[patch] Ebuild patch to fix ffmpeg on PIC platforms.

ffmpeg-0.4.9_pre1-pic.patch (text/plain), 2.51 KB, created by Kevin F. Quinn (RETIRED) on 2005-03-02 02:48:26 UTC

--- ffmpeg-0.4.9_pre1.ebuild.orig	2005-03-02 11:11:50.357080784 +0100
+++ ffmpeg-0.4.9_pre1.ebuild	2005-03-02 11:40:12.511314008 +0100
@@ -15,7 +15,7 @@
 LICENSE="LGPL-2"
 SLOT="0"
 KEYWORDS="~x86 ~ppc ~sparc ~alpha ~amd64 ~ia64 ppc64 ~arm ~mips ~hppa"
-IUSE="altivec debug doc dvd encode aac imlib mmx oggvorbis sdl static truetype"
+IUSE="altivec debug doc dvd encode aac imlib mmx oggvorbis pic sdl static truetype"
 
 DEPEND="encode? ( >=media-sound/lame-3.92 )
 	oggvorbis? ( >=media-libs/libvorbis-1.0-r1 )
@@ -32,7 +32,7 @@
 	unpack ${A} || die
 	cd ${S}
 
-	# for some reason it tries to #include <X11/Xlib.h>,b ut doesn't use it
+	# for some reason it tries to #include <X11/Xlib.h>, but doesn't use it
 	cd ${S}
 	sed -i s:\#define\ HAVE_X11:\#define\ HAVE_LINUX: ffplay.c
 
@@ -42,20 +42,38 @@
 		einfo "Compiler used: gcc-3.4.x Applying patch conditionally."
 		epatch ${FILESDIR}/0.4.8-gcc3.4-magicF2W.patch
 	fi
+
+	# If MMX isn't to be built, make the libraries properly PIC
+	# Should also cover bug #16281
+	if use pic || use !mmx; then
+		# ffmpeg doesn't use libtool, so the condition for PIC code
+		# is __PIC__, not PIC.
+		sed -i.orig 's/#if\(\(.*def *\)\|\(.*defined *\)\)PIC/#if\1__PIC__/' \
+			libavcodec/i386/dsputil_mmx{.c,_rnd.h} \
+			libavcodec/msmpeg4.c \
+			|| die "sed failed (__PIC__)"
+		# Fixup library makefiles to add '-fPIC'.
+		sed -i.orig 's/CFLAGS=/CFLAGS=-fPIC /' \
+			libav{codec,format}/Makefile \
+			|| die "sed failed (-fPIC)"
+		# Fixup liba52 to respect the --disable-mmx configure option
+		sed -i.orig 's/#ifdef ARCH_X86/#ifdef HAVE_MMX/' \
+			libavcodec/liba52/resample.c \
+			|| die "sed failed (HAVE_MMX)"
+	fi
 }
 
 src_compile() {
-	filter-flags -fforce-addr -fPIC
-	# fixes bug #16281
-	use alpha && append-flags -fPIC
-	use amd64 && append-flags -fPIC
-	use hppa && append-flags -fPIC
-	use ppc && append-flags -fPIC
+	# Note; library makefiles don't propogate flags from config.mak so
+	# user-specified CFLAGS are only used in the executables.
+	filter-flags -fforce-addr
 
 	local myconf
 	#myconf="${myconf} --disable-opts --enable-pp --enable-shared-pp"
 	myconf="${myconf} --disable-opts --enable-pp --enable-gpl"
-	use mmx || myconf="${myconf} --disable-mmx"
+	# Disable mmx accelerated code if not requested, or if PIC is required
+	# as the provided asm isn't PIC.
+	( use pic || use !mmx ) && myconf="${myconf} --disable-mmx"
 	use encode && myconf="${myconf} --enable-mp3lame"
 	use oggvorbis && myconf="${myconf} --enable-vorbis"
 	use aac && myconf="${myconf} --enable-faad --enable-faadbin"