Add glfwInitHint

This allows setting hints that control how the library is initialized,
transforming more compile-time options into run-time ones.

src/cocoa_init.m

@@ -28,8 +28,6 @@
 #include <sys/param.h> // For MAXPATHLEN
 
 
-#if defined(_GLFW_USE_CHDIR)
-
 // Change to our application bundle's resources directory, if present
 //
 static void changeToResourcesDirectory(void)
@@ -66,8 +64,6 @@ static void changeToResourcesDirectory(void)
     chdir(resourcesPath);
 }
 
-#endif /* _GLFW_USE_CHDIR */
-
 // Create key code translation tables
 //
 static void createKeyTables(void)
@@ -294,6 +290,9 @@ int _glfwPlatformInit(void)
 {
     _glfw.ns.autoreleasePool = [[NSAutoreleasePool alloc] init];
 
+    if (_glfw.hints.init.ns.chdir)
+        changeToResourcesDirectory();
+
     _glfw.ns.listener = [[GLFWLayoutListener alloc] init];
     [[NSNotificationCenter defaultCenter]
         addObserver:_glfw.ns.listener
@@ -301,10 +300,6 @@ int _glfwPlatformInit(void)
                name:NSTextInputContextKeyboardSelectionDidChangeNotification
              object:nil];
 
-#if defined(_GLFW_USE_CHDIR)
-    changeToResourcesDirectory();
-#endif
-
     createKeyTables();
 
     _glfw.ns.eventSource = CGEventSourceCreate(kCGEventSourceStateHIDSystemState);
@@ -376,12 +371,6 @@ void _glfwPlatformTerminate(void)
 const char* _glfwPlatformGetVersionString(void)
 {
     return _GLFW_VERSION_NUMBER " Cocoa NSGL"
-#if defined(_GLFW_USE_CHDIR)
-        " chdir"
-#endif
-#if defined(_GLFW_USE_MENUBAR)
-        " menubar"
-#endif
 #if defined(_GLFW_BUILD_DLL)
         " dynamic"
 #endif