sanity/abi-version: Force a clean TMPDIR after recipe specific sysroot changes

With the recipe specific sysroots, we need a clean tmpdir, else pseudo-native,
openssl-native, subversion-native and serf-native need to be manually cleaned.
After these there are probably more places where software doesn't rebuild correctly
even if we pass in new parameters to it.

The simplest solution is to force people to start from a clean TMPDIR since
everything would rebuild anyway.

(From OE-Core rev: da58e27a0f8fc8200f1953f05888834abd79c9f8)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/sanity.bbclass

@@ -630,6 +630,8 @@ def sanity_handle_abichanges(status, d):
             subprocess.call(d.expand("rm ${TMPDIR}/sysroots/*/usr/lib/xorg/modules/drivers/modesetting_drv.so ${TMPDIR}/sysroots/*/pkgdata/runtime/xf86-video-modesetting* ${TMPDIR}/sysroots/*/pkgdata/runtime-reverse/xf86-video-modesetting* ${TMPDIR}/sysroots/*/pkgdata/shlibs2/xf86-video-modesetting*"), shell=True)
             with open(abifile, "w") as f:
                 f.write(current_abi)
+        elif abi == "11" and current_abi == "12":
+            status.addresult("The layout of TMPDIR changed for Recipe Specific Sysroots.\nConversion doesn't make sense and this change will rebuild everything so please start with a clean TMPDIR.\n")
         elif (abi != current_abi):
             # Code to convert from one ABI to another could go here if possible.
             status.addresult("Error, TMPDIR has changed its layout version number (%s to %s) and you need to either rebuild, revert or adjust it at your own risk.\n" % (abi, current_abi))

meta/conf/abi_version.conf

@@ -4,4 +4,4 @@
 # that breaks the format and have been previously discussed on the mailing list 
 # with general agreement from the core team.
 #
-OELAYOUT_ABI = "11"
+OELAYOUT_ABI = "12"