diff options
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 e998471c446..0a669c9a7fa 100644 --- a/libstdc++-v3/acinclude.m4 +++ b/libstdc++-v3/acinclude.m4 @@ -1018,7 +1018,15 @@ AC_DEFUN([GLIBCXX_CHECK_CLOCK_GETTIME], [ AC_LANG_CPLUSPLUS ac_save_CXXFLAGS="$CXXFLAGS" CXXFLAGS="$CXXFLAGS -fno-exceptions" - + ac_save_LIBS="$LIBS" + + AC_SEARCH_LIBS(clock_gettime, [posix4]) + + # Link to -lposix4. + case "$ac_cv_search_clock_gettime" in + -lposix4*) GLIBCXX_LIBS=$ac_cv_search_clock_gettime + esac + AC_CHECK_HEADERS(unistd.h, ac_has_unistd_h=yes, ac_has_unistd_h=no) ac_has_clock_monotonic=no; @@ -1055,13 +1063,16 @@ AC_DEFUN([GLIBCXX_CHECK_CLOCK_GETTIME], [ AC_DEFINE(_GLIBCXX_USE_CLOCK_MONOTONIC, 1, [ Defined if clock_gettime has monotonic clock support. ]) fi - + if test x"$ac_has_clock_realtime" = x"yes"; then AC_DEFINE(_GLIBCXX_USE_CLOCK_REALTIME, 1, [ Defined if clock_gettime has realtime clock support. ]) fi - + + AC_SUBST(GLIBCXX_LIBS) + CXXFLAGS="$ac_save_CXXFLAGS" + LIBS="$ac_save_LIBS" AC_LANG_RESTORE ]) |