commit:     4d3ec052f5c1dccdcb944d92825ea6f6fbd6325d
Author:     David Michael <fedora.dm0 <AT> gmail <DOT> com>
AuthorDate: Sat May 29 13:01:23 2021 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Fri Jun  4 15:04:34 2021 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4d3ec052

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 <AT> gmail.com>
(made the 'if's more verbose)
Signed-off-by: Michał Górny <mgorny <AT> gentoo.org>

 .../libjpeg-turbo/libjpeg-turbo-2.1.0-r2.ebuild    | 128 +++++++++++++++++++++
 1 file changed, 128 insertions(+)

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 00000000000..78714e29ba7
--- /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
+}

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