Fix the cast used to prevent compile time warning about an always false test.

[deliverable/binutils-gdb.git] / gdb / gdb_curses.h

diff --git a/gdb/gdb_curses.h b/gdb/gdb_curses.h
index 1e4bfcd8154710cff8529d83fb0cf5a327b6bad6..1020aaa3c5562fbd312a432567f0e3dcffb186ba 100644 (file)
--- a/gdb/gdb_curses.h
+++ b/gdb/gdb_curses.h
@@ -1,12 +1,12 @@
 /* Portable <curses.h>.
 
-   Copyright 2004 Free Software Foundation, Inc.
+   Copyright (C) 2004-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,14 +15,35 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef GDB_CURSES_H
 #define GDB_CURSES_H 1
 
-#if defined (HAVE_NCURSES_H)
+#ifdef __MINGW32__
+/* Windows API headers, included e.g. by serial.h, define MOUSE_MOVED,
+   and so does PDCurses's curses.h, but for an entirely different
+   purpose.  Since we don't use the Windows semantics of MOUSE_MOVED
+   anywhere, avoid compiler warnings by undefining MOUSE_MOVED before
+   including curses.h.  */
+#undef MOUSE_MOVED
+/* Likewise, KEY_EVENT is defined by ncurses.h, but also by Windows
+   API headers.  */
+#undef KEY_EVENT
+#endif
+
+/* On Solaris and probably other SysVr4 derived systems, we need to define
+   NOMACROS so the native <curses.h> doesn't define clear which interferes
+   with the clear member of class string_file.  ncurses potentially has a
+   similar problem and fix.  */
+#define NOMACROS
+#define NCURSES_NOMACROS
+
+#if defined (HAVE_NCURSESW_NCURSES_H)
+#include <ncursesw/ncurses.h>
+#elif defined (HAVE_NCURSES_NCURSES_H)
+#include <ncurses/ncurses.h>
+#elif defined (HAVE_NCURSES_H)
 #include <ncurses.h>
 #elif defined (HAVE_CURSESX_H)
 #include <cursesX.h>
@@ -30,4 +51,24 @@
 #include <curses.h>
 #endif
 
+#if defined (HAVE_NCURSES_TERM_H)
+#include <ncurses/term.h>
+#elif defined (HAVE_TERM_H)
+#include <term.h>
+#else
+/* On MinGW, a real termcap library is usually not present.  Stub versions
+   of the termcap functions will be built from stub-termcap.c.  Readline
+   provides its own extern declarations when there's no termcap.h; do the
+   same here for the termcap functions used in GDB.  */
+EXTERN_C int tgetnum (const char *);
 #endif
+
+/* SunOS's curses.h has a '#define reg register' in it.  Thank you Sun.  */
+/* Ditto for:
+   -bash-4.2$ uname -a
+   AIX power-aix 1 7 00F84C0C4C00  */
+#ifdef reg
+#undef reg
+#endif
+
+#endif /* gdb_curses.h */