Remove support for Universal Binaries

CMakeLists.txt

@@ -30,7 +30,6 @@ if (WIN32)
 endif()
 
 if (APPLE)
-    option(GLFW_BUILD_UNIVERSAL "Build GLFW as a Universal Binary" OFF)
     option(GLFW_USE_CHDIR "Make glfwInit chdir to Contents/Resources" ON)
     option(GLFW_USE_MENUBAR "Populate the menu bar on first window creation" ON)
     option(GLFW_USE_RETINA "Use the full resolution of Retina displays" ON)
@@ -340,13 +339,6 @@ if (_GLFW_COCOA AND _GLFW_NSGL)
         set(_GLFW_USE_RETINA 1)
     endif()
 
-    if (GLFW_BUILD_UNIVERSAL)
-        message(STATUS "Building GLFW as Universal Binaries")
-        set(CMAKE_OSX_ARCHITECTURES i386;x86_64)
-    else()
-        message(STATUS "Building GLFW only for the native architecture")
-    endif()
-
     # Set up library and include paths
     find_library(COCOA_FRAMEWORK Cocoa)
     find_library(IOKIT_FRAMEWORK IOKit)

docs/compile.dox

@@ -201,8 +201,6 @@ directory of bundled applications to the `Contents/Resources` directory.
 `GLFW_USE_RETINA` determines whether windows will use the full resolution of
 Retina displays.
 
-`GLFW_BUILD_UNIVERSAL` determines whether to build Universal Binaries.
-
 
 @subsubsection compile_options_win32 Windows specific CMake options