spirv-tools: add package

Add spirv-tools required to build Intel Vulkan driver.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

libs/spirv-tools/Makefile

@@ -0,0 +1,48 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=spirv-tools
+PKG_VERSION:=1.3.296.0
+
+PKG_SOURCE:=SPIRV-Tools-vulkan-sdk-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://codeload.github.com/KhronosGroup/SPIRV-Tools/tar.gz/vulkan-sdk-$(PKG_VERSION)?
+PKG_HASH:=75aafdf7e731b4b6bfb36a590ddfbb38ebc605d80487f38254da24fe0cb95837
+
+PKG_BUILD_DIR:=$(BUILD_DIR)/SPIRV-Tools-vulkan-sdk-$(PKG_VERSION)
+HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/SPIRV-Tools-vulkan-sdk-$(PKG_VERSION)
+
+PKG_BUILD_DEPENDS:=spirv-headers
+HOST_BUILD_DEPENDS:=spirv-headers/host
+
+CMAKE_BINARY_SUBDIR:=build
+CMAKE_INSTALL:=1
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/host-build.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+CMAKE_OPTIONS += \
+	-DSPIRV-Headers_SOURCE_DIR=$(STAGING_DIR)/usr \
+	-DSPIRV_SKIP_TESTS=ON
+
+CMAKE_HOST_OPTIONS += \
+	-DSPIRV-Headers_SOURCE_DIR=$(STAGING_DIR_HOSTPKG) \
+	-DSPIRV_SKIP_TESTS=ON
+
+define Package/spirv-tools
+  SECTION:=devel
+  CATEGORY:=Development
+  TITLE:=SPIR-V Tools
+  URL:=https://github.com/KhronosGroup/SPIRV-Tools
+  BUILDONLY:=1
+endef
+
+define Package/spirv-tools/description
+The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
+endef
+
+define Package/spirv-tools/install
+true
+endef
+
+$(eval $(call BuildPackage,spirv-tools))
+$(eval $(call HostBuild))