configure.ac: Do not check for rt on Mac OS X.
There is no rt library on Mac OS X.
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58872
Acked-by: Matt Turner <mattst88@gmail.com>
diff --git a/configure.ac b/configure.ac
index 6735fdc..d08bc27 100644
--- a/configure.ac
+++ b/configure.ac
@@ -499,10 +499,16 @@
[DEFINES="$DEFINES -DHAVE_DLOPEN"; DLOPEN_LIBS="-ldl"])])
AC_SUBST([DLOPEN_LIBS])
-AC_CHECK_FUNCS([clock_gettime], [CLOCK_LIB=],
- [AC_CHECK_LIB([rt], [clock_gettime], [CLOCK_LIB=-lrt],
- [AC_MSG_ERROR([Couldn't find clock_gettime])])])
-AC_SUBST([CLOCK_LIB])
+case "$host_os" in
+darwin*)
+ ;;
+*)
+ AC_CHECK_FUNCS([clock_gettime], [CLOCK_LIB=],
+ [AC_CHECK_LIB([rt], [clock_gettime], [CLOCK_LIB=-lrt],
+ [AC_MSG_ERROR([Couldn't find clock_gettime])])])
+ AC_SUBST([CLOCK_LIB])
+ ;;
+esac
dnl See if posix_memalign is available
AC_CHECK_FUNC([posix_memalign], [DEFINES="$DEFINES -DHAVE_POSIX_MEMALIGN"])