RE: autoconf.h and a cygwin toolchain

["Wedde, Thomas" <thomas dot wedde at hfwk dot de>]

Hi,

thank you very much, the patch did the trick !

In fact, I read the crosstool-howto very often, but yesterday it didn't
came in my mind that I already knew something about this bugfix ;)

However, I attach a link to a screen of that error-box I mentioned, and
it is not a "simply box with a memory address" as I said, it is an
application error of "conf.exe" (I must be frustrated yesterday...):
http://tinypic.com/kdu1xx.gif

One thing I also want to add is that a "make menuconfig" is also not
possible in cygwin, because there is only one console window allowed
there (but maybe there is a way to do this, which I do not know).



Thomas


> -----Original Message-----
> From: daniel.r.kegel@gmail.com [mailto:daniel.r.kegel@gmail.com] On
Behalf
> Of Dan Kegel
> Sent: Monday, January 16, 2006 5:27 PM
> To: Wedde, Thomas
> Cc: crossgcc@sourceware.org
> Subject: Re: autoconf.h and a cygwin toolchain
> 
> On 1/16/06, Wedde, Thomas <thomas.wedde@hfwk.de> wrote:
> > so finally I got my cygwin-linux-crosscompiler working and it builds
> > fine linux executables on my windows-host.
> > (here the facts:
> > - glibc 2.3.2
> > - gcc 3.2.3
> > - linux kernel 2.6.9)
> >
> > But now I seem to come into trouble with the kernel-configuration of
the
> > crosstool-script.
> >
> > If I try to compile a kernel module (especially a driver) I get an
error
> > from the compiler that the "autoconf.h" is missing ...
> > Google and this mailing list told me that the reason is a not
configured
> > kernel ...
> > So I tried those things which are already mentioned in this mailing
list
> > to (re-?)configure the kernel which was build during the
> > crosstool-process.
> > But this doesn't work, because of the following errors ...
> >   HOSTCC  -fPIC scripts/kconfig/zconf.tab.o
> > scripts/kconfig/zconf.tab.c:1: warning: -fPIC ignored for target
(all
> > code is position independent)
> 
> You need
>
http://kegel.com/crosstool/crosstool-0.38/patches/linux-2.6.8/linux-2.6.
8-
> noshared-kconfig.patch
> This was partly described in
>
http://kegel.com/crosstool/crosstool-0.38/doc/crosstool-howto.html#cygwi
n
> 
> > Those errors come with a window containing a simply error message
with a
> > memory-address.
> 
> That sounds nasty...
> 
> > It seems that I cannot reconfigure the kernel in cygwin, but how did
it
> > work during the build of the toolchain then!?
> 
> You shouldn't be using real kernel headers anymore in crosstool;
> the sanitized headers are more reliable.  Perhaps you did in fact
> use them (if the .dat file you used ended in -hdrs-2.6.11.2.dat, you
did).
> 
> > Maybe you can tell how I can work around this.
> 
> First off, apply that patch.  Second, you must use a case-sensitive
> filesystem to build the kernel!  The way to do this in cygwin
> is to use the 'managed' mount option.  See
> http://sourceware.org/ml/crossgcc/2005-05/msg00131.html
> - Dan
> 
> --
> Wine for Windows ISVs: http://kegel.com/wine/isv


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