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

[Karel Gardas]

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
> 
> 
>