speed up the build system a little bit

SVN-Revision: 5506

include/host.mk

@@ -11,6 +11,7 @@ export TAR
 
 $(TMP_DIR)/.host.mk: $(INCLUDE_DIR)/host.mk
 	@( \
+		echo -n "BASH:=$(shell which bash)"; \
 		HOST_OS=`uname`; \
 		case "$$HOST_OS" in \
 			Linux) HOST_ARCH=`uname -m`;; \

rules.mk

@@ -9,7 +9,6 @@
 include $(TOPDIR)/include/verbose.mk
 
 export SHELL=/usr/bin/env bash -c '. $(TOPDIR)/include/shell.sh; eval "$$2"' --
-export BASH=$(shell which bash)
 
 ARCH:=$(strip $(subst ",, $(CONFIG_ARCH)))
 TARGET_OPTIMIZATION:=$(strip $(subst ",, $(CONFIG_TARGET_OPTIMIZATION)))