https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=fc26624377d2794c70e7464e83b7442a8bd3c705
commit fc26624377d2794c70e7464e83b7442a8bd3c705 Author: Takashi Yano <[email protected]> Date: Thu Feb 17 00:34:40 2022 +0900 Cygwin: console: Call fix_tab_position() only if having broken tabs. - Calling fix_tab_position() is necessary in Windows 10 with xterm compatible mode enabled, because it has a problem that the tab positions will be broken when the window size is changed. Fortunately, this problem has been fixed in Windows 11. Therefore, with this patch, necessity of fix_tab_position() call is determined by referring to wincap.has_con_broken_tabs(), which is recently introduced. Diff: --- winsup/cygwin/fhandler_console.cc | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc index 1dfe8e0c7..03ec88804 100644 --- a/winsup/cygwin/fhandler_console.cc +++ b/winsup/cygwin/fhandler_console.cc @@ -286,7 +286,8 @@ fhandler_console::cons_master_thread (handle_set_t *p, tty *ttyp) { con.scroll_region.Top = 0; con.scroll_region.Bottom = -1; - if (wincap.has_con_24bit_colors () && !con_is_legacy) + if (wincap.has_con_24bit_colors () && !con_is_legacy + && wincap.has_con_broken_tabs ()) fix_tab_position (p->output_handle); ttyp->kill_pgrp (SIGWINCH); } @@ -664,7 +665,8 @@ fhandler_console::send_winch_maybe () { con.scroll_region.Top = 0; con.scroll_region.Bottom = -1; - if (wincap.has_con_24bit_colors () && !con_is_legacy) + if (wincap.has_con_24bit_colors () && !con_is_legacy + && wincap.has_con_broken_tabs ()) fix_tab_position (get_output_handle ()); get_ttyp ()->kill_pgrp (SIGWINCH); return true; @@ -2321,7 +2323,7 @@ fhandler_console::char_command (char c) if (con.args[i] == 1049) { con.screen_alternated = (c == 'h'); - need_fix_tab_position = true; + need_fix_tab_position = wincap.has_con_broken_tabs (); } if (con.args[i] == 1) /* DECCKM */ con.cursor_key_app_mode = (c == 'h');
