patch 8.2.1509: vertical separator is cleared when dragging a popup window Commit: https://github.com/vim/vim/commit/9943b3d97955ece99c747c959e0a7d493bb762bb Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 22 17:21:14 2020 +0200 patch 8.2.1509: vertical separator is cleared when dragging a popup window Problem: Vertical separator is cleared when dragging a popup window using a multi-byte character for the border. Solution: Only clear the character before the window if it is using a multi-byte character. (closes #6766)

/* vi:set ts=8 sts=4 sw=4 noet:
 *
 * VIM - Vi IMproved	by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 */

#ifdef __QNXNTO__
# include <sys/procmgr.h>
#endif

#define	USE_TMPNAM

#define POSIX	    // Used by pty.c

#if defined(FEAT_GUI_PHOTON)
extern int is_photon_available;
#endif