gui: Try to link against libncursesw.

This variant of the curses library supports wide characters so we
should link against it if it is available. If it is not, we may still
fall back to libcurses instead.

diff --git a/configure.ac b/configure.ac
index 45557f6d2bfb80bded7fc11b088b4185aaf55da6..e1fa8116cd830648363150415d5358d1f8fe1942 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -471,11 +471,16 @@ fi
 AC_CHECK_HEADER(curses.h, [], [
        have_curses="no"
 ])
-AC_CHECK_LIB([curses], [initscr], [], [
-       have_curses="no"
-])
+gui_ldflags="$curses_libs"
+AC_CHECK_LIB([ncursesw], [initscr],
+       [gui_ldflags="$curses_libs -lncursesw"], [
+               AC_CHECK_LIB([curses], [initscr],
+                       [gui_ldflags="$curses_libs -lcurses"],
+                       [have_curses="no"]
+               )
+       ]
+)
 if test "$have_curses" = "yes"; then
-       gui_ldflags="$curses_libs -lcurses"
        AC_SUBST(curses_cppflags)
        extras="$extras gui"
        executables="$executables gui"