Re: libtool problem on FreeBSD 4.1 with -pthread

[Gary V. Vaughan]

Ralf Wildenhues wrote:
> * Peter Ekberg wrote on Sat, Nov 06, 2004 at 05:29:25PM CET:
> 
>>Peter O'Gorman wrote:
>>
>>>If you put it in the .la in $inherited_linker_flags then all should
>>>be well (I think).
>>
>>Ok, thanks for the hint. I originally did the patch for the libtool 1.4
>>series and wasn't aware of the new flag. Here's a revised patch.
>>
>>Changelog entry as before...
>>
>>Cheers,
>>Peter
>>
>>2004-11-06  Peter Ekberg  <spam.protected>
>>
>>      * config/ltmain.m4sh (func_mode_link): forward thread
>>      related flags to dependent applications and libraries.
> 
> 
> I think we should take it, even if:
> 
> - On AIX, users will still have to set their compiler.

Really?  Under what circumstances?  And for what reason?

> - For different compilers on the same system, different flags might be
> necessary.  Thus, if you compile the library with a different
> compiler than the one you compile the program with, it might break.
> Note that it might not work anyway, so maybe it's not useful to worry
> about this too much.  (If it turns out to be an issue, let libtool
> resolve it by storing a compiler-independent flag there and substituting
> it for the cmdline;  e.g. -thread-safe).

Libtool (and autoconf) will only ever work properly if it is called
with the same compiler that was used at build time.  It is a limitation
of the architecture that we can't work around... short of rerunning
all the compile time tests at every invocation.

> - Other than the second point, this approach is orthogonal to finding
> out the value of thread_safe_flag_spec.
> 
> What do the others think?  I don't want to have the last word here.

I see no reason not to put it on HEAD and try it out as is.

Cheers,
        Gary.
-- 
Gary V. Vaughan      ())_.  address@hidden,gnu.org}
Research Scientist   ( '/   http://tkd.kicks-ass.net
GNU Hacker           / )=   http://www.gnu.org/software/libtool
Technical Author   `(_~)_   http://sources.redhat.com/autobook

signature.asc
Description: OpenPGP digital signature