classes/autotools: avoid error if recipe is first in task dependency tree

If the recipe being built is listed first in BB_TASKDEPDATA (i.e. item
0) this is still valid and should not trigger an error.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/autotools.bbclass b/meta/classes/autotools.bbclass
index c49f0631ab6ab1081d7d602919be0fbcf5c02299..6b99bddd5dd0fd9c33e79009ca1c1507e1bccfa1 100644 (file)
--- a/meta/classes/autotools.bbclass
+++ b/meta/classes/autotools.bbclass
@@ -148,7 +148,7 @@ python autotools_copy_aclocals () {
         if data[1] == "do_configure" and data[0] == pn:
             start = dep
             break
-    if not start:
+    if start is None:
         bb.fatal("Couldn't find ourself in BB_TASKDEPDATA?")
 
     # We need to find configure tasks which are either from <target> -> <target>