> Can you link cpp to some cpp.exe and try again? That would at least > pin down the cause.
I don't think I understand. I do have a cpp on the path already. I think (at least one) problem could be that ghc-pkg's $topdir is being expanded to a filepath finishing in \ghc-6.12.1, instead of a path finishing in \ghc-6.12.1\lib. I'm not sure which tool is responsible for that expansion going wrong. For instance, $ ghc-pkg field haskell98 import-dirs import-dirs: C:/workspace/ext/ghc-6.12.1\lib\haskell98-1.0.1.1 But $ cabal build -v C:\workspace\ext\bin\gtk2hsC2hs.exe --include=dist\build ... --include=C:\workspace\ext\ghc-6.12.1\haskell98-1.0.1.1 Another problem is that the cabal-generated commandline for gtk2hsC2hs uses Windows-style backslashes for relative filepaths. This seems like a very weird interaction with MinGW. If I manually convert the commandline from C:\workspace\ext\bin\gtk2hsC2hs.exe --include=dist\build --include=C:\workspace\ext\ghc-6.12.1\base-4.2.0.0 --include=C:\workspace\ext\ghc-6.12.1\containers-0.3.0.0 --include=C:\workspace\ext\ghc-6.12.1\haskell98-1.0.1.1 --cppopts=-ISystem/Glib --cppopts=-IC:/msys/1.0/local/include/glib-2.0 --cppopts=-IC:/msys/1.0/local/lib/glib-2.0/include --cppopts=-DUSE_GCLOSURE_SIGNALS_IMPL --cppopts=-DHAVE_NEW_CONTROL_EXCEPTION --output-dir=dist\build\System\Glib --output=System\Glib\Properties.hs --precomp=dist\build\precompchs.bin glib-object.h .\System\Glib\Properties.chs to C:/workspace/ext/bin/gtk2hsC2hs.exe --include=dist/build --include=C:\workspace\ext\ghc-6.12.1\base-4.2.0.0 --include=C:\workspace\ext\ghc-6.12.1\containers-0.3.0.0 --include=C:\workspace\ext\ghc-6.12.1\haskell98-1.0.1.1 --cppopts=-ISystem/Glib --cppopts=-IC:/msys/1.0/local/include/glib-2.0 --cppopts=-IC:/msys/1.0/local/lib/glib-2.0/include --cppopts=-DUSE_GCLOSURE_SIGNALS_IMPL --cppopts=-DHAVE_NEW_CONTROL_EXCEPTION --output-dir=dist/build/System/Glib --output=System/Glib/Types.hs --precomp=dist\build\precompchs.bin glib-object.h ./System/Glib/Types.chs (noting that I did not convert the slashes in all paths, just some), then this command completes without an error message. Whether its output is correct is entirely another matter, but I can't check that right now. Regards, Malcolm This email and any attachments are confidential and may also be privileged. If you are not the addressee, do not disclose, copy, circulate or in any other way use or rely on the information contained in this email or any attachments. If received in error, notify the sender immediately and delete this email and any attachments from your system. Emails cannot be guaranteed to be secure or error free as the message and any attachments could be intercepted, corrupted, lost, delayed, incomplete or amended. Standard Chartered PLC and its subsidiaries do not accept liability for damage caused by this email or any attachments and may monitor email traffic. Standard Chartered PLC is incorporated in England with limited liability under company number 966425 and has its registered office at 1 Aldermanbury Square, London, EC2V 7SB. Standard Chartered Bank ("SCB") is incorporated in England with limited liability by Royal Charter 1853, under reference ZC18. The Principal Office of SCB is situated in England at 1 Aldermanbury Square, London EC2V 7SB. In the United Kingdom, SCB is authorised and regulated by the Financial Services Authority under FSA register number 114276. If you are receiving this email from SCB outside the UK, please click http://www.standardchartered.com/global/email_disclaimer.html to refer to the information on other jurisdictions. ------------------------------------------------------------------------------ _______________________________________________ Gtk2hs-devel mailing list Gtk2hs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gtk2hs-devel