/* The definition of _GL_WARN_ON_USE is copied here. */
-/* Define wint_t. (Also done in wctype.in.h.) */
+/* Define wint_t and WEOF. (Also done in wctype.in.h.) */
#if !@HAVE_WINT_T@ && !defined wint_t
# define wint_t int
# ifndef WEOF
# define WEOF -1
# endif
+#else
+# ifndef WEOF
+# define WEOF ((wint_t) -1)
+# endif
#endif
_GL_FUNCDECL_RPL (wcwidth, int, (wchar_t));
_GL_CXXALIAS_RPL (wcwidth, int, (wchar_t));
# else
-# if !defined wcwidth && !@HAVE_DECL_WCWIDTH@
+# if !@HAVE_DECL_WCWIDTH@
/* wcwidth exists but is not declared. */
_GL_FUNCDECL_SYS (wcwidth, int, (wchar_t));
# endif