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Diffstat (limited to 'm4/aclocal_fc.m4')
| -rw-r--r-- | m4/aclocal_fc.m4 | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/m4/aclocal_fc.m4 b/m4/aclocal_fc.m4 new file mode 100644 index 0000000..ec638a3 --- /dev/null +++ b/m4/aclocal_fc.m4 @@ -0,0 +1,242 @@ +dnl ------------------------------------------------------------------------- +dnl ------------------------------------------------------------------------- +dnl +dnl Copyright by the Board of Trustees of the University of Illinois. +dnl All rights reserved. +dnl +dnl This file is part of HDF5. The full HDF5 copyright notice, including +dnl terms governing use, modification, and redistribution, is contained in +dnl the files COPYING and Copyright.html. COPYING can be found at the root +dnl of the source code distribution tree; Copyright.html can be found at the +dnl root level of an installed copy of the electronic HDF5 document set and +dnl is linked from the top-level documents page. It can also be found at +dnl http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have +dnl access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. +dnl +dnl ------------------------------------------------------------------------- +dnl ------------------------------------------------------------------------- + +dnl ********************************* +dnl PURPOSE +dnl Contains Macros for HDF5 Fortran +dnl ********************************* +dnl +dnl PAC_FC_SEARCH_LIST - expands to a whitespace separated list of modern +dnl fortran compilers for use with AC_PROG_FC that is more suitable for HPC +dnl software packages +AC_DEFUN([PAC_FC_SEARCH_LIST], + [gfortran ifort pgf90 pathf90 pathf95 xlf90 xlf95 xlf2003 f90 epcf90 f95 fort lf95 g95 ifc efc gfc]) +dnl +dnl PAC_PROG_FC([COMPILERS]) +dnl +dnl COMPILERS is a space separated list of Fortran compilers to search for. +dnl +dnl Compilers are ordered by +dnl 1. F90, F95, F2003 +dnl 2. Good/tested native compilers, bad/untested native compilers +dnl 3. Wrappers around f2c go last. +dnl +dnl frt is the Fujitsu Fortran compiler. +dnl pgf90 are the Portland Group F90 compilers. +dnl xlf/xlf90/xlf95/xlf2003 are IBM (AIX) F90/F95/F2003 compilers. +dnl lf95 is the Lahey-Fujitsu compiler. +dnl fl32 is the Microsoft Fortran "PowerStation" compiler. +dnl epcf90 is the "Edinburgh Portable Compiler" F90. +dnl fort is the Compaq Fortran 90 (now 95) compiler for Tru64 and Linux/Alpha. +dnl pathf90 is the Pathscale Fortran 90 compiler +dnl ifort is another name for the Intel f90 compiler +dnl efc - An older Intel compiler (?) +dnl ifc - An older Intel compiler +dnl fc - A compiler on some unknown system. This has been removed because +dnl it may also be the name of a command for something other than +dnl the Fortran compiler (e.g., fc=file system check!) +dnl gfortran - The GNU Fortran compiler (not the same as g95) +dnl gfc - An alias for gfortran recommended in cygwin installations +dnl NOTE: this macro suffers from a basically intractable "expanded before it +dnl was required" problem when libtool is also used +dnl [1] MPICH.org +dnl + +dnl See if the fortran compiler supports the intrinsic function "SIZEOF" + +AC_DEFUN([PAC_PROG_FC_SIZEOF],[ + AC_MSG_CHECKING([if Fortran compiler supports intrinsic SIZEOF]) + AC_COMPILE_IFELSE([AC_LANG_SOURCE([ + PROGRAM main + i = sizeof(x) + END PROGRAM + ])],[AC_MSG_RESULT([yes]) + HAVE_SIZEOF_FORTRAN="yes"], + [AC_MSG_RESULT([no])]) +]) + +dnl See if the fortran compiler supports the intrinsic function "C_SIZEOF" + +AC_DEFUN([PAC_PROG_FC_C_SIZEOF],[ + AC_MSG_CHECKING([if Fortran compiler supports intrinsic C_SIZEOF]) + AC_COMPILE_IFELSE([AC_LANG_SOURCE([ + 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_FORTRAN="yes"], + [AC_MSG_RESULT([no])]) +]) + +dnl See if the fortran compiler supports the intrinsic function "STORAGE_SIZE" + +AC_DEFUN([PAC_PROG_FC_STORAGE_SIZE],[ + AC_MSG_CHECKING([if Fortran compiler supports intrinsic STORAGE_SIZE]) + AC_COMPILE_IFELSE([AC_LANG_SOURCE([ + PROGRAM main + INTEGER :: a + INTEGER :: result + result = STORAGE_SIZE(a) + END PROGRAM + ])], [AC_MSG_RESULT([yes]) + HAVE_STORAGE_SIZE_FORTRAN="yes"], + [AC_MSG_RESULT([no])]) + +]) + +dnl Check to see if -r8 was specified to determine if we need to +dnl compile the DOUBLE PRECISION interfaces. + +AC_DEFUN([PAC_PROG_FC_DEFAULT_REALisDBLE],[ + AC_MSG_CHECKING([if Fortran default REAL is DOUBLE PRECISION]) + + AC_COMPILE_IFELSE([AC_LANG_SOURCE([ + 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"]) +]) + +dnl Checking if the compiler supports the required Fortran 2003 features and +dnl disable Fortran 2003 if it does not. + +AC_DEFUN([PAC_PROG_FC_HAVE_F2003_REQUIREMENTS],[ + 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])]) +]) + +dnl ------------------------------------------------------------------------- +dnl AC_F9X_MODS() +dnl +dnl Check how F9X handles modules. This macro also checks which +dnl command-line option to use to include the module once it's built. +dnl +AC_DEFUN([AC_F9X_MODS], +[AC_MSG_CHECKING(what $FC does with modules) +AC_LANG_PUSH(Fortran) + +test -d conftestdir || mkdir conftestdir +cd conftestdir +rm -rf * + +cat >conftest.$ac_ext <<EOF + module module + integer foo + end module module +EOF + +eval $ac_compile +modfiles="" +F9XMODEXT="" + +for f in conftest.o module.mod MODULE.mod module.M MODULE.M; do + if test -f "$f" ; then + modfiles="$f" + + case "$f" in + *.o) F9XMODEXT="o" ;; + *.mod) F9XMODEXT="mod" ;; + *.M) F9XMODEXT="M" ;; + esac + fi +done + +echo $modfiles 6>&1 +if test "$modfiles" = file.o; then + echo $ac_n "checking whether $FC -em is saner""... $ac_c" 1>&6 + OLD_FCFLAGS=$FCFLAGS + FCFLAGS="$FCFLAGS -em" + eval $ac_compile + modfiles="" + for f in file.o module.mod MODULE.mod module.M MODULE.M; do + test -f $f && modfiles="$f" + done + if test "$modfiles" = "file.o"; then + FCFLAGS=$OLD_FCFLAGS + echo no 6>&1 + else + echo yes 6>&1 + fi +fi +cd .. + +AC_MSG_CHECKING(how $FC finds modules) + +for flag in "-I" "-M" "-p"; do + cat >conftest.$ac_ext <<EOF + program conftest + use module + end program conftest +EOF + + ac_compile='${FC-f90} $FCFLAGS ${flag}conftestdir -c conftest.$ac_ext 1>&AS_MESSAGE_LOG_FD' + + if AC_TRY_EVAL(ac_compile); then + F9XMODFLAG=$flag + break + fi +done + +if test -n "$F9XMODFLAG"; then + echo $F9XMODFLAG 1>&6 + FCFLAGS="$F9XMODFLAG. $FCFLAGS" +else + echo unknown 1>&6 +fi +AC_SUBST(F9XMODFLAG) +AC_SUBST(F9XMODEXT) +rm -rf conftest* +AC_LANG_POP(Fortran) +]) + |