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

name=glslang
version=7.13.3496
release=2
source=(https://github.com/KhronosGroup/glslang/archive/$version/$name-$version.tar.gz
	glslang-default-resource-limits_staticlib.patch
	glslang-lib-install.patch
	0001-pkg-config-compatibility.patch
	glslang-7.12.3353_pre20191027-fix-relative-includes.patch)

build() {
	cd $name-$version

	patch -p1 -i $SRC/glslang-default-resource-limits_staticlib.patch
	patch -p1 -i $SRC/glslang-lib-install.patch
	patch -p1 -i $SRC/glslang-7.12.3353_pre20191027-fix-relative-includes.patch

	# Patch to build against system spirv-tools
	patch -p1 -i $SRC/0001-pkg-config-compatibility.patch

	mkdir -p build-{shared,static}

	local config="
-DCMAKE_INSTALL_PREFIX=/usr \
-DCMAKE_INSTALL_LIBDIR=lib \
-DCMAKE_BUILD_TYPE=Release \
-GNinja"

	(cd build-shared
	cmake .. $config -DBUILD_SHARED_LIBS=ON
	ninja -j ${JOBS:-1}
	)

	(cd build-static
	cmake .. $config -DBUILD_SHARED_LIBS=OFF
	ninja -j ${JOBS:-1}
	)

	DESTDIR=$PKG ninja -C build-shared install
	DESTDIR=$PKG ninja -C build-static install

	cd $PKG/usr/lib
		for lib in *.so; do
		ln -sf "${lib}" "${lib}.0"
	done
}