Re: Newlib branch with latest autotools support

["Shaun Jackman" <sjackman at gmail dot com>]

On 4/3/06, Shaun Jackman <sjackman@gmail.com> wrote:
> On 4/3/06, Jeff Johnston <jjohnstn@redhat.com> wrote:
> > There appears to be something wonky going on with your setup.  I found
> > an old arm-elf tools build on my system and tried it out with your exact
> > configuration line.  It built fine.  Do you happen to have an arm-elf
> > build handy without any local changes?
> >
> > I'd like to check in the changes along with Ralf's patch.  If we can
> > pinpoint the problems you are experiencing as gcc or local change
> > problems, there would be no reason for delaying this.
>
> I did a rm -rf /usr/local and rebuilt binutils from CVS (2006-04-03).
> I then started to rebuild gcc 4.1.0 from scratch, but configuring
> libssp fails due to the lack of a working C compiler (haven't built
> one yet).

It occurred to me that I don't need libssp, and gcc built just fine. I
installed gcc ignoring the libssp error. I then built
newlib-autotools-branch. It fails due to the same config.cache error.

$ make 2>&1 |grep value: |cat -e
configure:   former value:  -O2 -g -O2  $
configure:   current value: -O2 -g -O2 $

binutils CVS 2004-03-03
gcc 4.1.0
newlib-autotools-branch CVS 2004-03-03

Cheers,
Shaun

configure: configuring in libc
configure: running /bin/sh '../../../../newlib/libc/configure'
--prefix=/usr/local  '--cache-file=./config.cache'
'--build=i686-pc-linux-gnu' '--host=arm-elf' '--target=arm-elf'
'--with-newlib' '--enable-multilib'
'--with-cross-host=i686-pc-linux-gnu' '--with-cpu=arm7tdmi'
'--disable-newlib-supplied-syscalls' '--disable-newlib-io-float'
'--program-transform-name=s,^,arm-elf-,; '
'--with-target-subdir=arm-elf' '--srcdir=../../../newlib'
'CC=arm-elf-gcc
-B/home/sjackman/src/toolchain/orig/newlib-cvs/_build/arm-elf/newlib/
-isystem /home/sjackman/src/toolchain/orig/newlib-cvs/_build/arm-elf/newlib/targ-include
-isystem /home/sjackman/src/toolchain/orig/newlib-cvs/newlib/libc/include'
'CFLAGS=-O2 -g -O2 ' 'CPPFLAGS=' 'LDFLAGS='
'build_alias=i686-pc-linux-gnu' 'host_alias=arm-elf'
'target_alias=arm-elf' --cache-file=.././config.cache
--srcdir=../../../../newlib/libc
configure: loading cache .././config.cache
configure: error: `CFLAGS' has changed since the previous run:
configure:   former value:  -O2 -g -O2
configure:   current value: -O2 -g -O2
configure: error: changes in the environment can compromise the build
configure: error: run `make distclean' and/or `rm .././config.cache'
and start over
configure: error: /bin/sh '../../../../newlib/libc/configure' failed for libc
make[1]: *** [configure-target-newlib] Error 1
make[1]: Leaving directory `/home/sjackman/src/toolchain/orig/newlib-cvs/_build'
make: *** [all] Error 2