- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Disable -Wconstant-conversion warnings for the aic7xxx module in a more
fine-grained way: only add the option for the specific .c files that
need them, like via sys/conf/files.

MFC after: 1 week

Amend r228779 by also disabling -Wconstant-conversion warnings for the
aic7xxx module.

MFC after: 1 week

Add WERRROR= to work around the warnings

Curlies only work in target and sources specifications, but
not when passed to Bourne shell. This unbreaks "make clean".

Update GENSRCS and aicasm options correctly depending on whether register
pretty printing is enabled

Add a dependency on the source files for aicasm so that it will be rebuilt
if out of date.

Simplify.

Hook the aic7xxx modules up. This requires some extra care since aicasm
is a compiler tool and needs to be compiled by the host compiler. I've
tested this in i386->sparc cross-build, 4.7->current upgrade, normal
buildkernel target, and normal /sys/i386/compile/GENERIC configurations.

Submitted by: ru

Complete the hookup of ahd/ahc module building.

Allow the ahc and ahd drivers to be built as modules. This also
breaks the ahc driver into a core back-end and pci and eisa
front-ends.