sanity.bbclass: Add a check for dash as /bin/sh and error if found

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@4298 311d38ba-8fff-0310-9ca6-ca027cbcb966

diff --git a/meta/classes/sanity.bbclass b/meta/classes/sanity.bbclass
index 3368a062ac92741cd7d0c6247edf4b2a556117d2..cff2ad39078dff6528216a18480e74a79c1c64b1 100644 (file)
--- a/meta/classes/sanity.bbclass
+++ b/meta/classes/sanity.bbclass
@@ -104,6 +104,9 @@ def check_sanity(e):
                missing = missing.rstrip(',')
                messages = messages + "Please install following missing utilities: %s\n" % missing
 
+       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"
+
        omask = os.umask(022)
        if omask & 0755:
                messages = messages + "Please use a umask which allows a+rx and u+rwx\n"