diff --git a/Jamfile b/Jamfile
index 4b8819b9d..fb163b1ff 100755
--- a/Jamfile
+++ b/Jamfile
@@ -112,8 +112,7 @@ rule building ( properties * )
 {
 	local result ;
 
-	if <variant>debug in $(properties)
-		&& ( <target-os>linux in $(properties)
+	if ( <target-os>linux in $(properties)
 		|| <target-os>darwin in $(properties) )
 		&& ( <toolset>gcc in $(properties)
 		|| <toolset>darwin in $(properties) )
@@ -218,6 +217,7 @@ lib ws2_32 : : <name>ws2_32 ;
 
 SOURCES =
 	alert
+	assert
 	connection_queue
 	entry
 	escape_string