[FFmpeg-cvslog] configure: Add missing libm library dependencies to .pc files.

[Reinhard Tartler]

ffmpeg | branch: master | Reinhard Tartler <siretart at tauware.de> | Sun Apr 24 17:24:24 2011 +0200| [50f7c296469e9675e07fd1afa37b5e430b876f1c] | committer: Diego Biurrun

configure: Add missing libm library dependencies to .pc files.

This unbreaks static compilation using pkg-config on systems in need of -lm.
Based on an mplayer2 patch by Uoti Urpala <uau at mplayer2.org>

Signed-off-by: Diego Biurrun <diego at biurrun.de>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=50f7c296469e9675e07fd1afa37b5e430b876f1c
---

 configure |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/configure b/configure
index 6dd00dc..f514503 100755
--- a/configure
+++ b/configure
@@ -2840,7 +2840,7 @@ for thread in $THREADS_LIST; do
     fi
 done
 
-check_lib math.h sin -lm
+check_lib math.h sin -lm && LIBM="-lm"
 enabled vaapi && require vaapi va/va.h vaInitialize -lva
 
 check_mathfunc exp2
@@ -3427,10 +3427,10 @@ Cflags: -I\${includedir}
 EOF
 }
 
-pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION"
-pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
+pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
+pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs $LIBM" "libavutil = $LIBAVUTIL_VERSION"
 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
 pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
-pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
+pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"