Makefile: globally define variables used at different places
$(comma) and $(space) are used in packages and the toolchain.
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
diff --git a/Makefile b/Makefile
index 6b12c76..a55d9bb 100644
--- a/Makefile
+++ b/Makefile
@@ -40,6 +40,11 @@
BR2_LOCAL:=$(TOPDIR)/local
endif
+# Variables for use in Make constructs
+comma:=,
+empty:=
+space:=$(empty) $(empty)
+
# $(shell find . -name *_defconfig |sed 's/.*\///')
# Pull in the user's configuration file
ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
