another optimization

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5507 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 6 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index d6b1b7d618..62a0338746 100644
--- a/Makefile
+++ b/Makefile
@@ -21,10 +21,15 @@ SHELL:=/usr/bin/env bash
 export LC_ALL=C
 export LANG=C
 export TOPDIR=${shell pwd}
-include $(TOPDIR)/include/verbose.mk
 ifeq ($(KBUILD_VERBOSE),99)
   MAKE:=3>/dev/null $(MAKE)
 endif
+ifneq ($(shell tty -s <&3 || echo x),x)
+  IS_TTY=1
+  export IS_TTY
+endif
+
+include $(TOPDIR)/include/verbose.mk
 
 OPENWRTVERSION:=$(RELEASE)
 ifneq ($(VERSION),)