On Thu, 5 Dec 2013 20:01:24 -0500, Daniel Johnson
<daniel.johnso...@gmail.com> wrote:
> On Dec 5, 2013, at 2:25 PM, Remi Mommsen <remigius.momm...@cern.ch> wrote:
>
> > All this did not help. However, I tracked it to the following issue:
> > > configure at line 11523 checks if ldap_set_rebind_proc takes 2 or
> 3 arguments. However, the CFLAGS are extended on line 11530 to mark
> all warnings as errors. This causes the "clang: warning: argument
> unused during compilation" which also happens here to be promoted to
> an error, which in turn causes the compile to fail on line 15551.
> Thus, the 'ac_cv_ldap_set_rebind_proc_style' gets set to two instead
> of three. Calling clang with '-Qunused-arguments' quiets the warning
> about unused arguments. I.e. the following change to
> libaprutil.0-shlibs.info solves the issue for me:
> > > diff -u -r1.7 libaprutil.0-shlibs.info
> > --- libaprutil.0-shlibs.info 27 Nov 2013 03:06:10 -0000 1.7
> > +++ libaprutil.0-shlibs.info 5 Dec 2013 19:21:46 -0000
> > @@ -36,6 +36,7 @@
> > PatchScript: <<
> > ### Fix layout
> > perl -pi -e 's,/usr/local,%p,g' config.layout
> > + perl -pi -e 's,-Werror,-Werror -Qunused-arguments,g' configure
> > %{default_script}
> > <<
> > > > The question of course remains why it only fails for me ):
> > > Remi
>
> Yeah, I have no idea. I had someone else try and also couldn't
> duplicate it on 10.8 or 10.9. I've added your patch since it
> certainly can't hurt anything. I'm still curious as to what's causing
> this though. "clang: warning: argument unused during compilation"
> seems to be popping up more frequently now. This is the third time
> I've seen something related to it in the past couple days.
That's the generic "unknown flag" diagnostic (wording suggests it's
something like passing a linker-stage flag to the source-compile stage,
but it could just as well be a totally bogus flag, altogether. (a
totally bogus flag)
Various upstreams might be trying to guess what flags to use based on
heuristics of -v output or pathnames rather than testing them directly.
The more our compiler looks like "some other one" but doesn't support
the exact same -W* and other flags, and the more other compilers add
new flags that they do support, the more these warnings appear for us.
dan
--
Daniel Macks
dma...@netspace.org
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