Re: [Bug-readline] Readline 6.3 cross-compilation fails

[Chet Ramey]

On 3/20/14 1:58 PM, Ludovic Courtès wrote:
> Chet Ramey <address@hidden> skribis:
> 
>> On 3/19/14 6:26 PM, Ludovic Courtès wrote:
>>> Hi,
>>>
>>> Readline 6.3’s configure fails when cross-compiling:
>>>
>>> --8<---------------cut here---------------start------------->8---
>>> [...]
>>>
>>> checking whether mbrtowc and mbstate_t are properly declared... yes
>>> checking for iswlower... yes
>>> checking for iswupper... yes
>>> checking for towlower... yes
>>> checking for towupper... yes
>>> checking for iswctype... yes
>>> checking for nl_langinfo and CODESET... yes
>>> checking for wchar_t in wchar.h... yes
>>> checking for wctype_t in wctype.h... yes
>>> checking for wint_t in wctype.h... yes
>>> checking for wcwidth broken with unicode combining characters... configure: 
>>> error: in `/tmp/nix-build-readline-6.3.drv-0/readline-6.3':
>>> configure: error: cannot run test program while cross compiling
>>> See `config.log' for more details
>>> --8<---------------cut here---------------end--------------->8---
>>>
>>> I fixed it in Guix by passing bash_cv_wcwidth_broken=no:
>>>
>>>   
>>> http://git.savannah.gnu.org/cgit/guix.git/commit/?id=f6d47eb6d5e046abc8a7a7dc0863c5661197ef0d
>>>
>>> A fix might be to conservatively set bash_cv_wcwidth_broken=yes in the
>>> fourth arm of AC_TRY_RUN (or better, AC_RUN_IFELSE.)
>>
>> I can't see how changing the default from `no' to `yes' is going to make a
>> difference.
> 
> Oh sorry, I hadn’t noticed there’s already a fourth argument.
> 
> Looking at the generated configure file, that argument is clearly
> ignored:

Yeah, it looks like a stale `configure'.  You can regenerate it using
autoconf and it should work just fine.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/