diff --git a/src/proto/gui_gtk.pro b/src/proto/gui_gtk.pro
index 882587e..afe38dc 100644
--- a/src/proto/gui_gtk.pro
+++ b/src/proto/gui_gtk.pro
@@ -14,7 +14,6 @@
 char_u *gui_mch_browse __ARGS((int saving, char_u *title, char_u *dflt, char_u *ext, char_u *initdir, char_u *filter));
 char_u *gui_mch_browsedir __ARGS((char_u *title, char_u *initdir));
 int gui_mch_dialog __ARGS((int type, char_u *title, char_u *message, char_u *buttons, int def_but, char_u *textfield));
-int gui_mch_dialog __ARGS((int type, char_u *title, char_u *message, char_u *buttons, int def_but, char_u *textfield));
 void gui_mch_show_popupmenu __ARGS((vimmenu_T *menu));
 void gui_make_popup __ARGS((char_u *path_name));
 void gui_mch_find_dialog __ARGS((exarg_T *eap));
diff --git a/src/proto/gui_gtk_x11.pro b/src/proto/gui_gtk_x11.pro
index a3bfaa4..d70a7b8 100644
--- a/src/proto/gui_gtk_x11.pro
+++ b/src/proto/gui_gtk_x11.pro
@@ -21,6 +21,7 @@
 char_u *gui_mch_font_dialog __ARGS((char_u *oldval));
 int gui_mch_init_font __ARGS((char_u *font_name, int fontset));
 GuiFont gui_mch_get_font __ARGS((char_u *name, int report_error));
+char_u *gui_mch_get_fontname __ARGS((GuiFont font, char_u *name));
 void gui_mch_set_font __ARGS((GuiFont font));
 void gui_mch_set_fontset __ARGS((GuiFontset fontset));
 void gui_mch_free_font __ARGS((GuiFont font));
diff --git a/src/proto/gui_photon.pro b/src/proto/gui_photon.pro
index c7354a1..54a5659 100644
--- a/src/proto/gui_photon.pro
+++ b/src/proto/gui_photon.pro
@@ -61,6 +61,7 @@
 int gui_mch_init_font __ARGS((char_u *vim_font_name, int fontset));
 int gui_mch_adjust_charsize __ARGS((void));
 GuiFont gui_mch_get_font __ARGS((char_u *vim_font_name, int report_error));
+char_u *gui_mch_get_fontname __ARGS((GuiFont font, char_u *name));
 void gui_mch_set_font __ARGS((GuiFont font));
 void gui_mch_free_font __ARGS((GuiFont font));
 /* vim: set ft=c : */
diff --git a/src/proto/gui_w16.pro b/src/proto/gui_w16.pro
index b43c606..f6b1b4a 100644
--- a/src/proto/gui_w16.pro
+++ b/src/proto/gui_w16.pro
@@ -14,6 +14,7 @@
 void gui_mch_create_scrollbar __ARGS((scrollbar_T *sb, int orient));
 int gui_mch_adjust_charsize __ARGS((void));
 GuiFont gui_mch_get_font __ARGS((char_u *name, int giveErrorIfMissing));
+char_u *gui_mch_get_fontname __ARGS((GuiFont font, char_u *name));
 void gui_mch_free_font __ARGS((GuiFont font));
 guicolor_T gui_mch_get_color __ARGS((char_u *name));
 int gui_mch_haskey __ARGS((char_u *name));
@@ -51,6 +52,7 @@
 void gui_mch_newfont __ARGS((void));
 void gui_mch_settitle __ARGS((char_u *title, char_u *icon));
 void mch_set_mouse_shape __ARGS((int shape));
+char_u *gui_mch_browsedir __ARGS((char_u *title, char_u *initdir));
 char_u *gui_mch_browse __ARGS((int saving, char_u *title, char_u *dflt, char_u *ext, char_u *initdir, char_u *filter));
 int get_cmd_args __ARGS((char *prog, char *cmdline, char ***argvp, char **tofree));
 void gui_mch_prepare __ARGS((int *argc, char **argv));
diff --git a/src/proto/gui_w32.pro b/src/proto/gui_w32.pro
index a953a1d..a8c9793 100644
--- a/src/proto/gui_w32.pro
+++ b/src/proto/gui_w32.pro
@@ -14,6 +14,7 @@
 void gui_mch_create_scrollbar __ARGS((scrollbar_T *sb, int orient));
 int gui_mch_adjust_charsize __ARGS((void));
 GuiFont gui_mch_get_font __ARGS((char_u *name, int giveErrorIfMissing));
+char_u *gui_mch_get_fontname __ARGS((GuiFont font, char_u *name));
 void gui_mch_free_font __ARGS((GuiFont font));
 guicolor_T gui_mch_get_color __ARGS((char_u *name));
 int gui_mch_haskey __ARGS((char_u *name));
diff --git a/src/proto/os_unix.pro b/src/proto/os_unix.pro
index 6018c8f..3554040 100644
--- a/src/proto/os_unix.pro
+++ b/src/proto/os_unix.pro
@@ -11,7 +11,7 @@
 void mch_suspend __ARGS((void));
 void mch_init __ARGS((void));
 void reset_signals __ARGS((void));
-int handle_sighup __ARGS((int when));
+int handle_signal __ARGS((int sig));
 int mch_check_win __ARGS((int argc, char **argv));
 int mch_input_isatty __ARGS((void));
 int mch_can_restore_title __ARGS((void));