Bug#609690: gcc-4.4: default 32bit arch on amd64, i386, and kfreebsd-{amd64,i386},

[Matthias Klose <doko@debian.org>]

On 11.01.2011 16:38, Petr Salinger wrote:
> Package: gcc-4.4
> Version: 4.4.5-8
>
> Hi,
>
> the current gcc-4.4 uses (tested on i386/4.4.5-6 and kfreebsd-i386/4.4.5-8)
> as a default arch i586.
> COLLECT_GCC_OPTIONS='-v' '-dD' '-E' '-mtune=generic' '-march=i586'
>
> echo "" | gcc-4.4 -dD -x c -E - | grep 86
>
> #define __DBL_MAX__ 1.7976931348623157e+308
> #define __i386 1
> #define __i386__ 1
> #define i386 1
> #define __i586 1
> #define __i586__ 1
>
> It is due to debian/rules2:
>
> ifneq (,$(filter $(DEB_TARGET_ARCH), amd64 i386 kfreebsd-i386 kfreebsd-amd64))
> #CONFARGS += --with-arch-32=i486
> ifeq ($(distribution),Ubuntu)
> CONFARGS += --with-arch-32=i686
> else
> CONFARGS += --with-arch-32=i586
> endif
> endif
>
>
> I believe, that even plain i486 have to be supported,
> also changelog claims that default should still be i486.

yes, I think I did change that to avoid libgomp failures, which requires i586, 
and not just i486.  Not sure what to do about that for squeeze.

  $ apt-cache rdepends libgomp1 | wc -l
  77

So all these packages would need setting of the -march flag explicitly.

There are other packages which do require i586, like OpenJDK.