gh-123925: Fix building curses on platforms without libncursesw (GH-128405)

diff --git a/Misc/NEWS.d/next/Build/2025-01-02-11-02-45.gh-issue-123925.TLlyUi.rst b/Misc/NEWS.d/next/Build/2025-01-02-11-02-45.gh-issue-123925.TLlyUi.rst
new file mode 100644 (file)
index 0000000..a2a9c6f
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2025-01-02-11-02-45.gh-issue-123925.TLlyUi.rst
@@ -0,0 +1,2 @@
+Fix building the :mod:`curses` module on platforms with libncurses but
+without libncursesw.

diff --git a/Modules/_cursesmodule.c b/Modules/_cursesmodule.c
index 040ffa81153ebe2ba1d06c7d5543279255e2d335..92961af381b9cb31224e2134b8eb96918758c037 100644 (file)
--- a/Modules/_cursesmodule.c
+++ b/Modules/_cursesmodule.c
@@ -138,7 +138,7 @@ typedef chtype attr_t;           /* No attr_t type is available */
 #define STRICT_SYSV_CURSES
 #endif
 
-#if NCURSES_EXT_FUNCS+0 >= 20170401 && NCURSES_EXT_COLORS+0 >= 20170401
+#if defined(HAVE_NCURSESW) && NCURSES_EXT_FUNCS+0 >= 20170401 && NCURSES_EXT_COLORS+0 >= 20170401
 #define _NCURSES_EXTENDED_COLOR_FUNCS   1
 #else
 #define _NCURSES_EXTENDED_COLOR_FUNCS   0