patch 7.4.1611
Problem: The versplit feature makes the code uneccessary complicated.
Solution: Remove FEAT_VERTSPLIT, always support vertical splits when
FEAT_WINDOWS is defined.
diff --git a/src/globals.h b/src/globals.h
index bd9ef5c..05dec4a 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -427,7 +427,7 @@
EXTERN int drag_status_line INIT(= FALSE); /* dragging the status line */
EXTERN int postponed_mouseshape INIT(= FALSE); /* postponed updating the
mouse pointer shape */
-# ifdef FEAT_VERTSPLIT
+# ifdef FEAT_WINDOWS
EXTERN int drag_sep_line INIT(= FALSE); /* dragging vert separator */
# endif
# endif
@@ -1547,9 +1547,7 @@
EXTERN char_u e_wildexpand[] INIT(= N_("E79: Cannot expand wildcards"));
#ifdef FEAT_WINDOWS
EXTERN char_u e_winheight[] INIT(= N_("E591: 'winheight' cannot be smaller than 'winminheight'"));
-# ifdef FEAT_VERTSPLIT
EXTERN char_u e_winwidth[] INIT(= N_("E592: 'winwidth' cannot be smaller than 'winminwidth'"));
-# endif
#endif
EXTERN char_u e_write[] INIT(= N_("E80: Error while writing"));
EXTERN char_u e_zerocount[] INIT(= N_("Zero count"));