Re: libiconv detection failure

[Eric Blake]

On 10/21/2014 03:30 AM, Daiki Ueno wrote:
> Werner LEMBERG <address@hidden> writes:
> 
>>>> Given that the intention of the above test is to check if the iconv
>>>> function works properly, maybe a workaround would be to use the
>>>> fixed prototype of iconv (as attached)?
>>>
>>> Sorry, that was obviously wrong.  The other idea is to suppress the
>>> error with a pragma, but I guess it would be better to actually
>>> check the prototype in AM_ICONV_LINK.
>>
>> What about using m4_foreach, running the link tests with and without
>> `const'?

m4_foreach causes the loop to be expanded at m4 time (a larger configure
file).  In this case, you could probably easily get by with a shell loop
instead, for a smaller configure file (untested):

       for type in 'char **' 'const char **'; do
         AC_RUN_IFELSE([AC_LANG_PROGRAM([[
           ...
           typedef $type gl_iconv_buf_t;

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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