# Maintainer: Mihails Strasuns <public@dicebot.lv>
# Contributor: Moritz Maxeiner <moritz@ucworks.org>
# Contributor: Jerome Berger <jeberger@free.fr>
# Contributor: Jesus Alvarez <jeezusjr@gmail.com>
# Contributor: Allan McRae <allan@archlinux.org>

# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
#  - use GitHub gcc mirror commit archive (order of magnitude size difference)
#  - --disable-libmpx

# ALARM: Johannes Pfau <johannespfau@gmail.com>
#  - specifid build host
#  - replaced bugurl with our GitHub issue page

pkgname=('gdc' 'libgphobos-devel')
pkgver=6.1.1
pkgrel=1
_pkgver=6
_islver=0.16.1
_commit=80f78834
arch=('i686' 'x86_64')
license=('GPL')
url="https://github.com/D-Programming-GDC/GDC"
makedepends=('binutils>=2.26' 'git' 'gcc' 'make' 'perl' 'automake')
options=('!emptydirs' '!buildflags')
groups=('dlang' 'dlang-gdc')
conflicts=('gdc1-bin' 'gdc1-hg' 'gdc-git')
source=(
    https://github.com/gcc-mirror/gcc/archive/${_commit}.tar.gz
    http://isl.gforge.inria.fr/isl-${_islver}.tar.bz2
    gdc::git://github.com/D-Programming-GDC/GDC.git#commit=73a7fb5d4e75c0e1a4ee7cdb67d080cceb8ff955
    git+https://github.com/D-Programming-GDC/GDMD.git
    folders.diff
    system_zlib.diff
)
sha256sums=('aaefafea139d07e802214fb37b5aec2ae96baf323b528b4f4b84294629e4a874'
            '412538bb65c799ac98e17e8cfcdacbb257a57362acfaaff254b0fcae970126d2'
            'SKIP'
            'SKIP'
            'ea5c80a28026393bd4627485602660a4a01d9fbc65299e95e768013e197bad20'
            '3c818788b5435794c37e5d3d131fe74c813368a3b7260f85fb2cd725308e4889')

# gcc-6.0 forces a changed triplet - need to address in pacman/devtools
[[ $CARCH == "x86_64" ]] && CHOST=x86_64-pc-linux-gnu

prepare() {
  mv gcc-${_commit}* gcc
  cd ${srcdir}/gcc

  # link isl for in-tree build
  ln -sf ../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

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

  cd $srcdir/gdc
  git apply $srcdir/folders.diff # fix gdc_include_path
  git apply $srcdir/system_zlib.diff # use correct system zlib
  ./setup-gcc.sh ../gcc

  mkdir ${srcdir}/gcc-build
}

build() {
  cd ${srcdir}/gcc-build

  # ALARM: Specify build host types
  [[ $CARCH == "arm" ]] && CONFIGFLAG="--host=armv5tel-unknown-linux-gnueabi --build=armv5tel-unknown-linux-gnueabi"
  [[ $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"

  # 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://archlinuxarm.org/forum \
      --enable-languages=d \
      --enable-shared --enable-threads=posix --disable-libmpx \
      --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 $CONFIGFLAG

  make -j 4
}

package_gdc()
{
    depends=('gcc' 'perl' 'binutils' 'libgphobos-devel')
    provides=("d-compiler")
    pkgdesc="Compiler for D programming language which uses gcc backend"
 
    install -D -m755 $srcdir/gcc-build/gcc/gdc $pkgdir/usr/bin/gdc
    install -D -m755 $srcdir/gcc-build/gcc/cc1d $pkgdir/usr/lib/gcc/$CHOST/$pkgver/cc1d

    # tools
    install -D -m755 $srcdir/GDMD/dmd-script $pkgdir/usr/bin/gdmd
    install -D -m644 $srcdir/GDMD/dmd-script.1 $pkgdir/usr/share/man/man1/gdmd.1
}

package_libgphobos-devel()
{
    pkgdesc="Standard library for D programming language, GDC port"
    provides=("d-runtime" "d-stdlib")
    options=("staticlibs")

    # druntime
    install -D $srcdir/gdc/libphobos/libdruntime/object.d $pkgdir/usr/include/dlang/gdc/object.d
    install -D $srcdir/gdc/libphobos/libdruntime/__entrypoint.di ${pkgdir}/usr/include/dlang/gdc/__entrypoint.di
    cp -r $srcdir/gdc/libphobos/libdruntime/core $pkgdir/usr/include/dlang/gdc/core
    cp -r $srcdir/gdc/libphobos/libdruntime/gcc $pkgdir/usr/include/dlang/gdc/gcc

    # workaround for auto-generated libbacktrace issue
	# script needs to be re-written to first call normal gcc instalaltion targets to
	# avoid such problems in future
	cp $srcdir/gcc-build/$CHOST/libphobos/libdruntime/gcc/libbacktrace.d $pkgdir/usr/include/dlang/gdc/gcc/
	rm $pkgdir/usr/include/dlang/gdc/gcc/libbacktrace.d.in

    # phobos
    # cp $srcdir/gdc/libphobos/src/crc32.d ${pkgdir}/usr/include/dlang/gdc/
    cp -r $srcdir/gdc/libphobos/src/std ${pkgdir}/usr/include/dlang/gdc/std
    cp -r $srcdir/gdc/libphobos/src/etc ${pkgdir}/usr/include/dlang/gdc/etc

    install -D -m644 $srcdir/gcc-build/$CHOST/libphobos/src/libgphobos2.a $pkgdir/usr/lib/libgphobos2.a
}