GCC 4.0.1 Status (2005-06-13)

[Daniel Kegel]

Scott Robert Ladd wrote:
> Mark Mitchell wrote:
>> 2. Jakub Jelinek reports that we're miscompiling GLIBC.

[I think this is http://gcc.gnu.org/PR22043 ]

>> 
>> The latter problem seems to me to be as severe as the KDE bug that was
>> the impetus for this release.  ...
> 
> Agreed. I've had mixed reports from folks over in the Gentoo universe
> about glibc; perhaps this page might be of interest:
> 
> http://process-of-elimination.net/?q=gentoo_and_gcc_4_0_0_tips_and_tricks

I think that's a different issue.
Jakub's almost certainly building glibc-cvs, not glibc-2.3.5,
and in PR22043, he says it seems to compile fine, but the resulting
code is broken.

The gentoo issue is probably just that glibc-2.3.5 won't compile with gcc-4.0.0.
That's well known; it needs fixes
(e.g. http://kegel.com/crosstool/current/patches/glibc-2.3.5/glibc-2.3.4-allow-gcc-4.0-iconvdata.patch).
Fixes for all these compatibility problems are in glibc-cvs, I think.
(Interestingly, the fixes in glibc-cvs seem to have been made in such a way that the
new glibc won't be compilable by older versions of gcc, like gcc-3.4.4.
I guess the thinking is that everyone should be using the latest gcc?)
- Dan