[oe] [PATCH] base.bbclass: in base_contains, check for var existance before using it

[Chris Larson]

From: Brian Pomerantz <bapper at mvista.com>

When using base_contains() to check for a string in a variable for a,
if the variable is not defined an exception occurs.  By checking the
existance of the variable and returning false if it isn't there,
a value can be checked for a variable regardless of whether or not it
is defined.

Signed-off-by: Brian Pomerantz <bapper at mvista.com>
Signed-off-by: Chris Larson <clarson at mvista.com>
---
 classes/base.bbclass |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/classes/base.bbclass b/classes/base.bbclass
index 384a67d..f67773a 100644
--- a/classes/base.bbclass
+++ b/classes/base.bbclass
@@ -226,14 +226,17 @@ def base_version_less_or_equal(variable, checkvalue, truevalue, falsevalue, d):
         return falsevalue
 
 def base_contains(variable, checkvalues, truevalue, falsevalue, d):
+	val = bb.data.getVar(variable,d,1)
+	if not val:
+		return falsevalue
 	matches = 0
 	if type(checkvalues).__name__ == "str":
 		checkvalues = [checkvalues]
 	for value in checkvalues:
-		if bb.data.getVar(variable,d,1).find(value) != -1:	
+		if val.find(value) != -1:
 			matches = matches + 1
 	if matches == len(checkvalues):
-		return truevalue		
+		return truevalue
 	return falsevalue
 
 def base_both_contain(variable1, variable2, checkvalue, d):
-- 
1.6.4.339.g527d