The ARM on 4.9.0 with clang fails and needs an extra option and
this is only valid building the build cross compiler. This change
fxies the host and build flags so they only apply where needed.
Hack round the FreeBSD iconv support in Freebsd 10. In 10 libc now
supports iconv however iconv.h is present under /usr/local.
Start to add support to build qemu for MinGW via a Cxc. This is a
work in progress and contains lots of hidden traps.
In config.py separate out of the canadian build status.
Set up the rules to manage the separate host and build setting to
allow a Canadian cross to complete.
Update the scripts to move the build directory and host/build
flags into the defaults so they are common for all build
configurations.
Refactor the options handling in defaults.py to allow the --jobs
option have varing specific parameters. The option supports 'none',
'max' and 'half' or a fraction to divide the number of CPUs or
an integer value which is the number of jobs. The --no-smp has
been removed.
The host specific modules have been changed to set the number of
CPUs in the defaults table.
Fixed the --keep-going to clean up is --always-clean is provided
even if the build has an error.
The git module allows basic access to git. Hosts are now required
to provide git support.
The defaults module now returns options as a list split on '='.
