diff --git a/configure.ac.tpl b/configure.ac.tpl
index d02eb7a..3589101 100644
--- a/configure.ac.tpl
+++ b/configure.ac.tpl
@@ -16,7 +16,6 @@ case $target_os in
 	*linux*)
 		TARGET_OS=linux;
 		CFLAGS="$CFLAGS -D_BSD_SOURCE -D_POSIX_SOURCE -D_GNU_SOURCE"
-		AC_SUBST([PLATFORM_LDADD], ['-lrt'])
 		;;
 	*solaris*)
 		TARGET_OS=solaris;
@@ -33,6 +32,9 @@ AM_CONDITIONAL(TARGET_DARWIN, test x$TARGET_OS = xdarwin)
 AM_CONDITIONAL(TARGET_LINUX, test x$TARGET_OS = xlinux)
 AM_CONDITIONAL(TARGET_SOLARIS, test x$TARGET_OS = xsolaris)
 
+AC_CHECK_FUNC([clock_gettime],,
+	[AC_SEARCH_LIBS([clock_gettime],[rt posix4])])
+
 AC_PROG_CC
 AC_PROG_LIBTOOL
 AC_PROG_CC_STDC