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| author | redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-09-16 22:50:28 +0000 |
|---|---|---|
| committer | redi <redi@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-09-16 22:50:28 +0000 |
| commit | fc466aaf502c24648003a55c0f7a30ff56fdc420 (patch) | |
| tree | 3efd38e818c1d151333d9c0bfb7b3869ca9cec23 /libstdc++-v3/acinclude.m4 | |
| parent | 22c5bcc6d784aa4a4d392ce319ddee5e90d6be79 (diff) | |
| download | gcc-fc466aaf502c24648003a55c0f7a30ff56fdc420.tar.gz | |
Implement filesystem::canonical() without realpath
PR libstdc++/67173
* acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check _XOPEN_VERSION
and PATH_MAX for _GLIBCXX_USE_REALPATH.
* config.h.in: Regenerate.
* configure: Regenerate.
* src/filesystem/ops.cc: (canonical) [!_GLIBCXX_USE_REALPATH]: Add
alternative implementation.
* testsuite/experimental/filesystem/operations/canonical.cc: New.
* testsuite/experimental/filesystem/operations/exists.cc: Add more
tests.
* testsuite/experimental/filesystem/operations/absolute.cc: Add test
variables.
* testsuite/experimental/filesystem/operations/copy.cc: Likewise.
* testsuite/experimental/filesystem/operations/current_path.cc:
Likewise.
* testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
* testsuite/experimental/filesystem/operations/status.cc: Likewise.
* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@227836 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libstdc++-v3/acinclude.m4')
| -rw-r--r-- | libstdc++-v3/acinclude.m4 | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4 index 64c9b7e32cf..c133c25407b 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -3947,13 +3947,24 @@ dnl AC_MSG_CHECKING([for realpath]) AC_CACHE_VAL(glibcxx_cv_realpath, [dnl GCC_TRY_COMPILE_OR_LINK( - [#include <stdlib.h>], - [char *tmp = realpath((const char*)NULL, (char*)NULL);], + [ + #include <stdlib.h> + #include <unistd.h> + ], + [ + #if _XOPEN_VERSION < 500 + #error + #elif _XOPEN_VERSION >= 700 || defined(PATH_MAX) + char *tmp = realpath((const char*)NULL, (char*)NULL); + #else + #error + #endif + ], [glibcxx_cv_realpath=yes], [glibcxx_cv_realpath=no]) ]) if test $glibcxx_cv_realpath = yes; then - AC_DEFINE(_GLIBCXX_USE_REALPATH, 1, [Define if realpath is available in <stdlib.h>.]) + AC_DEFINE(_GLIBCXX_USE_REALPATH, 1, [Define if usable realpath is available in <stdlib.h>.]) fi AC_MSG_RESULT($glibcxx_cv_realpath) dnl |