opt/glslang/Pkgfile

# Description: OpenGL and OpenGL ES shader front end and validator
# URL: https://www.khronos.org/opengles/sdk/tools/Reference-Compiler
# Maintainer: Danny Rawlins, crux at romster dot me
# Depends on: spirv-tools
# Optional: ninja

name=glslang
version=11.10.0
release=1
source=(https://github.com/KhronosGroup/glslang/archive/$version/$name-$version.tar.gz
	glslang-default-resource-limits_staticlib.patch
	0001-pkg-config-compatibility.patch)

build() {
	patch -d $name-$version -p1 -i $SRC/glslang-default-resource-limits_staticlib.patch

	# https://patch-diff.githubusercontent.com/raw/KhronosGroup/glslang/pull/1722.patch#/0001-pkg-config-compatibility.patch
	patch -d $name-$version -p1 -i $SRC/0001-pkg-config-compatibility.patch

	find $SRC -name '*.h' -or -name '*.cpp' -or -name '*.hpp'| xargs chmod a-x

	prt-get isinst ninja && PKGMK_GLSLANG+=' -G Ninja'
	prt-get isinst ccache && \
		PKGMK_GLSLANG+=' -D USE_CCACHE=ON' && \
		PATH="$(echo ${PATH} | awk -v RS=: -v ORS=: '/ccache/ {next} {print}' | sed 's/:*$//')"

	local config="
		-S $name-$version
		-D CMAKE_INSTALL_PREFIX=/usr
		-D CMAKE_INSTALL_LIBDIR=lib
		-D CMAKE_BUILD_TYPE=Release
		-D CMAKE_SKIP_RPATH=yes
		-Wno-dev"

	cmake -B build-static $config $PKGMK_GLSLANG \
		-D BUILD_SHARED_LIBS=OFF \
		-D CMAKE_CXX_FLAGS_RELEASE="${CXXFLAGS} -ffat-lto-objects"
	cmake --build build-static

	# https://github.com/KhronosGroup/glslang/issues/1484 -Wl,--no-undefined
	cmake -B build-shared $config $PKGMK_GLSLANG \
		-D BUILD_SHARED_LIBS=ON \
		-D CMAKE_CXX_FLAGS_RELEASE="${CXXFLAGS} -ffat-lto-objects" \
		-D CMAKE_SHARED_LINKER_FLAGS='-Wl,--no-undefined'
	cmake --build build-shared

	DESTDIR=$PKG cmake --build build-static --target install
	DESTDIR=$PKG cmake --build build-shared --target install
}