--- interface/tk_c.c.orig 2009-02-09 17:57:06.000000000 -0200 +++ interface/tk_c.c 2009-02-09 18:06:22.000000000 -0200 @@ -50,6 +50,8 @@ #include <sys/ipc.h> #include <sys/shm.h> #include <sys/sem.h> +// Legacy code need this definition -> see man page for TclInterp +#define USE_INTERP_RESULT #include <tcl.h> #include <tk.h> #include <sys/wait.h>