From 2ab8fb83ba7d210c7c377b5b417f79822a6f7724 Mon Sep 17 00:00:00 2001
From: nia <nia@NetBSD.org>
Date: Wed, 14 Jul 2021 20:17:13 +0200
Subject: [PATCH] netbsd: Support curses libraries without ncurses mouse
 support

This adds a configure check for the ncurses getmouse() function
and disables mouse-related code paths when mouse support is
not present in the curses library.

This is necessary for stable versions of NetBSD's libcurses, the
development version has stub mouse functions for compatibility
with ncurses.

Signed-off-by: Nia Alarie <nia@NetBSD.org>
---
 CRT.c           | 4 ++++
 InfoScreen.c    | 2 ++
 ScreenManager.c | 2 ++
 configure.ac    | 1 +
 4 files changed, 9 insertions(+)

diff --git a/CRT.c b/CRT.c
index 16cfd63a..4bd409c1 100644
--- a/CRT.c
+++ b/CRT.c
@@ -836,7 +836,9 @@ void CRT_init(const Settings* settings, bool allowUnicode) {
    nonl();
    intrflush(stdscr, false);
    keypad(stdscr, true);
+#ifdef HAVE_GETMOUSE
    mouseinterval(0);
+#endif
    curs_set(0);
 
    if (has_colors()) {
@@ -910,10 +912,12 @@ void CRT_init(const Settings* settings, bool allowUnicode) {
 #endif
       CRT_treeStrAscii;
 
+#ifdef HAVE_GETMOUSE
 #if NCURSES_MOUSE_VERSION > 1
    mousemask(BUTTON1_RELEASED | BUTTON4_PRESSED | BUTTON5_PRESSED, NULL);
 #else
    mousemask(BUTTON1_RELEASED, NULL);
+#endif
 #endif
 
    CRT_degreeSign = initDegreeSign();
diff --git a/InfoScreen.c b/InfoScreen.c
index 259ecee3..a62b7c0d 100644
--- a/InfoScreen.c
+++ b/InfoScreen.c
@@ -106,6 +106,7 @@ void InfoScreen_run(InfoScreen* this) {
          }
       }
 
+#ifdef HAVE_GETMOUSE
       if (ch == KEY_MOUSE) {
          MEVENT mevent;
          int ok = getmouse(&mevent);
@@ -127,6 +128,7 @@ void InfoScreen_run(InfoScreen* this) {
             #endif
          }
       }
+#endif
 
       if (this->inc->active) {
          IncSet_handleKey(this->inc, ch, panel, IncSet_getListItemValue, this->lines);
diff --git a/ScreenManager.c b/ScreenManager.c
index 8ec60119..c50d1c4a 100644
--- a/ScreenManager.c
+++ b/ScreenManager.c
@@ -172,6 +172,7 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
       ch = getch();
 
       HandlerResult result = IGNORED;
+#ifdef HAVE_GETMOUSE
       if (ch == KEY_MOUSE && this->settings->enableMouse) {
          ch = ERR;
          MEVENT mevent;
@@ -212,6 +213,7 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
             }
          }
       }
+#endif
       if (ch == ERR) {
          if (sortTimeout > 0)
             sortTimeout--;
diff --git a/configure.ac b/configure.ac
index bb92816f..be40187a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -352,6 +352,7 @@ if test "$my_htop_platform" = "solaris"; then
    AC_DEFINE([ERR], [(-1)], [Predefine ncurses macro.])
 fi
 AC_CHECK_FUNCS( [set_escdelay] )
+AC_CHECK_FUNCS( [getmouse] )
 
 
 AC_ARG_ENABLE([hwloc],