#!/bin/sh
# $Id$
# Copyright 2020, 2021, 2023  Eric Hameleers, Eindhoven, NL
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
#   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
#   IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
#   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
#   OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#   SUCH DAMAGE.
# -----------------------------------------------------------------------------
#
# This script pays hommage to the work of Tk-Glitch <ti3nou at gmail dot com>
# who is the author of '(Mostly) Portable GCC/MinGW', this SlackBuild is an
# adapted version of his work, adding support for a 32bit OS.
# For more info, see the git homepage at:
#   https://github.com/Frogging-Family/mostlyportable-gcc
#
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:          Eric Hameleers <alien@slackware.com>
# For:         MinGW-w64
# Descr:       Mininalist GCC to compile Windows binaries
# URL:         http://mingw-w64.org/doku.php
# Build needs: 
# Needs:       
# Changelog:   
# 7.0.0_gcc9.3.0-1:
#              21/Sep/2020 by Eric Hameleers <alien@slackware.com>
#              * Initial build.
# 8.0.0_gcc10.2.0-1:
#              10/dec/2020 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 9.0.0_gcc11.2.0-1:
#              22/dec/2021 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 10.0.0_gcc12.2.0-1:
#              17/apr/2023 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 
# Run 'sh MinGW-w64.SlackBuild' to build a Slackware package.
# The package (.t?z) and .txt file as well as build logs are created in /tmp .
# Install the package using 'installpkg' or 'upgradepkg --install-new'.
#
# -----------------------------------------------------------------------------

PRGNAM=MinGW-w64
BUILD=${BUILD:-1}
NUMJOBS=${NUMJOBS:-" -j$(nproc) "}
TAG=${TAG:-alien}

BINUTILS_DOCS="COPYING* ChangeLog.linux MAI* README*"
GCC_DOCS="COPYING* ChangeLog* INSTALL LAST_UPDATED MAINTAINERS \
  NEWS README*"
MINGW_DOCS="AUTHORS COPYING* DISCLAIMER*"

# Core tools:
BINUTILS=2.40
GCC=12.2.0
MINGW=v10.0.0

# Package version:
VERSION=${VERSION:-${MINGW}_gcc${GCC}}

# Support tools:
GMP=6.2.1
MPFR=4.2.0
MPC=1.3.1
OSL=0.9.5
ISL=0.26
CLOOG=0.20.0

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) readelf /usr/bin/file -A | egrep -q "Tag_CPU.*[4,5]" && ARCH=arm || ARCH=armv7hl ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi
# Set CFLAGS/CXXFLAGS and LIBDIRSUFFIX:
case "$ARCH" in
  i?86)      SLKCFLAGS="-O2 -march=${ARCH} -mtune=i686"
             SLKLDFLAGS="-L/usr/lib"; LIBDIRSUFFIX=""
             MINGW_TARGETS="${ARCH}-w64-mingw32"
             ;;
  x86_64)    SLKCFLAGS="-O2 -fPIC"
             SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
             MINGW_TARGETS="i686-w64-mingw32 x86_64-w64-mingw32"
             ;;
  *)         SLKCFLAGS=${SLKCFLAGS:-"-O2"}
             SLKLDFLAGS=${SLKLDFLAGS:-""}; LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
             MINGW_TARGETS="${ARCH}-w64-mingw32"
             ;;
esac
TARGET=${ARCH}-slackware-linux

# You can chose to use the system gcc instead of compiling it to save some time:
BUILD_GCC=${BUILD_GCC:-"YES"}

# Tool capabilities:
GCC_EXCEPTIONS="dwarf2"
GCC_LANGUAGES="c,c++,lto"
MINGW_LANGUAGES="c,c++,lto,objc,obj-c++"
WIN32_THREADS="false"

if [ "$ARCH" == "x86_64" ]; then
  BINUTILS_TARGETS="x86_64-pep"
  GCC_MULTI_ARCH="\
    --with-arch-32=i686 \
    --with-abi=m64 \
    --with-multilib-list=m32,m64 \
    --enable-multilib \
    --enable-multiarch \
    --enable-default-pie"
else
  BINUTILS_TARGETS="i386-efi-pe"
  GCC_MULTI_ARCH="\
    --with-arch=i586"
fi

# Arguments for the MinGW gcc compilation:
if [ "$GCC_EXCEPTIONS" == "dwarf2" ]; then
  EXCEPTIONS_ARGS="--disable-sjlj-exceptions --with-dwarf2"
else
  EXCEPTIONS_ARGS="--disable-dw2-exceptions"
fi
if [ "$WIN32_THREADS" == "true" ]; then
  WIN32THREADS_ARGS="--enable-threads=win32"
else
  WIN32THREADS_ARGS="--enable-threads=posix"
fi

# Where do we look for sources?
SRCDIR=$(cd $(dirname $0); pwd)

# Place to build (TMP) package (PKG) and output (OUTPUT) the program:
# Note: OUTPUT should *not* be a subdirectory of TMP!
TMP=${TMP:-/tmp/build}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# Where will our bootstrap gcc be installed:
GCC_BOOTSTRAP_PATH="${TMP}/mingw_gcc_bootstrap"

# Where will MinGW be installed:
MINGW_OUTPUT_PATH="${PKG}/usr/mingw-w64-$VERSION"

# If you want automatic download to work, supply a URL for 'SRCURL' below:
SOURCE[0]="$SRCDIR/sources/mingw-w64-${MINGW}.tar.bz2"
SRCURL[0]="https://sourceforge.net/projects/mingw-w64/files/mingw-w64/mingw-w64-release/mingw-w64-${MINGW}.tar.bz2"

# Source tarballs and download locations:
mkdir -p $SRCDIR/sources

SOURCE[1]="$SRCDIR/sources/gcc-${GCC}.tar.xz"
SRCURL[1]="ftp://ftp.gnu.org/gnu/gcc/gcc-${GCC}/gcc-${GCC}.tar.xz"

SOURCE[2]="$SRCDIR/sources/binutils-${BINUTILS}.tar.gz"
SRCURL[2]="https://ftp.gnu.org/gnu/binutils/binutils-${BINUTILS}.tar.gz"

SOURCE[3]="$SRCDIR/sources/gmp-${GMP}.tar.xz"
SRCURL[3]="https://ftp.gnu.org/gnu/gmp/gmp-${GMP}.tar.xz"

SOURCE[4]="$SRCDIR/sources/mpfr-${MPFR}.tar.xz"
SRCURL[4]="https://ftp.gnu.org/gnu/mpfr/mpfr-${MPFR}.tar.xz"

SOURCE[5]="$SRCDIR/sources/mpc-${MPC}.tar.gz"
SRCURL[5]="https://ftp.gnu.org/gnu/mpc/mpc-${MPC}.tar.gz"

SOURCE[6]="$SRCDIR/sources/isl-${ISL}.tar.xz"
SRCURL[6]="https://libisl.sourceforge.io/isl-${ISL}.tar.xz"

SOURCE[7]="$SRCDIR/sources/osl-${OSL}.tar.gz"
SRCURL[7]="https://github.com/periscop/openscop/releases/download/${OSL}/osl-${OSL}.tar.gz"

SOURCE[8]="$SRCDIR/sources/cloog-${CLOOG}.tar.gz"
SRCURL[8]="https://github.com/periscop/cloog/releases/download/cloog-${CLOOG}/cloog-${CLOOG}.tar.gz"

##
## --- with a little luck, you won't have to edit below this point --- ##
##

# Exit the script on errors:
set -e
trap 'echo "$0 FAILED at line ${LINENO}" | tee $OUTPUT/error-${PRGNAM}.log' ERR
# Catch unitialized variables:
set -u
P1=${1:-1}

# Save old umask and set to 0022:
_UMASK_=$(umask)
umask 0022

# Create working directories:
mkdir -p $OUTPUT           # place for the package to be saved
mkdir -p $TMP/tmp-$PRGNAM  # location to build the source
mkdir -p $PKG              # place for the package to be built
rm -rf $PKG/*              # always erase old package's contents
rm -rf $TMP/tmp-$PRGNAM/*  # remove the remnants of previous build
rm -rf $OUTPUT/{configure,make,install,error,makepkg,patch}-$PRGNAM.log
                           # remove old log files
rm -rf $GCC_BOOTSTRAP_PATH # Remove other files created outside of $PKG

# Source file availability:
for (( i = 0; i < ${#SOURCE[*]}; i++ )) ; do
  if ! [ -f ${SOURCE[$i]} ]; then
    echo "Source '$(basename ${SOURCE[$i]})' not available yet..."
    # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
    [ -w "$SRCDIR" ] || SOURCE[$i]="$OUTPUT/$(basename ${SOURCE[$i]})"
    if [ -f ${SOURCE[$i]} ]; then echo "Ah, found it!"; continue; fi
    if ! [ "x${SRCURL[$i]}" == "x" ]; then
      echo "Will download file to $(dirname $SOURCE[$i])"
      wget --no-check-certificate -nv -T 20 -O "${SOURCE[$i]}" ${SRCURL[$i]} || true
      if [ $? -ne 0 -o ! -s "${SOURCE[$i]}" ]; then
        echo "Fail to download '$(basename ${SOURCE[$i]})'. Aborting the build."
        mv -f "${SOURCE[$i]}" "${SOURCE[$i]}".FAIL
        exit 1
      fi
    fi
    if [ ! -f "${SOURCE[$i]}" -o ! -s "${SOURCE[$i]}" ]; then
      echo "File '$(basename ${SOURCE[$i]})' not available. Aborting the build."
      exit 1
    fi
  fi
done

if [ "$P1" == "--download" ]; then
  echo "Download complete."
  exit 0
fi

# --- PACKAGE BUILDING ---

echo "++"
echo "|| $PRGNAM-$VERSION"
echo "++"

echo Building ...
export LDFLAGS="$SLKLDFLAGS"
export CXXFLAGS="$SLKCFLAGS"
export CFLAGS="$SLKCFLAGS"
export CPPFLAGS="$SLKCFLAGS"

# Used in all compilations:
COMMONCONFIG="--disable-shared --enable-static"

# Build the supporting tools first, then build a custom gcc for our platform
# and then build mingw-w64 binaries using our support tools and custom gcc:

function build_support_tools() {
  MY_DESTDIR="${1}"
  MY_ARCH="${2:-""}"

  [ -z "$MY_ARCH" ] && BUILD_ARGS="" || BUILD_ARGS="--build=$MY_ARCH"

  # gmp:
  echo "-- gmp --"
  cd $TMP/tmp-$PRGNAM/gmp-${GMP}
  ./configure \
    --prefix=${MY_DESTDIR} \
    ${COMMONCONFIG} \
    ${BUILD_ARGS}
  make ${NUMJOBS} || make || exit 1
  make install || exit 1

  # mpfr:
  echo "-- mpfr --"
  cd $TMP/tmp-$PRGNAM/mpfr-${MPFR}
  ./configure \
    --prefix=${MY_DESTDIR} \
    --with-gmp=${MY_DESTDIR} \
    ${COMMONCONFIG} \
    ${BUILD_ARGS}
  make ${NUMJOBS} || make || exit 1
  make install || exit 1

  # mpc:
  echo "-- mpc --"
  cd $TMP/tmp-$PRGNAM/mpc-${MPC}
  ./configure \
    --prefix=${MY_DESTDIR} \
    --with-gmp=${MY_DESTDIR} \
    --with-mpfr=${MY_DESTDIR} \
    ${COMMONCONFIG} \
    ${BUILD_ARGS}
  make ${NUMJOBS} || make || exit 1
  make install || exit 1

  # isl:
  echo "-- isl --"
  cd $TMP/tmp-$PRGNAM/isl-${ISL}
  ./configure \
    --prefix=${MY_DESTDIR} \
    ${COMMONCONFIG} \
    ${BUILD_ARGS}
  make ${NUMJOBS} || make || exit 1
  make install || exit 1

} # end build_support_tools

function build_support_tools_mingw() {
  MY_DESTDIR=${1}

  # osl:
  echo "-- osl --"
  cd $TMP/tmp-$PRGNAM/osl-${OSL}
  ./configure \
    --prefix=${MY_DESTDIR} \
    --with-gmp=${MY_DESTDIR} \
    ${COMMONCONFIG}
  make ${NUMJOBS} || make || exit 1
  make install || exit 1

  # cloog:
  echo "-- cloog --"
  cd $TMP/tmp-$PRGNAM/cloog-${CLOOG}
  ./configure \
    --prefix=${MY_DESTDIR} \
    --with-isl=${MY_DESTDIR} \
    --with-osl=${MY_DESTDIR} \
    ${COMMONCONFIG}
  make ${NUMJOBS} || make || exit 1
  # Issues with parallism in installing docs:
  make -i install

} # end build_support_tools_mingw

function untar_and_patch() {
  cd $TMP/tmp-$PRGNAM || exit 1
  rm -rf *
  echo "[MINGW] Extracting the source archive(s) for $PRGNAM..."
  for (( i = 0; i < ${#SOURCE[*]}; i++ )) ; do
    tar -xf ${SOURCE[$i]}
  done

  # Fix errors in compilation:
  cd gcc-${GCC}
   cat $SRCDIR/patches/0020-libgomp-Don-t-hard-code-MS-printf-attributes.patch \
     | patch -p1 --verbose || exit 1
   sed -i libbacktrace/configure -e 's|\-Werror||g' || exit 1
  cd ..

  chown -R root:root *
  chmod -R u+w,go+r-w,a+rX-st *
} # end untar_and_patch

if [ "$BUILD_GCC" == "YES" ]; then
#
# --- GCC ---
#

# We extract the sources twice (and remove them inbetween),
# to build native GCC and MinGW in two separate stages:
untar_and_patch || exit 1

cd $TMP/tmp-$PRGNAM || exit 1

# Make the process use our tools as they get built:
export PATH="${GCC_BOOTSTRAP_PATH}/bin:${GCC_BOOTSTRAP_PATH}/lib:${GCC_BOOTSTRAP_PATH}/include:${PATH}"

# Build the support tools:
build_support_tools ${GCC_BOOTSTRAP_PATH} ${TARGET}

# binutils:
echo "-- binutils --"
mkdir -p $TMP/tmp-$PRGNAM/binutils-build && cd $TMP/tmp-$PRGNAM/binutils-build
$TMP/tmp-$PRGNAM/binutils-${BINUTILS}/configure \
  --prefix=${GCC_BOOTSTRAP_PATH} \
  --with-lib-path="${GCC_BOOTSTRAP_PATH}/lib" \
  --enable-deterministic-archives \
  --enable-gold \
  --enable-ld=default \
  --enable-lto \
  --enable-plugins \
  --enable-relro \
  --enable-targets=${BINUTILS_TARGETS} \
  --enable-threads \
  --disable-gdb \
  --disable-werror \
  --with-pic \
  --with-system-zlib \
  ${COMMONCONFIG}
make ${NUMJOBS} configure-host || exit 1
make ${NUMJOBS} tooldir=${GCC_BOOTSTRAP_PATH} || exit 1
make install prefix=${GCC_BOOTSTRAP_PATH} tooldir=${GCC_BOOTSTRAP_PATH} || exit 1
# Remove unwanted files:
rm -f ${GCC_BOOTSTRAP_PATH}/share/man/man1/{dlltool,nlmconv,windres,windmc}*

if [ "$ARCH" != "x86_64" ]; then
  # Use the output of '${GCC_BOOTSTRAP_PATH}/bin/ld --verbose | grep SEARCH_DIR'
  # to see that this ld looks in a not-existing location, which we'll exploit.
  ln -s /usr ${GCC_BOOTSTRAP_PATH}/i686-pc-linux-gnu
fi

# gcc:
echo "-- gcc --"
mkdir -p $TMP/tmp-$PRGNAM/gcc-build && cd $TMP/tmp-$PRGNAM/gcc-build
LDFLAGS="$LDFLAGS" \
LD="${GCC_BOOTSTRAP_PATH}/bin/ld" \
AR="${GCC_BOOTSTRAP_PATH}/bin/ar" \
$TMP/tmp-$PRGNAM/gcc-${GCC}/configure \
  ${GCC_MULTI_ARCH} \
  --prefix=${GCC_BOOTSTRAP_PATH} \
  --with-pkgversion='alienBOB' \
  --with-build-sysroot='/' \
  --enable-languages=${GCC_LANGUAGES} \
  --disable-bootstrap \
  --with-gcc-major-version-only \
  --enable-linker-build-id \
  --disable-libstdcxx-pch \
  --without-included-gettext \
  --enable-libgomp \
  --enable-lto \
  --enable-threads=posix \
  --enable-tls \
  --enable-nls \
  --enable-clocale=gnu \
  --enable-libstdcxx-time=yes \
  --with-default-libstdcxx-abi=new \
  --enable-gnu-unique-object \
  --disable-vtable-verify \
  --enable-plugin \
  --with-target-system-zlib=auto \
  --with-system-zlib \
  --disable-werror \
  --enable-checking=release \
  --with-fpmath=sse \
  --with-tune=generic \
  --without-cuda-driver \
  --with-isl=${GCC_BOOTSTRAP_PATH} \
  --with-gmp=${GCC_BOOTSTRAP_PATH} \
  --with-mpfr=${GCC_BOOTSTRAP_PATH} \
  --with-mpc=${GCC_BOOTSTRAP_PATH} \
  --enable-offload-targets=nvptx-none,amdgcn \
  --build=${TARGET} \
  --host=${TARGET} \
  --target=${TARGET} \
  || exit 1


make ${NUMJOBS} || make || exit 1
make install || exit 1
ln -s gcc ${GCC_BOOTSTRAP_PATH}/bin/cc

#libgcc:
echo "-- libgcc --"
cd $TMP/tmp-$PRGNAM/gcc-build
make -C ${TARGET}/libgcc install
make -C libcpp install
make -C gcc install-po
make -C ${TARGET}/libgcc install-shared
rm -f ${GCC_BOOTSTRAP_PATH}/lib/gcc/${TARGET}/${GCC}/libgcc_eh.a
if [ "$ARCH" == "x86_64" ]; then
  make -C ${TARGET}/32/libgcc install
  make -C ${TARGET}/32/libgcc install-shared
  rm -f ${GCC_BOOTSTRAP_PATH}/lib/gcc/${TARGET}/${GCC}/32/libgcc_eh.a
fi
for lib in \
  libatomic \
  libgomp \
  libitm \
  libquadmath \
  libsanitizer/{a,l,ub}san \
  libstdc++-v3/src \
  libvtv; do
  make -C ${TARGET}/$lib install-toolexeclibLTLIBRARIES
done
if [ "$ARCH" == "x86_64" ]; then
  make -C ${TARGET}/libsanitizer/tsan install-toolexeclibLTLIBRARIES
  for lib in \
    libatomic \
    libgomp \
    libitm \
    libquadmath \
    libsanitizer/{a,l,ub}san \
    libstdc++-v3/src \
    libvtv; do
    make -C ${TARGET}/32/$lib install-toolexeclibLTLIBRARIES
  done
fi
make -C ${TARGET}/libstdc++-v3/po install

fi # End $BUILD_GCC == YES

#
# --- MINGW ---
#

# We extract the sources twice (and remove them inbetween),
# to build native GCC and MinGW in two separate stages:
untar_and_patch || exit 1

cd $TMP/tmp-$PRGNAM || exit 1

# Make the process use our tools as they get built:
if [ "$BUILD_GCC" == "YES" ]; then
  export PATH="${GCC_BOOTSTRAP_PATH}/bin:${GCC_BOOTSTRAP_PATH}/lib:${GCC_BOOTSTRAP_PATH}/include:${MINGW_OUTPUT_PATH}/bin:${MINGW_OUTPUT_PATH}/lib:${MINGW_OUTPUT_PATH}/include:${PATH}"
else
  export PATH="${MINGW_OUTPUT_PATH}/bin:${MINGW_OUTPUT_PATH}/lib:${MINGW_OUTPUT_PATH}/include:${PATH}"
fi

# Re-build the support tools, this time targeting MinGW:
build_support_tools ${MINGW_OUTPUT_PATH} ${TARGET}
build_support_tools_mingw ${MINGW_OUTPUT_PATH}

# mingw-w64-binutils:
echo "-- mingw-w64-binutils --"
cd $TMP/tmp-$PRGNAM/binutils-${BINUTILS}
# Do not install libiberty:
sed -i 's/install_to_$(INSTALL_DEST) //' libiberty/Makefile.in
for _target in ${MINGW_TARGETS}; do
  echo -e "Building ${_target} cross binutils"
  mkdir -p $TMP/tmp-$PRGNAM/binutils-${_target} && cd $TMP/tmp-$PRGNAM/binutils-${_target}
  $TMP/tmp-$PRGNAM/binutils-${BINUTILS}/configure \
    --target="${_target}" \
    --enable-lto \
    --enable-plugins \
    --enable-deterministic-archives \
    --disable-multilib \
    --disable-nls \
    --disable-werror \
    --prefix="${MINGW_OUTPUT_PATH}" \
    ${COMMONCONFIG}
  make ${NUMJOBS} || make || exit 1
done
for _target in ${MINGW_TARGETS}; do
  echo -e "Installing ${_target} cross binutils"
  cd $TMP/tmp-$PRGNAM/binutils-${_target}
  make install || exit 1
done

# binutils docs:
echo "-- binutils-docs --"
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/binutils
( cd $TMP/tmp-$PRGNAM/binutils-${BINUTILS}
  cp -a $BINUTILS_DOCS $PKG/usr/doc/$PRGNAM-$VERSION/binutils/ || true
)

# mingw-w64-headers:
echo "-- mingw-w64-headers --"
for _target in ${MINGW_TARGETS}; do
  echo -e "Configuring ${_target} headers"
  mkdir -p $TMP/tmp-$PRGNAM/headers-${_target} && cd $TMP/tmp-$PRGNAM/headers-${_target}
  $TMP/tmp-$PRGNAM/mingw-w64-${MINGW}/mingw-w64-headers/configure \
    --enable-sdk=all \
    --enable-secure-api \
    --host="${_target}" \
    --prefix="${MINGW_OUTPUT_PATH}/${_target}"
  make || exit 1
done
for _target in ${MINGW_TARGETS}; do
  echo -e "Installing ${_target} headers"
  cd $TMP/tmp-$PRGNAM/headers-${_target}
  make install
  rm ${MINGW_OUTPUT_PATH}/${_target}/include/pthread_signal.h
  rm ${MINGW_OUTPUT_PATH}/${_target}/include/pthread_time.h
  rm ${MINGW_OUTPUT_PATH}/${_target}/include/pthread_unistd.h
done

# mingw-w64-headers-bootstrap:
echo "-- mingw-w64-headers-bootstrap --"
_dummystring="/* Dummy header, which gets overriden, if winpthread library gets installed.  */"
mkdir -p $TMP/tmp-$PRGNAM/dummy/ && cd $TMP/tmp-$PRGNAM//dummy
echo "${_dummystring}" > pthread_signal.h
echo "${_dummystring}" > pthread_time.h
echo "${_dummystring}" > pthread_unistd.h
for _target in ${MINGW_TARGETS}; do
  install -Dm644 $TMP/tmp-$PRGNAM/dummy/pthread_signal.h ${MINGW_OUTPUT_PATH}/${_target}/include/pthread_signal.h
  install -Dm644 $TMP/tmp-$PRGNAM/dummy/pthread_time.h ${MINGW_OUTPUT_PATH}/${_target}/include/pthread_time.h
  install -Dm644 $TMP/tmp-$PRGNAM/dummy/pthread_unistd.h ${MINGW_OUTPUT_PATH}/${_target}/include/pthread_unistd.h
done

# Use a separate src dir for mingw-w64-gcc-base:
cp -r $TMP/tmp-$PRGNAM/gcc-${GCC} $TMP/tmp-$PRGNAM/gcc-${GCC}-base

# mingw-w64-gcc-base:
echo "-- mingw-w64-gcc-base --"
# Do not install libiberty:
sed -i 's/install_to_$(INSTALL_DEST) //' $TMP/tmp-$PRGNAM/gcc-${GCC}-base/libiberty/Makefile.in
for _target in ${MINGW_TARGETS}; do
  echo -e "Building "${_target}" GCC C compiler"
  mkdir -p $TMP/tmp-$PRGNAM/gcc-${GCC}-base-${_target} && cd $TMP/tmp-$PRGNAM/gcc-${GCC}-base-${_target}
  $TMP/tmp-$PRGNAM/gcc-${GCC}-base/configure \
    --target="${_target}" \
    --enable-languages=c,lto \
    --with-system-zlib \
    --enable-lto \
    --disable-nls \
    --enable-version-specific-runtime-libs \
    --disable-multilib \
    --enable-checking=release \
    --with-isl="${MINGW_OUTPUT_PATH}" \
    --with-gmp="${MINGW_OUTPUT_PATH}" \
    --with-mpfr="${MINGW_OUTPUT_PATH}" \
    --with-mpc="${MINGW_OUTPUT_PATH}" \
    --prefix="${MINGW_OUTPUT_PATH}" \
    ${EXCEPTIONS_ARGS} \
    ${COMMONCONFIG} \
    || exit 1
    make ${NUMJOBS} all-gcc || make all-gcc || exit 1
done
for _target in ${MINGW_TARGETS}; do
  echo -e "Installing ${_target} GCC C compiler"
  cd $TMP/tmp-$PRGNAM/gcc-${GCC}-base-"${_target}"
  make install-gcc
  strip ${MINGW_OUTPUT_PATH}/bin/${_target}-* || true
  strip ${MINGW_OUTPUT_PATH}/libexec/gcc/${_target}/${GCC}/{cc1,collect2,lto*} || true
done

# mingw-w64-crt:
echo "-- mingw-w64-crt --"
for _target in ${MINGW_TARGETS}; do
  echo -e "Building ${_target} CRT"
  if [ "${_target}" == "x86_64-w64-mingw32" ]; then
    _crt_configure_args="--disable-lib32 --enable-lib64"
  else
    _crt_configure_args="--disable-lib64 --enable-lib32"
  fi
  mkdir -p $TMP/tmp-$PRGNAM/crt-${_target} && cd $TMP/tmp-$PRGNAM/crt-${_target}
  $TMP/tmp-$PRGNAM/mingw-w64-${MINGW}/mingw-w64-crt/configure \
    --host="${_target}" \
    --enable-wildcard \
    ${_crt_configure_args} \
    --prefix=${MINGW_OUTPUT_PATH}/${_target}
  make ${NUMJOBS} || make || exit 1
done
for _target in ${MINGW_TARGETS}; do
  echo -e "Installing ${_target} crt"
  cd $TMP/tmp-$PRGNAM/crt-${_target}
  make install
done

# mingw-w64-winpthreads:
echo "-- mingw-w64-winpthreads --"
for _target in ${MINGW_TARGETS}; do
  echo -e "Building ${_target} winpthreads..."
  mkdir -p $TMP/tmp-$PRGNAM/winpthreads-build-${_target} && cd $TMP/tmp-$PRGNAM/winpthreads-build-${_target}
  $TMP/tmp-$PRGNAM/mingw-w64-${MINGW}/mingw-w64-libraries/winpthreads/configure \
    --host="${_target}" \
    --prefix=${MINGW_OUTPUT_PATH}/${_target} \
    ${COMMONCONFIG}
  make ${NUMJOBS} || make || exit 1
done
for _target in ${MINGW_TARGETS}; do
  cd $TMP/tmp-$PRGNAM/winpthreads-build-${_target}
  make install || exit 1
  ${_target}-strip --strip-unneeded ${MINGW_OUTPUT_PATH}/${_target}/bin/*.dll  || true
done

# mingw-w64 docs:
echo "-- mingw-w64-docs --"
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/mingw-w64
( cd $TMP/tmp-$PRGNAM/mingw-w64-${MINGW}
  cp -a $MINGW_DOCS $PKG/usr/doc/$PRGNAM-$VERSION/mingw-w64/ || true
)

# mingw-w64-gcc:
echo "-- mingw-w64-gcc --"
for _target in ${MINGW_TARGETS}; do
  mkdir -p $TMP/tmp-$PRGNAM/gcc-build-${_target} && cd $TMP/tmp-$PRGNAM/gcc-build-${_target}
  $TMP/tmp-$PRGNAM/gcc-${GCC}/configure \
    --with-pkgversion='alienBOB' \
    --target="${_target}" \
    --libexecdir=${MINGW_OUTPUT_PATH}/lib \
    --enable-languages=${MINGW_LANGUAGES} \
    --disable-shared \
    --enable-fully-dynamic-string \
    --enable-libstdcxx-time=yes \
    --enable-libstdcxx-filesystem-ts=yes \
    --with-system-zlib \
    --enable-cloog-backend=isl \
    --enable-lto \
    --enable-libgomp \
    --disable-multilib \
    --enable-checking=release \
    --with-isl="${MINGW_OUTPUT_PATH}" \
    --with-gmp="${MINGW_OUTPUT_PATH}" \
    --with-mpfr="${MINGW_OUTPUT_PATH}" \
    --with-mpc="${MINGW_OUTPUT_PATH}" \
    --prefix="${MINGW_OUTPUT_PATH}" \
    ${EXCEPTIONS_ARGS} \
    ${WIN32THREADS_ARGS} \
    || exit 1
  make ${NUMJOBS} || make || exit 1
done
for _target in ${MINGW_TARGETS}; do
  cd $TMP/tmp-$PRGNAM/gcc-build-${_target}
  make install || exit 1
  ${_target}-strip ${MINGW_OUTPUT_PATH}/${_target}/lib/*.dll || true
  strip ${MINGW_OUTPUT_PATH}/bin/${_target}-* || true
  strip ${MINGW_OUTPUT_PATH}/lib/gcc/${_target}/${GCC}/{cc1*,collect2,lto*} || true
  ln -s ${_target}-gcc ${MINGW_OUTPUT_PATH}/bin/${_target}-cc
  # Move dlls to the correct location:
  mkdir -p ${MINGW_OUTPUT_PATH}/${_target}/bin/
  mv ${MINGW_OUTPUT_PATH}/${_target}/lib/*.dll ${MINGW_OUTPUT_PATH}/${_target}/bin/ || true
done
for _binaries in ${MINGW_OUTPUT_PATH}/bin/*; do
  if [[ "$_binaries" != *"eu"* ]]; then
    strip $_binaries || true
  fi
done
# Remove unnecessary files:
rm -rf ${MINGW_OUTPUT_PATH}/share
rm -f ${MINGW_OUTPUT_PATH}/lib/libcc1.*
# Create lto plugin link:
mkdir -p ${MINGW_OUTPUT_PATH}/lib/bfd-plugins
ln -sf ../gcc/${ARCH}-w64-mingw32/${GCC}/liblto_plugin.so ${MINGW_OUTPUT_PATH}/lib/bfd-plugins/liblto_plugin.so

# gcc docs:
echo "-- gcc-docs --"
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/gcc
( cd $TMP/tmp-$PRGNAM/gcc-${GCC}
  cp -a $GCC_DOCS $PKG/usr/doc/$PRGNAM-$VERSION/gcc/ || true
)

#
# --- DONE ---
#

# Add profile scripts to modify the $PATH:
mkdir -p $PKG/etc/profile.d
cat $SRCDIR/profile.d/mingw-w64.sh | sed -e "s/@@VERSION@@/$VERSION/" \
  > $PKG/etc/profile.d/mingw-w64.sh
cat $SRCDIR/profile.d/mingw-w64.csh | sed -e "s/@@VERSION@@/$VERSION/" \
  > $PKG/etc/profile.d/mingw-w64.csh
chmod 0755 $PKG/etc/profile.d/mingw-w64.*

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

# Add documentation:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cat $SRCDIR/$(basename $0) > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
chown -R root:root $PKG/usr/doc/$PRGNAM-$VERSION
find $PKG/usr/doc -type f -exec chmod 644 {} \;

# Add a package description:
mkdir -p $PKG/install
cat $SRCDIR/slack-desc > $PKG/install/slack-desc

# Build the package:
cd $PKG
makepkg --linkadd y --chown n $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-txz} 2>&1 | tee $OUTPUT/makepkg-${PRGNAM}.log
cd $OUTPUT
md5sum ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-txz} > ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-txz}.md5
cd -
cat $PKG/install/slack-desc | grep "^${PRGNAM}" > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txt

# Restore the original umask:
umask ${_UMASK_}