merge: http://www.linuxtv.org/hg/~hverkuil/v4l-dvb-subdev2

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

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 43 insertions, 3 deletions

diff --git a/v4l/scripts/make_config_compat.pl b/v4l/scripts/make_config_compat.pl
index 3c2b623ca..7c7841459 100755
--- a/v4l/scripts/make_config_compat.pl
+++ b/v4l/scripts/make_config_compat.pl
@@ -280,9 +280,7 @@ sub check_snd_card_create()
 
 sub check_poll_schedule()
 {
-
-
-	my @files = ( "$kdir//include/linux/poll.h" );
+	my @files = ( "$kdir/include/linux/poll.h" );
 
 	foreach my $file ( @files ) {
 		open IN, "<$file" or die "File not found: $file";
@@ -300,6 +298,46 @@ sub check_poll_schedule()
 	$out.= "\n#define NEED_POLL_SCHEDULE 1\n";
 }
 
+sub check_snd_BUG_ON()
+{
+	my @files = ( "$kdir/include/sound/core.h" );
+
+	foreach my $file ( @files ) {
+		open IN, "<$file" or die "File not found: $file";
+		while (<IN>) {
+			if (m/snd_BUG_ON/) {
+				close IN;
+				# definition found. No need for compat
+				return;
+			}
+		}
+		close IN;
+	}
+
+	# definition not found. This means that we need compat
+	$out.= "\n#define NEED_SND_BUG_ON 1\n";
+}
+
+sub check_bitops()
+{
+	my @files = ( "$kdir/include/linux/bitops.h" );
+
+	foreach my $file ( @files ) {
+		open IN, "<$file" or next;
+		while (<IN>) {
+			if (m/#define\s+BIT\(/) {
+				close IN;
+				# definition found. No need for compat
+				return;
+			}
+		}
+		close IN;
+	}
+
+	# definition not found. This means that we need compat
+	$out.= "\n#define NEED_BITOPS 1\n";
+}
+
 sub check_other_dependencies()
 {
 	check_spin_lock();
@@ -317,6 +355,8 @@ sub check_other_dependencies()
 	check_pci_ioremap_bar();
 	check_snd_card_create();
 	check_poll_schedule();
+	check_snd_BUG_ON();
+	check_bitops();
 }
 
 # Do the basic rules