$OpenBSD: patch-configure,v 1.2 2010/07/21 14:07:43 landry Exp $

use '-pthread' instead of '-lpthread'

--- configure.orig	Sun Nov  8 02:41:02 2009
+++ configure	Wed Jul 21 16:06:24 2010
@@ -6733,12 +6733,12 @@ return pthread_create ();
   return 0;
 }
 _ACEOF
-for ac_lib in '' pthread; do
+for ac_lib in pthread; do
   if test -z "$ac_lib"; then
     ac_res="none required"
   else
-    ac_res=-l$ac_lib
-    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+    ac_res=-$ac_lib
+    LIBS="-$ac_lib  $ac_func_search_save_LIBS"
   fi
   rm -f conftest.$ac_objext conftest$ac_exeext
 if { (ac_try="$ac_link"
@@ -7819,7 +7819,7 @@ _ACEOF
 elif test "$GCC" = "yes"
 then
   GCC_VERSION=`$CC -dumpversion`
-  CFLAGS="$CFLAGS -Wall -Werror -pedantic -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls"
+  CFLAGS="$CFLAGS -Wall -Werror -pedantic -Wmissing-prototypes -Wmissing-declarations"
   case $GCC_VERSION in
     4.4.*)
     CFLAGS="$CFLAGS -fno-strict-aliasing"
