Improves V4L/DVB in-tree building

From: Mauro Carvalho Chehab <mchehab@infradead.org>

Now, make_kconfig.sh will check for boolean/tristate config
vars and handle it properly.
Also, make allyesconfig/allmodconfig will use make_kconfig.sh
to generate .myconfig instead of conf -m. This way, make all will
not require priviledges at kernel tree.
write access to kernel tree is still required for make menuconfig/
make xconfig/make qconfig.

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

1 files changed, 44 insertions, 2 deletions

diff --git a/v4l/scripts/make_kconfig.pl b/v4l/scripts/make_kconfig.pl
index b1d6f5d53..11392c32d 100755
--- a/v4l/scripts/make_kconfig.pl
+++ b/v4l/scripts/make_kconfig.pl
@@ -4,8 +4,27 @@ use FileHandle;
 my %depend = ();
 my %minver = ();
 my %config = ();
+my %tristate = ();
 my $version, $level, $sublevel;
 
+my $force_kconfig=shift;
+
+sub add_bool($)
+{
+	my $arg=shift;
+
+	$tristate{$arg}="bool";
+	printf "Boolean:%s\n",$arg;
+}
+
+sub add_tristate($)
+{
+	my $arg=shift;
+
+	$tristate{$arg}="tristate";
+	printf "Tristate:%s\n",$arg;
+}
+
 sub add_config($)
 {
 	my $arg=shift;
@@ -34,6 +53,7 @@ sub open_kconfig($$) {
 	my ($dir,$file)=@_;
 	my $in = new FileHandle;
 	my $skip=0;
+	my $key;
 
 #print "opening $file\n";
 	open $in,"$file";
@@ -51,9 +71,14 @@ sub open_kconfig($$) {
 		if (m|^\s+select (.*)\n|) {
 			check_deps ($1);
 		}
+		if (m|^\s*bool\s+|) {
+			add_bool($key);
+		}
+		if (m|^\s*tristate\s+|) {
+			add_tristate($key);
+		}
 		if (m|^\s*config (.*)\n|) {
-			my $key=$1;
-
+			$key=$1;
 			add_config ($1);
 
 			my $min=$minver { $key };
@@ -139,9 +164,26 @@ while ( my ($key, $value) = each(%config) ) {
 open OUT,">Kconfig.kern";
 
 print OUT "config MODULES\n\tboolean\n\tdefault y\n\n";
+$tristate{"MODULES"}="bool";
 
 while ( my ($key, $value) = each(%depend) ) {
 	print OUT "# $key with $value refs\nconfig $key\n\ttristate\n\tdefault m\n\n";
 }
 close OUT;
 
+if (($force_kconfig eq 1) || !open IN,".config") {
+	open OUT,">.config";
+	while ( my ($key,$value) = each(%tristate) ) {
+
+		if ($key eq "DVB_AV7110_FIRMWARE") {
+				printf OUT "CONFIG_%s=n\n",$key;
+		} else {
+			if ($value eq "tristate") {
+				printf OUT "CONFIG_%s=m\n",$key;
+			} else {
+				printf OUT "CONFIG_%s=y\n",$key;
+			}
+		}
+	}
+	close OUT;
+}