tasknc: fix build with ncurses 6.3
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From f74ea0641e9bf287acf22fac9f6eeea571b01800 Mon Sep 17 00:00:00 2001
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From: Sergei Trofimovich <slyich@gmail.com>
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Date: Sat, 6 Nov 2021 11:28:04 +0000
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Subject: [PATCH] src/keys.c: used KEY_EVENT only if it exists
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On ncurses-6.3 the build fails as:
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src/keys.c:122:6: error: 'KEY_EVENT' undeclared here (not in a function); did you mean 'KEY_SLEFT'?
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122 | {KEY_EVENT, "event"},
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| ^~~~~~~~~
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| KEY_SLEFT
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ncurses-6.3 deprecated KEY_EVENT as:
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* mark wgetch-events feature as deprecated.
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+ prevent KEY_EVENT from appearing in curses.h unless the
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configure option --enable-wgetch-events is used.
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---
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src/keys.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/src/keys.c b/src/keys.c
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index f62bdae..d35e425 100644
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--- a/src/keys.c
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+++ b/src/keys.c
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@@ -119,7 +119,10 @@ struct keymap keymaps[] = {
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{KEY_UNDO, "undo"},
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{KEY_MOUSE, "mouse"},
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{KEY_RESIZE, "resize"},
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+/* Optional deprecated ncurses feature. */
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+#ifdef KEY_EVENT
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{KEY_EVENT, "event"},
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+#endif
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{1, "C-a"},
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{2, "C-b"},
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{3, "C-c"},
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