[PATCH] make O=foo does not fail if foo does not exist

[Kevin P. Fleming]

Simple enough... I mistyped the path to the object directory, and the 
build continued in the source directory anyway. This patch causes the 
build to stop, although with a non-obvious error message. A better fix 
would actually check KBUILD_OUTPUT after the cd && pwd test, but I'll 
leave that to you if you're so inclined.

--- linux-2.6/Makefile~	Sat Sep 27 19:26:01 2003
+++ linux-2.6/Makefile	Sun Sep 28 14:46:05 2003
@@ -81,7 +81,7 @@

 ifneq ($(KBUILD_OUTPUT),)
 # Invoke a second make in the output directory, passing relevant 
variables
-	KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT); /bin/pwd)
+	KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)

 .PHONY: $(MAKECMDGOALS) all


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