Compile Paths module independently

[dag]

Fay is currently experimenting with replacing the base package with a fay-base package, but this is leading to build failures in fay-jquery which exposes its Paths_fay_jquery module. Cabal tries to build that module with the same flags as the other modules, but it's importing lots of modules from the base package that fay-base isn't exporting.

Besides Fay, this is not the first time a problem has appeared due to Cabal building this generated module with the same flags as the library; these bugs are all a result of this: #907 and #1000, #994, #1137.

The module itself is written with assumptions about how the .cabal file is written, assumptions that quickly break down in different setups.

[tfausak]

👍 I just ran into this problem by combining OverloadedStrings and RebindableSyntax. See this Gist for a small, complete example.

[jneira]

• Closing in favour of Stop using Prelude at all in autogenerated Paths_<packageName>.hs modules #7761 as the root cause is the use of the standard prelude in the autogen modules
• Feel free to reopen or comment in such issue