This fixes a warning generated by the installed header file under gcc -Wstrict-prototypes.  (The (void) is needed to distinguish a function that takes no arguments from an old-style variadic function.)

--- a/gperl.h
+++ b/gperl.h
@@ -408,7 +408,7 @@ typedef struct {
   void *priv;
 } GPerlArgv;
 
-GPerlArgv * gperl_argv_new ();
+GPerlArgv * gperl_argv_new (void);
 void gperl_argv_update (GPerlArgv *pargv);
 void gperl_argv_free (GPerlArgv *pargv);