zlib build error with GHC

Question

I\'m using a VM with the following configuration:

• Arch Linux (3.0-ARCH kernel)
• GHC 7.0.3
• cabal-install 0.10.2
• Cabal library 1.10.1.0

Answer 1

For some reason, the MIN_VERSION_base macro doesn't get expanded, thus the preprocessor sees the condition MIN_VERSION_base(4,4,0) which it of course cannot handle. I've not yet found out why the macro isn't expanded, but workarounds are

1. install zlib-0.5.3.1 instead
2. unpack the tarball and edit Codec/Compression/Zlib/Stream.hsc to remove the offending macro (you're using 7.0.3, so your base version is 4.3.1.0, you can replace the macro with 0)

Edit: After poking around a bit, I found out that to hide these preprocessor directives, which aren't intended for hsc2hs to process, they have to be masked by an extra '#'. Bug report underway.