Use (void) rather than () in function declarations

In C, a function declaration with () allows any set of arguments.
Use (void) to mean "no arguments".

* src/dep.h: Switch () to (void) for functions with no arguments.
* src/makeint.h: Ditto.
* src/os.h: Ditto.
* src/shuffle.h: Ditto.
* src/variable.h: Ditto.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/variable.h b/src/variable.h
index 155d9d63..26a1caf2 100644
--- a/src/variable.h
+++ b/src/variable.h
@@ -133,7 +133,7 @@ char *allocated_variable_expand_for_file (const char *line, struct file *file);
   allocated_variable_expand_for_file (line, (struct file *) 0)
 char *expand_argument (const char *str, const char *end);
 char *variable_expand_string (char *line, const char *string, size_t length);
-char *initialize_variable_output ();
+char *initialize_variable_output (void);
 void install_variable_buffer (char **bufp, size_t *lenp);
 void restore_variable_buffer (char *buf, size_t len);