[PATCH v3 03/13] kbuild: add ARCH=um alias for sandbox

[Ahmad Fatoum]

ARCH=um (User Mode) is the Linux kernel counterpart to our sandbox
architecture. Add um as an alias, so we can interoperate with tools that
handle ARCH=um specially.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index 3b7dbd4c772d..a1411386f1b3 100644
--- a/Makefile
+++ b/Makefile
@@ -356,6 +356,10 @@ ifeq ($(ARCH),ppc)
        SRCARCH := powerpc
 endif
 
+ifeq ($(ARCH),um)
+       SRCARCH := sandbox
+endif
+
 KCONFIG_CONFIG	?= .config
 
 export KCONFIG_CONFIG
-- 
2.29.2