[FFmpeg-devel] [PATCH 3.4] configure: add LIBDRM to Libs.private instead of Libs

[Giulio Benetti]

Currently LIBDRM is appended to Libs: in libavutil.pc. This causes
every program linking with avutil to link with -ldrm in both shared and
static linking cases. In shared linking case it makes no sense, since
-ldrm is a dependency of libavutil and is transparent while linking with
libavutil

- Add privatelibs_avutil variable for explicit private libraries to be
  appended to Libs.private:
- Add $LIBDRM to privatelibs_avutil.

Signed-off-by: Giulio Benetti <giulio.benetti at micronovasrl.com>
---
 configure                     | 3 ++-
 ffbuild/pkgconfig_generate.sh | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 9fe7760822..0996d8a85d 100755
--- a/configure
+++ b/configure
@@ -7096,7 +7096,8 @@ source_path=${source_path}
 LIBPREF=${LIBPREF}
 LIBSUF=${LIBSUF}
 
-extralibs_avutil="$LIBRT $LIBDRM $LIBM"
+extralibs_avutil="$LIBRT $LIBM"
+privatelibs_avutil="$LIBDRM"
 extralibs_avcodec="$extralibs"
 extralibs_avformat="$extralibs"
 extralibs_avdevice="$extralibs"
diff --git a/ffbuild/pkgconfig_generate.sh b/ffbuild/pkgconfig_generate.sh
index e5de6716d2..b86486a107 100755
--- a/ffbuild/pkgconfig_generate.sh
+++ b/ffbuild/pkgconfig_generate.sh
@@ -13,6 +13,7 @@ name=lib${shortname}
 fullname=${name}${build_suffix}
 comment=$2
 libs=$(eval echo \$extralibs_${shortname})
+privatelibs=$(eval echo \$privatelibs_${shortname})
 deps=$(eval echo \$${shortname}_deps)
 
 for dep in $deps; do
@@ -39,7 +40,7 @@ Requires: $($shared || echo $requires)
 Requires.private: $($shared && echo $requires)
 Conflicts:
 Libs: -L\${libdir} $rpath -l${fullname#lib} $($shared || echo $libs)
-Libs.private: $($shared && echo $libs)
+Libs.private: $($shared && echo $libs) ${privatelibs}
 Cflags: -I\${includedir}
 EOF
 
-- 
2.17.1