# Contributor: John Proctor <jproctor@prium.net>
# Contributor: Daniel White <daniel@whitehouse.id.au>
# Maintainer: Juergen Hoetzel <juergen@archlinux.org>
# Contributor: Leslie Polzer (skypher)

# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
#  - disable sb-thread on 32-bit ARM: not supported
#  - enable sb-thread and largefile on AArch64
#  - remove hard-coded -march=armv5 CFLAGS

buildarch=12
highmem=1

pkgname=sbcl
pkgver=2.0.5
pkgrel=1
pkgdesc="Steel Bank Common Lisp"
url="http://www.sbcl.org/"
arch=('x86_64')
license=('custom')
depends=('zlib')
provides=('common-lisp' 'cl-asdf')
makedepends=('sbcl')
source=("https://downloads.sourceforge.net/project/sbcl/sbcl/$pkgver/$pkgname-$pkgver-source.tar.bz2"
  "arch-fixes.lisp")
sha256sums=('0050f88dd12893c90f03e7b6c3b998929dcd08e7bb0ca5c4003be6110337e2cb'
            'b5a6468dcbc1012cae2c3cda155762a37b6d96ef89bba4f723315063b0b5e7ce')

prepare() {
  cd "$srcdir/$pkgname-$pkgver"
  sed -i 's/-march=armv5//' src/runtime/Config.arm-linux
}

build() {
  cd "$srcdir/$pkgname-$pkgver"
  export CFLAGS+=" -D_GNU_SOURCE -fno-omit-frame-pointer -DSBCL_HOME=/usr/lib/sbcl"
  export GNUMAKE="make"

  # build system uses LINKFLAGS and OS_LIBS to build LDFLAGS
  export LINKFLAGS="$LDFLAGS"
  unset LDFLAGS
  unset MAKEFLAGS
  if [[ ${CARCH} = x86_64 || ${CARCH} = aarch64 ]]; then
    enable_disable_largefile=enable
  else
    enable_disable_largefile=disable
  fi
  if [[ ${CARCH} = aarch64 ]]; then
    enable_disable_thread=enable
  else
    enable_disable_thread=disable
  fi
  # Make a multi-threaded SBCL, disable LARGEFILE
  cat >customize-target-features.lisp <<EOF
(lambda (features)
  (flet ((enable (x) (pushnew x features))
         (disable (x) (setf features (remove x features))))
  (${enable_disable_thread} :sb-thread)
  (enable :sb-core-compression)
  (${enable_disable_largefile} :largefile)))
EOF

  sh make.sh sbcl --prefix=/usr
  make -C doc/manual info
}

package() {
  cd "$srcdir/$pkgname-$pkgver"

  # cannot have both SBCL_HOME and INSTALL_ROOT
  SBCL_HOME="" INSTALL_ROOT="$pkgdir/usr" sh install.sh

  src/runtime/sbcl --core output/sbcl.core --script "${srcdir}/arch-fixes.lisp"
  mv sbcl-new.core "${pkgdir}/usr/lib/sbcl/sbcl.core"

  # sources
  mkdir -p "$pkgdir/usr/share/sbcl-source"
  cp -R -t "$pkgdir/usr/share/sbcl-source" "$srcdir/$pkgname-$pkgver/"{src,contrib}

  # license
  install -D -m644 "$srcdir/$pkgname-$pkgver/COPYING" \
                   "$pkgdir/usr/share/licenses/$pkgname/license.txt"

  # drop unwanted files
  find "$pkgdir" \( -name Makefile -o -name .cvsignore \) -delete
  find "$pkgdir/usr/share/sbcl-source" -type f \
    \( -name \*.fasl -o -name \*.o -o -name \*.log -o -name \*.so -o -name a.out \) -delete

  rm "$pkgdir/usr/share/sbcl-source/src/runtime/sbcl"{,.nm}

}