Resolving dependencies... Downloading thread-local-storage-0.1.0.1... Configuring thread-local-storage-0.1.0.1... Building thread-local-storage-0.1.0.1... Failed to install thread-local-storage-0.1.0.1 Build log ( /home/builder/.cabal/logs/thread-local-storage-0.1.0.1.log ): cabal: Entering directory '/tmp/cabal-tmp-30472/thread-local-storage-0.1.0.1' Configuring thread-local-storage-0.1.0.1... Building thread-local-storage-0.1.0.1... Preprocessing library thread-local-storage-0.1.0.1... Data/TLS/GHC.hs:26:0: error: fatal error: TLS_Sig.hs: No such file or directory #include "TLS_Sig.hs" ^ compilation terminated. `gcc' failed in phase `C pre-processor'. (Exit code: 1) cabal: Leaving directory '/tmp/cabal-tmp-30472/thread-local-storage-0.1.0.1' cabal: Error: some packages failed to install: thread-local-storage-0.1.0.1 failed during the building phase. The exception was: ExitFailure 1