# Contributor: Devin Cofer <ranguvar{AT]archlinux[DOT}us>
# Contributor: Tobias Kieslich <tobias@justdreams.de>
# Contributor: Geoffroy Carrier <geoffroy.carrier@aur.archlinux.org>
# Contributor: Tomas Lindquist Olsen <tomas@famolsen.dk>
# Contributor: Roberto Alsina <ralsina@kde.org>
# Contributor: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>


pkgname=('llvm' 'clang')
pkgver=2.6
pkgrel=1
pkgdesc="Low Level Virtual Machine"
arch=('i686' 'x86_64')
url="http://llvm.org"
license=("custom:University of Illinois/NCSA Open Source License")

depends=('libelf')

source=("http://llvm.org/releases/$pkgver/llvm-$pkgver.tar.gz"
        "http://llvm.org/releases/$pkgver/clang-$pkgver.tar.gz")
md5sums=('34a11e807add0f4555f691944e1a404a'
         '09d696bf23bb4a3cf6af3c7341cdd946')
sha256sums=('4cd9257350c5ff8b9b139d19497e2396c0604eef0e5d6504f5c1463b09bf2d84'
            '98e22f4f5877fb3c73abb9ddcb3065ba9c94a21146387da7f905e6fd559d39ea')

build() {
	cd "$srcdir/llvm-$pkgver"
	mv "../clang-$pkgver/" "tools/clang"

	# --sysconfdir to configure apparently isn't enough...
	sed -i 's:$(PROJ_prefix)/etc/llvm:/etc/llvm:' Makefile.config.in || return 1
	# --libdir to configure apparently isn't enough...
	sed -i 's:$(PROJ_prefix)/lib:$(PROJ_prefix)/lib/llvm:' Makefile.config.in || return 1
	# Fix insecure rpath http://bugs.archlinux.org/task/14017
	sed -i 's:\$(RPATH) -Wl,\$(ToolDir)::g' Makefile.rules || return 1
	# Fix path that points to the build directory
	sed -i 's:^TOOLDIR.*:TOOLDIR=/usr/bin:' tools/gccas/gccas.sh || return 1
	# Remove libHello transformation
	sed -i 's: Hello::' lib/Transforms/Makefile || return 1

	# 64-bit needs PIC
	_pic_flag="--disable-pic"
	[ "$CARCH" = "x86_64" ] && _pic_flag="--enable-pic"
	# Apply strip option to configure
	_optimize_flag="--enable-optimize"
	[[ $(check_option strip) = "n" ]] && _optimize_flag="--disable-optimize"

	./configure --prefix=/usr --libdir=/usr/lib/llvm --sysconfdir=/etc \
	            --enable-bindings=none --enable-targets=host-only --enable-jit \
	            --disable-debug-runtime --disable-expensive-checks --disable-assertions \
	            $_pic_flag $_optimize_flag || return 1

	make || return 1
}
package_llvm() {
	cd "$srcdir/llvm-$pkgver"

	make DESTDIR="$pkgdir" install || return 1

	# Fix libpatch in llvm-config
	sed -i 's:\(ABS_RUN_DIR/lib\):\1/llvm:' \
	       "$pkgdir/usr/bin/llvm-config" || return 1

	# PostScript docs and such
	rm -rf "$pkgdir/usr/docs/"
        # Check this after each LLVM release... the files LLVM+Clang installs but LLVM doesn't
	rm     "$pkgdir/usr/bin/clang" || return 1
	rm -rf "$pkgdir/usr/lib/clang/" || return 1
	rm -rf "$pkgdir/usr/libexec/" || return 1
	rm     "$pkgdir/usr/share/man/man1/clang.1" || return 1

	install -Dm644 LICENSE.TXT "$pkgdir/usr/share/licenses/$pkgname/LICENSE" || return 1
}
package_clang() {
	pkgdesc="C language family frontend for LLVM"
	url="http://clang.llvm.org/"
	depends=("llvm=$pkgver")

	cd "$srcdir/llvm-$pkgver"
	
	make DESTDIR="$pkgdir" install || return 1

	# Check this after each LLVM release... the files LLVM+Clang installs but LLVM doesn't
	rm -rf "$startdir/tmp/"
	mkdir -p "$startdir/tmp/usr/"{bin,lib,share/man/man1}/
	mv "$pkgdir/usr/bin/clang"  "$startdir/tmp/usr/bin/" || return 1
	mv "$pkgdir/usr/lib/clang/" "$startdir/tmp/usr/lib/" || return 1
	mv "$pkgdir/usr/libexec/"   "$startdir/tmp/usr/" || return 1
	mv "$pkgdir/usr/share/man/man1/clang.1" "$startdir/tmp/usr/share/man/man1/" || return 1
	rm -rf "$pkgdir/"*
	mv "$startdir/tmp/"* "$pkgdir/" || return 1
	rmdir "$startdir/tmp/" || return 1

	install -Dm644 LICENSE.TXT "$pkgdir/usr/share/licenses/clang/LICENSE" || return 1
}