From badc63464cbd64606c6dff9ea561a787d072fd5f Mon Sep 17 00:00:00 2001
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Wed, 7 Jan 2009 11:47:52 -0800
Subject: libdrm: add autoconf check for clock_gettime

Should be more portable this way.
---
 configure.ac | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index ccc58ef7..11d238cf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -62,6 +62,13 @@ AC_DEFUN([LIBDRM_CC_TRY_FLAG], [
   AC_MSG_RESULT([$libdrm_cc_flag])
 ])
 
+dnl We use clock_gettime to check for timeouts in drmWaitVBlank
+
+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])
+
 dnl Use lots of warning flags with with gcc and compatible compilers
 
 dnl Note: if you change the following variable, the cache is automatically
-- 
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