[SCM] libav/experimental: Attempt to document the "enable pic" hackery for OpenBSD.

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit a7b9c8aefd52fdae8320b419e684415998b7c43a
Author: Reimar Döffinger <Reimar.Doeffinger at gmx.de>
Date:   Mon Nov 9 22:52:46 2009 +0000

    Attempt to document the "enable pic" hackery for OpenBSD.
    
    Originally committed as revision 20491 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/configure b/configure
index eb993d3..a1da72f 100755
--- a/configure
+++ b/configure
@@ -1916,6 +1916,10 @@ case $target_os in
         ;;
     openbsd)
         enable malloc_aligned
+        # on OpenBSD 4.5. the compiler does not use PIC unless explicitly using
+        # -fPIC. FFmpeg builds fine without PIC, however the generated executable
+        # will not do anything (simply quits with exit-code 1, no crash, no output).
+        # Thus explicitly enable PIC here.
         enable pic
         SHFLAGS='-shared'
         oss_indev_extralibs="-lossaudio"

-- 
Libav/FFmpeg packaging