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| author | Yang Tse <yangsita@gmail.com> | 2008-05-10 15:46:38 +0000 |
|---|---|---|
| committer | Yang Tse <yangsita@gmail.com> | 2008-05-10 15:46:38 +0000 |
| commit | 22e6a8199f5364c2a94a3e70729707ce9e5f3039 (patch) | |
| tree | 2ae0d7fadc59cd7eb356cbcb7c3a519f4b82b985 /acinclude.m4 | |
| parent | 0848b4fdaa130054c981194afa2ff0cd136d2590 (diff) | |
| download | c-ares-22e6a8199f5364c2a94a3e70729707ce9e5f3039.tar.gz c-ares-22e6a8199f5364c2a94a3e70729707ce9e5f3039.tar.bz2 c-ares-22e6a8199f5364c2a94a3e70729707ce9e5f3039.zip | |
Add library checking for clock_gettime() support
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 index 5445592..2a7bc02 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -1283,6 +1283,81 @@ AC_DEFUN([TYPE_IN_ADDR_T], ]) dnl AC_CHECK_TYPE ]) dnl AC_DEFUN +dnl CURL_CHECK_LIBS_CLOCK_GETTIME +dnl ------------------------------------------------- +dnl Check for libraries needed for clock_gettime, +dnl and prepended to LIBS any needed libraries. + +AC_DEFUN([CURL_CHECK_LIBS_CLOCK_GETTIME], [ + AC_REQUIRE([AC_HEADER_TIME])dnl + AC_CHECK_HEADERS(sys/types.h sys/time.h time.h) + # + AC_MSG_CHECKING([for clock_gettime in libraries]) + # + curl_cv_save_LIBS="$LIBS" + curl_cv_gclk_LIBS="unknown" + # + for x_xlibs in '' '-lrt' '-lposix4' ; do + if test -z "$x_xlibs"; then + LIBS="$curl_cv_save_LIBS" + else + LIBS="$x_xlibs $curl_cv_save_LIBS" + fi + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([ +#undef inline +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#ifdef TIME_WITH_SYS_TIME +#include <time.h> +#endif +#else +#ifdef HAVE_TIME_H +#include <time.h> +#endif +#endif + ],[ + (void)clock_gettime(0, 0); + ]) + ],[ + curl_cv_gclk_LIBS="$x_xlibs" + break + ]) + done + # + LIBS="$curl_cv_save_LIBS" + # + case X-"$curl_cv_gclk_LIBS" in + X-unknown) + AC_MSG_RESULT([cannot find clock_gettime]) + ac_cv_func_clock_gettime="no" + ;; + X-) + AC_MSG_RESULT([no additional lib required]) + ac_cv_func_clock_gettime="yes" + ;; + *) + if test -z "$curl_cv_save_LIBS"; then + LIBS="$curl_cv_gclk_LIBS" + else + LIBS="$curl_cv_gclk_LIBS $curl_cv_save_LIBS" + fi + AC_MSG_RESULT([$curl_cv_gclk_LIBS]) + ac_cv_func_clock_gettime="yes" + ;; + esac + # + case "$ac_cv_func_clock_gettime" in + yes) + AC_DEFINE_UNQUOTED(HAVE_CLOCK_GETTIME, 1, + [Define to 1 if you have the clock_gettime function.]) + ;; + esac + # +]) dnl AC_DEFUN dnl ********************************************************************** dnl CURL_DETECT_ICC ([ACTION-IF-YES]) |