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author | Vailin Choi <vchoi@hdfgroup.org> | 2015-03-04 21:03:12 (GMT) |
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committer | Vailin Choi <vchoi@hdfgroup.org> | 2015-03-04 21:03:12 (GMT) |
commit | 3a1c1caa0ec4a27cd517d7f90c162df5168a8dec (patch) | |
tree | cf912ab74767ab1db2ddfdb8eb6badc28b652631 /m4/aclocal_cxx.m4 | |
parent | e5e96cf1fd9462f0f1dc4c690555306b752a6637 (diff) | |
download | hdf5-3a1c1caa0ec4a27cd517d7f90c162df5168a8dec.zip hdf5-3a1c1caa0ec4a27cd517d7f90c162df5168a8dec.tar.gz hdf5-3a1c1caa0ec4a27cd517d7f90c162df5168a8dec.tar.bz2 |
[svn-r26362] Bring revisions #26109 - 26188 from trunk to revise_chunks.
h5committested.
Diffstat (limited to 'm4/aclocal_cxx.m4')
-rw-r--r-- | m4/aclocal_cxx.m4 | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/m4/aclocal_cxx.m4 b/m4/aclocal_cxx.m4 new file mode 100644 index 0000000..b44ae82 --- /dev/null +++ b/m4/aclocal_cxx.m4 @@ -0,0 +1,121 @@ +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 C++ +dnl ********************************* +dnl +dnl Special characteristics that have no autoconf counterpart but that +dnl we need as part of the C++ support. To distinquish these, they +dnl have a [PAC] prefix. + +dnl Checking if C++ needs old style header files in includes + +AC_DEFUN([PAC_PROG_CXX_HEADERS],[ + AC_MSG_CHECKING([if $CXX needs old style header files in includes]) + AC_LINK_IFELSE([AC_LANG_SOURCE([ +#include <iostream> + +int main(void) { return 0; } + ])], + [AC_MSG_RESULT([no])], + [AC_MSG_RESULT([yes]) + CXXFLAGS="${CXXFLAGS} -DOLD_HEADER_FILENAME" + AM_CXXFLAGS="${AM_CXXFLAGS} -DOLD_HEADER_FILENAME"]) +]) + +dnl Checking if ++ can handle namespaces + +AC_DEFUN([PAC_PROG_CXX_NAMESPACE],[ + AC_MSG_CHECKING([if $CXX can handle namespaces]) + AC_LINK_IFELSE([AC_LANG_SOURCE([ +namespace H5 { +int fnord; +} + +int main(void) { + using namespace H5; + fnord = 37; + return 0; +} + ])], [AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no]) + CXXFLAGS="${CXXFLAGS} -DH5_NO_NAMESPACE" + AM_CXXFLAGS="${AM_CXXFLAGS} -DH5_NO_NAMESPACE"]) +]) + +dnl Checking if C++ supports std + +AC_DEFUN([PAC_PROG_CXX_STD],[ + AC_MSG_CHECKING([if $CXX supports std]) + AC_LINK_IFELSE([AC_LANG_SOURCE([ +#include <string> + +using namespace std; + +int main(void) { + string myString("testing namespace std"); + return 0; +} + ])], [AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no]) + CXXFLAGS="${CXXFLAGS} -DH5_NO_STD" + AM_CXXFLAGS="${AM_CXXFLAGS} -DH5_NO_STD"]) +]) + +dnl Checking if C++ has offsetof extension + +AC_DEFUN([PAC_PROG_CXX_OFFSETOF],[ + AC_MSG_CHECKING([if $CXX has offsetof extension]) + AC_LINK_IFELSE([AC_LANG_PROGRAM([ + #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_MSG_RESULT([yes]) + AC_DEFINE([CXX_HAVE_OFFSETOF], [1], [Define if C++ compiler recognizes offsetof])], + AC_MSG_RESULT([no])) +]) + +dnl Checking if C++ can handle static cast + +AC_DEFUN([PAC_PROG_CXX_STATIC_CAST],[ + AC_MSG_CHECKING([if $CXX can handle static cast]) + AC_LINK_IFELSE([AC_LANG_SOURCE([ +int main(void) { + float test_float; + int test_int; + test_float = 37.0; + test_int = static_cast <int> (test_float); + return 0; +} + ])], [AC_MSG_RESULT([yes])], + [AC_MSG_RESULT([no]) + CXXFLAGS="${CXXFLAGS} -DNO_STATIC_CAST" + AM_CXXFLAGS="${AM_CXXFLAGS} -DNO_STATIC_CAST"]) +]) |