Minor cleanup.

[goodfet] / firmware / config.mk

diff --git a/firmware/config.mk b/firmware/config.mk
index 363a0d6..71cac4b 100644 (file)
--- a/firmware/config.mk
+++ b/firmware/config.mk
@@ -2,8 +2,8 @@
 ## These are production boards.
 ##################################
 
-#Unset by default, but can be explicitly set later.
-config=undef
+#Unset by default, but can be explicitly overwritten.
+config ?= undef
 
 ifneq (,$(findstring $(board),apimote1 apimote))
 mcu ?= msp430f2618