main/ffmpeg: fix segfault due to symver beeing used

problem was that configure script only checked if symver was supported
by toolchain. Our toolchain supports it but uclibc's ld.so does not.

So we check if ld.so has dlvsym()

ref #664

2 files changed, 40 insertions, 4 deletions

diff --git a/main/ffmpeg/APKBUILD b/main/ffmpeg/APKBUILD
index 2315b24657..879919b55b 100644
--- a/main/ffmpeg/APKBUILD
+++ b/main/ffmpeg/APKBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=ffmpeg
 pkgver=0.6.3
-pkgrel=1
+pkgrel=2
 pkgdesc="Complete and free Internet live audio and video broadcasting solution for Linux/Unix"
 url="http://ffmpeg.org/"
 arch="all"
@@ -12,12 +12,17 @@ makedepends="lame-dev libvorbis-dev faad2-dev faac-dev xvidcore-dev zlib-dev
         libvpx-dev sdl-dev"
 depends=
 source="http://ffmpeg.org/releases/ffmpeg-$pkgver.tar.bz2
-        pic.patch"
+        pic.patch
+        configure-dlvsym.patch"
 
 _builddir="$srcdir"/$pkgname-$pkgver
 prepare() {
         cd "$_builddir"
-        patch -p1 -i "$srcdir"/pic.patch
+        for i in $source; do
+                case $i in
+                *.patch) msg $i; patch -p1 -i "$srcdir"/$i || return 1;;
+                esac
+        done
 }
 
 build() {
@@ -57,4 +62,5 @@ package() {
 #       strip --strip-debug "$pkgdir"/usr/lib/*.a || return 1
 }
 md5sums="cdf4ad9b2a4d195b5ca874494bc7b0b0  ffmpeg-0.6.3.tar.bz2
-d4870ae7350caed041d2b39e406a173b  pic.patch"
+d4870ae7350caed041d2b39e406a173b  pic.patch
+2cdc11a99bf97c63c7cca27b073cb47c  configure-dlvsym.patch"
diff --git a/main/ffmpeg/configure-dlvsym.patch b/main/ffmpeg/configure-dlvsym.patch
new file mode 100644
index 0000000000..b48a8e7883
--- /dev/null
+++ b/main/ffmpeg/configure-dlvsym.patch
@@ -0,0 +1,30 @@
+diff --git a/configure b/configure
+index c54706a..b5b3225 100755
+--- a/configure
++++ b/configure
+@@ -1053,6 +1053,7 @@ HAVE_LIST="
+     dev_video_bktr_ioctl_bt848_h
+     dlfcn_h
+     dlopen
++    dlvsym
+     dos_paths
+     ebp_available
+     ebx_available
+@@ -3053,14 +3054,15 @@ check_ldflags -Wl,--warn-common
+ check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
+ test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
+ 
++check_func dlvsym -lld
+ echo "X{};" > $TMPV
+ if test_ldflags -Wl,--version-script,$TMPV; then
+     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
+-    check_cc <<EOF && enable symver_asm_label
++    enabled dlvsym && check_cc <<EOF && enable symver_asm_label
+ void ff_foo(void) __asm__ ("av_foo@VERSION");
+ void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
+ EOF
+-    check_cc <<EOF && enable symver_gnu_asm
++    enabled dlvsym && check_cc <<EOF && enable symver_gnu_asm
+ __asm__(".symver ff_foo,av_foo@VERSION");
+ void ff_foo(void) {}
+ EOF