# $Id$
# multilib abis

# tell the buildsystem that we are doing a multilib build
export MULTILIB_BUILD="true"

# be verbose or nor (true|false}
: ${MULTILIB_VERBOSE="true"}

# enter the abi srcdir as default setting
: ${MULTILIB_ENTER_SRCDIR="true"}

# multilib should call all dependant includes, which gets overridden
sminclude mtools

# do not define EMUL_LINUX_32 after inherit of multlib !!
# it may break i*86 builds

# default ABIs to be build
case ${ARCH} in
	x86_64)
		: ${MULTILIB_ABIS="m32 m64"}
		# default false
		: ${EMUL_LINUX_32="false"}

		# add linux32 to the dependencies
		if [[ ${EMUL_LINUX_32} = true ]]
		then
			EMUL_LINUX_32_SDEPEND_x86_64=">= sys-apps/util-linux-2.19"
			SPECIAL_VARS="${SPECIAL_VARS} EMUL_LINUX_32_SDEPEND_x86_64"
		fi
		;;
	i*86)
		: ${MULTILIB_ABIS="m32"}
		# always false
		EMUL_LINUX_32="false"
		;;
esac

# add linux32 to the dependencies
if [[ ${EMUL_LINUX_32} = true ]]
then
	# very dirty trick to get the dependencies right
	# ; is the IFS, tr replaces ; with an crlfs
	# the var ist decided with our common eval+echo magic
	if [[ -z ${SDEPEND} ]]
	then
		SDEPEND="$(marchsdepend EMUL_LINUX_32_SDEPEND)"
	else
		SDEPEND="${SDEPEND}
			$(marchsdepend EMUL_LINUX_32_SDEPEND)"
	fi
fi

##
# overide some defaults to respect ABI_LIBDIR
##
mlibdir()
{
	local libdir=lib
	[[ ${ARCH} = x86_64 ]] && libdir=lib64
	[[ -n ${ABI_LIBDIR} ]] && libdir="${ABI_LIBDIR}"

	echo "${libdir}"
}

##
# multilib abi changers
##
abi-m32()
{
	export ABI="m32"
	export CC="gcc -${ABI}"
	export CXX="g++ -${ABI}"
	export ABI_LIBDIR="lib"
	if [[ ${EXPORT_ABI_LDFLAGS} != false ]]
	then
		local saved_ldflags="${LDFLAGS}"
		export LDFLAGS="${LDFLAGS} -L/${ABI_LIBDIR} -L/usr/${ABI_LIBDIR}"
	fi
	# keep pkgconfig clean
	local orig_pkg_config_path="${PKG_CONFIG_PATH}"
	export PKG_CONFIG_PATH="/usr/${ABI_LIBDIR}/pkgconfig:${PKG_CONFIG_PATH}"

	if [[ ${MULTILIB_VERBOSE} = true ]]
	then
		echo -e "${COLBLUE}*** ${COLGREEN}running with -${ABI} ABI${COLDEFAULT}"
		echo -e "${COLBLUE}*** ${COLGREEN}  ABI${COLDEFAULT}='${ABI}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  CC${COLDEFAULT}='${CC}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  CXX${COLDEFAULT}='${CXX}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  ABI_LIBDIR${COLDEFAULT}='${ABI_LIBDIR}'"
		if [[ ${EXPORT_ABI_LDFLAGS} != false ]]
		then
			echo -e "${COLBLUE}*** ${COLGREEN}  LDFLAGS${COLDEFAULT}='${LDFLAGS}'"
		else
			echo -e "${COLBLUE}*** ${COLGREEN}  LDFLAGS${COLDEFAULT}='${COLYELLOW}not exported${COLDEFAULT}'"
		fi
		echo -e "${COLBLUE}*** ${COLGREEN}  CHOST${COLDEFAULT}='${CHOST}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  SRCDIR${COLDEFAULT}='${SRCDIR}/${SRCSUBDIR}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  PKG_CONFIG_PATH${COLDEFAULT}='${PKG_CONFIG_PATH}'"
	fi

	# configure a linux32 emulated build
	if [[ ${EMUL_LINUX_32} = true ]]
	then
		if [[ ${MULTILIB_VERBOSE} = true ]]
		then
			echo -e "${COLBLUE}*** ${COLGREEN}  EMUL_LINUX_32${COLDEFAULT}='${EMUL_LINUX_32}'"
		fi
		uname(){ linux32 uname $@; } && export -f uname
		local orig_chost="${CHOST}" && export CHOST="i686-pc-linux-gnu"
	fi
	if [[ ${MULTILIB_VERBOSE} = true ]]
	then
		echo -e "${COLBLUE}*** ${COLGREEN}  CHOST${COLDEFAULT}='${CHOST}'"
	fi

	# run any given command
	if [[ ${MULTILIB_VERBOSE} = true ]]
	then
		echo -e "${COLGREEN}Executing:${COLDEFAULT} '$@'"
	fi
	eval $@ || die

	unset ABI CC CXX ABI_LIBDIR
	# keep pkgconfig clean
	export PKG_CONFIG_PATH="${orig_pkg_config_path}"
	export LDFLAGS="${saved_ldflags}"

	# restore original settings
	if [[ ${EMUL_LINUX_32} = true ]]
	then
		unset uname
		export CHOST="${orig_chost}" && unset orig_chost
	fi
}

abi-m64()
{
	export ABI="m64"
	export CC="gcc -${ABI}"
	export CXX="g++ -${ABI}"
	export ABI_LIBDIR="lib64"
	if [[ ${EXPORT_ABI_LDFLAGS} != false ]]
	then
		local saved_ldflags="${LDFLAGS}"
		export LDFLAGS="-L/${ABI_LIBDIR} -L/usr/${ABI_LIBDIR}"
	fi
	# keep pkgconfig clean
	local orig_pkg_config_path="${PKG_CONFIG_PATH}"
	export PKG_CONFIG_PATH="/usr/${ABI_LIBDIR}/pkgconfig:${PKG_CONFIG_PATH}"

	if [[ ${MULTILIB_VERBOSE} = true ]]
	then
		echo -e "${COLBLUE}*** ${COLGREEN}running with -${ABI} ABI${COLDEFAULT}"
		echo -e "${COLBLUE}*** ${COLGREEN}  ABI${COLDEFAULT}='${ABI}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  CC${COLDEFAULT}='${CC}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  CXX${COLDEFAULT}='${CXX}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  ABI_LIBDIR${COLDEFAULT}='${ABI_LIBDIR}'"
		if [[ ${EXPORT_ABI_LDFLAGS} != false ]]
		then
			echo -e "${COLBLUE}*** ${COLGREEN}  LDFLAGS${COLDEFAULT}='${LDFLAGS}'"
		else
			echo -e "${COLBLUE}*** ${COLGREEN}  LDFLAGS${COLDEFAULT}='${COLYELLOW}not exported${COLDEFAULT}'"
		fi
		echo -e "${COLBLUE}*** ${COLGREEN}  CHOST${COLDEFAULT}='${CHOST}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  SRCDIR${COLDEFAULT}='${SRCDIR}/${SRCSUBDIR}'"
		echo -e "${COLBLUE}*** ${COLGREEN}  PKG_CONFIG_PATH${COLDEFAULT}='${PKG_CONFIG_PATH}'"
	fi

	# run any given command
	if [[ ${MULTILIB_VERBOSE} = true ]]
	then
		echo -e "${COLGREEN}Executing:${COLDEFAULT} '$@'"
	fi
	eval $@ || die

	unset ABI CC CXX ABI_LIBDIR
	# keep pkgconfig clean
	export PKG_CONFIG_PATH="${orig_pkg_config_path}"
	export LDFLAGS="${saved_ldflags}"
}

only-m32()
{
	local abi=m32
	local i

	for i in ${MULTILIB_ABIS}
	do
		if [[ ${i} = ${abi} ]]
		then
			# export this for mpatch etc (to repect only-${abi})
			export MULTILIB_ONLY_ABI=${abi}

			if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
			then
				cd ${SRCDIR}-${abi}/${SRCSUBDIR}
			fi
			abi-${abi} $@ || die

			# unset this is very important
			unset MULTILIB_ONLY_ABI
		fi
	done
}

only-m64()
{
	local abi=m64
	local i

	for i in ${MULTILIB_ABIS}
	do
		if [[ ${i} = ${abi} ]]
		then
			# export this for mpatch etc (to repect only-${abi})
			export MULTILIB_ONLY_ABI=${abi}

			if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
			then
				cd ${SRCDIR}-${abi}/${SRCSUBDIR}
			fi
			abi-${abi} $@ || die

			# unset this is very important
			unset MULTILIB_ONLY_ABI
		fi
	done
}

all-abis()
{
	local abi
	for abi in ${MULTILIB_ABIS}
	do
		if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
		then
			cd ${SRCDIR}-${abi}/${SRCSUBDIR}
		fi
		abi-${abi} $@ || die
	done
}

mabi()
{
	echo \${ABI}
}

mabi-cc()
{
	echo "gcc -\${ABI}"
}

mabi-cxx()
{
	echo "g++ -\${ABI}"
}

mabi-cflags()
{
	echo "\${CFLAGS}"
}

mabi-cxxflags()
{
	echo "\${CXXFLAGS}"
}

mabi-ldflags()
{
	echo "\${LDFLAGS}"
}

##
# multilib compile functions
##

if [[ ! -z $(typeset -f mconfigure) ]]
then
	# rename the old one
	old_mconfigure=old$(typeset -f mconfigure)
	eval "${old_mconfigure}"

mconfigure()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	for abi in ${abis_to_run}
	do
		if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
		then
			cd ${SRCDIR}-${abi}/${SRCSUBDIR}
		fi
		abi-${abi} oldmconfigure $@ || die
	done
}
fi

if [[ ! -z $(typeset -f munpack) ]]
then
	# rename the old one
	old_munpack=old$(typeset -f munpack)
	eval "${old_munpack}"

munpack()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	for abi in ${abis_to_run}
	do
		echo -e "${COLBLUE}*** ${COLGREEN}unpacking for ABI -${abi}${COLDEFAULT}"
		oldmunpack $@ || die
		mv ${SRCDIR} ${SRCDIR}-${abi} || die
	done
}
fi

if [[ ! -z $(typeset -f mmake) ]]
then
	# rename the old one
	old_mmake=old$(typeset -f mmake)
	eval "${old_mmake}"

mmake()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	for abi in ${abis_to_run}
	do
		echo -e "${COLBLUE}*** ${COLGREEN}compiling for ABI -${abi}${COLDEFAULT}"
		if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
		then
			cd ${SRCDIR}-${abi}/${SRCSUBDIR}
		fi
		abi-${abi} oldmmake $@ || die
	done
}
fi

if [[ ! -z $(typeset -f minstall) ]]
then
	# rename the old one
	old_minstall=old$(typeset -f minstall)
	eval "${old_minstall}"

minstall()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	for abi in ${abis_to_run}
	do
		echo -e "${COLBLUE}*** ${COLGREEN}installing for ABI -${abi}${COLDEFAULT}"
		if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
		then
			cd ${SRCDIR}-${abi}/${SRCSUBDIR}
		fi
		abi-${abi} oldminstall $@ || die
	done
}
fi

minstall_destdir()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	for abi in ${abis_to_run}
	do
		echo -e "${COLBLUE}*** ${COLGREEN}installing for ABI -${abi}${COLDEFAULT}"
		if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
		then
			cd ${SRCDIR}-${abi}/${SRCSUBDIR}
		fi
		make DESTDIR=${BINDIR} $@ install || die
	done
}

if [[ ! -z $(typeset -f mpatch) ]]
then
	# rename the old one
	old_mpatch=old$(typeset -f mpatch)
	eval "${old_mpatch}"

mpatch()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	for abi in ${abis_to_run}
	do
		echo -e "${COLBLUE}*** ${COLGREEN}appling patch for ABI -${abi}${COLDEFAULT}"
		if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
		then
			cd ${SRCDIR}-${abi}/${SRCSUBDIR}
		fi
		oldmpatch $@ || die
	done
}
fi

if [[ ! -z $(typeset -f mlibtoolize) ]]
then
	# rename the old one
	old_mlibtoolize=old$(typeset -f mlibtoolize)
	eval "${old_mlibtoolize}"

mlibtoolize()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	for abi in ${abis_to_run}
	do
		echo -e "${COLBLUE}*** ${COLGREEN}running mlibtoolize for ABI -${abi}${COLDEFAULT}"
		if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
		then
			cd ${SRCDIR}-${abi}/${SRCSUBDIR}
		fi
		oldmlibtoolize $@ || die
	done
}
fi

if [[ ! -z $(typeset -f mautoreconf) ]]
then
	# rename the old one
	old_mautoreconf=old$(typeset -f mautoreconf)
	eval "${old_mautoreconf}"

mautoreconf()
{
	local abi
	local abis_to_run="${MULTILIB_ABIS}"

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	for abi in ${abis_to_run}
	do
		echo -e "${COLBLUE}*** ${COLGREEN}running mautoreconf for ABI -${abi}${COLDEFAULT}"
		if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
		then
			cd ${SRCDIR}-${abi}/${SRCSUBDIR}
		fi
		oldmautoreconf $@ || die
	done
}
fi

if [[ ! -z $(typeset -f minstalldocs) ]]
then
	# rename the old one
	old_minstalldocs=old$(typeset -f minstalldocs)
	eval "${old_minstalldocs}"

minstalldocs()
{
	local abi
	local docfiles

	local abis_to_run="${MULTILIB_ABIS}"

	# respect MULTILIB_ONLY_ABI variable
	[[ ! -z ${MULTILIB_ONLY_ABI} ]] && abis_to_run="${MULTILIB_ONLY_ABI}"

	for abi in ${abis_to_run}
	do
		if [[ ${MULTILIB_ENTER_SRCDIR} = true ]]
		then
			cd ${SRCDIR}-${abi}/${SRCSUBDIR}
		fi
		oldminstalldocs $@ || die
	done
}
fi