Mountain Lion X11 libraries can't ./configure

Question

I\'m trying to build xmonad in Mountain Lion to run with Xquartz 2.7.2, tutorial found here .

I\'m using cabal to get required X11 libraries cabal install X11-

Answer 1

The toolchain won't find X11 in /opt. You need to either install X11 to a place where it can be found by the compiler/linker by default, or pass relevant -I and -L flags down to the corresponding tools. I hear this works:

 env CPPFLAGS="-I/opt/X11/include" LDFLAGS="-L/opt/X11/lib" your-build-command

though I personally just symlink everything to /usr/{lib,include}.