# Description: OpenJDK 6, bootstrap build for building OpenJDK 7
# URL: http://openjdk.java.net/projects/jdk6
# Maintainer:
# Depends on: alsa-lib cups freetype giflib java-init krb5 libjpeg-turbo libpng libxslt nss xorg-libxcomposite xorg-libxinerama xorg-libxrender xorg-libxt xorg-libxtst wget

# TODO:
#  - https://git.launchpad.net/ubuntu/+source/openjdk-6/tree/debian/patches?h=applied/debian/experimental
#  - https://git.launchpad.net/ubuntu/+source/openjdk-6/tree/patches?h=applied/debian/experimental
# take what is useful, maybe a few of the gcc related patches etc

name=openjdk6-boot
version=20190705
openjdk_version=b41
openjdk_date=04_jan_2017
icedtea_version=1.13.13
release=1
source=(http://icedtea.wildebeest.org/download/source/icedtea6-$icedtea_version.tar.gz
  https://ponce.cc/slackware/sources/repo/openjdk-6-src-b41-04_jan_2017.tar.xz
  fix-sysctl-include.patch
  icedtea6-all-source-level-1_6.patch
  fix-freetype-version-detect.patch
  ld-symbolic-functions.diff
  pr2849.patch
  pr2808.patch
)

unpack_source() {
  for file in ${source[@]}; do
    case ${file##*/} in
        icedtea6-$icedtea_version.tar.gz)
        bsdtar -p -o -C $SRC -xf $(get_filename $file) ;;
      *)
        cp $(get_filename $file) $SRC ;;
    esac
  done
}

build() {
  # Most of these flags were snarfed directly from Alpine Linux APKBUILD for openjdk7, added -fabi-version.
  # Fixes build failures due to suspected gcc8 changes for default std and abi.
  export CXXFLAGS+=' -fabi-version=10 -std=gnu++98 -fno-delete-null-pointer-checks -fno-lifetime-dse -fno-strict-overflow -fcommon -fpermissive -Wmaybe-uninitialized'
  export CFLAGS+=' -fabi-version=10 -std=gnu++98 -Wno-error -fno-delete-null-pointer-checks -fno-lifetime-dse -fno-strict-overflow -fcommon -fpermissive -Wmaybe-uninitialized'
  export CPPFLAGS="$CFLAGS"
  #export LDFLAGS+=" -Xlinker -z -Xlinker defs -Wl,-Bsymbolic-functions"

  OLD_PATH=$PATH
  export JAVA_HOME=/opt/java-init
  export PATH=$JAVA_HOME/bin:$OLD_PATH

  # Fix ups for java-init tools, which don't handle ambiguity well.
  for i in icedtea6-all-source-level-1_6.patch fix-freetype-version-detect.patch fix-sysctl-include.patch; do
    cp -v $SRC/${i} $SRC/icedtea6-$icedtea_version/patches/.
  done
  #patches/linker-libs-order.patch patches/linker-libs-order-zlib.patch patches/gcc-no-hardening.diff patches/gcc-opt-O2.diff
  export DISTRIBUTION_PATCHES="patches/icedtea6-all-source-level-1_6.patch patches/fix-freetype-version-detect.patch patches/fix-sysctl-include.patch"

  #patch -Np1 -d icedtea6-$icedtea_version -i $SRC/pr2849.patch
  #patch -Np1 -d icedtea6-$icedtea_version -i $SRC/pr2808.patch

  #cd icedtea6-$icedtea_version
  #autoreconf -fvi
  #cd $SRC

  mkdir $SRC/build-boot
  cd $SRC/build-boot

  LC_ALL=C \
  ALT_UNIXCOMMAND_PATH="" \
  JAVAC=$JAVA_HOME/bin/ecj \
  CONFIG_SHELL=/bin/bash \
  ../icedtea6-$icedtea_version/configure \
    --prefix=$SRC/build-boot/openjdk.build/j2sdk-image \
    --enable-system-kerberos \
    --enable-system-gif \
    --enable-system-jpeg \
    --enable-system-png \
    --enable-system-zlib \
    --disable-nss \
    --with-openjdk-src-zip=$SRC/openjdk-6-src-b41-04_jan_2017.tar.xz \
    --with-pkgversion=CRUX \
    --with-jdk-home=$JAVA_HOME \
    --with-ant-home=$JAVA_HOME/lib/ant \
    --with-abs-install-dir=/$name \
    --with-ecj-jar=$JAVA_HOME/share/java/ecj.jar \
    --with-jar=/usr/bin/fastjar \
    --with-java=$JAVA_HOME/bin/jamvm \
    --with-javah=$JAVA_HOME/bin/javah \
    --with-rmic=$JAVA_HOME/bin/rmic \
    --disable-docs \
    --disable-downloading \
    --disable-xrender \
    --disable-lcms2 \
    --disable-systemtap \
    --disable-tests \
    --disable-hotspot-tests \
    --disable-langtools-tests \
    --disable-jdk-tests \
    --without-rhino \
    --with-ecj \
    --without-gcj

  LC_ALL=C \
    ALT_UNIXCOMMAND_PATH="" \
    DISABLE_HOTSPOT_OS_VERSION_CHECK="ok" \
    make || echo "First make failed"

  # rebuild using our fresh openjdk6
  unset JAVA_HOME
  export JAVA_HOME=$SRC/build-boot/openjdk.build/j2sdk-image
  export PATH=$JAVA_HOME/bin:/opt/java-init/lib/ant/bin:$OLD_PATH

  mkdir $SRC/build
  cd $SRC/build

  LC_ALL=C \
  ALT_UNIXCOMMAND_PATH="" \
  CONFIG_SHELL=/bin/bash \
  ../icedtea6-$icedtea_version/configure \
    --prefix=/$name \
    --disable-docs \
    --disable-downloading \
    --disable-systemtap \
    --disable-tests \
    --disable-hotspot-tests \
    --disable-langtools-tests \
    --disable-jdk-tests \
    --disable-xrender \
    --enable-system-gif \
    --enable-system-jpeg \
    --enable-system-kerberos \
    --disable-lcms2 \
    --enable-system-png \
    --enable-system-zlib \
    --enable-nss \
    --enable-non-nss-curves \
    --with-openjdk-src-zip=$SRC/openjdk-6-src-$openjdk_version-$openjdk_date.tar.xz \
    --with-pkgversion=CRUX \
    --without-rhino \
    --with-javac \
    --with-jdk-home=$JAVA_HOME \
    --with-ant-home=/opt/java-init/lib/ant \
    --with-abs-install-dir=/$name

  LC_ALL=C \
  ALT_UNIXCOMMAND_PATH="" \
  DISABLE_HOTSPOT_OS_VERSION_CHECK="ok" \
  make || echo "Second make failed"

  # Copy the sdk image first before pruning it, saving original for later inspection/comparison.
  mkdir -p $PKG/$name
  cp -a openjdk.build/j2sdk-image/* $PKG/$name

  # Remove unneeded files
  rm -f $PKG/$name/src.zip
  rm -rf $PKG/$name/{demo,man,sample,jre/lib/{images,zi}}
  find $PKG/$name \( \
    -name '*.ja' -o \
    -name '*.txt' -o \
    -name '*.old' -o \
    -name '*.properties' -o \
    -name '*.template' -o \
    -name 'fontconfig.*' -o \
    -name 'ASSEMBLY_EXCEPTION' -o \
    -name 'LICENSE' \) \
    -delete

  # Deduplicate
  rm $PKG/$name/jre/lib/amd64/jli/libjli.so
  ln -sr $PKG/$name/lib/amd64/jli/libjli.so \
    $PKG/$name/jre/lib/amd64/jli/libjli.so
  for f in $PKG/$name/jre/bin/* ; do
    if [ -f $PKG/$name/bin/${f##*/} ]; then
      rm $f
      ln -sr $PKG/$name/bin/${f##*/} $f
    fi
  done

  # Link to CRUX ca-certificates
  rm -f $PKG/$name/jre/lib/security/cacerts
  ln -s /etc/ssl/cert.pem $PKG/$name/jre/lib/security/cacerts

  rm $PKG/$name/{,jre/}THIRD_PARTY_README
}