Add Vulkan (#4462)

packages/vulkan_headers.rb

+# Adapted from Arch Linux vulkan-headers PKGBUILD at:
+# https://github.com/archlinux/svntogit-packages/raw/packages/vulkan-headers/trunk/PKGBUILD
+
+require 'package'
+
+class Vulkan_headers < Package
+  description 'Vulkan header files'
+  version '1.2.157'
+  compatibility 'all'
+  source_url 'https://github.com/KhronosGroup/Vulkan-Headers/archive/v1.2.157.tar.gz'
+  source_sha256 'dbc121f58641acd45c386ee96ecd5e10a124c489087443d7367fff4b53b49283'
+
+  depends_on 'cmake'
+  depends_on 'git'
+  depends_on 'cmake' => ':build'
+  depends_on 'git' => ':build'
+
+	def self.build
+		system 'mkdir build'
+		Dir.chdir ("build") do
+		system "cmake -DCMAKE_INSTALL_PREFIX=#{CREW_PREFIX} \
+			-DCMAKE_INSTALL_LIBDIR=#{CREW_LIB_PREFIX} \
+			-DCMAKE_BUILD_TYPE=Release \
+			.. && make"
+		end
+	end
+	
+	def self.install
+	Dir.chdir ("build") do
+		system 'make',
+			"DESTDIR=#{CREW_DEST_DIR}",
+			'install'
+		end
+	end
+end

packages/vulkan_icd_loader.rb

+# Adapted from Arch Linux vulkan-icd-loader PKGBUILD at:
+# https://github.com/archlinux/svntogit-packages/raw/packages/vulkan-icd-loader/trunk/PKGBUILD
+
+require "package"
+
+class Vulkan_icd_loader < Package
+  description "Vulkan Installable Client Driver ICD Loader"
+  version "1.2.153-2"
+  source_url "https://github.com/KhronosGroup/Vulkan-Loader/archive/v1.2.153.tar.gz"
+  source_sha256 "5fb906b2dc968f2256f2d09b093ec8cc7f19812d656c649de8ed709a6da63d4a"
+
+  depends_on "cmake"
+  depends_on "libx11"
+  depends_on "libxrandr"
+  depends_on "vulkan_headers"
+  depends_on "git"
+  depends_on "cmake" => ":build"
+  depends_on "libx11" => ":build"
+  depends_on "libxrandr" => ":build"
+  depends_on "wayland" => ":build"
+  depends_on "vulkan_headers" => ":build"
+  depends_on "git" => ":build"
+  depends_on "llvm" => ":build"
+
+  def self.build
+      ENV['CC'] = 'clang'
+      ENV['CXX'] = 'clang'
+      system 'mkdir build'
+      Dir.chdir ("build") do
+      system "cmake -DCMAKE_INSTALL_PREFIX=#{CREW_PREFIX} \
+        -DVULKAN_HEADERS_INSTALL_DIR=#{CREW_PREFIX} \
+        -DCMAKE_INSTALL_LIBDIR=#{CREW_LIB_PREFIX} \
+        -DCMAKE_INSTALL_SYSCONFDIR=#{CREW_PREFIX}/etc \
+        -DCMAKE_INSTALL_DATADIR=#{CREW_PREFIX}/share \
+        -DCMAKE_SKIP_RPATH=True \
+        -DBUILD_TESTS=Off \
+        -DBUILD_WSI_XCB_SUPPORT=On \
+        -DBUILD_WSI_XLIB_SUPPORT=On \
+        -DBUILD_WSI_WAYLAND_SUPPORT=On \
+        -DCMAKE_BUILD_TYPE=Release \
+        .. && make"
+        end
+  end
+  
+  def self.install
+    Dir.chdir ("build") do
+      system 'make',
+      "DESTDIR=#{CREW_DEST_DIR}",
+      'install'
+      end
+  end
+end