#!/bin/sh
#
# Copyright (c) 2019 David Demelier <markand@malikania.fr>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#

PKGNAME=llvm
PKGVERSION=8.0.0
PKGREVISION=1
PKGLICENSE="CUSTOM"
PKGSUMMARY="low level virtual machine compiler infrastructure"
PKGDOWNLOAD="http://releases.llvm.org/$PKGVERSION/$PKGNAME-$PKGVERSION.src.tar.xz"
PKGDEPENDS="python/python lib/zlib"
PKGOPTIONS="DOXYGEN SPHINX"

: ${CC:=gcc}
: ${CFLAGS:=-O2}
: ${CXX:=g++}
: ${CXXFLAGS:=-O2}
: ${DOXYGEN:=yes}
: ${SPHINX:=yes}

if [ "$DOXYGEN" = "yes" ]; then
	PKGDEPENDS="dev/doxygen $PKGDEPENDS"
	with_doxygen="On"
else
	with_doxygen="Off"
fi

if [ "$SPHINX" = "yes" ]; then
	PKGDEPENDS="dev/sphinx $PKGDEPENDS"
	with_sphinx="On"
else
	with_sphinx="Off"
fi

build()
{
	rm -rf $PKGNAME-$PKGVERSION.src
	tar xvaf $PKGNAME-$PKGVERSION.src.tar.xz
	pushd $PKGNAME-$PKGVERSION.src

	# -DLLVM_ENABLE_RTTI=On => mesa with nouveau support requires it.
	mkdir build && pushd build
	cmake .. \
		-DCMAKE_BUILD_TYPE=Release \
		-DBUILD_SHARED_LIBS=On \
		-DCMAKE_INSTALL_PREFIX=/usr \
		-DCMAKE_C_COMPILER="$CC" \
		-DCMAKE_C_FLAGS="$CFLAGS" \
		-DCMAKE_CXX_COMPILER="$CXX" \
		-DCMAKE_CXX_FLAGS="$CXXFLAGS" \
		-DLLVM_ENABLE_RTTI=On \
		-DLLVM_ENABLE_DOXYGEN=$with_doxygen \
		-DLLVM_ENABLE_SPHINX=$with_sphinx
	make
	make install DESTDIR=$DESTDIR
	popd

	popd
	rm -rf $PKGNAME-$PKGVERSION.src
}
