From e1ce8f9c41bd9273a283dd0826ef0898c2a63763 Mon Sep 17 00:00:00 2001
From: reimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sun, 8 Nov 2009 15:38:59 +0000
Subject: Add a check if compiler creates PIC code and if so add -DPIC to
 YASMFLAGS. Should make it possible to compile MPlayer as PIE on x86_64 e.g.
 on hardened Gentoo and probably OpenBSD, too.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29853 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 configure | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'configure')

diff --git a/configure b/configure
index 166127d934..c17ff27d0f 100755
--- a/configure
+++ b/configure
@@ -2576,6 +2576,20 @@ EOF
 cc_check && ebx_available=yes && def_ebx_available='#define HAVE_EBX_AVAILABLE 1'
 echores $ebx_available
 
+echocheck "PIC"
+pic=no
+cat > $TMPC << EOF
+int main(void) {
+// keep in sync with mangle.h and libavutil/internal.h
+#if !(defined(__PIC__) || defined(__pic__) || defined(PIC))
+#error PIC not enabled
+#endif
+    return 0;
+}
+EOF
+cc_check && pic=yes
+echores $pic
+
 echocheck "yasm"
 if test -z "$YASMFLAGS" ; then
   if darwin ; then
@@ -2588,6 +2602,7 @@ if test -z "$YASMFLAGS" ; then
   # currently tested for Linux x86, x86_64
   YASMFLAGS="-f $objformat"
   x86_64 && YASMFLAGS="$YASMFLAGS -DARCH_X86_64 -m amd64"
+  test "$pic" = "yes" && YASMFLAGS="$YASMFLAGS -DPIC"
   case "$objformat" in
     elf) test $_debug && YASMFLAGS="$YASMFLAGS -g dwarf2" ;;
     macho64)             YASMFLAGS="$YASMFLAGS -DPIC -DPREFIX" ;;
-- 
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