Re: AC_HEADER_STDC and cross-compiles?

[Ralf Corsepius]

On Thu, 2004-04-08 at 03:24, Harlan Stenn wrote:
> I have a configure script that calls AC_HEADER_STDC.
> 
> We run cross-compiles.
> 
> I'm seeing a case where if our cross-compile toolchain is for a later
> version of Linux than the one on the local machine (say, one that uses gcc3
> instead of gcc2) that the AC_HEADER_STDC test fails because it tries to run
> a test program on the local(!) system,

This should not happen. How do you invoke configure?

>  and this fails:
> 
> ./conftest: /lib/i686/libc.so.6: version `GLIBC_2.3' not found (required by 
> ./c
> onftest)
Short answer: Your cross toolchain seems to be broken or mal installed.

Longer answer: It's difficult to guess what actually is causing your
problems. You seem to be using a cross-gcc that is linked against a
different libc than your build system is using.
How did you build this cross-gcc? To build a cross-gcc you normally need
to rebuild it from scratch, using gcc's cross-building machinery
(sys-include etc.).
"Just copying" an older "native gcc" normally is not sufficient (In case
you don't know it, you might want to search the net for Dan Kegel's
crosstools script).

Ralf