[CMake] Help with libintl/configure tests

[Tim Holy]

On Wednesday 23 April 2008, you wrote:
> > So, I don't understand why this isn't discovering that these types have
> > been declared. Can anyone offer some insight?
>
> Best thing to do is to use --debug-trycompile. 

Thanks for the tip. The outcome, however, is not at all what I expected. Check 
this out (sorry that the line wrapping will make the shell command look 
weird):

tim at diva:/tmp/build-intl$ rm -r *
tim at diva:/tmp/build-intl$ cmake --debug-trycompile 
~/src/tux4kids/tuxmath/trunk/intl/
debug trycompile on
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Check size of void*
-- Check size of void* - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Looking for iconv
-- Looking for iconv - found
-- Found iconv library:
-- CMAKE_REQUIRED_INCLUDES:
-- CMAKE_REQUIRED_INCLUDES: /usr/include
-- Looking for include files HAVE_INTTYPES_H
-- Looking for include files HAVE_INTTYPES_H - found
-- Looking for snprintf
-- Looking for snprintf - found
-- Looking for asprintf
-- Looking for asprintf - found
-- Looking for wprintf
-- Looking for wprintf - found
-- Looking for printf
-- Looking for printf - found
-- Looking for intmax_t
-- Looking for intmax_t - found
-- Looking for uintmax_t
-- Looking for uintmax_t - found
-- Looking for LC_MESSAGES
-- Looking for LC_MESSAGES - found
-- Check size of intmax_t
-- Check size of intmax_t - done
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/build-intl

It works! It works! Now I don't have to debug anything, since it suddenly 
works. So, let's turn off the debugging:

tim at diva:/tmp/build-intl$ rm -r *
tim at diva:/tmp/build-intl$ cmake ~/src/tux4kids/tuxmath/trunk/intl/
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc -- works
-- Check size of void*
-- Check size of void* - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Looking for iconv
-- Looking for iconv - found
-- Found iconv library:
-- CMAKE_REQUIRED_INCLUDES:
-- CMAKE_REQUIRED_INCLUDES: /usr/include
-- Looking for include files HAVE_INTTYPES_H
-- Looking for include files HAVE_INTTYPES_H - found
-- Looking for snprintf
-- Looking for snprintf - found
-- Looking for asprintf
-- Looking for asprintf - not found.
-- Looking for wprintf
-- Looking for wprintf - not found.
-- Looking for printf
-- Looking for printf - found
-- Looking for intmax_t
-- Looking for intmax_t - not found.
-- Looking for uintmax_t
-- Looking for uintmax_t - not found.
-- Looking for LC_MESSAGES
-- Looking for LC_MESSAGES - found
-- Check size of intmax_t
-- Check size of intmax_t - failed
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/build-intl

It's perfectly reproducible: I can repeat either way many times, and it works 
only with debug-trycompile on.

I examined the CMakeError.log. It's my first time looking at it, so I don't 
really know what I expect to see, but it doesn't seem to be weird: it looks 
like it tried to compile a file and encountered an undefined symbol. I just 
don't know why. I'm attaching both the error & output logs, just in case your 
far more experienced eyes catch anything.

I can try to reduce to a more minimal test case and send the required files to 
the list if that would be useful.

Best,
--Tim
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