Cleanup

Cleanup of 8bdb105897.

Add build macro to configuration header and documentation.  Add
corresponding CMake option.  Add change log entry and credit.  Add
loader static library to link dependencies and add detection to
FindVulkan.cmake.

src/glfw_config.h.in

@@ -47,6 +47,8 @@
 
 // Define this to 1 if building as a shared library / dynamic library / DLL
 #cmakedefine _GLFW_BUILD_DLL
+// Define this to 1 to use Vulkan loader linked statically into application
+#cmakedefine _GLFW_VULKAN_STATIC
 
 // Define this to 1 to force use of high-performance GPU on hybrid systems
 #cmakedefine _GLFW_USE_HYBRID_HPG

src/internal.h

@@ -450,10 +450,10 @@ struct _GLFWlibrary
         void*           handle;
         char**          extensions;
         uint32_t        extensionCount;
-        #if !defined(_GLFW_VULKAN_STATIC)
-          PFN_vkEnumerateInstanceExtensionProperties EnumerateInstanceExtensionProperties;
-          PFN_vkGetInstanceProcAddr GetInstanceProcAddr;
-        #endif
+#if !defined(_GLFW_VULKAN_STATIC)
+        PFN_vkEnumerateInstanceExtensionProperties EnumerateInstanceExtensionProperties;
+        PFN_vkGetInstanceProcAddr GetInstanceProcAddr;
+#endif
         GLFWbool        KHR_surface;
         GLFWbool        KHR_win32_surface;
         GLFWbool        KHR_xlib_surface;

src/vulkan.c

@@ -80,7 +80,6 @@ GLFWbool _glfwInitVulkan(void)
         _glfwTerminateVulkan();
         return GLFW_FALSE;
     }
-
 #endif // _GLFW_VULKAN_STATIC
 
     err = vkEnumerateInstanceExtensionProperties(NULL, &count, NULL);