[PATCH] kbuild: Fix link to headers in 'make deb-pkg'

[Joerg Roedel <joerg.roedel@amd.com>]

The Link to the kernel header files in the debian packages
point to the original build directory. This is a bad choice
if the packages were installed on a different machine. Fix
this in by manually re-creating the link in the builddeb
script.
With this patch applied the lib/modules/$version dir always
exists, so move the "$ARCH = um" check out of the modules
check too.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 scripts/package/builddeb |   13 +++++++++----
 1 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index f6cbc3d..46f63dc 100644
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -91,6 +91,7 @@ fi
 rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir"
 mkdir -m 755 -p "$tmpdir/DEBIAN"
 mkdir -p  "$tmpdir/lib" "$tmpdir/boot" "$tmpdir/usr/share/doc/$packagename"
+mkdir -p  "$tmpdir/lib/modules/$version"
 mkdir -m 755 -p "$fwdir/DEBIAN"
 mkdir -p "$fwdir/lib" "$fwdir/usr/share/doc/$fwpackagename"
 mkdir -m 755 -p "$libc_headers_dir/DEBIAN"
@@ -121,10 +122,14 @@ fi
 
 if grep -q '^CONFIG_MODULES=y' .config ; then
 	INSTALL_MOD_PATH="$tmpdir" make KBUILD_SRC= modules_install
-	if [ "$ARCH" = "um" ] ; then
-		mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
-		rmdir "$tmpdir/lib/modules/$version"
-	fi
+fi
+
+# Make sure link to the headers is correct
+ln -snf "/usr/src/$kernel_headers_packagename" "$tmpdir/lib/modules/$version/build"
+
+if [ "$ARCH" = "um" ] ; then
+	mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
+	rmdir "$tmpdir/lib/modules/$version"
 fi
 
 make headers_check
-- 
1.7.5.4