Resolving dependencies...
Configuring fs-events-0.1...
Building fs-events-0.1...
Failed to install fs-events-0.1
Build log ( /home/builder/.cabal/logs/fs-events-0.1.log ):
cabal: Entering directory '/tmp/cabal-tmp-14165/fs-events-0.1'
Configuring fs-events-0.1...
Building fs-events-0.1...
Preprocessing library fs-events-0.1...
[1 of 1] Compiling System.FSEvents  ( src/System/FSEvents.hs, dist/build/System/FSEvents.o )

In file included from Watcher.c:1:0: error: 

Watcher.h:1:43: error:
     fatal error: CoreFoundation/CoreFoundation.h: No such file or directory
     #include <CoreFoundation/CoreFoundation.h>
                                               ^
compilation terminated.
`gcc' failed in phase `C Compiler'. (Exit code: 1)
cabal: Leaving directory '/tmp/cabal-tmp-14165/fs-events-0.1'
cabal: Error: some packages failed to install:
fs-events-0.1 failed during the building phase. The exception was:
ExitFailure 1