diff options
Diffstat (limited to 'm4/aclocal_cxx.m4')
| -rw-r--r-- | m4/aclocal_cxx.m4 | 74 |
1 files changed, 17 insertions, 57 deletions
diff --git a/m4/aclocal_cxx.m4 b/m4/aclocal_cxx.m4 index 922320c..29a0607 100644 --- a/m4/aclocal_cxx.m4 +++ b/m4/aclocal_cxx.m4 @@ -7,9 +7,9 @@ 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 COPYING file, which can be found at the root of the source code -dnl dnl distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. -dnl dnl If you do not have access to either file, you may request a copy from -dnl dnl help@hdfgroup.org +dnl distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. +dnl If you do not have access to either file, you may request a copy from +dnl help@hdfgroup.org dnl dnl ------------------------------------------------------------------------- dnl ------------------------------------------------------------------------- @@ -24,14 +24,11 @@ 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> + TEST_SRC="`(echo \"#define OLD_HEADER_FILENAME 1\"; cat $srcdir/config/cmake_ext_mod/HDFCXXTests.cpp)`" -int main(void) { return 0; } - ])], + AC_LINK_IFELSE([AC_LANG_SOURCE([$TEST_SRC])], [AC_MSG_RESULT([no])], [AC_MSG_RESULT([yes]) CXXFLAGS="${CXXFLAGS} -DOLD_HEADER_FILENAME" @@ -39,80 +36,43 @@ int main(void) { return 0; } ]) 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; -} + TEST_SRC="`(echo \"#define HDF_NO_NAMESPACE 1\"; cat $srcdir/config/cmake_ext_mod/HDFCXXTests.cpp)`" -int main(void) { - using namespace H5; - fnord = 37; - return 0; -} - ])], [AC_MSG_RESULT([yes])], + AC_LINK_IFELSE([AC_LANG_SOURCE([$TEST_SRC])], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]) - CXXFLAGS="${CXXFLAGS} -DH5_NO_NAMESPACE" - AM_CXXFLAGS="${AM_CXXFLAGS} -DH5_NO_NAMESPACE"]) + CXXFLAGS="${CXXFLAGS} -DHDF_NO_NAMESPACE" + AM_CXXFLAGS="${AM_CXXFLAGS} -DHDF_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; + TEST_SRC="`(echo \"#define HDF_NO_STD 1\"; cat $srcdir/config/cmake_ext_mod/HDFCXXTests.cpp)`" -int main(void) { - string myString("testing namespace std"); - return 0; -} - ])], [AC_MSG_RESULT([yes])], + AC_LINK_IFELSE([AC_LANG_SOURCE([$TEST_SRC])], [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]) + TEST_SRC="`(echo \"#define CXX_HAVE_OFFSETOF 1\"; cat $srcdir/config/cmake_ext_mod/HDFCXXTests.cpp)`" + + AC_LINK_IFELSE([AC_LANG_SOURCE([$TEST_SRC])],[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])], + TEST_SRC="`(echo \"#define NO_STATIC_CAST 1\"; cat $srcdir/config/cmake_ext_mod/HDFCXXTests.cpp)`" + + AC_LINK_IFELSE([AC_LANG_SOURCE([$TEST_SRC])], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]) CXXFLAGS="${CXXFLAGS} -DNO_STATIC_CAST" AM_CXXFLAGS="${AM_CXXFLAGS} -DNO_STATIC_CAST"]) |