media-libs/libjpeg-turbo: fix SIMD issues

This adds a NEON CPU flag to disable SIMD on ARM CPUs without NEON,
which avoids ABI-related build failures.

This also drops the obsolete x32 workaround, and it fixes assembler
package detection to use BROOT.

Closes: https://bugs.gentoo.org/792810
Package-Manager: Portage-3.0.18, Repoman-3.0.2
Signed-off-by: David Michael <fedora.dm0@gmail.com>
(made the 'if's more verbose)
Signed-off-by: Michał Górny <mgorny@gentoo.org>

1 files changed, 128 insertions, 0 deletions

diff --git a/media-libs/libjpeg-turbo/libjpeg-turbo-2.1.0-r2.ebuild b/media-libs/libjpeg-turbo/libjpeg-turbo-2.1.0-r2.ebuild
new file mode 100644
index 000000000000..78714e29ba7e
--- /dev/null
+++ b/media-libs/libjpeg-turbo/libjpeg-turbo-2.1.0-r2.ebuild
@@ -0,0 +1,128 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CMAKE_ECLASS=cmake
+inherit cmake-multilib java-pkg-opt-2
+
+DESCRIPTION="MMX, SSE, and SSE2 SIMD accelerated JPEG library"
+HOMEPAGE="https://libjpeg-turbo.org/ https://sourceforge.net/projects/libjpeg-turbo/"
+SRC_URI="mirror://sourceforge/${PN}/${P}.tar.gz
+	mirror://gentoo/libjpeg8_8d-2.debian.tar.gz"
+
+LICENSE="BSD IJG ZLIB"
+SLOT="0/0.2"
+if [[ "$(ver_cut 3)" -lt 90 ]] ; then
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x64-solaris ~x86-solaris"
+fi
+IUSE="cpu_flags_arm_neon java static-libs"
+
+ASM_DEPEND="|| ( dev-lang/nasm dev-lang/yasm )"
+
+COMMON_DEPEND="!media-libs/jpeg:0
+	!media-libs/jpeg:62"
+
+BDEPEND=">=dev-util/cmake-3.16.5
+	amd64? ( ${ASM_DEPEND} )
+	x86? ( ${ASM_DEPEND} )
+	amd64-fbsd? ( ${ASM_DEPEND} )
+	x86-fbsd? ( ${ASM_DEPEND} )
+	amd64-linux? ( ${ASM_DEPEND} )
+	x86-linux? ( ${ASM_DEPEND} )
+	x64-macos? ( ${ASM_DEPEND} )
+	x64-cygwin? ( ${ASM_DEPEND} )"
+
+DEPEND="${COMMON_DEPEND}
+	java? ( >=virtual/jdk-1.8:* )"
+
+RDEPEND="${COMMON_DEPEND}
+	java? ( >=virtual/jre-1.8:* )"
+
+MULTILIB_WRAPPED_HEADERS=( /usr/include/jconfig.h )
+
+src_prepare() {
+	local FILE
+	ln -snf ../debian/extra/*.c . || die
+
+	for FILE in ../debian/extra/*.c; do
+		FILE=${FILE##*/}
+		cat >> CMakeLists.txt <<EOF || die
+add_executable(${FILE%.c} ${FILE})
+install(TARGETS ${FILE%.c})
+EOF
+	done
+
+	for FILE in ../debian/extra/exifautotran; do
+		cat >> CMakeLists.txt <<EOF || die
+install(FILES \${CMAKE_CURRENT_SOURCE_DIR}/${FILE} DESTINATION \${CMAKE_INSTALL_BINDIR})
+EOF
+	done
+
+	for FILE in ../debian/extra/*.[0-9]*; do
+		cat >> CMakeLists.txt <<EOF || die
+install(FILES \${CMAKE_CURRENT_SOURCE_DIR}/${FILE} DESTINATION \${CMAKE_INSTALL_MANDIR}/man${FILE##*.})
+EOF
+	done
+
+	cmake_src_prepare
+	java-pkg-opt-2_src_prepare
+}
+
+multilib_src_configure() {
+	if multilib_is_native_abi && use java ; then
+		export JAVACFLAGS="$(java-pkg_javac-args)"
+		export JNI_CFLAGS="$(java-pkg_get-jni-cflags)"
+	fi
+
+	local mycmakeargs=(
+		-DCMAKE_INSTALL_DEFAULT_DOCDIR="${EPREFIX}/usr/share/doc/${PF}"
+		-DENABLE_STATIC="$(usex static-libs)"
+		-DWITH_JAVA="$(multilib_native_usex java)"
+		-DWITH_MEM_SRCDST=ON
+	)
+
+	# Avoid ARM ABI issues by disabling SIMD for CPUs without NEON. #792810
+	if use arm; then
+		mycmakeargs+=(
+			-DWITH_SIMD:BOOL=$(usex cpu_flags_arm_neon ON OFF)
+		)
+	fi
+
+	# mostly for Prefix, ensure that we use our yasm if installed and
+	# not pick up host-provided nasm
+	if has_version -b dev-lang/yasm && ! has_version -b dev-lang/nasm; then
+		mycmakeargs+=(
+			-DCMAKE_ASM_NASM_COMPILER=$(type -P yasm)
+		)
+	fi
+
+	cmake_src_configure
+}
+
+multilib_src_install() {
+	cmake_src_install
+
+	if multilib_is_native_abi && use java ; then
+		rm -rf "${ED}"/usr/classes || die
+		java-pkg_dojar java/turbojpeg.jar
+	fi
+}
+
+multilib_src_install_all() {
+	find "${ED}" -type f -name '*.la' -delete || die
+
+	local -a DOCS=( README.md ChangeLog.md )
+	einstalldocs
+
+	newdoc "${WORKDIR}"/debian/changelog changelog.debian
+
+	docinto html
+	dodoc -r "${S}"/doc/html/.
+
+	if use java; then
+		docinto html/java
+		dodoc -r "${S}"/java/doc/.
+		newdoc "${S}"/java/README README.java
+	fi
+}