[OE-core] [PATCH] autotools: Exclude variables from autotools_copy_aclocals

[Richard Purdie]

The autotools aclocal copy function should not depend on various variables, these
are accounted for in other parts of the system. Therefore exclude them.

This was causing differences in sstate checksums between different systems and meaning
the sstate cache wasn't being reused as much as it should.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
diff --git a/meta/classes/autotools.bbclass b/meta/classes/autotools.bbclass
index 15fcfc6..f8c9b1e 100644
--- a/meta/classes/autotools.bbclass
+++ b/meta/classes/autotools.bbclass
@@ -175,7 +175,7 @@ python autotools_copy_aclocals () {
         if not os.path.exists(t):
             os.symlink(c, t)
 }
-autotools_copy_aclocals[vardepsexclude] += "MACHINE"
+autotools_copy_aclocals[vardepsexclude] += "MACHINE SDK_ARCH BUILD_ARCH BB_TASKDEPDATA"
 
 autotools_do_configure() {
 	# WARNING: gross hack follows: