Moved version number macro to internal.h.

This lets alternative build environments avoid having to manually keep
track of which version of GLFW is being built.

README.md

@@ -35,6 +35,7 @@ guide in the GLFW documentation.
    documentation is built
  - Added the `_GLFW_USE_CONFIG_H` configuration macro for controlling whether to
    include the configuration header
+ - Moved version number macro to `internal.h` for easier manual compilation
  - Renamed configuration header to `glfw_config.h` to avoid conflicts
  - Bugfix: The `glfw3.pc` file did not respect the `LIB_SUFFIX` CMake option
  - Bugfix: The `joysticks` test would segfault if a controller had no axes

src/cocoa_init.m

@@ -122,7 +122,7 @@ void _glfwPlatformTerminate(void)
 
 const char* _glfwPlatformGetVersionString(void)
 {
-    const char* version = _GLFW_VERSION_FULL " Cocoa"
+    const char* version = _GLFW_VERSION_NUMBER " Cocoa"
 #if defined(_GLFW_NSGL)
         " NSGL"
 #endif

src/glfw_config.h.in

@@ -81,6 +81,3 @@
 // Define this to 1 if using OpenGL ES 2.0 as the client library
 #cmakedefine _GLFW_USE_GLESV2
 
-// The GLFW version as used by glfwGetVersionString
-#define _GLFW_VERSION_FULL "@GLFW_VERSION_FULL@"
-

src/internal.h

@@ -33,6 +33,8 @@
  #include "glfw_config.h"
 #endif
 
+#define _GLFW_VERSION_NUMBER "3.0.4"
+
 #if defined(_GLFW_USE_OPENGL)
  // This is the default for glfw3.h
 #elif defined(_GLFW_USE_GLESV1)

src/win32_init.c

@@ -243,7 +243,7 @@ void _glfwPlatformTerminate(void)
 
 const char* _glfwPlatformGetVersionString(void)
 {
-    const char* version = _GLFW_VERSION_FULL " Win32"
+    const char* version = _GLFW_VERSION_NUMBER " Win32"
 #if defined(_GLFW_WGL)
         " WGL"
 #elif defined(_GLFW_EGL)

src/x11_init.c

@@ -680,7 +680,7 @@ void _glfwPlatformTerminate(void)
 
 const char* _glfwPlatformGetVersionString(void)
 {
-    const char* version = _GLFW_VERSION_FULL " X11"
+    const char* version = _GLFW_VERSION_NUMBER " X11"
 #if defined(_GLFW_GLX)
         " GLX"
 #elif defined(_GLFW_EGL)