Re: Link tests after GCC_NO_EXECUTABLES

[Richard Sandiford <rsandifo@nildram.co.uk>]

Rask Ingemann Lambertsen <rask@sygehus.dk> writes:
> On Fri, Nov 30, 2007 at 10:25:34AM -0800, Mark Mitchell wrote:
>> Rask Ingemann Lambertsen wrote:
>> 
>> >>>    I have a feeling it would be more robust to simulate the link tests
>> >>> inside the autoconf/libtool macros themselves as opposed to explicitly
>> >>> avoiding them in each and every configure.{ac,in}. Supply an option
>> >>> --simulate-link-tests=file_with_results with the default being no and be
>> >>> happy.
>
>> The advantage to the current setup is that you get a
>> loud failure, and have to go actually work out the right answer.
>
>    That's the --cache-file option, except for clobbering the file. I'll see
> if I can arrange for the toplevel Makefile to copy a pre-made config.cache
> into target library build directories just before running configure. That
> ought to deal with all AC_FUNC(S) macros. That leaves just symbol versioning
> and AC_LIBTOOL_DLOPEN, which is manageble.

I've lost track of whether we're still talking about what to do for 4.3,
or whether we're talking about future directions.  So: are we considering
this for 4.3, or for 4.4+?

Richard