gtk2hs does not install on haskell platform under windows

[guest]

I just tried the new haskell platform installer under Windows XP. When subsequently trying to install gtk2hs 0.10.0, the installer complains that ghc 6.10.1 in required (the platform is 6.10.2) and that i need to fix the searchpath myself (any help on how to do this?). Cabal cannot install cairo/gtk dependent pkgs.

[guest]

As far as I understood, the version of Ghc should always match the one the Gtk2Hs installer requires. However, I have the same problem with Gtk2Hs 0.10.1 (which requires Ghc 6.10.3) and a fresh Haskell Platform 2009.2.0.1 that features Ghc 6.10.3. I deleted all of my previous installations. I checked that environment variables were ok and that the compiler used by the installation process was the correct one. I used the win32 installer under Windows XP. Installation actually performed ok; I just have to "fix the DLL search path problem", and I don't know how to do this me neither. The PATH environment variable already points to the bin directory.

[guest]

I am having exactly the same problem here. I have a freshly installed WinXP SP2, in it I installed the most recent Haskell Platform (2009.2.0.1) with no problems.

Then in the installation of Gtk2Hs a message was shown saying I had to fix the search path myself. How can I do that?

Just thinking if it's not the time for Gtk2Hs to become cabalized...

[guest]

The problem has to do with whitespace in the path to ghc. I had the same problem with Haskell Platform, but then reinstalled it to a path without whitespaces (instead of c:\Program Files\Haskell Platform\version it became c:\progr\HaskellPlatform?\version) and then the gtk2hs installation worked as it should.

[guest]

error log of installation

[guest]

I've just run into this problem as well. The installer talks about a "broken install", which is indeed caused by the spaces in the install path. When removing them, the gtk2hs installer changes its error message to "Wrong version of GHC", which is correct since I'm using the newest Haskell Platform (downloading an older release now...)

Any clue what causes this? Considering that the haskell platform installer installs into Program Files by default, not allowing spaces isn't really working...

[guest]

I believe the problem is in the ExecOutput function, where the line:

    if Exec(ExpandConstant('{cmd}'), '/C ' + Filename + ' ' + Params + ' > ' + TmpFile,

should add quotes around Filename:

    if Exec(ExpandConstant('{cmd}'), '/C "' + Filename + '" ' + Params + ' > ' + TmpFile,

[guest]

Is the solution from guest really the only problem with using the gtk2hs installer with the current haskell platform? Any change to see a release that works with 6.10.4 soon? --Joachim

[guest]

I can add that the installer provided by Duncan at http://www.mail-archive.com/gtk2hs-devel@lists.sourceforge.net/msg00340.html works fine with a ghc that has spaces in the path.

[duncan]

Replying to guest:

I believe the problem is in the ExecOutput function, where the line: {{{ if Exec(ExpandConstant?('{cmd}'), '/C ' + Filename + ' ' + Params + ' > ' + TmpFile?, }}} should add quotes around Filename: {{{ if Exec(ExpandConstant?('{cmd}'), '/C "' + Filename + '" ' + Params + ' > ' + TmpFile?, }}}

I believe this is the correct fix (but I've not done a full end-to-end test).

Also, I don't think my installer does work with spaces. It does not contain the above fix.

[axel]

While 0.11.0 doesn't have a Windows installer, I hope that installing from sources is easy enough that a separate installer is not necessary. If people feel strongly about this and want an installer, we can reopen this ticket.