###############################################################################
#                                                                             #
# IPFire.org - A linux based firewall                                         #
# Copyright (C) 2007-2023  IPFire Team  <info@ipfire.org>                     #
#                                                                             #
# This program 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           #
# (at your option) any later version.                                         #
#                                                                             #
# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.       #
#                                                                             #
###############################################################################

###############################################################################
# Definitions
###############################################################################

include Config

VER        = 19.1.7

THISAPP    = llvm-project-$(VER)
DL_FILE    = $(THISAPP).tar.gz
DL_FROM    = $(URL_IPFIRE)
DIR_APP    = $(DIR_SRC)/$(THISAPP)
TARGET     = $(DIR_INFO)/$(THISAPP)

LLVM_TARGET = 'BPF;X86'
LLVM_HOST_TRIPLE='x86_64-unknown-linux-gnu'

ifeq "$(BUILD_ARCH)" "loongarch64"
	LLVM_TARGET = 'BPF;LoongArch'
	LLVM_HOST_TRIPLE='loongarch64-unknown-linux-gnu'
endif


###############################################################################
# Top-level Rules
###############################################################################

objects = $(DL_FILE)

$(DL_FILE) = $(DL_FROM)/$(DL_FILE)

$(DL_FILE)_BLAKE2 = b435361eb3ca1d548a8b79a475150cf717be1474443005de62b58c1b0c145818dc289c6b4252cfc0e5ff3a4d106f99506dce2fbf6100182b180a5cd23a792fb1

install : $(TARGET)

check : $(patsubst %,$(DIR_CHK)/%,$(objects))

download :$(patsubst %,$(DIR_DL)/%,$(objects))

b2 : $(subst %,%_BLAKE2,$(objects))

###############################################################################
# Downloading, checking, b2sum
###############################################################################

$(patsubst %,$(DIR_CHK)/%,$(objects)) :
	@$(CHECK)

$(patsubst %,$(DIR_DL)/%,$(objects)) :
	@$(LOAD)

$(subst %,%_BLAKE2,$(objects)) :
	@$(B2SUM)

###############################################################################
# Installation Details
###############################################################################

$(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
	@$(PREBUILD)
	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar zxf $(DIR_DL)/$(DL_FILE)

	cd $(DIR_APP)/llvm && mkdir build
	cd $(DIR_APP)/llvm/build && cmake .. -G "Ninja" -DLLVM_TARGETS_TO_BUILD="$(LLVM_TARGET)" \
		-DLLVM_ENABLE_PROJECTS="clang;lldb"    \
		-DCMAKE_BUILD_TYPE=Release        \
		-DLLVM_BUILD_RUNTIME=OFF \
		-DCMAKE_INSTALL_PREFIX=/usr \
		-DLLVM_HOST_TRIPLE="$(LLVM_HOST_TRIPLE)"

	cd $(DIR_APP)/llvm/build && ninja $(MAKETUNING)
	cd $(DIR_APP)/llvm/build && ninja install

	@rm -rf $(DIR_APP)
	@$(POSTBUILD)