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/structs.h b/src/structs.h
index 6263242..50e2a68 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -2200,7 +2200,7 @@
struct frame_S
{
char fr_layout; /* FR_LEAF, FR_COL or FR_ROW */
-#ifdef FEAT_VERTSPLIT
+#ifdef FEAT_WINDOWS
int fr_width;
int fr_newwidth; /* new width used in win_equal_rec() */
#endif
@@ -2370,8 +2370,6 @@
status/command line(s) */
#ifdef FEAT_WINDOWS
int w_status_height; /* number of status lines (0 or 1) */
-#endif
-#ifdef FEAT_VERTSPLIT
int w_wincol; /* Leftmost column of window in screen.
use W_WINCOL() */
int w_width; /* Width of window, excluding separation.