[Help-gnutls] Re: duplicate symbols complaint on Mac OS X 10.5.2

[Simon Josefsson]

ludo at gnu.org (Ludovic Courtès) writes:

> Hi Simon,
>
> Simon Josefsson <simon at josefsson.org> writes:
>
>> Hi.  I just noticed this bug related to extern inline problems:
>>
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=466778
>
> That's with GCC 4.3, and a fix is going to appear in the next stable
> version of Guile (1.8.5):
>
>   http://git.sv.gnu.org/gitweb/?p=guile.git;a=commitdiff;h=979eade6515559e3590f87f127d21172036f52a6
>
> (Too bad Debian folks don't report bugs upstream...)

Yeah, I'm amazed they applied a patch like that without talking with
upstream.  Sigh.

> Using `-fgnu89-inline' (when available) has essentially the same effect
> as this patch.
>
> Furthermore, David is using 4.0, not 4.3:
>
>   http://permalink.gmane.org/gmane.network.gnutls.general/1099
>
> GCC 4.0 does not implement C99 "extern inline", so the problem
> encountered by David is actually similar but normally not related to the
> "extern inline" semantics change, unless Apple has shipped a patched GCC
> for all this time.

Which isn't entirely impossible from what I understand, so I'd
appreciate if David could try building Guile with the patch and then
build gnutls.

I'm still not sure whether this is a guile or gnutls problem.  Before
making changes in gnutls to override gnulib's gnu99 default, or adding
thinks like -fgnu89-inline, I want to understand the problem better.
Adding workarounds like that is easy to do, but years later the
workaround often start to cause new problems and it will be difficult to
know what to do.  (Compare the -D_REENTRANT flag..)

Would this problem go away if we removed all 'inline' tags from
functions in GnuTLS?  I don't think a most likely only tiny speed
improvement is worth these problems.

/Simon