psstoyanov/PKGBUILD

## PKGBUILD
# Post-bootrapped gcc with ada. Reverted islver and pkgver.
# Increased pkgrel to 5 so that it won't be blocking pacman upgrade on Manjaro.

# Maintainer:  Bartłomiej Piotrowski <bpiotrowski@archlinux.org>
# Contributor: Allan McRae <allan@archlinux.org>
# Contributor: Daniel Kozak <kozzi11@gmail.com>

# toolchain build order: linux-api-headers->glibc->binutils->gcc->binutils->glibc
# NOTE: libtool requires rebuilt with each new gcc version

# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
#  - disabled make check, too much stress, kills plugs :(
#  - specifid build host, disabled distcc
#  - replaced bugurl with our GitHub issue page
#  - patch to disable LDRD/STRD instructions on ARMv5

noautobuild=1

pkgname=(gcc gcc-libs gcc-fortran gcc-objc gcc-go gcc-ada gcc-d)
pkgver=9.2.0
_majorver=${pkgver:0:1}
_islver=0.21
pkgrel=5
pkgdesc='The GNU Compiler Collection'
arch=(aarch64)
license=(GPL LGPL FDL custom)
url='https://gcc.gnu.org'
makedepends=(binutils libmpc doxygen python subversion)
checkdepends=(dejagnu inetutils)
options=(!emptydirs !distcc)
#source=(https://sources.archlinux.org/other/gcc/gcc-${pkgver/+/-}.tar.xz{,.sig}
source=(https://ftp.gnu.org/gnu/gcc/gcc-$pkgver/gcc-$pkgver.tar.xz{,.sig}
#source=(gcc::svn://gcc.gnu.org/svn/gcc/branches/gcc-${_majorver}-branch
        http://isl.gforge.inria.fr/isl-${_islver}.tar.xz
        c89 c99
        gdc_phobos_path.patch
        gdc_artificial_decl.patch
        gdc_thunk_weak_ref.patch
        0001-ARMv5-disable-LDRD-STRD.patch)
validpgpkeys=(F3691687D867B81B51CE07D9BBE43771487328A9  # bpiotrowski@archlinux.org
              86CFFCA918CF3AF47147588051E8B148A9999C34  # evangelos@foutrelis.com
              13975A70E63C361C73AE69EF6EEB81F8981C74C7  # richard.guenther@gmail.com
              33C235A34C46AA3FFB293709A328C3A2C3C45C06) # Jakub Jelinek <jakub@redhat.com>
sha256sums=('ea6ef08f121239da5695f76c9b33637a118dcf63e24164422231917fa61fb206'
            'SKIP'
            '777058852a3db9500954361e294881214f6ecd4b594c00da5eee974cd6a54960'
            'de48736f6e4153f03d0a5d38ceb6c6fdb7f054e8f47ddd6af0a3dbf14f27b931'
            '2513c6d9984dd0a2058557bf00f06d8d5181734e41dcfe07be7ed86f2959622a'
            'c86372c207d174c0918d4aedf1cb79f7fc093649eb1ad8d9450dccc46849d308'
            '3862757491160700ac2fb723096f6f636f30320cccc6efd9537149ed348b57d1'
            '9699d7105375754f0dcf6abff87d09b270565bfc6578a13641770f3fc62d678a'
            'ac6663528a1cbea30ed9627ef41ef13f25b3cd49c31e22b45b04aa911e6f562f')

_svnrev=264010
_svnurl=svn://gcc.gnu.org/svn/gcc/branches/gcc-${_majorver}-branch
_libdir=usr/lib/gcc/$CHOST/${pkgver%%+*}

snapshot() {
  svn export -r${_svnrev} ${_svnurl} gcc-r${_svnrev}

  local datestamp basever _pkgver
  basever=$(< gcc-r${_svnrev}/gcc/BASE-VER)
  datestamp=$(< gcc-r${_svnrev}/gcc/DATESTAMP)
  _pkgver=${basever}-${datestamp}

  mv gcc-r${_svnrev} gcc-${_pkgver}
  tar cf - gcc-${_pkgver} | xz > gcc-${_pkgver}.tar.xz
  rm -rf gcc-${_pkgver}
  gpg -b gcc-${_pkgver}.tar.xz
  scp gcc-${_pkgver}.tar.xz{,.sig} sources.archlinux.org:/srv/ftp/other/gcc/

  echo
  echo "pkgver=${_pkgver/-/+}"
}

prepare() {
  [[ ! -d gcc ]] && ln -s gcc-${pkgver/+/-} gcc
  cd gcc

  # link isl for in-tree build
  ln -s ../isl-${_islver} isl

  # Do not run fixincludes
  sed -i 's@\./fixinc\.sh@-c true@' gcc/Makefile.in

  # Arch Linux installs x86_64 libraries /lib
  [[ $CARCH == "x86_64" ]] && sed -i '/m64=/s/lib64/lib/' gcc/config/i386/t-linux64

  # Arch Linux ARM installs aarch64 libraries /lib
  [[ $CARCH == "aarch64" ]] && sed -i '/lp64=/s/lib64/lib/' gcc/config/aarch64/t-aarch64-linux

  # hack! - some configure tests for header files using "$CPP $CPPFLAGS"
  sed -i "/ac_cpp=/s/\$CPPFLAGS/\$CPPFLAGS -O2/" {libiberty,gcc}/configure

  # D hacks
  patch -p1 -i "$srcdir/gdc_phobos_path.patch"
  patch -p1 -i "$srcdir/gdc_artificial_decl.patch"
  patch -p1 -i "$srcdir/gdc_thunk_weak_ref.patch"
  #sed -i "/GDCFLAGSX=/s/-Wall/-shared-libphobos -Wall/" libphobos/configure

  # ALARM: Specify build host types, triplet patch
  [[ $CARCH == "arm" ]] && CONFIGFLAG="--host=armv5tel-unknown-linux-gnueabi --build=armv5tel-unknown-linux-gnueabi --with-arch=armv5te --with-float=soft"
  [[ $CARCH == "armv6h" ]] && CONFIGFLAG="--host=armv6l-unknown-linux-gnueabihf --build=armv6l-unknown-linux-gnueabihf --with-arch=armv6 --with-float=hard --with-fpu=vfp"
  [[ $CARCH == "armv7h" ]] && CONFIGFLAG="--host=armv7l-unknown-linux-gnueabihf --build=armv7l-unknown-linux-gnueabihf --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16"
  [[ $CARCH == "aarch64" ]] && CONFIGFLAG="--host=aarch64-unknown-linux-gnu --build=aarch64-unknown-linux-gnu --with-arch=armv8-a --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419"

  mkdir -p "$srcdir/gcc-build"

  # Disable LDRD/STRD on ARMv5 (64-bit alignment issues)
  patch -p1 -i ../0001-ARMv5-disable-LDRD-STRD.patch
}

build() {
  cd gcc-build

  # using -pipe causes spurious test-suite failures
  # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48565
  CFLAGS=${CFLAGS/-pipe/}
  CXXFLAGS=${CXXFLAGS/-pipe/}

  "$srcdir/gcc/configure" --prefix=/usr \
      --libdir=/usr/lib \
      --libexecdir=/usr/lib \
      --mandir=/usr/share/man \
      --infodir=/usr/share/info \
      --with-bugurl=https://github.com/archlinuxarm/PKGBUILDs/issues \
      --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++,d \
      --enable-shared \
      --enable-threads=posix \
      --with-system-zlib \
      --with-isl \
      --enable-__cxa_atexit \
      --disable-libunwind-exceptions \
      --enable-clocale=gnu \
      --disable-libstdcxx-pch \
      --disable-libssp \
      --enable-gnu-unique-object \
      --enable-linker-build-id \
      --enable-lto \
      --enable-plugin \
      --enable-install-libiberty \
      --with-linker-hash-style=gnu \
      --enable-gnu-indirect-function \
      --disable-multilib \
      --disable-werror \
      --enable-checking=release \
      --enable-default-pie \
      --enable-default-ssp \
      $CONFIGFLAG \
      gdc_include_dir=/usr/include/dlang/gdc

  make

  # make documentation
  make -C $CHOST/libstdc++-v3/doc doc-man-doxygen
}

check() {
  cd gcc-build

  # disable libphobos test to avoid segfaults and other unfunny ways to waste my time
  sed -i '/maybe-check-target-libphobos \\/d' Makefile

  # do not abort on error as some are "expected"
  make -k check || true
  "$srcdir/gcc/contrib/test_summary"
}

package_gcc-libs() {
  pkgdesc='Runtime libraries shipped by GCC'
  groups=(base)
  depends=('glibc>=2.27')
  options+=(!strip)
  provides=(libgo.so libgfortran.so libgphobos.so
            libubsan.so libasan.so liblsan.so)
  replaces=(libgphobos)
  if [[ $CARCH == "aarch64" ]]; then
    provides+=(libtsan.so)
  fi

  cd gcc-build
  make -C $CHOST/libgcc DESTDIR="$pkgdir" install-shared
  rm -f "$pkgdir/$_libdir/libgcc_eh.a"

  for lib in libatomic \
             libgfortran \
             libgo \
             libgomp \
             libitm \
             libquadmath \
             libsanitizer/{a,l,ub}san \
             libstdc++-v3/src \
             libvtv; do
    make -C $CHOST/$lib DESTDIR="$pkgdir" install-toolexeclibLTLIBRARIES
  done

  if [[ $CARCH == "x86_64" || $CARCH == "aarch64" ]]; then
    make -C $CHOST/libsanitizer/tsan DESTDIR="$pkgdir" install-toolexeclibLTLIBRARIES
  fi

  make -C $CHOST/libobjc DESTDIR="$pkgdir" install-libs
  make -C $CHOST/libstdc++-v3/po DESTDIR="$pkgdir" install

  make -C $CHOST/libphobos DESTDIR="$pkgdir" install
  rm -rf "$pkgdir"/usr/lib/gcc/*/9.2.0/include/d/
  rm -f "$pkgdir"/usr/lib/libgphobos.spec

  for lib in libgomp \
             libitm \
             libquadmath; do
    make -C $CHOST/$lib DESTDIR="$pkgdir" install-info
  done

  # Install Runtime Library Exception
  install -Dm644 "$srcdir/gcc/COPYING.RUNTIME" \
    "$pkgdir/usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION"
}

package_gcc() {
  pkgdesc="The GNU Compiler Collection - C and C++ frontends"
  depends=("gcc-libs=$pkgver-$pkgrel" 'binutils>=2.28' libmpc)
  groups=('base-devel')
  options+=(staticlibs)

  cd gcc-build

  make -C gcc DESTDIR="$pkgdir" install-driver install-cpp install-gcc-ar \
    c++.install-common install-headers install-plugin install-lto-wrapper

  install -m755 -t "$pkgdir/usr/bin/" gcc/gcov{,-tool}
  install -m755 -t "$pkgdir/${_libdir}/" gcc/{cc1,cc1plus,collect2,lto1}

  make -C $CHOST/libgcc DESTDIR="$pkgdir" install
  rm -f "$pkgdir"/usr/lib/libgcc_s.so*

  make -C $CHOST/libstdc++-v3/src DESTDIR="$pkgdir" install
  make -C $CHOST/libstdc++-v3/include DESTDIR="$pkgdir" install
  make -C $CHOST/libstdc++-v3/libsupc++ DESTDIR="$pkgdir" install
  make -C $CHOST/libstdc++-v3/python DESTDIR="$pkgdir" install

  make DESTDIR="$pkgdir" install-libcc1
  install -d "$pkgdir/usr/share/gdb/auto-load/usr/lib"
  mv "$pkgdir"/usr/lib/libstdc++.so.6.*-gdb.py \
    "$pkgdir/usr/share/gdb/auto-load/usr/lib/"
  rm "$pkgdir"/usr/lib/libstdc++.so*

  make DESTDIR="$pkgdir" install-fixincludes
  make -C gcc DESTDIR="$pkgdir" install-mkheaders

  make -C lto-plugin DESTDIR="$pkgdir" install
  install -dm755 "$pkgdir"/usr/lib/bfd-plugins/
  ln -s /${_libdir}/liblto_plugin.so \
    "$pkgdir/usr/lib/bfd-plugins/"

  make -C $CHOST/libgomp DESTDIR="$pkgdir" install-nodist_{libsubinclude,toolexeclib}HEADERS
  make -C $CHOST/libitm DESTDIR="$pkgdir" install-nodist_toolexeclibHEADERS
  make -C $CHOST/libquadmath DESTDIR="$pkgdir" install-nodist_libsubincludeHEADERS
  make -C $CHOST/libsanitizer DESTDIR="$pkgdir" install-nodist_{saninclude,toolexeclib}HEADERS
  make -C $CHOST/libsanitizer/asan DESTDIR="$pkgdir" install-nodist_toolexeclibHEADERS
  if [[ $CARCH == "aarch64" ]]; then
    make -C $CHOST/libsanitizer/tsan DESTDIR="$pkgdir" install-nodist_toolexeclibHEADERS
  fi
  make -C $CHOST/libsanitizer/lsan DESTDIR="$pkgdir" install-nodist_toolexeclibHEADERS

  make -C libiberty DESTDIR="$pkgdir" install
  install -m644 libiberty/pic/libiberty.a "$pkgdir/usr/lib"

  make -C gcc DESTDIR="$pkgdir" install-man install-info
  rm "$pkgdir"/usr/share/man/man1/{gccgo,gfortran,gdc}.1
  rm "$pkgdir"/usr/share/info/{gccgo,gfortran,gnat-style,gnat_rm,gnat_ugn,gdc}.info

  make -C libcpp DESTDIR="$pkgdir" install
  make -C gcc DESTDIR="$pkgdir" install-po

  # many packages expect this symlink
  ln -s gcc "$pkgdir"/usr/bin/cc

  # POSIX conformance launcher scripts for c89 and c99
  install -Dm755 "$srcdir/c89" "$pkgdir/usr/bin/c89"
  install -Dm755 "$srcdir/c99" "$pkgdir/usr/bin/c99"

  # install the libstdc++ man pages
  make -C $CHOST/libstdc++-v3/doc DESTDIR="$pkgdir" doc-install-man

  # byte-compile python libraries
  python -m compileall "$pkgdir/usr/share/gcc-${pkgver%%+*}/"
  python -O -m compileall "$pkgdir/usr/share/gcc-${pkgver%%+*}/"

  # Install Runtime Library Exception
  install -d "$pkgdir/usr/share/licenses/$pkgname/"
  ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
    "$pkgdir/usr/share/licenses/$pkgname/"
}

package_gcc-fortran() {
  pkgdesc='Fortran front-end for GCC'
  depends=("gcc=$pkgver-$pkgrel")

  cd gcc-build
  make -C $CHOST/libgfortran DESTDIR="$pkgdir" install-cafexeclibLTLIBRARIES \
    install-{toolexeclibDATA,nodist_fincludeHEADERS,gfor_cHEADERS}
  make -C $CHOST/libgomp DESTDIR="$pkgdir" install-nodist_fincludeHEADERS
  make -C gcc DESTDIR="$pkgdir" fortran.install-{common,man,info}
  install -Dm755 gcc/f951 "$pkgdir/${_libdir}/f951"

  ln -s gfortran "$pkgdir/usr/bin/f95"

  # Install Runtime Library Exception
  install -d "$pkgdir/usr/share/licenses/$pkgname/"
  ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
    "$pkgdir/usr/share/licenses/$pkgname/"
}

package_gcc-objc() {
  pkgdesc='Objective-C front-end for GCC'
  depends=("gcc=$pkgver-$pkgrel")

  cd gcc-build
  make DESTDIR="$pkgdir" -C $CHOST/libobjc install-headers
  install -dm755 "$pkgdir/${_libdir}"
  install -m755 gcc/cc1obj{,plus} "$pkgdir/${_libdir}/"

  # Install Runtime Library Exception
  install -d "$pkgdir/usr/share/licenses/$pkgname/"
  ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
    "$pkgdir/usr/share/licenses/$pkgname/"
}

package_gcc-ada() {
  pkgdesc='Ada front-end for GCC (GNAT)'
  depends=("gcc=$pkgver-$pkgrel")
  options+=(staticlibs)

  cd gcc-build/gcc
  make DESTDIR="$pkgdir" ada.install-{common,info}
  install -m755 gnat1 "$pkgdir/${_libdir}"

  ln -s gcc "$pkgdir/usr/bin/gnatgcc"

  # insist on dynamic linking, but keep static libraries because gnatmake complains
  mv "$pkgdir"/${_libdir}/adalib/libgna{rl,t}-${_majorver}.so "$pkgdir/usr/lib"
  ln -s libgnarl-${_majorver}.so "$pkgdir/usr/lib/libgnarl.so"
  ln -s libgnat-${_majorver}.so "$pkgdir/usr/lib/libgnat.so"
  rm -f "$pkgdir"/${_libdir}/adalib/libgna{rl,t}.so

  # Install Runtime Library Exception
  install -d "$pkgdir/usr/share/licenses/$pkgname/"
  ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
    "$pkgdir/usr/share/licenses/$pkgname/"
}

package_gcc-go() {
  pkgdesc='Go front-end for GCC'
  depends=("gcc=$pkgver-$pkgrel")
  provides=("go=1.12.2")
  conflicts=(go)

  cd gcc-build
  make -C $CHOST/libgo DESTDIR="$pkgdir" install-exec-am
  make DESTDIR="$pkgdir" install-gotools
  make -C gcc DESTDIR="$pkgdir" go.install-{common,man,info}

  rm -f "$pkgdir"/usr/lib/libgo.so*
  install -Dm755 gcc/go1 "$pkgdir/${_libdir}/go1"

  # Install Runtime Library Exception
  install -d "$pkgdir/usr/share/licenses/$pkgname/"
  ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
    "$pkgdir/usr/share/licenses/$pkgname/"
}

package_gcc-d() {
  pkgdesc="D frontend for GCC"
  depends=("gcc=$pkgver-$pkgrel")
  provides=(gdc)
  replaces=(gdc)
  options=('staticlibs')

  cd gcc-build
  make -C gcc DESTDIR="$pkgdir" d.install-{common,man,info}

  install -Dm755 gcc/gdc "$pkgdir"/usr/bin/gdc
  install -Dm755 gcc/d21 "$pkgdir"/"$_libdir"/d21

  make -C $CHOST/libphobos DESTDIR="$pkgdir" install
  rm -f "$pkgdir/usr/lib/"lib{gphobos,gdruntime}.so*
  rm -f "$pkgdir/usr/lib32/"lib{gphobos,gdruntime}.so*

  install -d "$pkgdir"/usr/include/dlang
  ln -s /"${_libdir}"/include/d "$pkgdir"/usr/include/dlang/gdc

  # Install Runtime Library Exception
  install -d "$pkgdir/usr/share/licenses/$pkgname/"
  ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
    "$pkgdir/usr/share/licenses/$pkgname/"
}
	# Post-bootrapped gcc with ada. Reverted islver and pkgver.
	# Increased pkgrel to 5 so that it won't be blocking pacman upgrade on Manjaro.

	# Maintainer: Bartłomiej Piotrowski <bpiotrowski@archlinux.org>
	# Contributor: Allan McRae <allan@archlinux.org>
	# Contributor: Daniel Kozak <kozzi11@gmail.com>

	# toolchain build order: linux-api-headers->glibc->binutils->gcc->binutils->glibc
	# NOTE: libtool requires rebuilt with each new gcc version

	# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
	# - disabled make check, too much stress, kills plugs :(
	# - specifid build host, disabled distcc
	# - replaced bugurl with our GitHub issue page
	# - patch to disable LDRD/STRD instructions on ARMv5

	noautobuild=1

	pkgname=(gcc gcc-libs gcc-fortran gcc-objc gcc-go gcc-ada gcc-d)
	pkgver=9.2.0
	_majorver=${pkgver:0:1}
	_islver=0.21
	pkgrel=5
	pkgdesc='The GNU Compiler Collection'
	arch=(aarch64)
	license=(GPL LGPL FDL custom)
	url='https://gcc.gnu.org'
	makedepends=(binutils libmpc doxygen python subversion)
	checkdepends=(dejagnu inetutils)
	options=(!emptydirs !distcc)
	#source=(https://sources.archlinux.org/other/gcc/gcc-${pkgver/+/-}.tar.xz{,.sig}
	source=(https://ftp.gnu.org/gnu/gcc/gcc-$pkgver/gcc-$pkgver.tar.xz{,.sig}
	#source=(gcc::svn://gcc.gnu.org/svn/gcc/branches/gcc-${_majorver}-branch
	http://isl.gforge.inria.fr/isl-${_islver}.tar.xz
	c89 c99
	gdc_phobos_path.patch
	gdc_artificial_decl.patch
	gdc_thunk_weak_ref.patch
	0001-ARMv5-disable-LDRD-STRD.patch)
	validpgpkeys=(F3691687D867B81B51CE07D9BBE43771487328A9 # bpiotrowski@archlinux.org
	86CFFCA918CF3AF47147588051E8B148A9999C34 # evangelos@foutrelis.com
	13975A70E63C361C73AE69EF6EEB81F8981C74C7 # richard.guenther@gmail.com
	33C235A34C46AA3FFB293709A328C3A2C3C45C06) # Jakub Jelinek <jakub@redhat.com>
	sha256sums=('ea6ef08f121239da5695f76c9b33637a118dcf63e24164422231917fa61fb206'
	'SKIP'
	'777058852a3db9500954361e294881214f6ecd4b594c00da5eee974cd6a54960'
	'de48736f6e4153f03d0a5d38ceb6c6fdb7f054e8f47ddd6af0a3dbf14f27b931'
	'2513c6d9984dd0a2058557bf00f06d8d5181734e41dcfe07be7ed86f2959622a'
	'c86372c207d174c0918d4aedf1cb79f7fc093649eb1ad8d9450dccc46849d308'
	'3862757491160700ac2fb723096f6f636f30320cccc6efd9537149ed348b57d1'
	'9699d7105375754f0dcf6abff87d09b270565bfc6578a13641770f3fc62d678a'
	'ac6663528a1cbea30ed9627ef41ef13f25b3cd49c31e22b45b04aa911e6f562f')

	_svnrev=264010
	_svnurl=svn://gcc.gnu.org/svn/gcc/branches/gcc-${_majorver}-branch
	_libdir=usr/lib/gcc/$CHOST/${pkgver%%+*}

	snapshot() {
	svn export -r${_svnrev} ${_svnurl} gcc-r${_svnrev}

	local datestamp basever _pkgver
	basever=$(< gcc-r${_svnrev}/gcc/BASE-VER)
	datestamp=$(< gcc-r${_svnrev}/gcc/DATESTAMP)
	_pkgver=${basever}-${datestamp}

	mv gcc-r${_svnrev} gcc-${_pkgver}
	tar cf - gcc-${_pkgver} \| xz > gcc-${_pkgver}.tar.xz
	rm -rf gcc-${_pkgver}
	gpg -b gcc-${_pkgver}.tar.xz
	scp gcc-${_pkgver}.tar.xz{,.sig} sources.archlinux.org:/srv/ftp/other/gcc/

	echo
	echo "pkgver=${_pkgver/-/+}"
	}

	prepare() {
	[[ ! -d gcc ]] && ln -s gcc-${pkgver/+/-} gcc
	cd gcc

	# link isl for in-tree build
	ln -s ../isl-${_islver} isl

	# Do not run fixincludes
	sed -i 's@\./fixinc\.sh@-c true@' gcc/Makefile.in

	# Arch Linux installs x86_64 libraries /lib
	[[ $CARCH == "x86_64" ]] && sed -i '/m64=/s/lib64/lib/' gcc/config/i386/t-linux64

	# Arch Linux ARM installs aarch64 libraries /lib
	[[ $CARCH == "aarch64" ]] && sed -i '/lp64=/s/lib64/lib/' gcc/config/aarch64/t-aarch64-linux

	# hack! - some configure tests for header files using "$CPP $CPPFLAGS"
	sed -i "/ac_cpp=/s/\$CPPFLAGS/\$CPPFLAGS -O2/" {libiberty,gcc}/configure

	# D hacks
	patch -p1 -i "$srcdir/gdc_phobos_path.patch"
	patch -p1 -i "$srcdir/gdc_artificial_decl.patch"
	patch -p1 -i "$srcdir/gdc_thunk_weak_ref.patch"
	#sed -i "/GDCFLAGSX=/s/-Wall/-shared-libphobos -Wall/" libphobos/configure

	# ALARM: Specify build host types, triplet patch
	[[ $CARCH == "arm" ]] && CONFIGFLAG="--host=armv5tel-unknown-linux-gnueabi --build=armv5tel-unknown-linux-gnueabi --with-arch=armv5te --with-float=soft"
	[[ $CARCH == "armv6h" ]] && CONFIGFLAG="--host=armv6l-unknown-linux-gnueabihf --build=armv6l-unknown-linux-gnueabihf --with-arch=armv6 --with-float=hard --with-fpu=vfp"
	[[ $CARCH == "armv7h" ]] && CONFIGFLAG="--host=armv7l-unknown-linux-gnueabihf --build=armv7l-unknown-linux-gnueabihf --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16"
	[[ $CARCH == "aarch64" ]] && CONFIGFLAG="--host=aarch64-unknown-linux-gnu --build=aarch64-unknown-linux-gnu --with-arch=armv8-a --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419"

	mkdir -p "$srcdir/gcc-build"

	# Disable LDRD/STRD on ARMv5 (64-bit alignment issues)
	patch -p1 -i ../0001-ARMv5-disable-LDRD-STRD.patch
	}

	build() {
	cd gcc-build

	# using -pipe causes spurious test-suite failures
	# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48565
	CFLAGS=${CFLAGS/-pipe/}
	CXXFLAGS=${CXXFLAGS/-pipe/}

	"$srcdir/gcc/configure" --prefix=/usr \
	--libdir=/usr/lib \
	--libexecdir=/usr/lib \
	--mandir=/usr/share/man \
	--infodir=/usr/share/info \
	--with-bugurl=https://github.com/archlinuxarm/PKGBUILDs/issues \
	--enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++,d \
	--enable-shared \
	--enable-threads=posix \
	--with-system-zlib \
	--with-isl \
	--enable-__cxa_atexit \
	--disable-libunwind-exceptions \
	--enable-clocale=gnu \
	--disable-libstdcxx-pch \
	--disable-libssp \
	--enable-gnu-unique-object \
	--enable-linker-build-id \
	--enable-lto \
	--enable-plugin \
	--enable-install-libiberty \
	--with-linker-hash-style=gnu \
	--enable-gnu-indirect-function \
	--disable-multilib \
	--disable-werror \
	--enable-checking=release \
	--enable-default-pie \
	--enable-default-ssp \
	$CONFIGFLAG \
	gdc_include_dir=/usr/include/dlang/gdc

	make

	# make documentation
	make -C $CHOST/libstdc++-v3/doc doc-man-doxygen
	}

	check() {
	cd gcc-build

	# disable libphobos test to avoid segfaults and other unfunny ways to waste my time
	sed -i '/maybe-check-target-libphobos \\/d' Makefile

	# do not abort on error as some are "expected"
	make -k check \|\| true
	"$srcdir/gcc/contrib/test_summary"
	}

	package_gcc-libs() {
	pkgdesc='Runtime libraries shipped by GCC'
	groups=(base)
	depends=('glibc>=2.27')
	options+=(!strip)
	provides=(libgo.so libgfortran.so libgphobos.so
	libubsan.so libasan.so liblsan.so)
	replaces=(libgphobos)
	if [[ $CARCH == "aarch64" ]]; then
	provides+=(libtsan.so)
	fi

	cd gcc-build
	make -C $CHOST/libgcc DESTDIR="$pkgdir" install-shared
	rm -f "$pkgdir/$_libdir/libgcc_eh.a"

	for lib in libatomic \
	libgfortran \
	libgo \
	libgomp \
	libitm \
	libquadmath \
	libsanitizer/{a,l,ub}san \
	libstdc++-v3/src \
	libvtv; do
	make -C $CHOST/$lib DESTDIR="$pkgdir" install-toolexeclibLTLIBRARIES
	done

	if [[ $CARCH == "x86_64" \|\| $CARCH == "aarch64" ]]; then
	make -C $CHOST/libsanitizer/tsan DESTDIR="$pkgdir" install-toolexeclibLTLIBRARIES
	fi

	make -C $CHOST/libobjc DESTDIR="$pkgdir" install-libs
	make -C $CHOST/libstdc++-v3/po DESTDIR="$pkgdir" install

	make -C $CHOST/libphobos DESTDIR="$pkgdir" install
	rm -rf "$pkgdir"/usr/lib/gcc/*/9.2.0/include/d/
	rm -f "$pkgdir"/usr/lib/libgphobos.spec

	for lib in libgomp \
	libitm \
	libquadmath; do
	make -C $CHOST/$lib DESTDIR="$pkgdir" install-info
	done

	# Install Runtime Library Exception
	install -Dm644 "$srcdir/gcc/COPYING.RUNTIME" \
	"$pkgdir/usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION"
	}

	package_gcc() {
	pkgdesc="The GNU Compiler Collection - C and C++ frontends"
	depends=("gcc-libs=$pkgver-$pkgrel" 'binutils>=2.28' libmpc)
	groups=('base-devel')
	options+=(staticlibs)

	cd gcc-build

	make -C gcc DESTDIR="$pkgdir" install-driver install-cpp install-gcc-ar \
	c++.install-common install-headers install-plugin install-lto-wrapper

	install -m755 -t "$pkgdir/usr/bin/" gcc/gcov{,-tool}
	install -m755 -t "$pkgdir/${_libdir}/" gcc/{cc1,cc1plus,collect2,lto1}

	make -C $CHOST/libgcc DESTDIR="$pkgdir" install
	rm -f "$pkgdir"/usr/lib/libgcc_s.so*

	make -C $CHOST/libstdc++-v3/src DESTDIR="$pkgdir" install
	make -C $CHOST/libstdc++-v3/include DESTDIR="$pkgdir" install
	make -C $CHOST/libstdc++-v3/libsupc++ DESTDIR="$pkgdir" install
	make -C $CHOST/libstdc++-v3/python DESTDIR="$pkgdir" install

	make DESTDIR="$pkgdir" install-libcc1
	install -d "$pkgdir/usr/share/gdb/auto-load/usr/lib"
	mv "$pkgdir"/usr/lib/libstdc++.so.6.*-gdb.py \
	"$pkgdir/usr/share/gdb/auto-load/usr/lib/"
	rm "$pkgdir"/usr/lib/libstdc++.so*

	make DESTDIR="$pkgdir" install-fixincludes
	make -C gcc DESTDIR="$pkgdir" install-mkheaders

	make -C lto-plugin DESTDIR="$pkgdir" install
	install -dm755 "$pkgdir"/usr/lib/bfd-plugins/
	ln -s /${_libdir}/liblto_plugin.so \
	"$pkgdir/usr/lib/bfd-plugins/"

	make -C $CHOST/libgomp DESTDIR="$pkgdir" install-nodist_{libsubinclude,toolexeclib}HEADERS
	make -C $CHOST/libitm DESTDIR="$pkgdir" install-nodist_toolexeclibHEADERS
	make -C $CHOST/libquadmath DESTDIR="$pkgdir" install-nodist_libsubincludeHEADERS
	make -C $CHOST/libsanitizer DESTDIR="$pkgdir" install-nodist_{saninclude,toolexeclib}HEADERS
	make -C $CHOST/libsanitizer/asan DESTDIR="$pkgdir" install-nodist_toolexeclibHEADERS
	if [[ $CARCH == "aarch64" ]]; then
	make -C $CHOST/libsanitizer/tsan DESTDIR="$pkgdir" install-nodist_toolexeclibHEADERS
	fi
	make -C $CHOST/libsanitizer/lsan DESTDIR="$pkgdir" install-nodist_toolexeclibHEADERS

	make -C libiberty DESTDIR="$pkgdir" install
	install -m644 libiberty/pic/libiberty.a "$pkgdir/usr/lib"

	make -C gcc DESTDIR="$pkgdir" install-man install-info
	rm "$pkgdir"/usr/share/man/man1/{gccgo,gfortran,gdc}.1
	rm "$pkgdir"/usr/share/info/{gccgo,gfortran,gnat-style,gnat_rm,gnat_ugn,gdc}.info

	make -C libcpp DESTDIR="$pkgdir" install
	make -C gcc DESTDIR="$pkgdir" install-po

	# many packages expect this symlink
	ln -s gcc "$pkgdir"/usr/bin/cc

	# POSIX conformance launcher scripts for c89 and c99
	install -Dm755 "$srcdir/c89" "$pkgdir/usr/bin/c89"
	install -Dm755 "$srcdir/c99" "$pkgdir/usr/bin/c99"

	# install the libstdc++ man pages
	make -C $CHOST/libstdc++-v3/doc DESTDIR="$pkgdir" doc-install-man

	# byte-compile python libraries
	python -m compileall "$pkgdir/usr/share/gcc-${pkgver%%+*}/"
	python -O -m compileall "$pkgdir/usr/share/gcc-${pkgver%%+*}/"

	# Install Runtime Library Exception
	install -d "$pkgdir/usr/share/licenses/$pkgname/"
	ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
	"$pkgdir/usr/share/licenses/$pkgname/"
	}

	package_gcc-fortran() {
	pkgdesc='Fortran front-end for GCC'
	depends=("gcc=$pkgver-$pkgrel")

	cd gcc-build
	make -C $CHOST/libgfortran DESTDIR="$pkgdir" install-cafexeclibLTLIBRARIES \
	install-{toolexeclibDATA,nodist_fincludeHEADERS,gfor_cHEADERS}
	make -C $CHOST/libgomp DESTDIR="$pkgdir" install-nodist_fincludeHEADERS
	make -C gcc DESTDIR="$pkgdir" fortran.install-{common,man,info}
	install -Dm755 gcc/f951 "$pkgdir/${_libdir}/f951"

	ln -s gfortran "$pkgdir/usr/bin/f95"

	# Install Runtime Library Exception
	install -d "$pkgdir/usr/share/licenses/$pkgname/"
	ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
	"$pkgdir/usr/share/licenses/$pkgname/"
	}

	package_gcc-objc() {
	pkgdesc='Objective-C front-end for GCC'
	depends=("gcc=$pkgver-$pkgrel")

	cd gcc-build
	make DESTDIR="$pkgdir" -C $CHOST/libobjc install-headers
	install -dm755 "$pkgdir/${_libdir}"
	install -m755 gcc/cc1obj{,plus} "$pkgdir/${_libdir}/"

	# Install Runtime Library Exception
	install -d "$pkgdir/usr/share/licenses/$pkgname/"
	ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
	"$pkgdir/usr/share/licenses/$pkgname/"
	}

	package_gcc-ada() {
	pkgdesc='Ada front-end for GCC (GNAT)'
	depends=("gcc=$pkgver-$pkgrel")
	options+=(staticlibs)

	cd gcc-build/gcc
	make DESTDIR="$pkgdir" ada.install-{common,info}
	install -m755 gnat1 "$pkgdir/${_libdir}"

	ln -s gcc "$pkgdir/usr/bin/gnatgcc"

	# insist on dynamic linking, but keep static libraries because gnatmake complains
	mv "$pkgdir"/${_libdir}/adalib/libgna{rl,t}-${_majorver}.so "$pkgdir/usr/lib"
	ln -s libgnarl-${_majorver}.so "$pkgdir/usr/lib/libgnarl.so"
	ln -s libgnat-${_majorver}.so "$pkgdir/usr/lib/libgnat.so"
	rm -f "$pkgdir"/${_libdir}/adalib/libgna{rl,t}.so

	# Install Runtime Library Exception
	install -d "$pkgdir/usr/share/licenses/$pkgname/"
	ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
	"$pkgdir/usr/share/licenses/$pkgname/"
	}

	package_gcc-go() {
	pkgdesc='Go front-end for GCC'
	depends=("gcc=$pkgver-$pkgrel")
	provides=("go=1.12.2")
	conflicts=(go)

	cd gcc-build
	make -C $CHOST/libgo DESTDIR="$pkgdir" install-exec-am
	make DESTDIR="$pkgdir" install-gotools
	make -C gcc DESTDIR="$pkgdir" go.install-{common,man,info}

	rm -f "$pkgdir"/usr/lib/libgo.so*
	install -Dm755 gcc/go1 "$pkgdir/${_libdir}/go1"

	# Install Runtime Library Exception
	install -d "$pkgdir/usr/share/licenses/$pkgname/"
	ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
	"$pkgdir/usr/share/licenses/$pkgname/"
	}

	package_gcc-d() {
	pkgdesc="D frontend for GCC"
	depends=("gcc=$pkgver-$pkgrel")
	provides=(gdc)
	replaces=(gdc)
	options=('staticlibs')

	cd gcc-build
	make -C gcc DESTDIR="$pkgdir" d.install-{common,man,info}

	install -Dm755 gcc/gdc "$pkgdir"/usr/bin/gdc
	install -Dm755 gcc/d21 "$pkgdir"/"$_libdir"/d21

	make -C $CHOST/libphobos DESTDIR="$pkgdir" install
	rm -f "$pkgdir/usr/lib/"lib{gphobos,gdruntime}.so*
	rm -f "$pkgdir/usr/lib32/"lib{gphobos,gdruntime}.so*

	install -d "$pkgdir"/usr/include/dlang
	ln -s /"${_libdir}"/include/d "$pkgdir"/usr/include/dlang/gdc

	# Install Runtime Library Exception
	install -d "$pkgdir/usr/share/licenses/$pkgname/"
	ln -s /usr/share/licenses/gcc-libs/RUNTIME.LIBRARY.EXCEPTION \
	"$pkgdir/usr/share/licenses/$pkgname/"
	}