Improve make install to work properly with a distro that use non-standard dir for V4L/DVB modules

From: Mauro Carvalho Chehab <mchehab@redhat.com>

One distro stores kernel/drivers/media files on non-standard dirs.

I can't see any logical rule for, once having the kernel original dir
position, determine were the kernel driver were placed on that distro.

For example, they put xc5000.ko driver inside <foo>/media/au0828,
while the expected place would be something like
<foo>/media/common/tuners.

So, this patch do some tricks, when "make rminstall" or "make install"
is called:

1) detect if it is such distro;

2) if so, it will run something like:
	find <foo>/media -name <module.ko> -exec rm '{}' \;
where <module.ko> is the official V4L/DVB name for the compiled modules,
and <foo> is the distro non-standard dir.

This should remove the new V4L/DVB .ko modules that are located at the
non-standard dir or inside one of its sub-directories.

NOTICE: If there are other V4L/DVB drivers there that (1) aren't inside
V4L/DVB tree; (2) weren't selected to compile; then those drivers will
likely stop working.

This patch doesn't affect the other distros.

Priority: normal

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 29 insertions, 1 deletions

diff --git a/v4l/scripts/make_makefile.pl b/v4l/scripts/make_makefile.pl
index 82821b43b..ac1b6cac0 100755
--- a/v4l/scripts/make_makefile.pl
+++ b/v4l/scripts/make_makefile.pl
@@ -157,6 +157,33 @@ sub removeobsolete()
 	}
 }
 
+#
+# Special hack for Ubuntu with their backport mess
+#
+sub removeubuntu()
+{
+	my $dest = "/lib/modules/\$(KERNELRELEASE)/ubuntu/media";
+	my $filelist;
+
+	while ( my ($dir, $files) = each(%instdir) ) {
+		$filelist .= join(' ', keys %$files);
+	}
+	while ( my ($dir, $files) = each(%obsolete) ) {
+		$filelist .= join(' ', keys %$files);
+	}
+	$filelist =~ s/\s+$//;
+
+	print OUT "\t\@if [ -d $dest ]; then ";
+	print OUT "printf \"\\nHmm... distro kernel with a non-standard place for module backports detected.\\n";
+	print OUT "Please always prefer to use vanilla upstream kernel with V4L/DVB\\n";
+	print OUT "I'll try to remove old/obsolete LUM files from $dest:\\n\"; ";
+	print OUT "files='", $filelist, "'; ";
+
+	print OUT "for i in \$\$files;do find \"$dest\" \-name \"\$\$i\" \-exec echo \'{}\' \';\' ;";
+	print OUT " find \"$dest\" \-name \"\$\$i\" \-exec rm \'{}\' \';\' ;";
+	print OUT " done;";
+	print OUT " fi\n";
+}
 
 getobsolete();
 
@@ -169,6 +196,7 @@ print OUT "\t\@echo \"Stripping debug info from files\"\n";
 print OUT "\t\@strip --strip-debug \$(inst-m)\n\n";
 
 removeobsolete();
+removeubuntu();
 
 print OUT "\t\@echo \"Installing kernel modules under \$(DESTDIR)\$(KDIR26)/:\"\n";
 
@@ -191,8 +219,8 @@ print OUT "\t/sbin/depmod -a \$(KERNELRELEASE) \$(if \$(DESTDIR),-b \$(DESTDIR))
 print OUT "media-rminstall::\n";
 
 removeobsolete();
+removeubuntu();
 
-print OUT "\t\@echo -e \"\\nRemoving old \$(DEST) files\\n\"\n";
 while ( my ($dir, $files) = each(%instdir) ) {
 	print OUT "\t\@echo -e \"\\nRemoving old \$(KDIR26)/$dir files:\"\n";
 	print OUT "\t\@files='", join(' ', keys %$files), "'; ";