src: Fix build with clang 16

These are no longer supported in upcoming clang versions.

warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]

Reference: https://archives.gentoo.org/gentoo-dev/message/dd9f2d3082b8b6f8dfbccb0639e6e240

1 files changed, 1 insertions, 1 deletions

diff --git a/src/feh.h b/src/feh.h
index 9afe238..1ae9e6f 100644
--- a/src/feh.h
+++ b/src/feh.h
@@ -160,7 +160,7 @@ void init_buttonbindings(void);
 void setup_stdin(void);
 void restore_stdin(void);
 void feh_event_handle_keypress(XEvent * ev);
-void feh_event_handle_stdin();
+void feh_event_handle_stdin(void);
 void feh_event_handle_generic(winwidget winwid, unsigned int state, KeySym keysym, unsigned int button);
 fehkey *feh_str_to_kb(char * action);
 void feh_action_run(feh_file * file, char *action, winwidget winwid);