From 5bc8d4c3fe5760c39318f064d0fb4ab69aa2dfd2 Mon Sep 17 00:00:00 2001
From: Amos Jeffries <squid3@treenet.co.nz>
Date: Fri, 19 Mar 2010 23:17:55 +1300
Subject: [PATCH] Bug 2873: undefined symbol rint

Detect math library properly based on rint synbol we need.
---
 configure.in | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/configure.in b/configure.in
index cc906a6862..c3f149859b 100644
--- a/configure.in
+++ b/configure.in
@@ -2641,7 +2641,10 @@ mingw|mingw32)
 	AC_MSG_NOTICE([Use MSVCRT for math functions.])
 	;;
 	*)
-	AC_CHECK_LIB(m, main)
+	dnl rint() is only used in old C code for now.
+	AC_LANG_PUSH([C])
+	AC_SEARCH_LIBS([rint],[m])
+	AC_LANG_POP([C])
 	;;
 esac
 
-- 
2.47.3