4.0.2 bootstrap comparison failure on AIX 5.3

4.0.2 bootstrap comparison failure on AIX 5.3

[Albert Chin]

I've built gcc-4.0.2 as follows on AIX 5.3 and am receiving a
bootstrap comparison failure:
  $ cd /opt/build
  $ bzip2 -dc gcc-4.0.2.tar.bz2 | tar xf -
  $ mkdir gcc
  $ cd gcc
  $ CC=/usr/vac/bin/cc CONFIG_SHELL=/opt/fsw/bin/bash \
  /opt/fsw/bin/bash /opt/build/gcc-4.0.2/configure \
  --with-included-gettext --enable-shared --enable-threads \
  --enable-languages="c,c++" --disable-multilib
  ...
  $ gmake bootstrap
  ...
  Bootstrap comparison failure!
  ./fold-const.o differs
  gmake[1]: *** [slowcompare] Error 1
  gmake[1]: Leaving directory `/opt/build/gcc/gcc'
  gmake: *** [bootstrap] Error 2

The AIX 5.3 system:
  $ oslevel -r
  5300-02
  $ lslpp -L vac.C
  vac.C                      7.0.0.3    A     F    IBM XL C Compiler

I don't see anything on
http://gcc.gnu.org/install/specific.html#x-ibm-aix specific to AIX
5.3. I have also built on AIX 5.1 with the same result.

-- 
albert chin (china@thewrittenword.com)

Re: 4.0.2 bootstrap comparison failure on AIX 5.3

[David Edelsohn]

>>>>> Albert Chin writes:

Albert> I've built gcc-4.0.2 as follows on AIX 5.3 and am receiving a
Albert> bootstrap comparison failure:
Albert> $ CC=/usr/vac/bin/cc CONFIG_SHELL=/opt/fsw/bin/bash \

Albert> I don't see anything on
Albert> http://gcc.gnu.org/install/specific.html#x-ibm-aix specific to AIX
Albert> 5.3. I have also built on AIX 5.1 with the same result.

	I have bootstrapped on AIX 5.1 and AIX 5.2 using GCC without
problem. 

David

Re: 4.0.2 bootstrap comparison failure on AIX 5.3

[Albert Chin]

On Mon, Oct 10, 2005 at 11:58:04PM -0400, David Edelsohn wrote:
> >>>>> Albert Chin writes:
> 
> Albert> I've built gcc-4.0.2 as follows on AIX 5.3 and am receiving a
> Albert> bootstrap comparison failure:
> Albert> $ CC=/usr/vac/bin/cc CONFIG_SHELL=/opt/fsw/bin/bash \
> 
> Albert> I don't see anything on
> Albert> http://gcc.gnu.org/install/specific.html#x-ibm-aix specific to AIX
> Albert> 5.3. I have also built on AIX 5.1 with the same result.
> 
> 	I have bootstrapped on AIX 5.1 and AIX 5.2 using GCC without
> problem. 

Just tried this and bootstrapping with GCC works. Guess there's a bug
in the IBM compiler. I tried AIX 4.3.3 and 5.2 as well and encounter
the same bug. The version of the IBM compiler on our 5.x machines is
the same but on 4.3.3 it's the 6.0 compiler. So, looks like an old bug
is being tickled.

-- 
albert chin (china@thewrittenword.com)