=== modified file 'src/as3compile.c'
--- src/as3compile.c	2009-05-22 22:58:24 +0000
+++ src/as3compile.c	2009-05-23 00:43:29 +0000
@@ -161,7 +161,7 @@
     printf("-X , --width                   Set target SWF width\n");
     printf("-Y , --height                  Set target SWF width\n");
     printf("-r , --rate                    Set target SWF framerate\n");
-    printf("-M , --mainclass               Set the name of the main class (extending flash.display.MovieClip)\n");
+    printf("-M , --mainclass               Set the name of the main class (extending flash.display.MovieClip or flash.display.Sprite)\n");
     printf("-l , --library <file>          Include library file <file>. <file> can be an .abc or .swf file.\n");
     printf("-I , --include <dir>           Add additional include dir <dir>.\n");
     printf("-N , --local-with-network      Make output file \"local with networking\"\n");
@@ -253,7 +253,11 @@
         tag = swf_InsertTag(tag, ST_SYMBOLCLASS);
         swf_SetU16(tag, 1);
         swf_SetU16(tag, 0);
-        swf_SetString(tag, as3_getglobalclass());
+        /* user pass the name of the mainclass with
+           -M or--mainclass option, so we will use it.
+           If the mainclass name given is incorrect,
+           it will generate a runtime error */
+        swf_SetString(tag, mainclass);
     } else {
         as3_warning("no global public MovieClip subclass");
     }