[-,Regression] kbuild: fix make headers_check with make 3.80
diff mbox

Message ID 20130304203624.GA10846@merkur.ravnborg.org
State New, archived
Headers show

Commit Message

Sam Ravnborg March 4, 2013, 8:36 p.m. UTC
Commit 10b63956 ("UAPI: Plumb the UAPI Kbuilds into the user header
installation and checking") introduced a dependency of make 3.81
due to use of $(or ...)

We do not want to lift the requirement to gmake 3.81 just yet...
Included are a straightforward conversion to $(if ...)

Bisected-and-tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---

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Comments

Michal Marek March 5, 2013, 2:46 p.m. UTC | #1
On 4.3.2013 21:36, Sam Ravnborg wrote:
> Commit 10b63956 ("UAPI: Plumb the UAPI Kbuilds into the user header
> installation and checking") introduced a dependency of make 3.81
> due to use of $(or ...)
> 
> We do not want to lift the requirement to gmake 3.81 just yet...
> Included are a straightforward conversion to $(if ...)
> 
> Bisected-and-tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
> Cc: David Howells <dhowells@redhat.com>
> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
> ---

Thanks, Sam. I applied the patch to kbuild.git#kbuild and will send it
to Linus.

Michal
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Patch
diff mbox

diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 25f216a..477d137 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -14,7 +14,7 @@  kbuild-file := $(srctree)/$(obj)/Kbuild
 include $(kbuild-file)
 
 # called may set destination dir (when installing to asm/)
-_dst := $(or $(destination-y),$(dst),$(obj))
+_dst := $(if $(destination-y),$(destination-y),$(if $(dst),$(dst),$(obj)))
 
 old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild
 ifneq ($(wildcard $(old-kbuild-file)),)
@@ -48,13 +48,14 @@  all-files     := $(header-y) $(genhdr-y) $(wrapper-files)
 output-files  := $(addprefix $(installdir)/, $(all-files))
 
 input-files   := $(foreach hdr, $(header-y), \
-		   $(or \
+		   $(if $(wildcard $(srcdir)/$(hdr)), \
 			$(wildcard $(srcdir)/$(hdr)), \
-			$(wildcard $(oldsrcdir)/$(hdr)), \
-			$(error Missing UAPI file $(srcdir)/$(hdr)) \
+			$(if $(wildcard $(oldsrcdir)/$(hdr)), \
+				$(wildcard $(oldsrcdir)/$(hdr)), \
+				$(error Missing UAPI file $(srcdir)/$(hdr))) \
 		   )) \
 		 $(foreach hdr, $(genhdr-y), \
-		   $(or \
+		   $(if	$(wildcard $(gendir)/$(hdr)), \
 			$(wildcard $(gendir)/$(hdr)), \
 			$(error Missing generated UAPI file $(gendir)/$(hdr)) \
 		   ))