libvpx: remove sed -i

extra/libvpx/build

@@ -2,12 +2,11 @@
 
 export CC=${CC:-cc} CXX=${CXX:-c++}
 
-patch -p1 < fix-busybox-diff.patch
-
-# Remove the perl requirement from configure
-# as we have removed the perl requirement
-# ourselves :-).
-sed -i 's/perl/:/g' configure
+# Remove the perl requirement from configure.
+# Also fix issue with non-GNU diff.
+sed 's/perl/:/g;s/diff --version/command -v diff/' configure > _
+mv -f _ configure
+chmod +x configure
 
 ./configure \
     --prefix=/usr \

extra/libvpx/checksums

@@ -1,5 +1,4 @@
 85803ccbdbdd7a3b03d930187cb055f1353596969c1f92ebec2db839fa4f834a
-ce802d64bcbeb4230527aea2b4284d9844fb12fa5aca868a94e03982f85ec45b
 e6aa264d60371d76e39a8fa0118e37915ea348400f82046d083a4511d229f8eb
 bc2ab604abf616682374d65c9d154e6e2dac0524fd969b12ab4d81e30452b904
 77716ffb6d08322a3f300b9adad302641836af6e923854eba040a95e0766fa70

extra/libvpx/patches/fix-busybox-diff.patch

@@ -1,13 +0,0 @@
-diff --git a/configure b/configure
-index e5a74c6..11f660d 100755
---- a/configure
-+++ b/configure
-@@ -170,7 +170,7 @@ for t in ${all_targets}; do
-     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
- done
- 
--if ! diff --version >/dev/null; then
-+if ! command -v diff >/dev/null; then
-   die "diff missing: Try installing diffutils via your package manager."
- fi
- 

extra/libvpx/sources

@@ -1,5 +1,4 @@
 https://github.com/webmproject/libvpx/archive/v1.10.0.tar.gz
-patches/fix-busybox-diff.patch
 files/vp9_rtcd.h
 files/vp8_rtcd.h
 files/vpx_scale_rtcd.h