diff --git a/src/add-ons/media/media-add-ons/demultiplexer/Jamfile b/src/add-ons/media/media-add-ons/demultiplexer/Jamfile
index 2b19d4dec5..4d7f7937fc 100644
--- a/src/add-ons/media/media-add-ons/demultiplexer/Jamfile
+++ b/src/add-ons/media/media-add-ons/demultiplexer/Jamfile
@@ -7,6 +7,7 @@ Addon demultiplexer.media_addon : media :
 	MediaDemultiplexerAddOn.cpp
 	MediaOutputInfo.cpp
 	misc.cpp
+	: true
 ;
 
 LinkSharedOSLibs demultiplexer.media_addon : be media ;
diff --git a/src/add-ons/media/media-add-ons/demultiplexer/MediaDemultiplexerAddOn.cpp b/src/add-ons/media/media-add-ons/demultiplexer/MediaDemultiplexerAddOn.cpp
index adcd42788d..c2939cb1c0 100644
--- a/src/add-ons/media/media-add-ons/demultiplexer/MediaDemultiplexerAddOn.cpp
+++ b/src/add-ons/media/media-add-ons/demultiplexer/MediaDemultiplexerAddOn.cpp
@@ -135,9 +135,10 @@ status_t MediaDemultiplexerAddOn::AutoStart(
 // main
 // -------------------------------------------------------- //
 
-// int main(int argc, char *argv[])
-//{
-//}
+int main(int argc, char *argv[])
+{
+	fprintf(stderr,"main called for MediaDemultiplexerAddOn\n");
+}
 
 // -------------------------------------------------------- //
 // stuffing
diff --git a/src/add-ons/media/media-add-ons/reader/Jamfile b/src/add-ons/media/media-add-ons/reader/Jamfile
index 8a0a6bb9fd..53403ee8e1 100644
--- a/src/add-ons/media/media-add-ons/reader/Jamfile
+++ b/src/add-ons/media/media-add-ons/reader/Jamfile
@@ -8,6 +8,7 @@ Addon reader.media_addon : media :
 	MediaReader.cpp
 	MediaReaderAddOn.cpp
 	misc.cpp
+	: true
 ;
 
 LinkSharedOSLibs reader.media_addon : be media ;
diff --git a/src/add-ons/media/media-add-ons/reader/MediaReaderAddOn.cpp b/src/add-ons/media/media-add-ons/reader/MediaReaderAddOn.cpp
index f32c7331ec..e83e8140c3 100644
--- a/src/add-ons/media/media-add-ons/reader/MediaReaderAddOn.cpp
+++ b/src/add-ons/media/media-add-ons/reader/MediaReaderAddOn.cpp
@@ -171,12 +171,12 @@ status_t MediaReaderAddOn::SniffTypeKind(
 }
 
 // -------------------------------------------------------- //
-// stuffing
+// main
 // -------------------------------------------------------- //
 
 int main(int argc, char *argv[])
 {
-
+	fprintf(stderr,"main called for MediaReaderAddOn\n");
 }
 
 // -------------------------------------------------------- //
diff --git a/src/add-ons/media/media-add-ons/writer/Jamfile b/src/add-ons/media/media-add-ons/writer/Jamfile
index d657764a1b..985c0394b0 100644
--- a/src/add-ons/media/media-add-ons/writer/Jamfile
+++ b/src/add-ons/media/media-add-ons/writer/Jamfile
@@ -8,6 +8,7 @@ Addon writer.media_addon : media :
 	MediaWriter.cpp
 	MediaWriterAddOn.cpp
 	misc.cpp
+	: true
 ;
 
 LinkSharedOSLibs writer.media_addon : be media ;
diff --git a/src/add-ons/media/media-add-ons/writer/MediaWriterAddOn.cpp b/src/add-ons/media/media-add-ons/writer/MediaWriterAddOn.cpp
index f7ff5c6e05..ad691fcc51 100644
--- a/src/add-ons/media/media-add-ons/writer/MediaWriterAddOn.cpp
+++ b/src/add-ons/media/media-add-ons/writer/MediaWriterAddOn.cpp
@@ -162,7 +162,7 @@ status_t MediaWriterAddOn::SniffTypeKind(
 				int32 * out_internal_id,
 				void * _reserved)
 {
-	fprintf(stderr,"MediaReaderAddOn::SniffTypeKind\n");
+	fprintf(stderr,"MediaWriterAddOn::SniffTypeKind\n");
 	return AbstractFileInterfaceAddOn::SniffTypeKind(type,in_kinds,
 													 B_BUFFER_CONSUMER,
 													 out_quality,out_internal_id,
@@ -170,12 +170,12 @@ status_t MediaWriterAddOn::SniffTypeKind(
 }
 
 // -------------------------------------------------------- //
-// stuffing
+// main
 // -------------------------------------------------------- //
 
 int main(int argc, char *argv[])
 {
-
+	fprintf(stderr,"main called for MediaWriterAddOn\n");
 }
 
 // -------------------------------------------------------- //