* Matthias Klose:
> Starting with GCC 8, the configury allows to encode extra features into the
> architecture string. Debian and Ubuntu's armhf (hard float) architecture is
> configured with
>
> --with-arch=armv7-a --with-fpu=vfpv3-d16
>
> and now should be configured with
>
> --with-arch=armv7-a+fp
>
> The --with-fpu configure option is deprecated. The problem with this approach
> is that there is no default for the fpu setting, while old compilers silently
> pick up the -mfpu from the configured compiler.
FWIW, Fedora uses:
--with-tune=generic-armv7-a --with-arch=armv7-a \
--with-float=hard --with-fpu=vfpv3-d16 --with-abi=aapcs-linux \
Not sure how it is impacted by this change.
> This breaks software which explicitly configures things like
> -march=armv7-a, or where the architecture string is embedded in the
> source as an attribute. So going from one place in the compiler about
> configuring the ABI for a distro arch, this config now moves to some
> dozen places in different packages. Not the thing I would expect.
I don't know if we have seen such problems in Fedora. I don't remember
any reports.
Thanks,
Florian
