Resolving dependencies...
Configuring kqueue-0.1.2.5...
Building kqueue-0.1.2.5...
Preprocessing library kqueue-0.1.2.5...
dist/build/System/KQueue.chs.h:2:23: fatal error: sys/event.h: No such file or directory
compilation terminated.
c2hs: Error during preprocessing custom header file
Failed to install kqueue-0.1.2.5
cabal: Error: some packages failed to install:
kqueue-0.1.2.5 failed during the building phase. The exception was:
ExitFailure 1