kbuild: fix "tools-all" target

The top Makefile must export HOST_TOOLS_ALL to use it
in tools/Makefile.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Heiko Schocher <hs@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>

diff --git a/Makefile b/Makefile
index 0167a6c141a47c5ac03b2117fd923d63d22bdd20..e165bea20e25da97743df2f6ee598f6afedebfbf 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1152,7 +1152,7 @@ checkarmreloc: u-boot
 env: scripts_basic
        $(Q)$(MAKE) $(build)=tools/$@
 
-tools-all: HOST_TOOLS_ALL=y
+tools-all: export HOST_TOOLS_ALL=y
 tools-all: env tools ;
 
 .PHONY : CHANGELOG