Add TARGET_VULKAN option

Signed-off-by: Squareys <Squareys@googlemail.com>

CMakeLists.txt

@@ -53,6 +53,7 @@ endif()
 cmake_dependent_option(TARGET_GLES2 "Build for OpenGL ES 2 / WebGL 1.0" ON "TARGET_GLES" OFF)
 cmake_dependent_option(TARGET_DESKTOP_GLES "Build for OpenGL ES on desktop" OFF "TARGET_GLES" OFF)
 option(TARGET_HEADLESS "Build command-line utilities for use on a headless machines" OFF)
+option(TARGET_VULKAN "Build for Vulkan" OFF)
 
 # Magnum Info (currently only using GLX, CGL, WGL/EGL on Windows or on NaCl)
 if(CORRADE_TARGET_UNIX OR CORRADE_TARGET_NACL OR CORRADE_TARGET_WINDOWS)
@@ -211,6 +212,9 @@ endif()
 if(TARGET_HEADLESS)
     set(MAGNUM_TARGET_HEADLESS 1)
 endif()
+if(TARGET_VULKAN)
+    set(MAGNUM_TARGET_VULKAN 1)
+endif()
 
 if(CORRADE_TARGET_EMSCRIPTEN)
     include(UseEmscripten)

src/Magnum/configure.h.cmake

@@ -33,6 +33,7 @@
 #cmakedefine MAGNUM_TARGET_GLES3
 #cmakedefine MAGNUM_TARGET_DESKTOP_GLES
 #cmakedefine MAGNUM_TARGET_WEBGL
+#cmakedefine MAGNUM_TARGET_VULKAN
 #cmakedefine MAGNUM_TARGET_HEADLESS
 
 #endif