mirrors.bbclass: Ensure we don't overwrite any existing MIRRORS variable

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/mirrors.bbclass b/meta/classes/mirrors.bbclass
index 2eb99cd23ff21242f50a19bb71f92adf769b77ea..214608736bef9f48ddecccc4bda33cdf3d04c116 100644 (file)
--- a/meta/classes/mirrors.bbclass
+++ b/meta/classes/mirrors.bbclass
@@ -1,4 +1,4 @@
-MIRRORS = "\
+MIRRORS += "\
 ${DEBIAN_MIRROR}/main  http://snapshot.debian.net/archive/pool \n \
 ${DEBIAN_MIRROR}       ftp://ftp.de.debian.org/debian/pool \n \
 ${DEBIAN_MIRROR}       ftp://ftp.au.debian.org/debian/pool \n \