Cheap cross compiler

[Jeff Bailey]

(Hopefully this email doesn't suffer from the usual problems I have
emailing at night: namely it not making any sense.  *Sigh*)

When hacking on glibc this evening, I noticed something that might be a
problem with our cheap cross compiler:

Glibc's configure uses this to detect whether DWARF2 unwind info
support is available:

libc_unwind_check="${CC-cc} $CFLAGS -DCHECK__register_frame_info \
                            -nostdlib -nostartfiles -o conftest conftest.c \
                            -lgcc -lgcc_eh -lgcc"

The current cheap cross-compiler shares libgcc*.a with the native
compiler, but that appears to be a mistake in this case.  It causes the
cross compiler to detect that we have this support where the native
compiler detects that we do not.

Is this resolvable?  If I remember right, we don't have all the unwind
info because we have a recent OLDEST_ABI, and don't support pre-gcc-3.x.

Aside from that, glibc-2.3.2 works fine done with the native compiler
with only the usual suspects showing up in make check.

Tks,
Jeff Bailey

-- 
"However, the Bush administration maintains it would not be bullied into
dialogue" (CNN, on North Korea)
 - The fundamental problem with the current US president.