Mac OS X
From uGFX Wiki
µGFX can be run natively on a Mac OS X system. This simplifies the process of developing your embedded GUI application a lot.
Dependencies
Make sure you got clang and XQuartz installed.
Makefile
Copy the makefile that can be found in /boards/base/OSX/example/ to your project directory.
You need to set the OSX_SDK and OSX_ARCH variables: