diff --git a/src/proto/syntax.pro b/src/proto/syntax.pro
index c33a890..ad442e6 100644
--- a/src/proto/syntax.pro
+++ b/src/proto/syntax.pro
@@ -1,47 +1,47 @@
 /* syntax.c */
-void syntax_start __ARGS((win_T *wp, linenr_T lnum));
-void syn_stack_free_all __ARGS((buf_T *buf));
-void syn_stack_apply_changes __ARGS((buf_T *buf));
-void syntax_end_parsing __ARGS((linenr_T lnum));
-int syntax_check_changed __ARGS((linenr_T lnum));
-int get_syntax_attr __ARGS((colnr_T col, int *can_spell));
-void syntax_clear __ARGS((buf_T *buf));
-void ex_syntax __ARGS((exarg_T *eap));
-int syntax_present __ARGS((buf_T *buf));
-void set_context_in_syntax_cmd __ARGS((expand_T *xp, char_u *arg));
-char_u *get_syntax_name __ARGS((expand_T *xp, int idx));
-int syn_get_id __ARGS((win_T *wp, long lnum, colnr_T col, int trans, int *spellp));
-int syn_get_foldlevel __ARGS((win_T *wp, long lnum));
-void init_highlight __ARGS((int both, int reset));
-int load_colors __ARGS((char_u *name));
-void do_highlight __ARGS((char_u *line, int forceit, int init));
-void free_highlight __ARGS((void));
-void restore_cterm_colors __ARGS((void));
-void set_normal_colors __ARGS((void));
-char_u *hl_get_font_name __ARGS((void));
-void hl_set_font_name __ARGS((char_u *font_name));
-void hl_set_bg_color_name __ARGS((char_u *name));
-void hl_set_fg_color_name __ARGS((char_u *name));
-void clear_hl_tables __ARGS((void));
-int hl_combine_attr __ARGS((int char_attr, int prim_attr));
-attrentry_T *syn_gui_attr2entry __ARGS((int attr));
-int syn_attr2attr __ARGS((int attr));
-attrentry_T *syn_term_attr2entry __ARGS((int attr));
-attrentry_T *syn_cterm_attr2entry __ARGS((int attr));
-char_u *highlight_has_attr __ARGS((int id, int flag, int modec));
-char_u *highlight_color __ARGS((int id, char_u *what, int modec));
-long_u highlight_gui_color_rgb __ARGS((int id, int fg));
-int syn_name2id __ARGS((char_u *name));
-int highlight_exists __ARGS((char_u *name));
-char_u *syn_id2name __ARGS((int id));
-int syn_namen2id __ARGS((char_u *linep, int len));
-int syn_check_group __ARGS((char_u *pp, int len));
-int syn_id2attr __ARGS((int hl_id));
-int syn_id2colors __ARGS((int hl_id, guicolor_T *fgp, guicolor_T *bgp));
-int syn_get_final_id __ARGS((int hl_id));
-void highlight_gui_started __ARGS((void));
-int highlight_changed __ARGS((void));
-void set_context_in_highlight_cmd __ARGS((expand_T *xp, char_u *arg));
-char_u *get_highlight_name __ARGS((expand_T *xp, int idx));
-void free_highlight_fonts __ARGS((void));
+extern void syntax_start __ARGS((win_T *wp, linenr_T lnum));
+extern void syn_stack_free_all __ARGS((buf_T *buf));
+extern void syn_stack_apply_changes __ARGS((buf_T *buf));
+extern void syntax_end_parsing __ARGS((linenr_T lnum));
+extern int syntax_check_changed __ARGS((linenr_T lnum));
+extern int get_syntax_attr __ARGS((colnr_T col, int *can_spell));
+extern void syntax_clear __ARGS((buf_T *buf));
+extern void ex_syntax __ARGS((exarg_T *eap));
+extern int syntax_present __ARGS((buf_T *buf));
+extern void set_context_in_syntax_cmd __ARGS((expand_T *xp, char_u *arg));
+extern char_u *get_syntax_name __ARGS((expand_T *xp, int idx));
+extern int syn_get_id __ARGS((win_T *wp, long lnum, colnr_T col, int trans, int *spellp));
+extern int syn_get_foldlevel __ARGS((win_T *wp, long lnum));
+extern void init_highlight __ARGS((int both, int reset));
+extern int load_colors __ARGS((char_u *name));
+extern void do_highlight __ARGS((char_u *line, int forceit, int init));
+extern void free_highlight __ARGS((void));
+extern void restore_cterm_colors __ARGS((void));
+extern void set_normal_colors __ARGS((void));
+extern char_u *hl_get_font_name __ARGS((void));
+extern void hl_set_font_name __ARGS((char_u *font_name));
+extern void hl_set_bg_color_name __ARGS((char_u *name));
+extern void hl_set_fg_color_name __ARGS((char_u *name));
+extern void clear_hl_tables __ARGS((void));
+extern int hl_combine_attr __ARGS((int char_attr, int prim_attr));
+extern attrentry_T *syn_gui_attr2entry __ARGS((int attr));
+extern int syn_attr2attr __ARGS((int attr));
+extern attrentry_T *syn_term_attr2entry __ARGS((int attr));
+extern attrentry_T *syn_cterm_attr2entry __ARGS((int attr));
+extern char_u *highlight_has_attr __ARGS((int id, int flag, int modec));
+extern char_u *highlight_color __ARGS((int id, char_u *what, int modec));
+extern long_u highlight_gui_color_rgb __ARGS((int id, int fg));
+extern int syn_name2id __ARGS((char_u *name));
+extern int highlight_exists __ARGS((char_u *name));
+extern char_u *syn_id2name __ARGS((int id));
+extern int syn_namen2id __ARGS((char_u *linep, int len));
+extern int syn_check_group __ARGS((char_u *pp, int len));
+extern int syn_id2attr __ARGS((int hl_id));
+extern int syn_id2colors __ARGS((int hl_id, guicolor_T *fgp, guicolor_T *bgp));
+extern int syn_get_final_id __ARGS((int hl_id));
+extern void highlight_gui_started __ARGS((void));
+extern int highlight_changed __ARGS((void));
+extern void set_context_in_highlight_cmd __ARGS((expand_T *xp, char_u *arg));
+extern char_u *get_highlight_name __ARGS((expand_T *xp, int idx));
+extern void free_highlight_fonts __ARGS((void));
 /* vim: set ft=c : */