KleMiX/tiled — comment on commit ee60f133fc6c92b742984a1b26a0257a9db5800e
File: src/tiled/tiled.pro line 21
By mpjeff:

Looking at what gets passed to the linker when building tiled, it includes these flags:
-framework QtOpenGL -framework QtGui -framework QtCore -framework OpenGL -framework AGL

Since OpenGL and AGL frameworks are in the same folder as Foundation, it seems like it should be able to find Foundation if it can find the others. Can you try commenting this line again? Do you get the "framework not found" error or something else?