How to solve ghc-stage2: mkTextEncoding: invalid argument (Invalid argument) issue.

[Christian Maeder]

I've experienced a similar problem under i386 solaris, see
http://www.haskell.org/pipermail/glasgow-haskell-users/2009-June/017376.html

The problem seems to be the file /usr/local/include/iconv.h without a
corresponding library.

HTH Christian

Karel Gardas wrote:
> Before going to trace anything I've compared sparky and my setup and it
> seems I've had forgotten libiconv library in /usr/local/lib and
> LD_LIBRARY_PATH contained this lib. So I've modified LD_LIBRARY_PATH to
> exclude /usr/local/lib and now surprisingly base configure fails with:
> 
> checking for library containing iconv... no
> configure: error: iconv is required on non-Windows platforms
> make[1]: *** [libraries/base/dist-install/package-data.mk] Error 1
> make: *** [all] Error 2
> 
> see:
> http://darcs.haskell.org/buildbot/all/builders/kgardas%20head/builds/205/steps/compile/logs/stdio
> 
> When I've seen the code it's not so surprising that it fails in this
> way, what's in fact surprising to me is that sparky passes belong this
> point:
> 
> checking for library containing iconv... none required
> configure: creating ./config.status
> config.status: creating base.buildinfo
> config.status: creating include/HsBaseConfig.h
> [...]
> 
> See:
> http://darcs.haskell.org/buildbot/head/builders/sparky%20head/builds/91/steps/compile/logs/stdio
> 
> I'm sorry for starting this #91 build on sparky, but I'd like verify
> that it does not build older source-code than my buildbot.
> 
> So now, the question is: is GNU iconv really required or if it's not,
> how to make my buildbot ignoring it as sparky's buldbot seems to be doing?
> 
> Thanks,
> Karel
> 
> Duncan Coutts wrote:
>> Dig into base/GHC/IO/Encoding/Iconv.hs mkTextEncoding function where it
>> calls iconv_open, see what it's being called with.
>>
>> In particular check if HAVE_LANGINFO_H is getting defined. If it's not
>> then the code assumes GNU iconv.
>>
>>> PS: for reference, please have a look at
>>> http://darcs.haskell.org/buildbot/all/builders/kgardas%20head
>> See also the
>>
>> http://darcs.haskell.org/buildbot/head/builders/sparky%20head
>>
>> Which is running Solaris 10 on sparc and seems to be working fine.
>>
>> Duncan
>>
>>
>>