--- ncurses/curses.priv.h
+++ ncurses/curses.priv.h	2010-10-12 11:56:43.640426282 +0200
@@ -490,6 +490,7 @@ extern NCURSES_EXPORT(int) _nc_mutex_unl
 #ifdef USE_PTHREADS
 #  if USE_WEAK_SYMBOLS
 weak_symbol(pthread_sigmask);
+weak_symbol(pthread_kill);
 weak_symbol(pthread_self);
 weak_symbol(pthread_equal);
 weak_symbol(pthread_mutex_init);
--- ncurses/tty/lib_tstp.c
+++ ncurses/tty/lib_tstp.c	2010-10-12 12:02:27.856426710 +0200
@@ -288,7 +288,11 @@ sigwinch(int sig GCC_UNUSED)
     _nc_globals.have_sigwinch = 1;
 # if USE_PTHREADS_EINTR
     if (_nc_globals.read_thread) {
-	if (!pthread_equal(pthread_self(), _nc_globals.read_thread))
+	if (
+#  if USE_WEAK_SYMBOLS
+            (pthread_self) && (pthread_kill) && (pthread_equal) &&
+#  endif
+	    !pthread_equal(pthread_self(), _nc_globals.read_thread))
 	    pthread_kill(_nc_globals.read_thread, SIGWINCH);
 	_nc_globals.read_thread = 0;
     }