[arch-general] [arch-dev-public] [signoff] gcc-4.5 toolchain rebuild

Emmanuel Benisty benisty.e at gmail.com
Fri Apr 16 10:03:19 EDT 2010


On Fri, Apr 16, 2010 at 7:32 PM, Allan McRae <allan at archlinux.org> wrote:
> The gcc-4.5 toolchain rebuild is in [testing].  Here is a summary of the
> changes I made:
> gcc-4.5.0-1:
>  upstream update
>  add new deps (libmpc, libelf)
>  enable link time optimization
>  tidy up configure
>  add c89 and c99 launcher scripts (POSIX compatibility)

Just out of curiosity, what is the plan regarding this issue (quoted
from the gcc changelog):

On x86 targets, code containing floating-point calculations may run
significantly slower when compiled with GCC 4.5 in strict C99
conformance mode than they did with earlier GCC versions. This is due
to stricter standard conformance of the compiler and can be avoided by
using the option -fexcess-precision=fast;


More information about the arch-general mailing list