dev-lang/zig: add version 9999

Signed-off-by: Nick Erdmann <n@nirf.de>
Closes: https://github.com/gentoo/gentoo/pull/12599
Signed-off-by: Joonas Niilola <juippis@gentoo.org>

diff --git a/dev-lang/zig/zig-9999.ebuild b/dev-lang/zig/zig-9999.ebuild
new file mode 100644 (file)
index 0000000..055f1f1
--- /dev/null
+++ b/dev-lang/zig/zig-9999.ebuild
@@ -0,0 +1,61 @@
+# Copyright 2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake-utils llvm
+
+DESCRIPTION="A robust, optimal, and maintainable programming language"
+HOMEPAGE="https://ziglang.org/"
+LICENSE="MIT"
+SLOT="0"
+IUSE="+experimental"
+
+if [[ ${PV} == 9999 ]]; then
+       EGIT_REPO_URI="https://github.com/ziglang/zig.git"
+       inherit git-r3
+else
+       SRC_URI="https://github.com/ziglang/zig/archive/${PV}.tar.gz -> ${P}.tar.gz"
+       KEYWORDS="~amd64"
+fi
+
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430 NVPTX
+       PowerPC Sparc SystemZ WebAssembly X86 XCore )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+# According to zig's author, zig builds that do not support all targets are not
+# supported by the upstream project.
+LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]}
+
+RDEPEND="
+       sys-devel/llvm:8
+       !experimental? ( sys-devel/llvm:8[${LLVM_TARGET_USEDEPS// /,}] )
+       sys-devel/clang:8
+"
+
+DEPEND="${RDEPEND}"
+
+LLVM_MAX_SLOT=8
+
+llvm_check_deps() {
+       has_version "sys-devel/clang:${LLVM_SLOT}"
+}
+
+src_prepare() {
+       if use experimental; then
+               sed -i '/^NEED_TARGET(/d' cmake/Findllvm.cmake || die "unable to modify cmake/Findllvm.cmake"
+       fi
+
+       sed -i 's/--prefix "${CMAKE_INSTALL_PREFIX}"/--prefix ".\/${CMAKE_INSTALL_PREFIX}"/' CMakeLists.txt || \
+           die "unable to fix install path"
+
+       cmake-utils_src_prepare
+}
+
+src_configure() {
+       local mycmakeargs=(
+               -DCLANG_INCLUDE_DIRS="$(llvm-config --includedir)"
+               -DCLANG_LIBDIRS="$(llvm-config --libdir)"
+       )
+
+       cmake-utils_src_configure
+}