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# Contributor Eric Molitor <eric@molitor.org>
# Contributor Travis Tilley <ttilley@gmail.com>
# Maintainer: Natanael Copa <ncopa@alpinelinux.org>
pkgname=clang
# Note: Update together with llvm.
pkgver=10.0.0
pkgrel=0
_llvmver=${pkgver%%.*}
pkgdesc="A C language family front-end for LLVM"
arch="all"
url="https://llvm.org/"
license="Apache-2.0"
options="!check" # some 170 failing tests...
makedepends="
	cmake
	isl-dev
	libedit-dev
	libexecinfo-dev
	libxml2-dev
	libxml2-utils
	llvm$_llvmver-dev
	llvm$_llvmver-static
	llvm$_llvmver-test-utils
	samurai
	python3
	py3-sphinx
	"
checkdepends="diffutils bash"
depends_dev="$pkgname=$pkgver-r$pkgrel $pkgname-extra-tools=$pkgver-r$pkgrel"
subpackages="$pkgname-static $pkgname-dev $pkgname-doc $pkgname-libs
	$pkgname-analyzer::noarch
	$pkgname-extra-tools:extra"
source="https://github.com/llvm/llvm-project/releases/download/llvmorg-$pkgver/clang-$pkgver.src.tar.xz
	https://github.com/llvm/llvm-project/releases/download/llvmorg-$pkgver/clang-tools-extra-$pkgver.src.tar.xz
	10-add-musl-triples.patch
	20-Enable-stack-protector-by-default-for-Alpine-Linux.patch
	30-fix-python-shebangs.patch
	"

builddir="$srcdir/clang-$pkgver.src"

prepare() {
	mv "$srcdir/clang-tools-extra-$pkgver.src" "$builddir/tools/extra"
	default_prepare
}

build() {
	mkdir -p "$builddir"/build
	cd "$builddir"/build

	cmake .. -G Ninja -Wno-dev \
		-DCMAKE_BUILD_TYPE=MinSizeRel \
		-DCMAKE_C_FLAGS_MINSIZEREL_INIT="$CFLAGS" \
		-DCMAKE_CXX_FLAGS_MINSIZEREL_INIT="$CXXFLAGS" \
		-DCMAKE_EXE_LINKER_FLAGS_MINSIZEREL_INIT="$LDFLAGS -Wl,-z,stack-size=2097152" \
		-DCMAKE_INSTALL_PREFIX=/usr \
		-DCMAKE_VERBOSE_MAKEFILE=OFF \
		-DCLANG_VENDOR=Alpine \
		-DCLANG_BUILD_EXAMPLES=OFF \
		-DCLANG_INCLUDE_DOCS=ON \
		-DLLVM_BUILD_DOCS=ON \
		-DLLVM_ENABLE_SPHINX=ON \
		-DSPHINX_WARNINGS_AS_ERRORS=OFF \
		-DCLANG_INCLUDE_TESTS=ON \
		-DCLANG_PLUGIN_SUPPORT=ON \
		-DLIBCLANG_BUILD_STATIC=ON \
		-DLLVM_ENABLE_EH=ON \
		-DLLVM_ENABLE_RTTI=ON

	ninja clang-tblgen
	ninja
}

check() {
	cd "$builddir"/build

	case "$CARCH" in
	armhf) return;; # FIXME: tests fails on armhf
	esac
	lit -sv --param clang_site_config=$builddir/build/test/lib.site.cfg $builddir/build/test
}

package() {
	cd "$builddir"/build

	DESTDIR="$pkgdir" ninja install
	install -m 644 lib/libclang.a "$pkgdir"/usr/lib
}

static() {
	pkgdesc="Static libraries for clang"

	mkdir -p "$subpkgdir"/usr/lib
	mv "$pkgdir"/usr/lib/*.a "$subpkgdir"/usr/lib/
}

dev() {
	default_dev

	# move back usr/lib/clang/x.y.z/include with files such as altivec.h, msa.h etc
	# these are needed to build programs *with* clang, not *against* it.
	mv "$subpkgdir"/usr/lib/clang "$pkgdir"/usr/lib/
}

analyzer() {
	pkgdesc="Clang source code analysis framework"
	depends="$pkgname=$pkgver-r$pkgrel perl python3"

	cd "$pkgdir"

	mkdir -p "$subpkgdir"/usr/bin \
		"$subpkgdir"/usr/libexec \
		"$subpkgdir"/usr/share/
	mv usr/bin/scan-* "$subpkgdir"/usr/bin/
	mv usr/libexec/*-analyzer "$subpkgdir"/usr/libexec/
	mv usr/share/scan-* "$subpkgdir"/usr/share/
}

extra() {
	pkgdesc="Extra tools built using Clang’s tooling APIs"

	cd "$pkgdir"

	mkdir -p "$subpkgdir"/usr/bin "$subpkgdir"/usr/share/clang

	mv usr/bin/clang-apply-replacements "$subpkgdir"/usr/bin/
	mv usr/bin/clang-reorder-fields "$subpkgdir"/usr/bin/
	mv usr/bin/modularize "$subpkgdir"/usr/bin/
	mv usr/bin/clang-tidy "$subpkgdir"/usr/bin/
	mv usr/share/clang/*clang-tidy* "$subpkgdir"/usr/share/clang
	mv usr/bin/clang-change-namespace "$subpkgdir"/usr/bin/
	mv usr/bin/clang-doc "$subpkgdir"/usr/bin/
	mv usr/bin/clang-include-fixer "$subpkgdir"/usr/bin/
	#mv usr/bin/clang-move "$subpkgdir"/usr/bin/
	mv usr/bin/find-all-symbols "$subpkgdir"/usr/bin/
	mv usr/share/clang/clang-include-fixer* "$subpkgdir"/usr/share/clang
	mv usr/share/clang/run-find-all-symbols.py "$subpkgdir"/usr/share/clang
	mv usr/bin/clang-query "$subpkgdir"/usr/bin/
	mv usr/bin/clangd* "$subpkgdir"/usr/bin/
	#mv usr/bin/pp-trace "$subpkgdir"/usr/bin/
	#mv usr/bin/tool-template "$subpkgdir"/usr/bin/
}

sha512sums="b1cccc13c46abcda3d689f51d486fa613ecec40c581c72d8b15951715100a2b8fb24370161601e6716cdba5a784337439e99ec2f0766f988e9cce92de6d775da  clang-10.0.0.src.tar.xz
33b6019e64e9ac94bd7c000b77a4a927602a2705baa9b370e392a56b53fe09c8dad1ff7d583892729e9eb291440433ad7d71df768a96d927e4dbc1988fc01d99  clang-tools-extra-10.0.0.src.tar.xz
367dcd43b42570b5688c4bb41daf2498447e9fa4384896e2b91782017a8ce15b1e6e15cb3a465595d69e681420fce170a6f9a57ea5268e21f0dec7d4605e4c4c  10-add-musl-triples.patch
a8557c5a26774bf98548b9fe77cd54a1b0591bc75beffcb5fbd070986ba954d82255dddbcfcc884c07c3f433b1428c2a6ce649c3a158f4352f30e7057872335b  20-Enable-stack-protector-by-default-for-Alpine-Linux.patch
c7f34b425b0dcea9752eeb7ff3d3a33af9cc45740fd3e77d52e4d610c5fd3daaa4d59138a255b057ef886915615a77ec1e6a447f3818b4b2724129c0ba354932  30-fix-python-shebangs.patch"