* configure.in (LIB_PTHREAD): Prepend -lpthread to LIBS (Bug#9852)

if the library is found.  Otherwise, later configure-time tests,
such as the test for pthread_sigmask, generate the wrong results
on some platforms.  Problem reported for FreeBSD by Nali Toja.

2 files changed, 9 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 9b9a7176b05..ade71ae09a7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2011-10-24  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * configure.in (LIB_PTHREAD): Prepend -lpthread to LIBS (Bug#9852)
+        if the library is found.  Otherwise, later configure-time tests,
+        such as the test for pthread_sigmask, generate the wrong results
+        on some platforms.  Problem reported for FreeBSD by Nali Toja.
+
 2011-10-20  Paul Eggert  <eggert@cs.ucla.edu>
 
         Time zone name fixes for non-ASCII locales (Bug#641, Bug#9794)
diff --git a/configure.in b/configure.in
index 5b32e10853f..3040c13e683 100644
--- a/configure.in
+++ b/configure.in
@@ -1723,7 +1723,8 @@ fi
 if test "$HAVE_PTHREAD" = yes; then
   case "${canonical}" in
     *-hpux*) ;;
-    *) LIB_PTHREAD="-lpthread" ;;
+    *) LIB_PTHREAD="-lpthread"
+       LIBS="$LIB_PTHREAD $LIBS" ;;
   esac
   AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
 fi