Re: checking Mac OS X headers

[Ralf Wildenhues]

Hello Vincent,

* Vincent Torri wrote on Mon, Nov 09, 2009 at 07:45:32PM CET:
> I would like to check if some Mac OS X headers are available. So I
> first set the Objective C compiler with AC_LANG_PUSH, only if there
> is an Objective C compiler:
> 
> # Check compilers
> 
> m4_ifdef([AC_PROG_OBJC],
>    [
>     AC_PROG_OBJC
>     _AM_DEPENDENCIES(OBJC)

Is this to support Automake versions before 1.10?  Because with 1.10 or
newer, you should not need to add _AM_DEPENDENCIES(OBJC).

>    ],
>    [
>     AC_CHECK_TOOL([OBJC], [gcc])
>     AC_SUBST([OBJC])
>     AC_SUBST([OBJCFLAGS])
>    ]
> )
[...]
> But the configure script fails:
> 
> configure: error: in `/home/torri/svnroot/evas':
> configure: error: Objective C preprocessor "/lib/cpp" fails sanity check
> 
> I have looked at config.log but it does not help a lot.

Will you allow us to have a look at it?
(IOW, please post it.)

Thanks,
Ralf