linux-kernel - [127/146] kbuild: Fix GNU make v3.80 compatibility

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Date:	Wed, 01 Jun 2011 17:01:03 +0900
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Kevin Cernekee <cernekee@...il.com>,
	Michal Marek <mmarek@...e.cz>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [127/146] kbuild: Fix GNU make v3.80 compatibility

2.6.38-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Kevin Cernekee <cernekee@...il.com>

commit 43f67c98161c65f1b2e3af3a9ce6741850072c06 upstream.

According to Documentation/Changes, the kernel should be buildable with
GNU make 3.80+.  Commit 88d7be031f9f975bb3f50a0b5ef3796a671e7edf (kbuild:
Use a single clean rule for kernel and external modules) introduced the
"$(or" construct, which requires make 3.81.  This causes "make clean" to
malfunction when it is used with external modules.

Replace "$(or" with an equivalent "$(if" expression, to restore backward
compatibility.

Signed-off-by: Kevin Cernekee <cernekee@...il.com>
Signed-off-by: Michal Marek <mmarek@...e.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/Makefile
+++ b/Makefile
@@ -1368,7 +1368,7 @@ endif # KBUILD_EXTMOD
 clean: $(clean-dirs)
 	$(call cmd,rmdirs)
 	$(call cmd,rmfiles)
-	@find $(or $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
+	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
 		-o -name '*.symtypes' -o -name 'modules.order' \


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