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# Copyright 2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit cmake flag-o-matic
DESCRIPTION="Making it easier to work with shaders"
HOMEPAGE="https://shader-slang.org/"
# tarball is same as upstream except for including git submodules
SRC_URI="https://distfiles.gentoo.org/pub/dev/ionen@gentoo.org/${P}.tar.xz"
LICENSE="
Apache-2.0-with-LLVM-exceptions
Apache-2.0 Boost-1.0 CC-BY-4.0 MIT Unlicense UoI-NCSA
"
SLOT="0/${PV}"
KEYWORDS="~amd64 ~arm64 ~riscv ~x86"
# needs an annoying submodule that fetches many things, tests seem to
# do runtime compilation that fail due to missing headers, and they
# also need special care and be fed a list of expected failures
# (currently only needed to build x11-terms/kitty, do it as a test)
RESTRICT="test"
RDEPEND="
app-arch/lz4:=
dev-libs/miniz:=
dev-util/glslang:=
dev-util/spirv-tools
"
DEPEND="
${RDEPEND}
>=dev-util/spirv-headers-1.4.350
dev-util/vulkan-headers
"
PATCHES=(
"${FILESDIR}"/${PN}-2026.14.1-includedir.patch
"${FILESDIR}"/${PN}-2026.14.1-libdir.patch
"${FILESDIR}"/${PN}-2026.14.1-lz4.patch
"${FILESDIR}"/${PN}-2026.14.1-system-glslang.patch
)
# triggers on examples and other unused subdirs
CMAKE_QA_COMPAT_SKIP=1
# these are modules and do not need a soname
QA_SONAME="
usr/lib.*/libslang-glsl-module-.*.so
usr/lib.*/libslang-glslang-.*.so
"
src_configure() {
# https://github.com/shader-slang/slang/issues/6330
use elibc_musl && append-lfs-flags
local mycmakeargs=(
-DSLANG_ENABLE_PCH=no
-DSLANG_ENABLE_SLANG_GLSLANG=yes
-DSLANG_ENABLE_SPLIT_DEBUG_INFO=no
-DSLANG_USE_SYSTEM_GLSLANG=yes
-DSLANG_USE_SYSTEM_LZ4=yes
-DSLANG_USE_SYSTEM_MINIZ=yes
-DSLANG_USE_SYSTEM_SPIRV_HEADERS=yes
-DSLANG_USE_SYSTEM_SPIRV_TOOLS=yes
-DSLANG_USE_SYSTEM_VULKAN_HEADERS=yes
-DSLANG_VERSION_{FULL,NUMERIC}=${PV}
# avoid collisions with sys-libs/slang
-DCMAKE_INSTALL_INCLUDEDIR=include/${PN}
-DSLANG_ENABLE_SLANG_PROXY=no
# options disabled for simplicity, will revisit only if needed
# (some have issues ranging from build failure to live fetching)
-DSLANG_ENABLE_AFTERMATH=no
-DSLANG_ENABLE_CUDA=no
-DSLANG_ENABLE_DXIL=no
-DSLANG_ENABLE_EXAMPLES=no
-DSLANG_ENABLE_GFX=no
-DSLANG_ENABLE_OPTIX=no
-DSLANG_ENABLE_SLANG_RHI=no
-DSLANG_ENABLE_TESTS=no
-DSLANG_SLANG_LLVM_FLAVOR=DISABLE
)
cmake_src_configure
}
src_install() {
local DOCS=()
cmake_src_install
mv -- "${ED}"/usr/share/doc/{slang,${PF}} || die
}
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