ANSIfy as many declarations as possible.
diff --git a/Python/dynload_dl.c b/Python/dynload_dl.c
index af95254..84fc9c4 100644
--- a/Python/dynload_dl.c
+++ b/Python/dynload_dl.c
@@ -16,7 +16,7 @@
 #include "importdl.h"
 
 
-extern char *Py_GetProgramName();
+extern char *Py_GetProgramName(void);
 
 const struct filedescr _PyImport_DynLoadFiletab[] = {
 	{".o", "rb", C_EXTENSION},