#!/bin/bash

# we need support for both pretend and setup phases
[[ "${EBUILD_PHASE}" != "pretend" && \
    "${EBUILD_PHASE}" != "setup" ]] && return 0

PORT_ETC="/etc/portage"

my_gcc(){
	[[ -n "$(awk -F "." 'NF == 2' <<< "${2}")" ]] && dep=":${2}"
	[[ -n "$(awk -F "." 'NF >= 3' <<< "${2}")" ]] && dep="-${2}"
	MY_GCC="$(find "/usr/${MACHTYPE}/gcc-bin/" -name "${2}*")"
	if [[ -n "${MY_GCC}" ]];then
		export ROOTPATH="${MY_GCC}:${ROOTPATH}"
		export PATH="${MY_GCC}:${PATH}"
	else
		eerror ""
		eerror "sys-devel/gcc${dep} not found"
		eerror "${3}: '${1} ${2}'"
		eerror ""
		die "sys-devel/gcc${dep} not found"
	fi
}

########## COMPILERS ##########
switch(){
	while read target ver; do
		if [[ "${CATEGORY}/${PN}" == ${target} ]]; then
			my_gcc "${target}" "${ver}" "${1}"
			export LIBRARY_PATH="$(gcc-config -L):${LIBRARY_PATH}"
		fi
	done < "${1}"
}

target="`ls -d1 ${PORT_ETC}/package.compilers 2>/dev/null | grep -v "~"`"

if [[ -f "${target}" ]];then
	switch "${target}"
elif [[ -d "${target}" ]];then
	while read subtarget;do
		switch "${subtarget}"
	done <<< "`find ${PORT_ETC}/package.compilers/ -type f | grep -v "~"`"
fi

########## COMPILERS_FULL #####
switch_full(){
	while read target ver; do
		if [[ "${CATEGORY}/${PN}" == ${target} ]]; then
			my_gcc "${target}" "${ver}" "${1}"
			export LIBRARY_PATH="${MY_GCC}:${LIBRARY_PATH}"
		fi
	done < "${1}"
}

target_full="`ls -d1 ${PORT_ETC}/package.compilers-full 2>/dev/null | grep -v "~"`"

if [[ -f "${target_full}" ]];then
	switch_full "${target_full}"
elif [[ -d "${target_full}" ]];then
	while read subtarget_full;do
		switch_full "${subtarget_full}"
	done <<< "`find ${PORT_ETC}/package.compilers-full/ -type f | grep -v "~"`"
fi