net-misc/sunshine: Fix cross-compiling with patch

Upstream say they will merge this in time for the next release.

Signed-off-by: James Le Cuirot <chewi@gentoo.org>

3 files changed, 67 insertions, 4 deletions

diff --git a/net-misc/sunshine/files/sunshine-cross-cbs.patch b/net-misc/sunshine/files/sunshine-cross-cbs.patch
new file mode 100644
index 000000000000..e6173597e476
--- /dev/null
+++ b/net-misc/sunshine/files/sunshine-cross-cbs.patch
@@ -0,0 +1,59 @@
+From 40654399bd090dda20750b184eb6b15bc615a5dc Mon Sep 17 00:00:00 2001
+From: James Le Cuirot <chewi@gentoo.org>
+Date: Sun, 25 Feb 2024 16:24:25 +0000
+Subject: [PATCH] Fix cross-compiling and don't treat x86 as the default case
+
+If you set arch-specific CFLAGS, then ffmpeg's configure script may
+fail when it tries to use these flags against the build host's compiler.
+
+Also use CMAKE_SYSTEM_PROCESSOR to set up cross-compiling without
+relying on any custom variables. ffmpeg normalises its --arch option and
+will accept just about any string that you'll likely throw at it.
+
+diff --git a/cmake/ffmpeg_cbs.cmake b/cmake/ffmpeg_cbs.cmake
+index 573bec0..4a75e1a 100644
+--- a/cmake/ffmpeg_cbs.cmake
++++ b/cmake/ffmpeg_cbs.cmake
+@@ -30,23 +30,30 @@ if (WIN32)
+     set(LEADING_SH_COMMAND sh)
+ endif ()
+ 
+-if (CROSS_COMPILE_ARM)
+-    set(FFMPEG_EXTRA_CONFIGURE
+-            --arch=aarch64
+-            --enable-cross-compile)
++string(TOLOWER ${CMAKE_SYSTEM_PROCESSOR} arch)
++
++if (${arch} STREQUAL "aarch64" OR ${arch} STREQUAL "arm64")
+     set(CBS_ARCH_PATH arm)
+-elseif (CROSS_COMPILE_PPC)
+-    set(FFMPEG_EXTRA_CONFIGURE
+-            --arch=powerpc64le
+-            --enable-cross-compile)
++elseif (${arch} STREQUAL "ppc64le")
+     set(CBS_ARCH_PATH ppc)
+-else ()
++elseif (${arch} STREQUAL "amd64" OR ${arch} STREQUAL "x86_64")
+     set(CBS_ARCH_PATH x86)
++else ()
++    message(FATAL_ERROR "Unsupported system processor:" ${CMAKE_SYSTEM_PROCESSOR})
++endif ()
++
++if (CMAKE_CROSSCOMPILING)
++    set(FFMPEG_EXTRA_CONFIGURE --arch=${arch} --enable-cross-compile)
+ endif ()
+ 
+ # The generated config.h needs to have `CONFIG_CBS_` flags enabled (from `--enable-bsfs`)
+ execute_process(
+         COMMAND ${LEADING_SH_COMMAND} ./configure
++            --cc=${CMAKE_C_COMPILER}
++            --cxx=${CMAKE_CXX_COMPILER}
++            --ar=${CMAKE_AR}
++            --ranlib=${CMAKE_RANLIB}
++            --optflags=${CMAKE_C_FLAGS}
+             --disable-all
+             --disable-autodetect
+             --disable-iconv
+-- 
+2.43.2
+
diff --git a/net-misc/sunshine/sunshine-0.21.0.ebuild b/net-misc/sunshine/sunshine-0.21.0.ebuild
index 22cf946e4348..1c21649b7929 100644
--- a/net-misc/sunshine/sunshine-0.21.0.ebuild
+++ b/net-misc/sunshine/sunshine-0.21.0.ebuild
@@ -237,6 +237,10 @@ src_unpack() {
 }
 
 src_prepare() {
+	# Apply CBS patch.
+	cd "${WORKDIR}"/build-deps || die
+	eapply "${FILESDIR}"/${PN}-cross-cbs.patch
+
 	# Apply general ffmpeg patches.
 	cd "${WORKDIR}"/build-deps/ffmpeg_sources/ffmpeg || die
 	eapply "${WORKDIR}"/build-deps/ffmpeg_patches/ffmpeg/*.patch
@@ -329,8 +333,6 @@ src_configure() {
 	local mycmakeargs=(
 		-DBUILD_SHARED_LIBS=no
 		-DCMAKE_INSTALL_PREFIX="${S}"/third-party/ffmpeg
-		$(usex arm64 -DCROSS_COMPILE_ARM=yes "")
-		$(usex ppc64 -DCROSS_COMPILE_PPC=yes "")
 	)
 	CMAKE_USE_DIR="${WORKDIR}/build-deps" cmake_src_configure
 
diff --git a/net-misc/sunshine/sunshine-9999.ebuild b/net-misc/sunshine/sunshine-9999.ebuild
index c88478b1a500..641289cdc732 100644
--- a/net-misc/sunshine/sunshine-9999.ebuild
+++ b/net-misc/sunshine/sunshine-9999.ebuild
@@ -235,6 +235,10 @@ src_unpack() {
 }
 
 src_prepare() {
+	# Apply CBS patch.
+	cd "${WORKDIR}"/build-deps || die
+	eapply "${FILESDIR}"/${PN}-cross-cbs.patch
+
 	# Apply general ffmpeg patches.
 	cd "${WORKDIR}"/build-deps/ffmpeg_sources/ffmpeg || die
 	eapply "${WORKDIR}"/build-deps/ffmpeg_patches/ffmpeg/*.patch
@@ -327,8 +331,6 @@ src_configure() {
 	local mycmakeargs=(
 		-DBUILD_SHARED_LIBS=no
 		-DCMAKE_INSTALL_PREFIX="${S}"/third-party/ffmpeg
-		$(usex arm64 -DCROSS_COMPILE_ARM=yes "")
-		$(usex ppc64 -DCROSS_COMPILE_PPC=yes "")
 	)
 	CMAKE_USE_DIR="${WORKDIR}/build-deps" cmake_src_configure