export TARGET="${1}"
export PREFIX="`pwd`/rel-bin/${TARGET}"
export PATH="${PREFIX}/bin:${PATH}"
export OUT="`pwd`/out"

#### JEŚLI BĘDĄ NOWE WERSJE BINUTILS'A i GCC PROSZĘ ZMIENIĆ NUMER!!!
export binutils_version="2.31"	#TU ZMIENIAMY!
export version="LATEST-9" 	#TU ZMIENIAMY!
export nproc=$(( `grep -c "processor" /proc/cpuinfo` * 2 ))
export binutils_ext="tar.xz"	#TU POD ŻADNYM POZOREM NIE ZMIENIAJ TYPU!!!!!
####

if ! command -v lftp >/dev/null; then
	clear
	printf "\n  Nie znaleziono \"lftp\"!\n  Prosze zanistaluj go na swoim obecnym systemie!\n\n"
	exit 1
fi

if [ "${REMOVE}" == "1" ]; then
	rm -rf binutils-* build-* ${version} gcc-* */* zen-kernel-*
fi

(
	if [ ! -e binutils-${binutils_version}${binutils_ext} ]; then
		wget -c http://ftp.gnu.org/gnu/binutils/binutils-${binutils_version}.${binutils_ext}
	fi
	if [ ! -d binutils-${binutils_version} ]; then
		tar -xf binutils-*.*
	fi
)	|| exit 1

mkdir -pv build-binutils
cd build-binutils
../binutils-*/configure --target="${TARGET}" --prefix="${PREFIX}" --disable-nls --disable-werror --with-sysroot="${PREFIX}" --enable-obsolete
cd ..

if ! (
	make -C build-binutils -j${nproc}
	make -C build-binutils -j${nproc} install
)
then
	exit 1
fi

(
	if [ ! -e */gcc-*.* ]; then
		lftp -c "open ftp://ftp.fu-berlin.de/unix/languages/gcc/snapshots ; mirror ${version}"
	fi
	if [ ! -d gcc-* ]; then
		tar -xf */gcc-*.*
	fi
)	|| exit 1

(cd gcc-*; contrib/download_prerequisites)

mkdir -pv build-gcc

if ! (
	cd build-gcc
	../gcc-*/configure --target=${TARGET} --prefix=${PREFIX} --disable-lto --disable-nls --disable-werror --enable-languages=all --enable-multilib --enable-multiarch --with-pkgversion="*DANiO* T00LCHAIN" --with-system-zlib --enable-obsolete --with-sysroot="${PREFIX}"
	cd ..
)
then
	exit 1
fi

maybe_try_this()
{
	make -C build-gcc all-gcc -j${nproc} || return 1
	make -C build-gcc all-target-libgcc -j${nproc} || return 1
	make -C build-gcc install-gcc -j${nproc} || return 1
	make -C build-gcc install-target-libgcc -j${nproc} || return 1
}

if (
	if [ ! -d zen-kernel-testing ]; then
		wget -c http://github.com/zen-kernel/zen-kernel/archive/testing.tar.gz -O - | tar -xzvf -
	fi
	mkdir -pv "${PREFIX}/usr"
	make -C zen-kernel-testing headers_install ARCH=`echo ${TARGET} | cut -f1 -d"-" | sed -e s/i.86/x86/ -e s/x86_64/x86/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/ -e s/s390x/s390/ -e s/parisc64/parisc/ -e s/ppc.*/powerpc/ -e s/mips.*/mips/ -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ -e s/riscv.*/riscv/` INSTALL_HDR_PATH="${PREFIX}/usr"
	make -C build-gcc -j${nproc} || maybe_try_this
	make -C build-gcc install -j${nproc} || maybe_try_this
)
then
	find ${PREFIX} | xargs file | grep "ELF" | grep "executable" | cut -f 1 -d ":" | xargs strip -S 2>/dev/null
	mkdir -pv out
	(cd ${PREFIX}; tar -cJf "${OUT}/${TARGET}-`date +"%d-%m-%Y"`.txz" .)
	rm -rf build-*
	#printf "\n  POPRAWNIE ZBUDOWANO GCC DLA ${TARGET}!\n\n"
else
	echo "STAGE=${TARGET}" > .error
	exit 1
fi