Re: Why is fixincludes not doing anything?

[Ian Lance Taylor <iant@xxxxxxxxxx>]

rbmj <rbmj@xxxxxxxxxxx> writes:

> On 05/25/2012 09:59 AM, Ian Lance Taylor wrote:
>> rbmj<rbmj@xxxxxxxxxxx>  writes:
>>
>>> Refine my question: anyone know why fixincludes does not appear to be
>>> doing *anything*?  I can't seem to find any fixed headers anywhere in
>>> GCC's build tree.  And the compile keeps failing...
>> In your specific case, I don't know.  But it is possible for a target to
>> disable fixincludes by setting STMP_FIXINC in a config/CPU/t-XXX file.
>> Or, since this is a cross-compiler, GCC may simply be confused about
>> where to find the header files that it is supposed to fix.  Normally
>> those header files will be found in the directory printed by gcc
>> -print-sysroot-headers-suffix.  What does that print for you?  Did you
>> configure GCC with the right --with-sysroot option?
>
> Maybe that's the error:
>
> ./gcc/xgcc -print-sysroot-headers-suffix
> xgcc: fatal error: not configured with sysroot headers suffix
>
> xgcc is the compiler in question right?  . is the build directory.  I
> believe xgcc is the compiler that compiles all of the cross targets
> (lib*).

Yes.

> My configure call was:
>
> ../gcc-4.7.0/configure --prefix=/usr --target=powerpc-wrs-vxworks
> --with-gnu-as --with-gnu-ld
> --with-headers=../gccdist/WindRiver/vxworks-6.3/target/h
> --disable-shared --disable-libssp --disable-multilib --with-float=hard
> --enable-languages=c,c++ --enable-threads=vxworks --without-gconv
> --disable-libgomp --disable-nls --disable-libmudflap --with-cpu-PPC603
>
> I don't use --with-sysroot; I use --with-headers.  So do I need to use
> a different configuration?  And how can I achieve the same effect
> using --with-sysroot as I did with --with-headers if that *is* the
> issue.

As the installation doc says, the --with-sysroot option is the new
replacement for the --with-headers option.  So if you can, try using
--with-sysroot.

Otherwise, I'm not entirely sure.  The Makefile rules for running
fixincludes are pretty tangled.

Ian