disable stdin unless make V=99; fixes bug where compilation can stall waiting for input

SVN-Revision: 19511

include/verbose.mk

@@ -44,7 +44,7 @@ ifneq ($(KBUILD_VERBOSE),99)
       SILENT:=
     endif
     export QUIET:=1
-    SUBMAKE=cmd() { $(SILENT) $(MAKE) -s $$* || { echo "make $$*: build failed. Please re-run make with V=99 to see what's going on"; false; } } 8>&1 9>&2; cmd
+    SUBMAKE=cmd() { $(SILENT) $(MAKE) -s $$* < /dev/null || { echo "make $$*: build failed. Please re-run make with V=99 to see what's going on"; false; } } 8>&1 9>&2; cmd
   endif
 
   .SILENT: $(MAKECMDGOALS)