Re: ghc-6.6 + cabal-1.6 - can't find header files

On Tue, 2009-01-27 at 22:08 +0000, Alistair Bayley wrote:

2009/1/27 Duncan Coutts :

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On Tue, 2009-01-27 at 19:02 +0000, Alistair Bayley wrote:

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2009/1/27 Alistair Bayley :

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I'm puzzled as to why this build fails (ghc-6.6.1, cabal-1.6 (actually HEAD, I think, but close enough, and winXP). The sqlite.h header file is in C:\Progra~1\sqlite3\, which is clearly given with the -I option.

Turns out it's the trailing backslash in the path C:\Progra~1\sqlite3\ (same error for slashes, too). !?

I am very surprised. Is that problem at the gcc level? Does specifying paths with trailing dir separator cause this problem for gcc in a simple test case?

If it really is a problem with gcc on windows perhaps ghc can use an updated gcc in future releases or we could try stripping trailing dir separators on include dirs in Cabal.

I think it's only ghc-6.6, but I'll retest against 6.8 and 6.10. If it's only 6.6 then I'm not going to sweat it.

That doesn't make a lot of sense to me. It's gcc that finds the header files. It could be ghc-6.6 that is somehow messing up passing flags on to gcc, but that would also be surprising. You can build with -v and see how ghc is invoking gcc, and try those commands manually etc. Duncan