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

[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 <agocorona at gmail.com> wrote:
> I use Hint for the same purpose. It has been tested under windows
>
> 2010/11/12 Arnaud Bailly <arnaud.oqube at gmail.com>
>>
>> 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 <kevinjardine at gmail.com>
>> 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 <arnaud.oq... at gmail.com> 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
>> >> _______________________________________________
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