diff --git a/src/proto/fold.pro b/src/proto/fold.pro
new file mode 100644
index 0000000..75af305
--- /dev/null
+++ b/src/proto/fold.pro
@@ -0,0 +1,40 @@
+/* fold.c */
+void copyFoldingState __ARGS((win_T *wp_from, win_T *wp_to));
+int hasAnyFolding __ARGS((win_T *win));
+int hasFolding __ARGS((linenr_T lnum, linenr_T *firstp, linenr_T *lastp));
+int hasFoldingWin __ARGS((win_T *win, linenr_T lnum, linenr_T *firstp, linenr_T *lastp, int cache, foldinfo_T *infop));
+int foldLevel __ARGS((linenr_T lnum));
+int lineFolded __ARGS((win_T *win, linenr_T lnum));
+long foldedCount __ARGS((win_T *win, linenr_T lnum, foldinfo_T *infop));
+int foldmethodIsManual __ARGS((win_T *wp));
+int foldmethodIsIndent __ARGS((win_T *wp));
+int foldmethodIsExpr __ARGS((win_T *wp));
+int foldmethodIsMarker __ARGS((win_T *wp));
+int foldmethodIsSyntax __ARGS((win_T *wp));
+int foldmethodIsDiff __ARGS((win_T *wp));
+void closeFold __ARGS((linenr_T lnum, long count));
+void closeFoldRecurse __ARGS((linenr_T lnum));
+void opFoldRange __ARGS((linenr_T first, linenr_T last, int opening, int recurse, int had_visual));
+void openFold __ARGS((linenr_T lnum, long count));
+void openFoldRecurse __ARGS((linenr_T lnum));
+void foldOpenCursor __ARGS((void));
+void newFoldLevel __ARGS((void));
+void foldCheckClose __ARGS((void));
+int foldManualAllowed __ARGS((int create));
+void foldCreate __ARGS((linenr_T start, linenr_T end));
+void deleteFold __ARGS((linenr_T start, linenr_T end, int recursive, int had_visual));
+void clearFolding __ARGS((win_T *win));
+void foldUpdate __ARGS((win_T *wp, linenr_T top, linenr_T bot));
+void foldUpdateAll __ARGS((win_T *win));
+int foldMoveTo __ARGS((int updown, int dir, long count));
+void foldInitWin __ARGS((win_T *newwin));
+int find_wl_entry __ARGS((win_T *win, linenr_T lnum));
+void foldAdjustVisual __ARGS((void));
+void foldAdjustCursor __ARGS((void));
+void cloneFoldGrowArray __ARGS((garray_T *from, garray_T *to));
+void deleteFoldRecurse __ARGS((garray_T *gap));
+void foldMarkAdjust __ARGS((win_T *wp, linenr_T line1, linenr_T line2, long amount, long amount_after));
+int getDeepestNesting __ARGS((void));
+void foldtext_cleanup __ARGS((char_u *str));
+int put_folds __ARGS((FILE *fd, win_T *wp));
+/* vim: set ft=c : */