#=----------------------------------------------------------------------------=#
#                        OS/K CROSS COMPILER BUILDER                           #
#                                                                              #
#   Desc:   Project Makefile                                                   #
#                                                                              #
#                                                                              #
#   Copyright © 2018-2020 The OS/K Team                                        #
#                                                                              #
#   This file is part of OS/K.                                                 #
#                                                                              #
#   OS/K is free software: you can redistribute it and/or modify               #
#   it under the terms of the GNU General Public License as published by       #
#   the Free Software Foundation, either version 3 of the License, or          #
#   any later version.                                                         #
#                                                                              #
#   OS/K is distributed in the hope that it will be useful,                    #
#   but WITHOUT ANY WARRANTY# without even the implied warranty of             #
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              #
#   GNU General Public License for more details.                               #
#                                                                              #
#   You should have received a copy of the GNU General Public License          #
#   along with OS/K.  If not, see <https://www.gnu.org/licenses/>.             #
#=----------------------------------------------------------------------------=#

.PHONY: retrieve compile showenv
.DEFAULT_GOAL := compile


## VERSIONS ------------------------------------------------------------------ #

# GCC 10.1.0
GCC_SOURCES = https://ftp.gnu.org/gnu/gcc/gcc-10.1.0/gcc-10.1.0.tar.xz
# BINUTILS 2.34
BINUTILS_SOURCES = https://ftp.gnu.org/gnu/binutils/binutils-2.34.tar.xz


## VARIABLES ----------------------------------------------------------------- #

#ENV
export NTHREADS := ${nproc}
export PREFIX := $(HOME)/opt/cross
export TARGET := x86_64-elf
export PATH := $(PREFIX)/bin:$(PATH)
export XZ_DEFAULTS := -T $(NTHREADS)


GCCTARNAME = gcc.tar.xz
BINUTILSTARNAME = binutils.tar.xz
GCCDIRNAME = gcc-src
BINUTILSDIRNAME = binutils-src

# Color codes
CL='\033[0;32m'
CL2='\033[1;36m'
CL3='\033[0m'
NC='\033[1;37m'


## RECIPES ------------------------------------------------------------------- #

showenv:
	@echo Installation path prefix : $(PREFIX)
	@echo Installation path : $(PATH)
	@echo Target : $(TARGET)
	@echo Thread number : $(NTHREADS)

retrieve: showenv
	@echo ${CL2}[$@] ${NC}Downloading GCC sources...${CL3}
	@wget $(GCC_SOURCES) -O $(GCCTARNAME) -q -c --show-progress
	@echo ${CL2}[$@] ${NC}Downloading BINUTILS sources...${CL3}
	@wget $(BINUTILS_SOURCES) -O $(BINUTILSTARNAME) -q -c --show-progress
	@echo ${CL2}[$@] ${CL}Success.${CL3}

deflate:
	@echo ${CL2}[$@] ${NC}Deflate GCC sources...${CL3}
	@tar -xaf $(GCCTARNAME) --threads NTHREADS
	@echo ${CL2}[$@] ${NC}Deflate BINUTILS sources...${CL3}
	@tar -xaf $(BINUTILSTARNAME) --threads NTHREADS
	@echo ${CL2}[$@] ${CL}Success.${CL3}

compile: retrieve deflate
	@echo ${CL2}[$@] ${CL}Success.${CL3}

remove_all:
	@rm -rf gcc*
	@rm -rf binutils*
	@echo ${CL2}[$@] ${CL}Success.${CL3}