media-libs/libaom: fix musl build (ftello)

Closes: https://bugs.gentoo.org/869419
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 126 insertions, 0 deletions

diff --git a/media-libs/libaom/files/libaom-3.4.0-posix-c-source-ftello.patch b/media-libs/libaom/files/libaom-3.4.0-posix-c-source-ftello.patch
new file mode 100644
index 000000000000..6e910b3f732c
--- /dev/null
+++ b/media-libs/libaom/files/libaom-3.4.0-posix-c-source-ftello.patch
@@ -0,0 +1,13 @@
+https://bugs.gentoo.org/869419
+
+POSIX_C_SOURCE is needed for ftello.
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -266,6 +266,7 @@ add_library(aom_rtcd OBJECT ${AOM_RTCD_SOURCES})
+ add_dependencies(aom_rtcd aom_version)
+ 
+ if(ENABLE_EXAMPLES)
++  add_definitions(-D_POSIX_C_SOURCE=200112L)
+   add_library(aom_encoder_stats OBJECT ${AOM_ENCODER_STATS_SOURCES})
+   set(AOM_LIB_TARGETS ${AOM_LIB_TARGETS} aom_encoder_stats)
+ endif()
diff --git a/media-libs/libaom/libaom-3.4.0-r1.ebuild b/media-libs/libaom/libaom-3.4.0-r1.ebuild
new file mode 100644
index 000000000000..7c969b44ed77
--- /dev/null
+++ b/media-libs/libaom/libaom-3.4.0-r1.ebuild
@@ -0,0 +1,113 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+inherit cmake-multilib python-any-r1
+
+if [[ ${PV} == *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="https://aomedia.googlesource.com/aom"
+else
+	SRC_URI="https://storage.googleapis.com/aom-releases/${P}.tar.gz"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86"
+fi
+
+DESCRIPTION="Alliance for Open Media AV1 Codec SDK"
+HOMEPAGE="https://aomedia.org https://aomedia.googlesource.com/aom/"
+
+LICENSE="BSD-2"
+SLOT="0/3"
+IUSE="doc +examples test"
+IUSE="${IUSE} cpu_flags_x86_mmx cpu_flags_x86_sse cpu_flags_x86_sse2 cpu_flags_x86_sse3 cpu_flags_x86_ssse3"
+IUSE="${IUSE} cpu_flags_x86_sse4_1 cpu_flags_x86_sse4_2 cpu_flags_x86_avx cpu_flags_x86_avx2"
+IUSE="${IUSE} cpu_flags_arm_neon"
+# Tests need more wiring up
+RESTRICT="!test? ( test ) test"
+
+REQUIRED_USE="
+	cpu_flags_x86_sse2? ( cpu_flags_x86_mmx )
+	cpu_flags_x86_ssse3? ( cpu_flags_x86_sse2 )
+"
+
+BDEPEND="${PYTHON_DEPS}
+	dev-lang/perl
+	abi_x86_32? ( dev-lang/yasm )
+	abi_x86_64? ( dev-lang/yasm )
+	abi_x86_x32? ( dev-lang/yasm )
+	doc? ( app-doc/doxygen )
+"
+
+# The PATENTS file is required to be distributed with this package, bug #682214
+DOCS=( PATENTS )
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-3.4.0-posix-c-source-ftello.patch
+)
+
+multilib_src_configure() {
+	local mycmakeargs=(
+		-DENABLE_CCACHE=OFF
+		-DENABLE_DOCS=$(multilib_native_usex doc ON OFF)
+		-DENABLE_EXAMPLES=$(multilib_native_usex examples ON OFF)
+		-DENABLE_NASM=OFF
+		-DENABLE_TESTS=$(usex test)
+		-DENABLE_TOOLS=ON
+		-DENABLE_WERROR=OFF
+
+		# Needs libjxl, currently unpackaged.
+		-DCONFIG_TUNE_BUTTERAUGLI=0
+
+		# neon support is assumed to be always enabled on arm64
+		-DENABLE_NEON=$(usex cpu_flags_arm_neon ON $(usex arm64 ON OFF))
+		# ENABLE_DSPR2 / ENABLE_MSA for mips
+		-DENABLE_MMX=$(usex cpu_flags_x86_mmx ON OFF)
+		-DENABLE_SSE=$(usex cpu_flags_x86_sse ON OFF)
+		-DENABLE_SSE2=$(usex cpu_flags_x86_sse2 ON OFF)
+		-DENABLE_SSE3=$(usex cpu_flags_x86_sse3 ON OFF)
+		-DENABLE_SSSE3=$(usex cpu_flags_x86_ssse3 ON OFF)
+		-DENABLE_SSE4_1=$(usex cpu_flags_x86_sse4_1 ON OFF)
+		-DENABLE_SSE4_2=$(usex cpu_flags_x86_sse4_2 ON OFF)
+		-DENABLE_AVX=$(usex cpu_flags_x86_avx ON OFF)
+		-DENABLE_AVX2=$(usex cpu_flags_x86_avx2 ON OFF)
+	)
+
+	# For 32-bit multilib builds, force some intrinsics on to work around
+	# bug #816027. libaom seems to do runtime detection for some targets
+	# at least, so this isn't an issue.
+	if ! multilib_is_native_abi && use amd64 ; then
+		mycmakeargs+=(
+			-DENABLE_SSE3=ON
+			-DENABLE_SSSE3=ON
+		)
+	fi
+
+	# On ARM32-on-ARM64, things end up failing if NEON is off, bug #835456
+	# Just force generic, given it's a niche situation.
+	# TODO: could try forcing armv7 or similar?
+	if use arm && ! use cpu_flags_arm_neon && [[ $(uname -p) == "aarch64" ]] ; then
+		ewarn "Forcing generic for arm32-on-arm64 build (bug #835456)"
+		mycmakeargs+=(
+			-DAOM_TARGET_CPU=generic
+		)
+	fi
+
+	cmake_src_configure
+}
+
+multilib_src_test() {
+	"${BUILD_DIR}"/test_libaom || die
+}
+
+multilib_src_install() {
+	if multilib_is_native_abi && use doc ; then
+		local HTML_DOCS=( "${BUILD_DIR}"/docs/html/. )
+	fi
+
+	cmake_src_install
+}
+
+multilib_src_install_all() {
+	find "${ED}" -type f \( -name "*.a" -o -name "*.la" \) -delete || die
+}