--- chromium-50.0.2661.75.ebuild        2016-04-20 18:06:33.000000000 +0000
+++ chromium-50.0.2661.75_ffmpeg_cross_fix.ebuild       2016-04-20 19:52:12.000000000 +0000
@@ -533,6 +533,15 @@
	# TODO: also do this for GN bundled ffmpeg build.
	if ! use system-ffmpeg && ! use gn; then
		local build_ffmpeg_args=""
+		# Set the cross compile and prefix correctly (arm builds have this incorrectly set by build script)
+		build_ffmpeg_args+=" --cross-prefix=${CHOST}-"
+
+		if tc-is-cross-compiler; then
+			build_ffmpeg_args+=" --enable-cross-compile"
+		else
+			build_ffmpeg_args+=" --disable-cross-compile"
+		fi
+
		if use pic && [[ "${ffmpeg_target_arch}" == "ia32" ]]; then
			build_ffmpeg_args+=" --disable-asm"
		fi