Re: Crosscompiling issues with glibc-2.3.4

[Daniel Jacobowitz <drow at false dot org>]

On Sat, Feb 12, 2005 at 02:04:52PM -0800, Jeremy Huddleston wrote:
> In putting together gentoo's latest ebuild for glibc, I came across a
> few issues with the build.
> 
> 1) When using static gcc, you try to -lgcc_eh:
> This was originally discussed back in 2003[1], and I took out our hack
> as I thought it was fixed, but it appears I was wrong.  When we don't
> have libgcc_eh (such as with a static gcc for crosscompilation), glibc
> still tries to -lgcc_eh
> 
> [1] http://sources.redhat.com/ml/libc-alpha/2003-09/msg00100.html

Yeah, I'm going to resubmit a fix for this soon.

> 2) You need an installed glibc to build glibc+nptl
> 
> nptl/sysdeps/pthread/configure.in's check for forced unwind support uses
> AC_TRY_LINK, but that will only work if we already have a libc
> installed.
> 
> ./configure's tail:
> running configure fragment for nptl/sysdeps/pthread
> checking for forced unwind support... no
> configure: error: forced unwind support is required
> 
> relevant part in config.log:
> configure:27: checking for forced unwind support
> configure:51: sparc-unknown-linux-gnu-gcc -o conftest -O2 -pipe -O2
> -fcall-used-
> g6 -O2   conftest.c  >&5
> /usr/lib/gcc/sparc-unknown-linux-gnu/3.4.3-20050110/../../../../sparc-unknown-li
> nux-gnu/bin/ld: crt1.o: No such file: No such file or directory
> collect2: ld returned 1 exit status

I've just been forcing this variable, and the check for the cleanup
attribute.

-- 
Daniel Jacobowitz
CodeSourcery, LLC