--- api/flac/src/Clib/bglflac.c.orig	2019-07-04 00:09:45.000000000 -0600
+++ api/flac/src/Clib/bglflac.c	2019-07-04 14:03:36.608479002 -0600
@@ -122,6 +122,7 @@ int bgl_flac_dump( char *l, unsigned cha
 
    fprintf( stderr, "\n" );
    fflush( stderr );
+   return 0;
 }
 
 /*---------------------------------------------------------------------*/
--- api/libuv/src/Clib/bgluv.c.orig	2019-07-04 14:01:31.496607770 -0600
+++ api/libuv/src/Clib/bgluv.c	2019-07-04 14:32:57.822811957 -0600
@@ -2020,6 +2020,8 @@ string_array_to_vector( char *array[] )
    for( i = 0, runner = array; i < len; i++, runner++ ) {
       VECTOR_SET( res, i, string_to_bstring( *runner ) );
    }
+
+   return res;
 }
 
 /*---------------------------------------------------------------------*/
--- api/phidget/src/Clib/bglphidget.c.orig	2019-07-04 00:09:45.000000000 -0600
+++ api/phidget/src/Clib/bglphidget.c	2019-07-04 14:02:52.921523965 -0600
@@ -1647,6 +1647,7 @@ bgl_phidget_encoder_add_event_listener(
       return CPhidgetEncoder_set_OnIndex_Handler(
 	 id, &bgl_encoderindex_handler, hdl );
    }
+   return -1;
 }
 
 /*---------------------------------------------------------------------*/
--- api/ssl/src/C/bglssl.c.orig	2019-07-04 00:09:45.000000000 -0600
+++ api/ssl/src/C/bglssl.c	2019-07-04 13:59:34.256728457 -0600
@@ -1508,6 +1508,7 @@ bgl_ssl_connection_close( ssl_connection
    SSL *_ssl = CCON( ssl )->BgL_z42nativez42;
 
    SSL_free( _ssl );
+   return 0;
 }
 
 /*---------------------------------------------------------------------*/
@@ -2493,6 +2494,7 @@ unsupported:
 BGL_RUNTIME_DEF obj_t
 bgl_ssl_ctx_close( secure_context sc ) {
    SSL_CTX_free( CSC( sc )->BgL_z42nativez42 );
+   return BNIL;
 }
    
 /*---------------------------------------------------------------------*/
--- runtime/Clib/cmain.c.orig	2019-07-04 11:57:18.459139217 -0600
+++ runtime/Clib/cmain.c	2019-07-04 13:57:22.882863809 -0600
@@ -116,10 +116,6 @@ bigloo_exit( obj_t val ) {
    
    n = (long)INTEGERP( val ) ? (long)CINT( val ) : 0;
    exit( n );
-   
-   BGL_MUTEX_UNLOCK( bgl_exit_mutex() );
-   
-   return val;
 }
 
 /*---------------------------------------------------------------------*/
--- runtime/Clib/cports.c.orig	2019-07-04 14:32:03.912846716 -0600
+++ runtime/Clib/cports.c	2019-07-04 14:32:14.827836833 -0600
@@ -1823,6 +1823,7 @@ bgl_input_port_seek( obj_t port, long po
 			"input-port does not support seeking",
 			port );
    }
+   return port;
 }
 
 /*---------------------------------------------------------------------*/
--- runtime/Clib/crgc.c.orig	2019-07-04 00:09:45.000000000 -0600
+++ runtime/Clib/crgc.c	2019-07-04 13:57:22.884863807 -0600
@@ -859,6 +859,7 @@ int rgc_debug_port( obj_t port, char *ms
 	    port, BSTRING_TO_STRING( INPUT_PORT_NAME( port ) ),
 	    matchstart, matchstop, forward, bufpos, bufsiz,
 	    eof ? "eof" : "" );
+   return 0;
 }