes]])], + [DCONV_EXCEPTION=$enableval], [DCONV_EXCEPTION=yes]) + +if test "$DCONV_EXCEPTION" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE([WANT_DCONV_EXCEPTION], [1], + [Check exception handling functions during data conversions]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Decide whether the data accuracy has higher priority during data +## conversions. If not, some hard conversions will still be prefered even +## though the data may be wrong (for example, some compilers don't +## support denormalized floating values) to maximize speed. +## +AC_MSG_CHECKING([whether data accuracy is guaranteed during data conversions]) +AC_ARG_ENABLE([dconv-accuracy], + [AS_HELP_STRING([--enable-dconv-accuracy], + [if data accuracy is guaranteed during + data conversions [default=yes]])], + [DATA_ACCURACY=$enableval], [DATA_ACCURACY=yes]) + +if test "$DATA_ACCURACY" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE([WANT_DATA_ACCURACY], [1], + [Data accuracy is prefered to speed during data conversions]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can handle converting +## denormalized floating-point values. +## (This flag should be set for all machines, except for the Crays, where +## the cache value is set in it's config file) +## +AC_MSG_CHECKING([if converting denormalized floating-point values is possible]) +AC_CACHE_VAL([hdf5_cv_convert_denormal_float], [hdf5_cv_convert_denormal_float=yes]) + +if test ${hdf5_cv_convert_denormal_float} = "yes"; then + AC_DEFINE([CONVERT_DENORMAL_FLOAT], [1], + [Define if your system can handle converting denormalized floating-point values.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can handle converting +## floating-point to long long values. +## (This flag should be _unset_ for all machines, except for Windows, where +## it's set in the custom Windows H5pubconf.h file) +## +AC_MSG_CHECKING([if converting floating-point values to long long is not working]) +AC_CACHE_VAL([hdf5_cv_convert_float_llong_not_works], [hdf5_cv_convert_float_llong_not_works=no]) + +if test ${hdf5_cv_convert_float_llong_not_works} = "yes"; then + AC_DEFINE([HW_FP_TO_LLONG_NOT_WORKS], [1], + [Define if your system can't handle converting floating-point values to long long.]) + AC_MSG_RESULT([true]) +else + AC_MSG_RESULT([false]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine has window style pathname, +## that is, "drive-letter:\" (e.g. "C:") or "drive-letter:/" (e.g. "C:/"). +## (This flag should be _unset_ for all machines, except for Windows, where +## it's set in the custom Windows H5pubconf.h file) +## +AC_MSG_CHECKING([if the machine has window style path name]) + +case "`uname`" in + MINGW*) + AC_DEFINE([HAVE_WINDOW_PATH], [1], + [Define if your system has window style path name.]) + AC_MSG_RESULT([yes]) + ;; + *) + AC_MSG_RESULT([no]) + ;; +esac + +## ----------------------------------------------------------------------- +## Set flag to indicate that the machine can handle conversion from +## long double to integers accurately. This flag should be set "yes" for +## all machines except all SGIs. For SGIs, some conversions are +## incorrect and its cache value is set "no" in its config/irix6.x and +## irix5.x. +## +AC_MSG_CHECKING([if converting from long double to integers is accurate]) + +if test ${ac_cv_sizeof_long_double} = 0; then + hdf5_cv_ldouble_to_integer_accurate=${hdf5_cv_ldouble_to_integer_accurate=no} +else + AC_CACHE_VAL([hdf5_cv_ldouble_to_integer_accurate], [hdf5_cv_ldouble_to_integer_accurate=yes]) +fi + +if test "${hdf5_cv_ldouble_to_integer_accurate}" = "yes"; then + AC_DEFINE([LDOUBLE_TO_INTEGER_ACCURATE], [1], + [Define if your system can convert long double to integers accurately.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ----------------------------------------------------------------------- +## Set flag to indicate that the machine can do conversion from +## long double to integers regardless of accuracy. This flag should be +## set "yes" for all machines except HP-UX 11.00. For HP-UX 11.00, the +## compiler has 'floating exception' when converting 'long double' to all +## integers except 'unsigned long long'. Other HP-UX systems are unknown +## yet. (1/8/05 - SLU) + +AC_MSG_CHECKING([if converting from long double to integers works]) + +if test ${ac_cv_sizeof_long_double} = 0; then + hdf5_cv_ldouble_to_integer_works=${hdf5_cv_ldouble_to_integer_works=no} +else + AC_CACHE_VAL([hdf5_cv_ldouble_to_integer_works], + [AC_TRY_RUN([ + int main(void) + { + void *align; + long double ld= 9701917572145405952.00L; + unsigned char v1; + short v2; + unsigned int v3; + int ret = 0; + + align = (void*)malloc(sizeof(long double)); + memcpy(align, &ld, sizeof(long double)); + + /*For HU-UX11.00, there's floating exception(core dump) when doing some of casting + *from 'long double' to integers*/ + v1=(unsigned char)(*((long double*)align)); + v2=(short)(*((long double*)align)); + v3=(unsigned int)(*((long double*)align)); + + done: + exit(ret); + } + ], [hdf5_cv_ldouble_to_integer_works=yes], [hdf5_cv_ldouble_to_integer_works=no],)]) +fi + +if test ${hdf5_cv_ldouble_to_integer_works} = "yes"; then + AC_DEFINE([LDOUBLE_TO_INTEGER_WORKS], [1], + [Define if your system can convert from long double to integer values.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ----------------------------------------------------------------------- +## Set flag to indicate that the machine can handle conversion from +## integers to long double. (This flag should be set "yes" for all +## machines except all SGIs, where some conversions are +## incorrect and its cache value is set "no" in its config/irix6.x and +## irix5.x) +## +AC_MSG_CHECKING([if accurately converting from integers to long double]) + +if test ${ac_cv_sizeof_long_double} = 0; then + hdf5_cv_integer_to_ldouble_accurate=${hdf5_cv_integer_to_ldouble_accurate=no} +else + AC_CACHE_VAL([hdf5_cv_integer_to_ldouble_accurate], [hdf5_cv_integer_to_ldouble_accurate=yes]) +fi + +if test ${hdf5_cv_integer_to_ldouble_accurate} = "yes"; then + AC_DEFINE([INTEGER_TO_LDOUBLE_ACCURATE], [1], + [Define if your system can accurately convert from integers to long double values.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can accurately convert +## 'unsigned long' to 'float' values. +## (This flag should be set for all machines, except for Pathscale compiler +## on Sandia's Linux machine where the compiler interprets 'unsigned long' +## values as negative when the first bit of 'unsigned long' is on during +## the conversion to float.) +## +AC_MSG_CHECKING([if accurately converting unsigned long to float values]) + +AC_CACHE_VAL([hdf5_cv_ulong_to_float_accurate], + [AC_TRY_RUN([ + int main(void) + { + int ret = 0; + unsigned long l1; + unsigned long l2; + unsigned long l3; + float f1; + float f2; + float f3; + + + if(sizeof(unsigned long)==8) { + l1 = 0xffffffffffffffffUL; + l2 = 0xffffffffffff0000UL; + l3 = 0xf000000000000000UL; + + f1 = (float)l1; + f2 = (float)l2; + f3 = (float)l3; + + if((f1 < 0) || (f2 < 0) || (f3 < 0)) + ret = 1; + } + +done: + exit(ret); + } + ], [hdf5_cv_ulong_to_float_accurate=yes], [hdf5_cv_ulong_to_float_accurate=no],)]) + +if test ${hdf5_cv_ulong_to_float_accurate} = "yes"; then + AC_DEFINE([ULONG_TO_FLOAT_ACCURATE], [1], + [Define if your system accurately converting unsigned long to float values.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can accurately convert +## 'unsigned (long) long' values to 'float' and 'double' values. +## (This flag should be set for all machines, except for the SGIs, where +## the cache value is set in the config/irix6.x config file) and Solaris +## 64-bit machines, where the short program below tests if round-up is +## correctly handled. +## +AC_MSG_CHECKING([if accurately converting unsigned long long to floating-point values]) + +if test ${host_os_novers} = "solaris2.x"; then + AC_CACHE_VAL([hdf5_cv_ulong_to_fp_bottom_bit_accurate], + [AC_TRY_RUN([ + int main(void) + { + unsigned long l1; + unsigned long l2; + unsigned long l3; + unsigned long l4; + unsigned long long ld1; + unsigned long long ld2; + unsigned long long ld3; + unsigned long long ld4; + double d1, d2, d3, d4; + unsigned char s[8]; + int ret = 0; + + if(sizeof(unsigned long)==8) { + l1 = 0xf000000000000b00UL; /*Round-down case*/ + l2 = 0xf000000000000401UL; /*Round-up case*/ + l3 = 0xf000000000000400UL; /*Round-down case*/ + l4 = 0xf000000000000c00UL; /*Round-up case*/ + + d1 = (double)l1; + d2 = (double)l2; + d3 = (double)l3; + d4 = (double)l4; + } else if(sizeof(unsigned long long)==8) { + ld1 = 0xf000000000000b00ULL; /*Round-down case*/ + ld2 = 0xf000000000000401ULL; /*Round-up case*/ + ld3 = 0xf000000000000400ULL; /*Round-down case*/ + ld4 = 0xf000000000000c00ULL; /*Round-up case*/ + + d1 = (double)ld1; + d2 = (double)ld2; + d3 = (double)ld3; + d4 = (double)ld4; + } else { + ret = 1; + goto done; + } + + memcpy(s, &d1, 8); + if(s[7]!=1) + ret = 1; + + memcpy(s, &d2, 8); + if(s[7]!=1) + ret = 1; + + memcpy(s, &d3, 8); + if(s[7]!=0) + ret = 1; + + memcpy(s, &d4, 8); + if(s[7]!=2) + ret = 1; + +done: + exit(ret); + } + ], [hdf5_cv_ulong_to_fp_bottom_bit_accurate=yes], [hdf5_cv_ulong_to_fp_bottom_bit_accurate=no],)]) +else + AC_CACHE_VAL([hdf5_cv_ulong_to_fp_bottom_bit_accurate], [hdf5_cv_ulong_to_fp_bottom_bit_accurate=yes]) +fi + +if test ${hdf5_cv_ulong_to_fp_bottom_bit_accurate} = "yes"; then + AC_DEFINE([ULONG_TO_FP_BOTTOM_BIT_ACCURATE], [1], + [Define if your system can accurately convert unsigned (long) long values to floating-point values.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can accurately convert +## 'float' or 'double' to 'unsigned long long' values. +## (This flag should be set for all machines, except for PGI compiler +## where round-up happens when the fraction of float-point value is greater +## than 0.5. +## +AC_MSG_CHECKING([if accurately roundup converting floating-point to unsigned long long values]) + +AC_CACHE_VAL([hdf5_cv_fp_to_ullong_accurate], + [AC_TRY_RUN([ + int main(void) + { + float f = 111.60f; + double d = 222.55L; + unsigned long long l1 = (unsigned long long)f; + unsigned long long l2 = (unsigned long long)d; + int ret = 0; + + if(l1 == 112) + ret = 1; + if(l2 == 223) + ret = 1; + +done: + exit(ret); + } + ], [hdf5_cv_fp_to_ullong_accurate=yes], [hdf5_cv_fp_to_ullong_accurate=no],)]) + +if test ${hdf5_cv_fp_to_ullong_accurate} = "yes"; then + AC_DEFINE([FP_TO_ULLONG_ACCURATE], [1], + [Define if your system roundup accurately converting floating-point to unsigned long long values.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can accurately convert +## 'float', 'double' or 'long double' to 'unsigned long long' values. +## (This flag should be set for all machines, except for HP-UX machines +## where the maximal number for unsigned long long is 0x7fffffffffffffff +## during conversion. +## +AC_MSG_CHECKING([if right maximum converting floating-point to unsigned long long values]) + +AC_CACHE_VAL([hdf5_cv_fp_to_ullong_right_maximum], + [AC_TRY_RUN([ + int main(void) + { + float f = 9701917572145405952.00f; + double d1 = 9701917572145405952.00L; + long double d2 = 9701917572145405952.00L; + double d3 = 2e40L; + unsigned long long l1 = (unsigned long long)f; + unsigned long long l2 = (unsigned long long)d1; + unsigned long long l3 = (unsigned long long)d2; + unsigned long long l4; + unsigned long long l5 = 0x7fffffffffffffffULL; + int ret = 0; + + if(l1 <= l5 || l2 <= l5 || l3 <= l5) + ret = 1; + + l4 = (unsigned long long)d3; + if(l4 <= l5) + ret = 1; + +done: + exit(ret); + } + ], [hdf5_cv_fp_to_ullong_right_maximum=yes], [hdf5_cv_fp_to_ullong_right_maximum=no],)]) + +if test ${hdf5_cv_fp_to_ullong_right_maximum} = "yes"; then + AC_DEFINE([FP_TO_ULLONG_RIGHT_MAXIMUM], [1], + [Define if your system has right maximum convert floating-point to unsigned long long values.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can accurately convert +## 'long double' to 'unsigned int' values. (This flag should be set for +## all machines, except for some Intel compilers on some Linux.) +## +AC_MSG_CHECKING([if correctly converting long double to unsigned int values]) + +if test ${ac_cv_sizeof_long_double} = 0; then + hdf5_cv_ldouble_to_uint_accurate=${hdf5_cv_ldouble_to_uint_accurate=no} +else + AC_CACHE_VAL([hdf5_cv_ldouble_to_uint_accurate], + [AC_TRY_RUN([ + int main(void) + { + long double ld = 2733248032.9183987530L; + unsigned int i; + int ret = 0; + + i = (unsigned int)ld; + if(i!=2733248032 && i!=2733248031 && i!=2733248033) + ret = 1; + + done: + exit(ret); + } + ], [hdf5_cv_ldouble_to_uint_accurate=yes], [hdf5_cv_ldouble_to_uint_accurate=no],)]) +fi + +if test ${hdf5_cv_ldouble_to_uint_accurate} = "yes"; then + AC_DEFINE([LDOUBLE_TO_UINT_ACCURATE], [1], + [Define if your system can convert long double to unsigned int values correctly.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can _compile_ +## 'unsigned long long' to 'float' and 'double' typecasts. +## (This flag should be set for all machines, except for under Windows when +## compiled with Visual Studio 6, where the macro value is set in the +## src/H5pubconf.h file) +## +AC_MSG_CHECKING([if compiling unsigned long long to floating-point typecasts work]) +AC_CACHE_VAL([hdf5_cv_ullong_to_fp_cast_works], [hdf5_cv_ullong_to_fp_cast_works=yes]) + +if test ${hdf5_cv_ullong_to_fp_cast_works} = "yes"; then + AC_DEFINE([ULLONG_TO_FP_CAST_WORKS], [1], + [Define if your system can compile unsigned long long to floating-point casts.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can _compile_ +## 'long long' to 'float' and 'double' typecasts. +## (This flag should be set for all machines, except for under Windows when +## compiled with Visual Studio 6, where the macro value is set in the +## src/H5pubconf.h file) +## +AC_MSG_CHECKING([if compiling long long to floating-point typecasts work]) +AC_CACHE_VAL([hdf5_cv_llong_to_fp_cast_works], [hdf5_cv_llong_to_fp_cast_works=yes]) + +if test ${hdf5_cv_llong_to_fp_cast_works} = "yes"; then + AC_DEFINE([LLONG_TO_FP_CAST_WORKS], [1], + [Define if your system can compile long long to floating-point casts.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can convert from +## 'unsigned long long' to 'long double' without precision loss. +## (This flag should be set for all machines, except for FreeBSD(sleipnir) +## where the last 2 bytes of mantissa are lost when compiler tries to do +## the conversion, and Cygwin where compiler doesn't do rounding correctly.) +## +AC_MSG_CHECKING([if converting unsigned long long to long double with precision]) + +if test ${ac_cv_sizeof_long_double} = 0; then + hdf5_cv_ullong_to_ldouble_precision=${hdf5_cv_ullong_to_ldouble_precision=no} +else + AC_CACHE_VAL([hdf5_cv_ullong_to_ldouble_precision], + [AC_TRY_RUN([ + #include <stdlib.h> + #include <string.h> + + int main(void) + { + /* General variables */ + int endian; + int tst_value = 1; + int ret = 0; + + /* For FreeBSD */ + unsigned long long l = 0xa601e80bda85fcefULL; + long double ld; + unsigned char *c1, *c2; + size_t size; + + /* For Cygwin */ + unsigned long long l_cyg = 0xfffffffffffffff0ULL; + long double ld_cyg; + unsigned char *c2_cyg; + size_t size_cyg; + + + /* Determine this system's endianess */ + c1 = (unsigned char*)calloc(1, sizeof(int)); + memcpy((void*)c1, &tst_value, sizeof(int)); + if(c1[0]==1) + endian = 0; /* little endian */ + else + endian = 1; /* big endian */ + + /* For FreeBSD */ + size = sizeof(long double); + memset(&ld, 0, size); + ld = (long double)l; + + c2 = (unsigned char*)calloc(1, size); + memcpy((void*)c2, &ld, size); + + /* Test if the last 2 bytes of mantissa are lost. Mainly for FreeBSD on Intel + * architecture(sleipnir) where it happens. */ + /*if(endian==0 && c2[0]==0 && c2[1]==0)*/ /*little endian*/ + if(endian==0 && c2[0]==0) { /*little endian*/ + ret = 1; + goto done; + } + + /* For Cygwin */ + size_cyg = sizeof(long double); + memset(&ld_cyg, 0, size); + ld_cyg = (long double)l_cyg; + + c2_cyg = (unsigned char*)calloc(1, size_cyg); + memcpy((void*)c2_cyg, &ld_cyg, size_cyg); + + /* Test if the last 4 bytes(roughly) of mantissa are rounded up. Mainly for Cygwin + * where the values like 0xffffffffffffffff, 0xfffffffffffffffe, ..., + * 0xfffffffffffff000 ... are rounded up as 0x0000403f8000000000000000 + * instead of 0x0000403effffffffffffffff, 0x0000403efffffffffffffffe, ..., + * 0x0000403efffffffffffff000 ... + */ + if(endian==0 && c2_cyg[0]==0 && c2_cyg[1]==0 && c2_cyg[2]==0 && c2_cyg[3]==0) + ret = 1; + + done: + if(c1) + free(c1); + if(c2) + free(c2); + if(c2_cyg) + free(c2_cyg); + exit(ret); + } + ], [hdf5_cv_ullong_to_ldouble_precision=yes], [hdf5_cv_ullong_to_ldouble_precision=no],)]) +fi + +if test ${hdf5_cv_ullong_to_ldouble_precision} = "yes"; then + AC_DEFINE([ULLONG_TO_LDOUBLE_PRECISION], [1], + [Define if your system can convert unsigned long long to long double with correct precision.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can handle overflow converting +## all floating-point to all integer types. +## (This flag should be set for all machines, except for Cray X1 where +## floating exception is generated when the floating-point value is greater +## than the maximal integer value). +## +AC_MSG_CHECKING([if overflows normally converting floating-point to integer values]) + +AC_CACHE_VAL([hdf5_cv_fp_to_integer_overflow_works], + [AC_TRY_RUN([ + int main(void) + { + float f = 2147483648.0f; + int i; + + i = (int)f; + +done: + exit(0); + } + ], [hdf5_cv_fp_to_integer_overflow_works=yes], [hdf5_cv_fp_to_integer_overflow_works=no],)]) + +if test ${hdf5_cv_fp_to_integer_overflow_works} = "yes"; then + AC_DEFINE([FP_TO_INTEGER_OVERFLOW_WORKS], [1], + [Define if your system can handle overflow converting floating-point to integer values.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine is using a special algorithm to convert +## 'long double' to '(unsigned) long' values. (This flag should only be set for +## the IBM Power6 Linux. When the bit sequence of long double is +## 0x4351ccf385ebc8a0bfcc2a3c3d855620, the converted value of (unsigned)long +## is 0x004733ce17af227f, not the same as the library's conversion to 0x004733ce17af2282. +## The machine's conversion gets the correct value. We define the macro and disable +## this kind of test until we figure out what algorithm they use. +## +AC_MSG_CHECKING([if using special algorithm to convert long double to (unsigned) long values]) + +if test ${ac_cv_sizeof_long_double} = 0; then + hdf5_cv_ldouble_to_long_special=${hdf5_cv_ldouble_to_long_special=no} +else + AC_CACHE_VAL([hdf5_cv_ldouble_to_long_special], + [AC_TRY_RUN([ + int main(void) + { + long double ld = 20041683600089727.779961L; + long ll; + unsigned long ull; + unsigned char s[16]; + unsigned char s2[8]; + int ret = 1; + + if(sizeof(long double) == 16 && sizeof(long) == 8) { + /*make sure the long double type has 16 bytes in size and + * 11 bits of exponent. If it is, + *the bit sequence should be like below. It's not + *a decent way to check but this info isn't available. */ + memcpy(s, &ld, 16); + if(s[0]==0x43 && s[1]==0x51 && s[2]==0xcc && s[3]==0xf3 && + s[4]==0x85 && s[5]==0xeb && s[6]==0xc8 && s[7]==0xa0 && + s[8]==0xbf && s[9]==0xcc && s[10]==0x2a && s[11]==0x3c) { + + /* Assign the hexadecimal value of long double type. */ + s[0]=0x43; s[1]=0x51; s[2]=0xcc; s[3]=0xf3; + s[4]=0x85; s[5]=0xeb; s[6]=0xc8; s[7]=0xa0; + s[8]=0xbf; s[9]=0xcc; s[10]=0x2a; s[11]=0x3c; + s[12]=0x3d; s[13]=0x85; s[14]=0x56; s[15]=0x20; + + memcpy(&ld, s, 16); + + ll = (long)ld; + memcpy(s2, &ll, 8); + + /* The library's algorithm converts it to 0x 00 47 33 ce 17 af 22 82 + * and gets wrong value 20041683600089730 on the IBM Power6 Linux. + * But the IBM Power6 Linux converts it to 0x00 47 33 ce 17 af 22 7f + * and gets the correct value 20041683600089727. It uses some special + * algorithm. We're going to define the macro and skip the test until + * we can figure out how they do it. */ + if(s2[0]==0x00 && s2[1]==0x47 && s2[2]==0x33 && s2[3]==0xce && + s2[4]==0x17 && s2[5]==0xaf && s2[6]==0x22 && s2[7]==0x7f) + ret = 0; + + ull = (unsigned long)ld; + memcpy(s2, &ull, 8); + + /* The unsigned long is the same as signed long. */ + if(s2[0]==0x00 && s2[1]==0x47 && s2[2]==0x33 && s2[3]==0xce && + s2[4]==0x17 && s2[5]==0xaf && s2[6]==0x22 && s2[7]==0x7f) + ret = 0; + } + } + + done: + exit(ret); + } + ], [hdf5_cv_ldouble_to_long_special=yes], [hdf5_cv_ldouble_to_long_special=no],)]) +fi + +if test ${hdf5_cv_ldouble_to_long_special} = "yes"; then + AC_DEFINE([LDOUBLE_TO_LONG_SPECIAL], [1], + [Define if your system converts long double to (unsigned) long values with special algorithm.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine is using a special algorithm +## to convert some values of '(unsigned) long' to 'long double' values. +## (This flag should be off for all machines, except for IBM Power6 Linux, +## when the bit sequences are 003fff..., 007fff..., 00ffff..., 01ffff..., +## ..., 7fffff..., the compiler uses a unknown algorithm. We define a +## macro and skip the test for now until we know about the algorithm. +## +AC_MSG_CHECKING([if using special algorithm to convert (unsigned) long to long double values]) + +if test ${ac_cv_sizeof_long_double} = 0; then + hdf5_cv_long_to_ldouble_special=${hdf5_cv_long_to_ldouble_special=no} +else + AC_CACHE_VAL([hdf5_cv_long_to_ldouble_special], + [AC_TRY_RUN([ + int main(void) + { + long double ld; + long ll; + unsigned long ull; + unsigned char s[16]; + int flag=0, ret=1; + + /*Determine if long double has 16 byte in size, 11 bit exponent, and + *the bias is 0x3ff */ + if(sizeof(long double) == 16) { + ld = 1.0L; + memcpy(s, &ld, 16); + if(s[0]==0x3f && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 && + s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00) + flag = 1; + } + + if(flag==1 && sizeof(long)==8) { + ll = 0x003fffffffffffffL; + ld = (long double)ll; + memcpy(s, &ld, 16); + /* The library converts the value to 0x434fffffffffffff8000000000000000. + * In decimal it is 18014398509481982.000000, one value short of the original. + * The IBM Power6 Linux converts it to 0x4350000000000000bff0000000000000. + * The value is correct in decimal. It uses some special + * algorithm. We're going to define the macro and skip the test until + * we can figure out how they do it. */ + if(s[0]==0x43 && s[1]==0x50 && s[2]==0x00 && s[3]==0x00 && + s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00 && + s[8]==0xbf && s[9]==0xf0 && s[10]==0x00 && s[11]==0x00 && + s[12]==0x00 && s[13]==0x00 && s[14]==0x00 && s[15]==0x00) + ret = 0; + } + if(flag==1 && sizeof(unsigned long)==8) { + ull = 0xffffffffffffffffUL; + ld = (long double)ull; + memcpy(s, &ld, 16); + /* Use a different value from signed long to test. The problem is the same + * for both long and unsigned long. The value is 18446744073709551615. + * The library converts the value to 0x43effffffffffffffe000000000000000. + * In decimal it's 18446744073709548544.000000, very different from the original. + * The IBM Power6 Linux converts it to 0x43f0000000000000bff0000000000000. + * The value is correct in decimal. It uses some special + * algorithm. We're going to define the macro and skip the test until + * we can figure out how they do it. */ + if(s[0]==0x43 && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 && + s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00 && + s[8]==0xbf && s[9]==0xf0 && s[10]==0x00 && s[11]==0x00 && + s[12]==0x00 && s[13]==0x00 && s[14]==0x00 && s[15]==0x00) + ret = 0; + } + done: + exit(ret); + } + ], [hdf5_cv_long_to_ldouble_special=yes], [hdf5_cv_long_to_ldouble_special=no],)]) +fi + +if test ${hdf5_cv_long_to_ldouble_special} = "yes"; then + AC_DEFINE([LONG_TO_LDOUBLE_SPECIAL], [1], + [Define if your system can convert (unsigned) long to long double values with special algorithm.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can accurately convert +## 'long double' to '(unsigned) long long' values. (This flag should be set for +## all machines, except for Mac OS 10.4 and SGI IRIX64 6.5. When the bit sequence +## of long double is 0x4351ccf385ebc8a0bfcc2a3c..., the values of (unsigned)long long +## start to go wrong on these two machines. Adjusting it higher to +## 0x4351ccf385ebc8a0dfcc... or 0x4351ccf385ebc8a0ffcc... will make the converted +## values wildly wrong. This test detects this wrong behavior and disable the test. +## +AC_MSG_CHECKING([if correctly converting long double to (unsigned) long long values]) + +if test ${ac_cv_sizeof_long_double} = 0; then + hdf5_cv_ldouble_to_llong_accurate=${hdf5_cv_ldouble_to_llong_accurate=no} +else + AC_CACHE_VAL([hdf5_cv_ldouble_to_llong_accurate], + [AC_TRY_RUN([ + int main(void) + { + long double ld = 20041683600089727.779961L; + long long ll; + unsigned long long ull; + unsigned char s[16]; + int ret = 0; + + if(sizeof(long double) == 16) { + /*make sure the long double type is the same as the failing type + *which has 16 bytes in size and 11 bits of exponent. If it is, + *the bit sequence should be like below. It's not + *a decent way to check but this info isn't available. */ + memcpy(s, &ld, 16); + if(s[0]==0x43 && s[1]==0x51 && s[2]==0xcc && s[3]==0xf3 && + s[4]==0x85 && s[5]==0xeb && s[6]==0xc8 && s[7]==0xa0 && + s[8]==0xbf && s[9]==0xcc && s[10]==0x2a && s[11]==0x3c) { + + /*slightly adjust the bit sequence (s[8]=0xdf). The converted + *values will go wild on Mac OS 10.4 and IRIX64 6.5.*/ + s[0]=0x43; s[1]=0x51; s[2]=0xcc; s[3]=0xf3; + s[4]=0x85; s[5]=0xeb; s[6]=0xc8; s[7]=0xa0; + s[8]=0xdf; s[9]=0xcc; s[10]=0x2a; s[11]=0x3c; + s[12]=0x3d; s[13]=0x85; s[14]=0x56; s[15]=0x20; + + memcpy(&ld, s, 16); + ll = (long long)ld; + ull = (unsigned long long)ld; + + if(ll != 20041683600089728 || ull != 20041683600089728) + ret = 1; + } + } + done: + exit(ret); + } + ], [hdf5_cv_ldouble_to_llong_accurate=yes], [hdf5_cv_ldouble_to_llong_accurate=no],)]) +fi + +if test ${hdf5_cv_ldouble_to_llong_accurate} = "yes"; then + AC_DEFINE([LDOUBLE_TO_LLONG_ACCURATE], [1], + [Define if your system can convert long double to (unsigned) long long values correctly.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine can accurately convert +## '(unsigned) long long' to 'long double' values. (This flag should be set for +## all machines, except for Mac OS 10.4, when the bit sequences are 003fff..., +## 007fff..., 00ffff..., 01ffff..., ..., 7fffff..., the converted values are twice +## as big as they should be. +## +AC_MSG_CHECKING([if correctly converting (unsigned) long long to long double values]) + +if test ${ac_cv_sizeof_long_double} = 0; then + hdf5_cv_llong_to_ldouble_correct=${hdf5_cv_llong_to_ldouble_correct=no} +else + AC_CACHE_VAL([hdf5_cv_llong_to_ldouble_correct], + [AC_TRY_RUN([ + int main(void) + { + long double ld; + long long ll; + unsigned long long ull; + unsigned char s[16]; + int flag=0, ret=0; + + /*Determine if long double has 16 byte in size, 11 bit exponent, and + *the bias is 0x3ff */ + if(sizeof(long double) == 16) { + ld = 1.0L; + memcpy(s, &ld, 16); + if(s[0]==0x3f && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 && + s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00) + flag = 1; + } + + if(flag==1 && sizeof(long long)==8) { + ll = 0x01ffffffffffffffLL; + ld = (long double)ll; + memcpy(s, &ld, 16); + /*Check if the bit sequence is as supposed to be*/ + if(s[0]!=0x43 || s[1]!=0x7f || s[2]!=0xff || s[3]!=0xff || + s[4]!=0xff || s[5]!=0xff || s[6]!=0xff || s[7]!=0xff || + s[8]!=0xf0 || s[9]!=0x00 || s[10]!=0x00 || s[11]!=0x00) + ret = 1; + } + if(flag==1 && sizeof(unsigned long long)==8) { + ull = 0x01ffffffffffffffULL; + ld = (long double)ull; + memcpy(s, &ld, 16); + if(s[0]!=0x43 || s[1]!=0x7f || s[2]!=0xff || s[3]!=0xff || + s[4]!=0xff || s[5]!=0xff || s[6]!=0xff || s[7]!=0xff || + s[8]!=0xf0 || s[9]!=0x00 || s[10]!=0x00 || s[11]!=0x00) + ret = 1; + } + done: + exit(ret); + } + ], [hdf5_cv_llong_to_ldouble_correct=yes], [hdf5_cv_llong_to_ldouble_correct=no],)]) +fi + +if test ${hdf5_cv_llong_to_ldouble_correct} = "yes"; then + AC_DEFINE([LLONG_TO_LDOUBLE_CORRECT], [1], + [Define if your system can convert (unsigned) long long to long double values correctly.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set the flag to indicate that the machine generates bad code +## for the H5VM_log2_gen() routine in src/H5VMprivate.h +## (This flag should be set to no for all machines, except for SGI IRIX64, +## where the cache value is set to yes in it's config file) +## +AC_MSG_CHECKING([if bad code for log2 routine is generated]) +AC_CACHE_VAL([hdf5_cv_bad_log2_code_generated], [hdf5_cv_bad_log2_code_generated=no]) + +if test ${hdf5_cv_bad_log2_code_generated} = "yes"; then + AC_DEFINE([BAD_LOG2_CODE_GENERATED], [1], + [Define if your system generates wrong code for log2 routine.]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +## ---------------------------------------------------------------------- +## Set some variables for general configuration information to be saved +## and installed with the libraries. +## + +## HDF5 version from the first line of the README.txt file. +H5_VERSION="`cut -d' ' -f3 $srcdir/README.txt | head -1`" +AC_SUBST([H5_VERSION]) + +## Configuration date +AC_SUBST([CONFIG_DATE]) CONFIG_DATE="`date`" + +## User doing the configuration +AC_SUBST([CONFIG_USER]) CONFIG_USER="`whoami`@`hostname`" +if test -n "$ORGANIZATION"; then + CONFIG_USER="$CONFIG_USER at $ORGANIZATION" +fi + +## Configuration mode (production, development, profile, etc) saved above. +AC_SUBST([CONFIG_MODE]) + +## Byte sex from the AC_C_BIGENDIAN macro. +AC_SUBST([BYTESEX]) +if test "X$ac_cv_c_bigendian" = "Xyes"; then + BYTESEX="big-endian" +else + BYTESEX="little-endian" +fi + + +if test "X$ac_cv_c_bigendian" = "Xyes"; then + WORDS_BIGENDIAN="yes" +else + WORDS_BIGENDIAN="no" +fi +AC_SUBST([WORDS_BIGENDIAN]) + +## Parallel support? (set above except empty if none) +PARALLEL=${PARALLEL:-no} + +## Compiler with version information. This consists of the full path +## name of the compiler and the reported version number. +AC_SUBST([CC_VERSION]) +## Strip anything that looks like a flag off of $CC +CC_NOFLAGS=`echo $CC | sed 's/ -.*//'` + +if `echo $CC_NOFLAGS | grep ^/ >/dev/null 2>&1`; then + CC_VERSION="$CC" +else + CC_VERSION="$CC"; + for x in `echo $PATH | sed -e 's/:/ /g'`; do + if test -x $x/$CC_NOFLAGS; then + CC_VERSION="$x/$CC" + break + fi + done +fi +if test -n "$cc_version_info"; then + CC_VERSION="$CC_VERSION ( $cc_version_info)" +fi + +AC_SUBST([FC_VERSION]) +## Strip anything that looks like a flag off of $FC +FC_NOFLAGS=`echo $FC | sed 's/ -.*//'` + +if `echo $FC_NOFLAGS | grep ^/ >/dev/null 2>&1`; then + FC_VERSION="$FC" +else + FC_VERSION="$FC"; + for x in `echo $PATH | sed -e 's/:/ /g'`; do + if test -x $x/$FC_NOFLAGS; then + FC_VERSION="$x/$FC" + break + fi + done +fi +if test -n "$fc_version_info"; then + FC_VERSION="$FC_VERSION ( $fc_version_info)" +fi + +AC_SUBST([CXX_VERSION]) +## Strip anything that looks like a flag off of $CXX +CXX_NOFLAGS=`echo $CXX | sed 's/ -.*//'` + +if `echo $CXX_NOFLAGS | grep ^/ >/dev/null 2>&1`; then + CXX_VERSION="$CXX" +else + CXX_VERSION="$FC"; + for x in `echo $PATH | sed -e 's/:/ /g'`; do + if test -x $x/$CXX_NOFLAGS; then + CXX_VERSION="$x/$CXX" + break + fi + done +fi +if test -n "$cxx_version_info"; then + CXX_VERSION="$CXX_VERSION ( $cxx_version_info)" +fi + +## ---------------------------------------------------------------------- +## Where is the root of the source tree. Give an absolute address so +## we can find it no matter which directory of the distribution is our +## current directory. The built-in pwd fails on some systems, but the +## /bin/pwd version works OK. +## +if test -x /bin/pwd; then + pwd=/bin/pwd +else + pwd=pwd +fi +AC_SUBST([ROOT]) ROOT="`$pwd`" + +## ---------------------------------------------------------------------- +## Move any compiler-specific libraries into the main LIBS varaible. +## +LIBS="$DEFAULT_LIBS $LIBS" + +## ---------------------------------------------------------------------- +## Determine the runtime libraries we may need to include in the +## libtools command so that executables will find the correct dynamic +## libraries. +## +AC_SUBST([DYNAMIC_DIRS]) DYNAMIC_DIRS="" + +if test -n "$AM_LDFLAGS $LDFLAGS"; then + for d in $AM_LDFLAGS $LDFLAGS ; do + case "$d" in + -L*) + d="`echo $d | sed -e 's/-L//g'`" + case "$d" in + .*) + ## If the path isn't absolute, make it so by + ## prepending the ROOT directory to it. + d=${ROOT}/$d + ;; + esac + DYNAMIC_DIRS="-R${d} $DYNAMIC_DIRS" + ;; + esac + done +fi + +if test -n "$AM_CPPFLAGS"; then + TEMP_CPPFLAGS="" + for d in $AM_CPPFLAGS ; do + case "$d" in + -I.*) + ## If the path isn't absolute, make it so by prepending + ## the ROOT directory to it. + d="`echo $d | sed -e 's/-I//g'`" + d="-I${ROOT}/${d}" + ;; + esac + TEMP_CPPFLAGS="$d $TEMP_CPPFLAGS" + done + AM_CPPFLAGS=$TEMP_CPPFLAGS +fi + +## ---------------------------------------------------------------------- +## Check if they would like the High Level library compiled +## + +AC_SUBST(HL) HL="" +## name of fortran folder inside "hl", if FORTRAN compile is requested +AC_SUBST(HL_FOR) HL_FOR="" +AC_MSG_CHECKING([if high level library is enabled]) +AC_ARG_ENABLE([hl], + [AS_HELP_STRING([--enable-hl], + [Enable the high level library [default=yes]])], + [HDF5_HL=$enableval], + [HDF5_HL=yes]) + +if test "X$HDF5_HL" = "Xyes"; then + echo "yes" + HL="hl" + AC_DEFINE([INCLUDE_HL], [1], + [Define if HDF5's high-level library headers should be included in hdf5.h]) + +## Check if Fortran's default real is double precision. If it is and HL is being built then configure +## should fail due to bug HDFFV-889. + if test "X$FORTRAN_DEFAULT_REALisDBLE" = "Xyes"; then + AC_MSG_ERROR([Fortran high-level routines are not supported when the default REAL is DOUBLE PRECISION, use configure option --disable-hl.]) + fi +else + echo "no" +fi + + +## ---------------------------------------------------------------------- +## Some programs shouldn't be built by default (e.g., programs to generate +## data files used by tests, some optional tests). +## Check if they want such programs built anyway. +## +AC_MSG_CHECKING([additional programs should be built]) +AC_ARG_ENABLE([build-all], + [AS_HELP_STRING([--enable-build-all], + [Build helper programs that only developers should need [default=no]])], + [BUILD_ALL=$enableval], + [BUILD_ALL=no]) + +if test "X$BUILD_ALL" = "Xyes"; then + echo "yes" +else + echo "no" +fi +AM_CONDITIONAL([BUILD_ALL_CONDITIONAL], [test "X$BUILD_ALL" = "Xyes"]) + +## ---------------------------------------------------------------------- +## Enable deprecated public API symbols +## +AC_SUBST([DEPRECATED_SYMBOLS]) +AC_MSG_CHECKING([if deprecated public symbols are available]); +AC_ARG_ENABLE([deprecated-symbols], + [AS_HELP_STRING([--enable-deprecated-symbols], + [Enable deprecated public API symbols [default=yes]])], + [DEPREC_SYMBOLS=$enableval], + [DEPREC_SYMBOLS=yes]) + +case "X-$DEPREC_SYMBOLS" in + X-yes) + AC_MSG_RESULT([yes]) + DEPRECATED_SYMBOLS=yes + ;; + X-no|*) + AC_MSG_RESULT([no]) + DEPRECATED_SYMBOLS=no + AC_DEFINE([NO_DEPRECATED_SYMBOLS], [1], + [Define if deprecated public API symbols are disabled]) + ;; +esac + +## -------------------------------------------------------------------------- +## Which version of the public APIs should the 'base' versioned symbols use? +## + +AC_SUBST([DEFAULT_API_VERSION]) +AC_MSG_CHECKING([which version of public symbols to use by default]) +AC_ARG_WITH([default-api-version], + [AS_HELP_STRING([--with-default-api-version=(v16|v18|v110)], + [Specify default release version of public symbols + [default=v110]])],, + [withval=v110]) + +if test "X$withval" = "Xv16"; then + AC_MSG_RESULT([v16]) + DEFAULT_API_VERSION=v16 + AC_DEFINE([USE_16_API_DEFAULT], [1], + [Define using v1.6 public API symbols by default]) +elif test "X$withval" = "Xv18"; then + AC_MSG_RESULT([v18]) + DEFAULT_API_VERSION=v18 +elif test "X$withval" = "Xv110"; then + AC_MSG_RESULT([v110]) + DEFAULT_API_VERSION=v110 +else + AC_MSG_ERROR([invalid version of public symbols given]) +fi + +## It's an error to try to disable deprecated public API symbols while +## choosing an older version of the public API as the default. However, +## if the user insists on doing this via the --enable-unsupported configure +## flag, we'll let them. +if test "X${ALLOW_UNSUPPORTED}" != "Xyes"; then + if test "X${DEFAULT_API_VERSION}" != "Xv110" -a "X${DEPRECATED_SYMBOLS}" = "Xno" ; then + AC_MSG_ERROR([Removing old public API symbols not allowed when using them as default public API symbols. Use --enable-unsupported to override this error.]) + fi +fi + +## ---------------------------------------------------------------------- +## Enable strict file format checks +## +AC_SUBST([STRICT_FORMAT_CHECKS]) +AC_MSG_CHECKING([whether to perform strict file format checks]); +AC_ARG_ENABLE([strict-format-checks], + [AS_HELP_STRING([--enable-strict-format-checks], + [Enable strict file format checks, default=yes if + debug flag is enabled, no otherwise])], + [STRICT_CHECKS=$enableval]) + +## Default to yes if debug is enabled +if test "X-$STRICT_CHECKS" = X- ; then + if test -z "$DEBUG_PKG" ; then + STRICT_CHECKS=no + else + STRICT_CHECKS=yes + fi +fi + +case "X-$STRICT_CHECKS" in + X-yes) + AC_MSG_RESULT([yes]) + STRICT_FORMAT_CHECKS=yes + AC_DEFINE([STRICT_FORMAT_CHECKS], [1], + [Define if strict file format checks are enabled]) + ;; + X-no|*) + AC_MSG_RESULT([no]) + STRICT_FORMAT_CHECKS=no + ;; +esac + + +## ---------------------------------------------------------------------- +## Enable embedded library information +## +AC_MSG_CHECKING([whether to have library information embedded in the executables]) +AC_ARG_ENABLE([embedded-libinfo], + [AS_HELP_STRING([--enable-embedded-libinfo], + [Enable embedded library information [default=yes]])], + [enable_embedded_libinfo=$enableval], + [enable_embedded_libinfo=yes]) + + if test "${enable_embedded_libinfo}" = "yes"; then + AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_EMBEDDED_LIBINFO], [1], + [Define if library information should be embedded in the executables]) + else + AC_MSG_RESULT([no]) + fi + + +## ---------------------------------------------------------------------- +## Check if pointer alignments are enforced +## +AC_MSG_CHECKING([if alignment restrictions are strictly enforced]) +AC_RUN_IFELSE([ + AC_LANG_PROGRAM([ + #include <stdlib.h> + #include <string.h> + + typedef struct { + size_t len; + void *p; + } hvl_t; + ], [ + char *chp = "beefs"; + char **chpp = malloc (2 * sizeof (char *)); + char **chpp2; + hvl_t vl = { 12345, (void *) chp }; + hvl_t *vlp; + hvl_t *vlp2; + + memcpy ((void *) ((char *) chpp + 1), &chp, sizeof (char *)); + chpp2 = (char **) ((char *) chpp + 1); + if (strcmp (*chpp2, chp)) { + free (chpp); + return 1; + } + free (chpp); + + vlp = malloc (2 * sizeof (hvl_t)); + memcpy ((void *) ((char *) vlp + 1), &vl, sizeof (hvl_t)); + vlp2 = (hvl_t *) ((char *) vlp + 1); + if (vlp2->len != vl.len || vlp2->p != vl.p) { + free (vlp); + return 1; + } + free (vlp); + ]) + ], [ + AC_DEFINE([NO_ALIGNMENT_RESTRICTIONS], [1], [Define if we can violate pointer alignment restrictions]) + AC_MSG_RESULT([no]) + ], [ + AC_MSG_RESULT([yes]) + ], [ + AC_MSG_RESULT([unknown, assuming yes]) + ]) + + +## ---------------------------------------------------------------------- +## Restore user's CFLAGS. +CFLAGS="$saved_user_CFLAGS" +FCFLAGS="$saved_user_FCFLAGS" +CXXFLAGS="$saved_user_CXXFLAGS" +CPPFLAGS="$saved_user_CPPFLAGS" +LDFLAGS="$saved_user_LDFLAGS" + + +## ---------------------------------------------------------------------- +## Create automake conditionals to tell automake makefiles which directories +## need to be compiled + +AM_CONDITIONAL([BUILD_CXX_CONDITIONAL], [test "X$HDF_CXX" = "Xyes"]) +AM_CONDITIONAL([BUILD_PARALLEL_CONDITIONAL], [test -n "$TESTPARALLEL"]) +AM_CONDITIONAL([BUILD_FORTRAN_CONDITIONAL], [test "X$HDF_FORTRAN" = "Xyes"]) +AM_CONDITIONAL([BUILD_HDF5_HL_CONDITIONAL], [test "X$HDF5_HL" = "Xyes"]) + + +## ---------------------------------------------------------------------- +## Build the Makefiles. +## + +## The directory search list +AC_SUBST([SEARCH]) SEARCH='$(srcdir) $(top_builddir)/src $(top_srcdir)/src' +cmd='echo $SEARCH |sed "s/ /'$SEARCH_SEP'/g"' +SEARCH="$SEARCH_RULE`eval $cmd`" +export SEARCH + +## We don't need to say when we're entering directories if we're using +## GNU make because make does it for us. +if test "X$GMAKE" = "Xyes"; then + AC_SUBST([SETX]) SETX=":" +else + AC_SUBST([SETX]) SETX="set -x" +fi + +## Some cleanup stuff +rm -f conftest conftest.o conftest.c dummy.o *.mod + +## Build config.status, touch the stamp files, and build all the Makefiles. +## The order is such that the first `make' does not need to update any +## configuration information. See config/commence.in for the order in which +## things need to be done. + +## First the stamp1 file for H5config.h.in +mkdir ./config >/dev/null 2>&1 +touch ./config/stamp1 + +## Then the config.status file (but not makefiles) +saved_no_create=$no_create +no_create=yes + +PARALLEL_MAKE="" +FORTRAN_PARALLEL_MAKE="" + +if test -n "$TESTPARALLEL"; then + PARALLEL_MAKE="$TESTPARALLEL/Makefile" + + if test "X$HDF_FORTRAN" = "Xyes"; then + FORTRAN_PARALLEL_MAKE=fortran/$TESTPARALLEL/Makefile + fi +fi +LT_OUTPUT +no_create=$saved_no_create + +## Then the stamp2 file for H5config.h +touch ./config/stamp2 + +## Finally the makefiles +test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1 + +## Post processing to patch up some deficiencies in libtool +case $host_os in + linux* | freebsd* ) + ## If gcc is not used, need to set $wl to use "-Wl," + if $CC -v 2>&1 | grep '^gcc' > /dev/null ; then + : using gcc + else + echo 'fixing $wl in' $ofile +ed - $ofile <<EOF 2> /dev/null +g/^wl=""/s//wl="-Wl,"/ +w +q +EOF + fi + ;; +esac + +## Are we compiling static libraries, shared libraries, or both? This +## is only used for the libhdf5.settings file. We can't just look at +## $enable_static and $enable_shared because if they're yes the ltconfig +## might have decided that one or the other is simply not possible. +## Therefore we have to ask the generated `libtool' shell script +## which 'features' it has enabled. +if (./libtool --features | grep '^enable shared libraries' > /dev/null); then + enable_shared=yes +else + enable_shared=no +fi + +if (./libtool --features | grep '^enable static libraries' > /dev/null); then + enable_static=yes +else + enable_static=no +fi + +if test "X$enable_static" = "Xyes" && test "X$enable_shared" = "Xyes"; then + STATIC_SHARED="static, shared" +elif test "X$enable_static" = "Xyes"; then + STATIC_SHARED="static" +elif test "X$enable_shared" = "Xyes"; then + STATIC_SHARED="shared" +else + STATIC_SHARED="none" +fi + +## ---------------------------------------------------------------------- +## Set a macro if shared library is enabled. +## +AM_CONDITIONAL([HAVE_SHARED_CONDITIONAL], [test "X$enable_shared" = "Xyes"]) + +AC_CONFIG_FILES([src/libhdf5.settings + Makefile + src/Makefile + test/Makefile + test/testcheck_version.sh + test/testerror.sh + test/H5srcdir_str.h + test/testlibinfo.sh + test/testlinks_env.sh + test/test_plugin.sh + testpar/Makefile + tools/Makefile + tools/h5dump/Makefile + tools/h5dump/testh5dump.sh + tools/h5dump/testh5dumppbits.sh + tools/h5dump/testh5dumpxml.sh + tools/h5ls/testh5ls.sh + tools/h5import/Makefile + tools/h5import/h5importtestutil.sh + tools/h5diff/Makefile + tools/h5diff/testh5diff.sh + tools/h5diff/testph5diff.sh + tools/h5jam/Makefile + tools/h5jam/testh5jam.sh + tools/h5repack/Makefile + tools/h5repack/h5repack.sh + tools/h5repack/h5repack_plugin.sh + tools/h5ls/Makefile + tools/h5copy/Makefile + tools/h5copy/testh5copy.sh + tools/lib/Makefile + tools/misc/Makefile + tools/misc/h5cc + tools/misc/testh5mkgrp.sh + tools/misc/testh5repart.sh + tools/h5stat/testh5stat.sh + tools/h5stat/Makefile + tools/perform/Makefile + examples/Makefile + examples/run-c-ex.sh + examples/testh5cc.sh + c++/Makefile + c++/src/Makefile + c++/src/h5c++ + c++/test/Makefile + c++/test/H5srcdir_str.h + c++/examples/Makefile + c++/examples/run-c++-ex.sh + c++/examples/testh5c++.sh + fortran/Makefile + fortran/src/h5fc + fortran/src/Makefile + fortran/test/Makefile + fortran/testpar/Makefile + fortran/examples/Makefile + fortran/examples/run-fortran-ex.sh + fortran/examples/testh5fc.sh + hl/Makefile + hl/src/Makefile + hl/test/Makefile + hl/test/H5srcdir_str.h + hl/tools/Makefile + hl/tools/gif2h5/Makefile + hl/tools/gif2h5/h52giftest.sh + hl/examples/Makefile + hl/examples/run-hlc-ex.sh + hl/c++/Makefile + hl/c++/src/Makefile + hl/c++/test/Makefile + hl/c++/examples/Makefile + hl/c++/examples/run-hlc++-ex.sh + hl/fortran/Makefile + hl/fortran/src/Makefile + hl/fortran/test/Makefile + hl/fortran/examples/Makefile + hl/fortran/examples/run-hlfortran-ex.sh]) + +AC_OUTPUT + +chmod 755 tools/misc/h5cc + +if test "X$HDF_FORTRAN" = "Xyes"; then + chmod 755 fortran/src/h5fc +fi + +if test "X$HDF_CXX" = "Xyes"; then + chmod 755 c++/src/h5c++ +fi + +## We don't want inline defined for C++ compilers +## Don't worry about the C++ ifdef wrappers in the H5pubconf file, since +## 'H5_inline' isn't a C++ keyword. +cat >> src/H5config.h <<EOF + +#if defined(__cplusplus) && defined(inline) +#undef inline +#endif +EOF + +## show the configure settings +cat src/libhdf5.settings |