Re: [Haskell-cafe] Re: dynamic loading of code on windows

Hello Arnaud, I also faced this problem with the plugins package. This particular error comes from the backslashes in the ghc library directory not being escaped. But even after patching this, I had trouble with missing imports and some other stuff. It seams that this package is not much used/tested under Windows. At the end I gave up using it and switched to hint (like Alberto pointed out before). Mathias Am 13.11.2010 19:41, schrieb Arnaud Bailly:

Hello again, So I followed Kevin's suggestion and installed MinGW along with gcc and autoconf tools needed by hs-plugins. Then it failed with the following error:

$ cabal install --enable-documentation plugins Resolving dependencies... Configuring plugins-1.5.1.4... checking build system type... i686-pc-mingw32 checking for ghc... ghc checking for value of __GLASGOW_HASKELL__... 612 checking for ghc library directory... D:\Program Files\Haskell Platform\2010.2.0 .0\lib checking for gcc... gcc checking for C compiler default output file name... a.exe checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... .exe checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ANSI C... none needed checking for arc4random... no checking for a BSD-compatible install... /usr/bin/install -c configure: creating ./config.status config.status: creating config.mk config.status: creating testsuite/makewith/io/TestIO.conf config.status: creating testsuite/makewith/unsafeio/Unsafe.conf config.status: creating config.h Preprocessing library plugins-1.5.1.4... Building plugins-1.5.1.4... [ 1 of 12] Compiling System.Plugins.Process ( src\System\Plugins\Process.hs, dis t\build\System\Plugins\Process.o ) [ 2 of 12] Compiling System.Plugins.Parser ( src\System\Plugins\Parser.hs, dist\ build\System\Plugins\Parser.o ) [ 3 of 12] Compiling System.Plugins.LoadTypes ( src\System\Plugins\LoadTypes.hs, dist\build\System\Plugins\LoadTypes.o ) [ 4 of 12] Compiling System.Plugins.Consts ( src\System\Plugins\Consts.hs, dist\ build\System\Plugins\Consts.o )

src\System\Plugins\Consts.hs:39:22: lexical error in string/character literal at character 'P' cabal.exe: Error: some packages failed to install: plugins-1.5.1.4 failed during the building phase. The exception was: ExitFailure 1

Any clues? Should I try to use latest source tree? I am really interested in the plugins approach, rather than the interpreter approach. What I am trying to achieve is a system similar to Yi as presented in Don Stewart's paper (http://www.cse.unsw.edu.au/~dons/papers/yi.pdf), but much simpler, of course. The system would load modules as found in some known location, run tests found here before really accepting them, then use them, with the possibility of replacing those modules when a newer version is found. The idea is to provide a self-tested and continuously running system for development, something that might be reminiscent of Smalltalk although I never programmed in Smalltalk.

Thanks in advance for advises,

REgards, Arnaud

On Fri, Nov 12, 2010 at 8:49 PM, Alberto G. Corona wrote:

...

I use Hint for the same purpose. It has been tested under windows

2010/11/12 Arnaud Bailly

...

Hello Kevin, Thanks. I understand that this is a toolchain issue, I just got used to the nice feeling of having 'cabal install foo' works seamlessly and flawlessly to get me some magic piece of software :-) I will try to be more patient and try to setup a proper toolchain for installing plugins package.

Arnaud

On Fri, Nov 12, 2010 at 7:01 PM, Kevin Jardine wrote:

...

This isn't about the plugin functionality, it's about compiling code.

As the message says :

This requires a Unix compatibility toolchain such as MinGW+MSYS or Cygwin.

You'll find that you need such a toolchain to compile much open source software, including many Haskell modules, on Windows.

Personally I use MinGW+MSYS on my Windows machine. It works very well.

Kevin

On Nov 12, 3:20 pm, Arnaud Bailly wrote:

...

Hello, I recently tried to

cabal install plugins

on a windows box and it failed with the following error:

Resolving dependencies... Downloading plugins-1.5.1.4... Configuring plugins-1.5.1.4... cabal: The package has a './configure' script. This requires a Unix compatibility toolchain such as MinGW+MSYS or Cygwin. cabal: Error: some packages failed to install: plugins-1.5.1.4 failed during the configure step. The exception was: ExitFailure 1

What solution can I use to load dynamically code in a cross-platform way ?

Thanks in advance Arnaud _______________________________________________ Haskell-Cafe mailing list

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