From: Matt Turner <mattst88@gmail.com>
Date: Thu, 27 Sep 2012 22:49:52 +0000 (-0700)
Subject: build: Set PTHREAD_LIBS for pkgconfig files if empty
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=dd4fde8f674f5e3efa19e929f97de4ecfd82391b;p=mesa.git

build: Set PTHREAD_LIBS for pkgconfig files if empty
---

diff --git a/configure.ac b/configure.ac
index 770df2f1a29..dc2720da088 100644
--- a/configure.ac
+++ b/configure.ac
@@ -509,6 +509,10 @@ AC_CHECK_DECLS([signbit],[],
 
 dnl Check for pthreads
 AX_PTHREAD
+dnl AX_PTHREADS leaves PTHREAD_LIBS empty for gcc and sets PTHREAD_CFLAGS
+dnl to -pthread, which causes problems if we need -lpthread to appear in
+dnl pkgconfig files.
+test -z "$PTHREAD_LIBS" && PTHREAD_LIBS="-lpthread"
 
 dnl SELinux awareness.
 AC_ARG_ENABLE([selinux],