[CentOS] scary messages from autoconf

[m.roth at 5-cent.us]

Michael Hennebry wrote:
<snip>
> 'Twould be nice just to know what the messages mean.
> I get the impression that output like this are indications of a problem
> that
> is not specific to the particular software that I was trying to compile:
> autoconf wrote:
>> checking for stdint.h... (cached) yes
>> checking limits.h usability... yes
>> checking limits.h presence... no
>> configure: WARNING: limits.h: accepted by the compiler, rejected by the
>> preprocessor!
>> configure: WARNING: limits.h: proceeding with the compiler's result
>> checking for limits.h... yes
>> checking for unistd.h... (cached) yes
>> checking sys/time.h usability... yes
>
> limits.h:
> usable, not present, accepted by the compiler, rejected by the
> preprocessor.
>
> Huh?

Here's a question: *which* limits.h? On my 6.3 system, if I locate
limits.h, I get:
/usr/include/limits.h
/usr/include/c++/4.4.4/tr1/limits.h
/usr/include/linux/limits.h
/usr/lib/gcc/x86_64-redhat-linux/4.4.4/include/limits.h
/usr/lib/gcc/x86_64-redhat-linux/4.4.4/include/syslimits.h
/usr/share/doc/pam-1.1.1/html/sag-pam_limits.html
/usr/share/man/man0p/limits.h.0p.gz
/usr/src/kernels/2.6.32-279.1.1.el6.x86_64/include/linux/limits.h
/usr/src/kernels/2.6.32-279.11.1.el6.x86_64/include/linux/limits.h
/usr/src/kernels/2.6.32-279.2.1.el6.x86_64/include/linux/limits.h
/usr/src/kernels/2.6.32-279.5.2.el6.x86_64/include/linux/limits.h
/usr/src/kernels/2.6.32-279.9.1.el6.x86_64/include/linux/limits.h

> --
> Michael   hennebry at web.cs.ndsu.NoDak.edu
> "On Monday, I'm gonna have to tell my kindergarten class,
> whom I teach not to run with scissors,
> that my fiance ran me through with a broadsword."  --  Lily

*sigh* And she didn't have a shield? What *were* they thinking?

       mark "my old shield's in the family room...."