From d54ff264f78f5b237c4cc514a99596d4cabfb0e1 Mon Sep 17 00:00:00 2001
From: caro <caro@7cbeb6ba-43b4-40fd-8cce-4c39aea84d33>
Date: Thu, 10 Nov 2011 18:14:48 +0000
Subject: [PATCH] Evas: use -pthread instead of -lpthread

git-svn-id: http://svn.enlightenment.org/svn/e/trunk/evas@65030 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33
---
 m4/evas_check_engine.m4 | 66 ++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 60 insertions(+), 6 deletions(-)

diff --git a/m4/evas_check_engine.m4 b/m4/evas_check_engine.m4
index a3f3b21..8c9fb59 100644
--- a/m4/evas_check_engine.m4
+++ b/m4/evas_check_engine.m4
@@ -91,9 +91,27 @@ AC_CHECK_HEADER([GL/gl.h],
 
 gl_pt_lib="";
 have_gl_pt="no"
-AC_CHECK_LIB([pthread], [pthread_create], [have_gl_pt="yes"], [have_gl_pt="no"])
+
+AC_MSG_CHECKING([whether pthread_create() is supported])
+CFLAGS_save="${CFLAGS}"
+CFLAGS="${CFLAGS} -pthread"
+LIBS_save="${LIBS}"
+LIBS="${LIBS} -pthread"
+AC_LINK_IFELSE(
+  [AC_LANG_PROGRAM([[
+#include <pthread.h>
+                   ]],
+                   [[
+pthread_create(NULL, NULL, NULL, NULL);
+                   ]])],
+   [have_gl_pt="yes"],
+   [have_gl_pt="no"])
+CFLAGS=${CFLAGS_save}
+LIBS=${LIBS_save}
+AC_MSG_RESULT([${have_gl_pt}])
+
 if test "x$have_gl_pt" = "xyes" ; then
-   gl_pt_lib=" -lpthread"
+   gl_pt_lib=" -pthread"
 fi
 
 if test "x${have_dep}" = "xyes" ; then
@@ -236,9 +254,27 @@ AC_CHECK_HEADER([GL/gl.h],
 
 gl_pt_lib="";
 have_gl_pt="no"
-AC_CHECK_LIB([pthread], [pthread_create], [have_gl_pt="yes"], [have_gl_pt="no"])
+
+AC_MSG_CHECKING([whether pthread_create() is supported])
+CFLAGS_save="${CFLAGS}"
+CFLAGS="${CFLAGS} -pthread"
+LIBS_save="${LIBS}"
+LIBS="${LIBS} -pthread"
+AC_LINK_IFELSE(
+  [AC_LANG_PROGRAM([[
+#include <pthread.h>
+                   ]],
+                   [[
+pthread_create(NULL, NULL, NULL, NULL);
+                   ]])],
+   [have_gl_pt="yes"],
+   [have_gl_pt="no"])
+CFLAGS=${CFLAGS_save}
+LIBS=${LIBS_save}
+AC_MSG_RESULT([${have_gl_pt}])
+
 if test "x$have_gl_pt" = "xyes" ; then
-   gl_pt_lib=" -lpthread"
+   gl_pt_lib=" -pthread"
 fi
 
 if test "x${have_dep}" = "xyes" ; then
@@ -555,9 +591,27 @@ PKG_CHECK_MODULES([SDL],
 
 gl_pt_lib="";
 have_gl_pt="no"
-AC_CHECK_LIB([pthread], [pthread_create], [have_gl_pt="yes"], [have_gl_pt="no"])
+
+AC_MSG_CHECKING([whether pthread_create() is supported])
+CFLAGS_save="${CFLAGS}"
+CFLAGS="${CFLAGS} -pthread"
+LIBS_save="${LIBS}"
+LIBS="${LIBS} -pthread"
+AC_LINK_IFELSE(
+  [AC_LANG_PROGRAM([[
+#include <pthread.h>
+                   ]],
+                   [[
+pthread_create(NULL, NULL, NULL, NULL);
+                   ]])],
+   [have_gl_pt="yes"],
+   [have_gl_pt="no"])
+CFLAGS=${CFLAGS_save}
+LIBS=${LIBS_save}
+AC_MSG_RESULT([${have_gl_pt}])
+
 if test "x$have_gl_pt" = "xyes" ; then
-   gl_pt_lib=" -lpthread"
+   gl_pt_lib=" -pthread"
 fi
 
 AC_CHECK_HEADER([GL/gl.h],
-- 
2.7.4