commit d37e8ae3fb24b589793ae92062d665cc6384151e
Author: Marc Olzheim <marc@iphion.nl>
Date:   Thu Jun 11 12:44:34 2009 +0200

    Make allowing dash as /bin/sh a configuration option.

diff --git a/classes/sanity.bbclass b/classes/sanity.bbclass
index 29624c3..3ee9a0a 100644
--- a/classes/sanity.bbclass
+++ b/classes/sanity.bbclass
@@ -112,11 +112,12 @@ def check_sanity(e):
 		missing = missing.rstrip(',')
 		messages = messages + "Please install following missing utilities: %s\n" % missing
 
-	try:
-	    if os.path.basename(os.readlink('/bin/sh')) == 'dash':
-		    messages = messages + "Using dash as /bin/sh causes various subtle build problems, please use bash instead.\n"
-	except:
-		pass
+	if not data.getVar( 'ALLOW_DASH_SH', e.data, True ):
+		try:
+		    if os.path.basename(os.readlink('/bin/sh')) == 'dash':
+			    messages = messages + "Using dash as /bin/sh causes various subtle build problems, please use bash instead.\n"
+		except:
+			pass
 
 	omask = os.umask(022)
 	if omask & 0755: