+ dnl UnixWare 7.1.1 <wchar.h> has a declaration of a function mbswidth()
+ dnl that clashes with ours.
+ AC_CACHE_CHECK([whether mbswidth is declared in <wchar.h>],
+ ac_cv_have_decl_mbswidth,
+ [AC_TRY_COMPILE([
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+], [
+ char *p = (char *) mbswidth;
+], ac_cv_have_decl_mbswidth=yes, ac_cv_have_decl_mbswidth=no)])
+ if test $ac_cv_have_decl_mbswidth = yes; then
+ ac_val=1
+ else
+ ac_val=0
+ fi
+ AC_DEFINE_UNQUOTED(HAVE_DECL_MBSWIDTH_IN_WCHAR_H, $ac_val,
+ [Define to 1 if you have a declaration of mbswidth() in <wchar.h>, and to 0 otherwise.])
+