Add a check to configure.in to detect if the target system has a function clock_gettime(). On my OS X and Linux systems, the check seems to work.
Signed-off-by: J. Tang <[email protected]> --- configure.in | 19 +++++++++++++++---- 1 files changed, 15 insertions(+), 4 deletions(-) diff --git a/configure.in b/configure.in index a0b1f40..4973a04 100644 --- a/configure.in +++ b/configure.in @@ -329,11 +329,22 @@ AC_SEARCH_LIBS(socket, socket, [SOCKLIB=$LIBS], ) AC_SUBST(SOCKLIB) +try_link_clock="yes"; +AC_MSG_CHECKING([for POSIX real-time clock]) +AC_TRY_COMPILE( + [#include <time.h>], + [clock_gettime(CLOCK_THREAD_CPUTIME_ID, 0);], + [AC_MSG_RESULT([yes]); AC_DEFINE(HAVE_CLOCK_GETTIME)], + [AC_MSG_RESULT([no]); try_link_clock="no";] +) + dnl FreeBSD has clock_gettime in libc, Linux needs librt -LIBS="" -AC_SEARCH_LIBS(clock_gettime, rt, [RTLIB=$LIBS]) -AC_CHECK_FUNCS(clock_gettime) -AC_SUBST(RTLIB) +if test $try_link_clock = yes; then + LIBS="" + AC_SEARCH_LIBS(clock_gettime, rt, [RTLIB=$LIBS]) + AC_CHECK_FUNCS(clock_gettime) + AC_SUBST(RTLIB) +fi dnl Android has pthread_* functions in bionic (libc), others need libpthread LIBS="" -- 1.7.3.2 _______________________________________________ Dev mailing list [email protected] https://lists.strongswan.org/mailman/listinfo/dev
