From 53c872512f27bfa786f713fdf858724d6a32feeb Mon Sep 17 00:00:00 2001
From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Sat, 11 Jun 2005 05:29:45 +0000
Subject: [PATCH] Make sure librrd_th properly depends on libpthread. -- Peter
 Breitenlohner

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2/program@625 a5681a0c-68f1-0310-ab6d-d61299d08faa
---
 acinclude.m4 | 6 ++++++
 configure.ac | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/acinclude.m4 b/acinclude.m4
index 3cff282..9e02d6d 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -289,6 +289,12 @@ if test "x$acx_pthread_ok" = xyes; then
         case "${host_cpu}-${host_os}" in
             *-aix* | *-freebsd* | *-darwin*) x_rflag="-D_THREAD_SAFE";;
             *solaris* | *-osf* | *-hpux*) x_rflag="-D_REENTRANT";;
+            *-linux*)
+            if test x"$PTHREAD_CFLAGS" = "x-pthread"; then
+                # For Linux/gcc "-pthread" implies "-lpthread". We need, however, to make this explicit
+                # in PTHREAD_LIBS such that a shared library to be built properly depends on libpthread.
+                PTHREAD_LIBS="-lpthread $PTHREAD_LIBS"
+            fi;;
         esac
         AC_MSG_RESULT(${x_rflag})
         if test "x$x_rflag" != xno; then
diff --git a/configure.ac b/configure.ac
index bf2ae7e..3ebfa15 100644
--- a/configure.ac
+++ b/configure.ac
@@ -265,7 +265,7 @@ AC_LINK_IFELSE(
                 [[#include <time.h>]],
                 [[ctime_r(NULL,NULL)]]
     	                 ),
-          [AC_MSG_RESULT(yes)],
+          [AC_MSG_RESULT(no)],
           [AC_MSG_ERROR([Can't figure how to compile ctime_r])]
       )
     ]  
-- 
2.11.0