From 7e8a04b35a0ff0487a76f84efcf311d2919ee07a Mon Sep 17 00:00:00 2001
From: nhmall <nhmall@nethack.org>
Date: Mon, 13 Jan 2025 09:36:48 -0500
Subject: [PATCH] eliminate a couple of build warnings (noticed with clang)

2025-01-12T19:08:53.4759829Z ../win/curses/cursinvt.c:191:5: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
2025-01-12T19:08:53.4760198Z   191 |     case KEY_RIGHT:
2025-01-12T19:08:53.4767986Z       |     ^
2025-01-12T19:08:53.4967354Z ../win/curses/cursinvt.c:191:5: note: insert '__attribute__((fallthrough));' to silence this warning
2025-01-12T19:08:53.4967860Z   191 |     case KEY_RIGHT:
2025-01-12T19:08:53.4968026Z       |     ^
2025-01-12T19:08:53.4968219Z       |     __attribute__((fallthrough));
2025-01-12T19:08:53.4968404Z ../win/curses/cursinvt.c:191:5: note: insert 'break;' to avoid fall-through
2025-01-12T19:08:53.4968583Z   191 |     case KEY_RIGHT:
2025-01-12T19:08:53.4968709Z       |     ^
2025-01-12T19:08:53.4968820Z       |     break;
2025-01-12T19:08:53.5099063Z 1 warning generated.

2025-01-12T19:08:53.8002074Z ../win/X11/winX.c:995:5: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
2025-01-12T19:08:53.8008155Z   995 |     case NHW_TEXT:
2025-01-12T19:08:53.8008513Z       |     ^
2025-01-12T19:08:53.8032511Z ../win/X11/winX.c:995:5: note: insert '__attribute__((fallthrough));' to silence this warning
2025-01-12T19:08:53.8032899Z   995 |     case NHW_TEXT:
2025-01-12T19:08:53.8033057Z       |     ^
2025-01-12T19:08:53.8033219Z       |     __attribute__((fallthrough));
2025-01-12T19:08:53.8033395Z ../win/X11/winX.c:995:5: note: insert 'break;' to avoid fall-through
2025-01-12T19:08:53.8033644Z   995 |     case NHW_TEXT:
2025-01-12T19:08:53.8033783Z       |     ^
2025-01-12T19:08:53.8033912Z       |     break;
2025-01-12T19:08:53.8800783Z 1 warning generated.
---
 win/X11/winX.c        | 3 ++-
 win/curses/cursinvt.c | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/win/X11/winX.c b/win/X11/winX.c
index d9a7cacf4..db95dea15 100644
--- a/win/X11/winX.c
+++ b/win/X11/winX.c
@@ -991,7 +991,8 @@ X11_putstr(winid window, int attr, const char *str)
         X11_destroy_nhwindow(window);
         *wp = window_list[new_win];
         window_list[new_win].type = NHW_NONE; /* allow re-use */
-        /* fall through */
+        FALLTHROUGH;
+        /*FALLTHRU*/
     case NHW_TEXT:
         add_to_text_window(wp, attr, str);
         break;
diff --git a/win/curses/cursinvt.c b/win/curses/cursinvt.c
index 3b0749d5c..4095ceb5a 100644
--- a/win/curses/cursinvt.c
+++ b/win/curses/cursinvt.c
@@ -187,6 +187,7 @@ curs_scroll_invt(WINDOW *win UNUSED)
             res = 1;
             break;
         }
+        FALLTHROUGH;
         /*FALLTHRU*/
     case KEY_RIGHT:
     case KEY_NPAGE: