+clock_gettime_link=
+# At least for glibc, clock_gettime is in librt. But don't
+# pull that in if it still doesn't give us the function we want. This
+# test is copied from libgomp, and modified to not link in -lrt as
+# we're using this for test timing only.
+if test "$ac_cv_func_clock_gettime" = no; then
+ AC_CHECK_LIB(rt, clock_gettime,
+ [CLOCK_GETTIME_LINK=-lrt
+ AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
+ [Define to 1 if you have the `clock_gettime' function.])])
+fi
+AC_SUBST(CLOCK_GETTIME_LINK)
+