ubuntu-touch: make sure we force the android alternative for libmir*- packages, in case their -mesa equivalent is installed by accident

debian/changelog

@@ -1,3 +1,11 @@
+livecd-rootfs (2.254) UNRELEASED; urgency=medium
+
+  * force the right alternative when the libmir*-android packages are
+    installed, so that accidentially pulled in -mesa versions will not provide
+    the default alternatives for them in ubuntu-touch images
+
+ -- Oliver Grawert <ogra@ubuntu.com>  Sat, 11 Oct 2014 13:09:49 +0200
+
 livecd-rootfs (2.253) utopic; urgency=medium
 
   * Update hardcoded libmir*-android installations for Mir 0.8.0.

live-build/ubuntu-touch/hooks/80-enable-libhybris.chroot

@@ -3,5 +3,16 @@
 echo "I: making libhybris the default alternatives for @DEB_HOST_MULTIARCH@_egl_conf"
 update-alternatives --set @DEB_HOST_MULTIARCH@_egl_conf /usr/lib/@DEB_HOST_MULTIARCH@/libhybris-egl/ld.so.conf
 
+if dpkg -l libmirclient8driver-android 2>/dev/null|grep -q ^ii; then
+    echo "I: making android the default alternatives for @DEB_HOST_MULTIARCH@_mirclient8driver_conf"
+    update-alternatives --set @DEB_HOST_MULTIARCH@_mirclient8driver_conf /usr/lib/@DEB_HOST_MULTIARCH@/client8driver/android/ld.so.conf
+fi
+
+
+if dpkg -l libmirplatform3driver-android 2>/dev/null|grep -q ^ii; then
+    echo "I: making android the default alternatives for @DEB_HOST_MULTIARCH@_mirplatform3driver_conf"
+    update-alternatives --set @DEB_HOST_MULTIARCH@_mirplatform3driver_conf /usr/lib/@DEB_HOST_MULTIARCH@/platform3driver/android/ld.so.conf
+fi
+
 # ldconfig needs to be run immediately as we're changing /etc/ld.so.conf.d/ with alternatives.
 LDCONFIG_NOTRIGGER=y ldconfig