linux-kernel - [PATCH] kbuild: clear KBUILD_SRC when calling 'make' in RPM spec

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Message-Id: <1358003959-5533-1-git-send-email-drbild@umich.edu>
Date:	Sat, 12 Jan 2013 10:19:19 -0500
From:	"David R. Bild" <drbild@...ch.edu>
To:	Michal Marek <mmarek@...e.cz>
Cc:	"David R. Bild" <drbild@...ch.edu>, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org, trivial@...nel.org
Subject: [PATCH] kbuild: clear KBUILD_SRC when calling 'make' in RPM spec

From: "David R. Bild" <drbild@...ch.edu>

'make rpm-pkg' and 'make binrpm-pkg' fail when the kernel source is
read-only.  Specifically, when the RPM spec generated by
scripts/package/mkspec is run, KBUILD_SRC happens to be set to the
source location and thus the invocation of 'make headers_install'
fails when an internal call to 'filechk' tries to write a file into
the source tree.

The fix is to clear KBUILD_SRC for the 'make headers_install'
invocation in the spec file, as is already done for the 'make
modules_install' invocation.

Signed-off-by: David R. Bild <drbild@...ch.edu>
---
 scripts/package/mkspec |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index 4bf17dd..fbbfd08 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -95,7 +95,7 @@ echo 'cp $KBUILD_IMAGE $RPM_BUILD_ROOT'"/boot/vmlinuz-$KERNELRELEASE"
 echo "%endif"
 echo "%endif"
 
-echo 'make %{?_smp_mflags} INSTALL_HDR_PATH=$RPM_BUILD_ROOT/usr headers_install'
+echo 'make %{?_smp_mflags} INSTALL_HDR_PATH=$RPM_BUILD_ROOT/usr KBUILD_SRC= headers_install'
 echo 'cp System.map $RPM_BUILD_ROOT'"/boot/System.map-$KERNELRELEASE"
 
 echo 'cp .config $RPM_BUILD_ROOT'"/boot/config-$KERNELRELEASE"
-- 
1.7.10.4

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