# $Id$
# Maintainer:  Bartłomiej Piotrowski <bpiotrowski@archlinux.org>
# Contributor: Allan McRae <allan@archlinux.org>

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

# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
#  - Specify our build host type
#  - Disabled distcc
#  - Strip out Arch x86 multilib

noautobuild=1

pkgname=glibc
pkgver=2.26
pkgrel=11
arch=(x86_64)
url='http://www.gnu.org/software/libc'
license=(GPL LGPL)
makedepends=(git gd)
options=(!strip staticlibs !distcc)
_commit=de51f431ed6226ec68ca76e578f2cbd55b6262cb
source=(git://sourceware.org/git/glibc.git#commit=${_commit}
        locale.gen.txt
        locale-gen
        bz20338.patch)
md5sums=('SKIP'
         '07ac979b6ab5eeb778d55f041529d623'
         '476e9113489f93b348b21e144b6a8fcf'
         'dc0d3ad59aeaaf591b085a77de6e03e9')

prepare() {
  mkdir -p glibc-build

  cd glibc

  local i; for i in ${source[@]}; do
    case ${i%::*} in
      *.patch)
        msg2 "Applying ${i}"
        patch -p1 -i "$srcdir/${i}"
        ;;
    esac
  done
}

build() {
  local _configure_flags=(
      --prefix=/usr
      --with-headers=/usr/include
      --with-bugurl=https://github.com/archlinuxarm/PKGBUILDs/issues
      --enable-add-ons
      --enable-bind-now
      --enable-lock-elision
      --disable-multi-arch
      --enable-obsolete-nsl
      --enable-obsolete-rpc
      --enable-stack-protector=strong
      --enable-stackguard-randomization
      --disable-profile
      --disable-werror
  )

  cd "$srcdir/glibc-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"
  [[ $CARCH == "armv7h" ]] && CONFIGFLAG="--host=armv7l-unknown-linux-gnueabihf --build=armv7l-unknown-linux-gnueabihf"
  [[ $CARCH == "aarch64" ]] && CONFIGFLAG="--host=aarch64-unknown-linux-gnu --build=aarch64-unknown-linux-gnu"

  echo "slibdir=/usr/lib" >> configparms
  echo "rtlddir=/usr/lib" >> configparms
  echo "sbindir=/usr/bin" >> configparms
  echo "rootsbindir=/usr/bin" >> configparms

  # remove fortify for building libraries
  CPPFLAGS=${CPPFLAGS/-D_FORTIFY_SOURCE=2/}

  "$srcdir/glibc/configure" \
      --libdir=/usr/lib \
      --libexecdir=/usr/lib \
      ${_configure_flags[@]} \
      $CONFIGFLAG

  # build libraries with fortify disabled
  echo "build-programs=no" >> configparms
  make

  # re-enable fortify for programs
  sed -i "/build-programs=/s#no#yes#" configparms

  echo "CC += -D_FORTIFY_SOURCE=2" >> configparms
  echo "CXX += -D_FORTIFY_SOURCE=2" >> configparms
  make
}

check() {
  cd glibc-build

  # remove fortify in preparation to run test-suite
  sed -i '/FORTIFY/d' configparms

  # some failures are "expected"
  make check || true
}

package() {
  pkgdesc='GNU C Library'
  depends=('linux-api-headers>=4.10' tzdata filesystem)
  optdepends=('gd: for memusagestat')
  install=glibc.install
  backup=(etc/gai.conf
          etc/locale.gen
          etc/nscd.conf)
  groups=(base)

  install -dm755 "$pkgdir/etc"
  touch "$pkgdir/etc/ld.so.conf"

  make -C glibc-build install_root="$pkgdir" install
  rm -f "$pkgdir"/etc/ld.so.{cache,conf}

  cd glibc

  install -dm755 "$pkgdir"/usr/lib/{locale,systemd/system,tmpfiles.d}
  install -m644 nscd/nscd.conf "$pkgdir/etc/nscd.conf"
  install -m644 nscd/nscd.service "$pkgdir/usr/lib/systemd/system"
  install -m644 nscd/nscd.tmpfiles "$pkgdir/usr/lib/tmpfiles.d/nscd.conf"
  install -dm755 "$pkgdir/var/db/nscd"

  install -m644 posix/gai.conf "$pkgdir"/etc/gai.conf

  install -m755 "$srcdir/locale-gen" "$pkgdir/usr/bin"

  # create /etc/locale.gen
  install -m644 "$srcdir/locale.gen.txt" "$pkgdir/etc/locale.gen"
  sed -e '1,3d' -e 's|/| |g' -e 's|\\| |g' -e 's|^|#|g' \
    "$srcdir/glibc/localedata/SUPPORTED" >> "$pkgdir/etc/locale.gen"

  # ALARM: symlink ld-linux.so.3 for hard-float
  [[ $CARCH == "armv6h" || $CARCH == "armv7h" ]] && ln -s /lib/ld-${pkgver}.so ${pkgdir}/usr/lib/ld-linux.so.3

  # Do not strip the following files for improved debugging support
  # ("improved" as in not breaking gdb and valgrind...):
  #   ld-${pkgver}.so
  #   libc-${pkgver}.so
  #   libpthread-${pkgver}.so
  #   libthread_db-1.0.so

  cd "$pkgdir"
  strip $STRIP_BINARIES usr/bin/{gencat,getconf,getent,iconv,iconvconfig} \
                        usr/bin/{ldconfig,locale,localedef,nscd,makedb} \
                        usr/bin/{pcprofiledump,pldd,rpcgen,sln,sprof} \
                        usr/lib/getconf/*

  strip $STRIP_STATIC usr/lib/lib{anl,BrokenLocale,c{,_nonshared},crypt}.a \
                      usr/lib/lib{dl,g,ieee,mcheck,nsl,pthread{,_nonshared}}.a \
                      usr/lib/lib{resolv,rpcsvc,rt,util}.a

  strip $STRIP_SHARED usr/lib/lib{anl,BrokenLocale,cidn,crypt}-${pkgver}.so \
                      usr/lib/libnss_{compat,db,dns,files,hesiod,nis,nisplus}-*.so \
                      usr/lib/lib{dl,m,nsl,resolv,rt,util}-${pkgver}.so \
                      usr/lib/lib{memusage,pcprofile,SegFault}.so \
                      usr/lib/{audit,gconv}/*.so || true
}