perl: use the exported LDDLFLAGS in generate_config_sh script

The perl shared libraries did not have RPATHs set and that made
autoreconf fail when using the SDK. The LDDLFLAGS environment variable
was already exported in the recipe but was not used when generating the
config.sh.

[YOCTO #3338]

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
build-appliance-image: Add explict dependency on do_unpack

The code called by do_rootfs explicitly needs the code obtained during
do_unpack. If built from sstate, it might not be present so we ensure
it is by adding an explicit dependency. This fixes build failures when
building from sstate.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
sstate: Add a rule for target sysroot requirements from cross dependencies

For example gcc-cross depends on linux-libc-headers and needs it to be present
to build/work correctly.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
sstate: Explicitly define populate_sysroot task relationships

Clean up and clarify the populate_sysroot task dependencies. Target sysroot
packages do need their dependencies installed, as do some target/cross
relationships. We can whitelist the *-initial dependencies as these are
never needed indirectly.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
xf86-video-omap: add xf86driproto dependency, drop --enable-neon and improve DESCRIPTION

* xf86driproto was missing
* --enable-neon isn't supported by omap driver
* DESCRIPTION merged from meta-ti
  http://git.yoctoproject.org/cgit/cgit.cgi/meta-ti/tree/recipes-graphics/xorg-driver/xf86-video-omap_git.bb?id=410dc026f2ee24a2346e7563a83f0181c79809cf
* this driver also depends PACKAGECONFIG[glx] used in xserver-xorg,
  without it dri2.h sometimes isn't built (it is autodetected only
  when dri2proto is built before xserver-xorg) and without dri2.h it now
  passes do_configure but fails later in do_compile

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
xserver-xorg: disable dri2 too when building without glx PACKAGECONFIG

* it was enabled when dri2proto was built before xserver-xorg

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
xf86-video-omapfb: revive driver which actually works and is tested on real devices

* 0006-omapfb-port-to-new-xserver-video-API.patch added to port it to
  new xserver video API
* other patches just updated headers to be able to git am them

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
xf86-video-omap: drop RPROVIDES/RREPLACES/RCONFLICTS

* without _${PN} suffix they are invalid:
  opkg install bash-4.2# opkg install xf86-video-omapfb
  Package xf86-video-omap-doc is already installed on root.

* it's not upgrade to omapfb driver but different driver,
  so let BSP maintainers decide which one works for their MACHINE

* without this xf86-video-omap (or -doc, -dbg, ...) can be pulled
  to image even when XSERVER clearly says xf86-video-omapfb

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>