From: Guillem Jover <guillem@hadrons.org>
Date: Tue, 6 Aug 2019 21:11:50 +0000 (+0200)
Subject: build: Fix check for clock_gettime() within librt
X-Git-Tag: 0.10.0~29
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=73aea4f8083e8c35ce1123e36a9967ecd6a26c97;p=thirdparty%2Flibbsd.git

build: Fix check for clock_gettime() within librt

The check was always setting the libraries to link to include -lrt,
as the success case includes the builtin one. Handle the various
values.
---

diff --git a/configure.ac b/configure.ac
index 6b2bb6c..1654072 100644
--- a/configure.ac
+++ b/configure.ac
@@ -48,7 +48,11 @@ AS_CASE([$host_os],
   [*-gnu*], [
     # In old glibc versions (< 2.17) clock_gettime() is in librt.
     saved_LIBS="$LIBS"
-    AC_SEARCH_LIBS([clock_gettime], [rt], [CLOCK_GETTIME_LIBS="-lrt"])
+    AC_SEARCH_LIBS([clock_gettime], [rt], [
+      AS_IF([test "x$ac_cv_search_clock_gettime" != "xnone required"], [
+        CLOCK_GETTIME_LIBS="$ac_cv_search_clock_gettime"
+      ])
+    ])
     AC_SUBST([CLOCK_GETTIME_LIBS])
     LIBS="$saved_LIBS"
   ],