Added $GC_LEAK_DETECTOR. r=smfr

build/mac/BuildNGLayout.pl

@@ -33,6 +33,7 @@ $CARBON					= 0;	# turn on to build with TARGET_CARBON
 $NECKO					= 1;
 $MOZ_FULLCIRCLE			= 0;
 $PROFILE				= 0;
+$GC_LEAK_DETECTOR		= 0;	# turn on to use GC leak detection
 
 $pull{all} 				= 0;
 $pull{lizard} 			= 0;

build/mac/BuildNGLayoutDebug.pl

@@ -66,6 +66,7 @@ $CARBON					= 0;	# Turn on to build with TARGET_CARBON
 $NECKO					= 1;
 $MOZ_FULLCIRCLE			= 0;
 $PROFILE				= 0;
+$GC_LEAK_DETECTOR		= 0;	# turn on to use GC leak detection
 
 $pull{all} 				= 0;
 $pull{lizard} 			= 0;