[PATCH] 2.6.24-rc5: Fix build with make O= if the top level Makefile is not present

["Rafael J. Wysocki" <rjw@sisk.pl>]

Hi,

IMHO, something like the patch below is needed to fix builds with "make O=",
since after commit 18c32dac75b187d1a4e858f3cfdf03e844129f5e
"kbuild: fix building with O=.. options" the top-level Makefile is no longer
created automatically if it's not present at all.

Thanks,
Rafael


---
From: Rafael J. Wysocki <rjw@sisk.pl>

Make the build system create the top-level Makefile for builds with "make O="
if it is not present already.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
 scripts/mkmakefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6/scripts/mkmakefile
===================================================================
--- linux-2.6.orig/scripts/mkmakefile
+++ linux-2.6/scripts/mkmakefile
@@ -13,7 +13,7 @@
 test ! -r $2/Makefile -o -O $2/Makefile || exit 0
 # Only overwrite automatically generated Makefiles
 # (so we do not overwrite kernel Makefile)
-if ! grep -q Automatically $2/Makefile
+if (test -f $2/Makefile) && !(grep -q Automatically $2/Makefile)
 then
 	exit 0
 fi
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