-#serial 2
+#serial 9
dnl autoconf tests required for use of mbswidth.c
dnl From Bruno Haible.
-AC_DEFUN(jm_PREREQ_MBSWIDTH,
+AC_DEFUN([gl_MBSWIDTH],
[
- AC_REQUIRE([AC_HEADER_STDC])
- AC_REQUIRE([AM_C_PROTOTYPES])
- AC_CHECK_HEADERS(limits.h stdlib.h string.h wchar.h wctype.h)
- AC_CHECK_FUNCS(isascii iswprint wcwidth)
+ AC_CHECK_HEADERS_ONCE(wchar.h wctype.h)
+ AC_CHECK_FUNCS_ONCE(isascii iswprint mbsinit)
+ AC_CHECK_FUNCS(iswcntrl wcwidth)
jm_FUNC_MBRTOWC
- headers='
-# if HAVE_WCHAR_H
-# include <wchar.h>
-# endif
-'
- AC_CHECK_DECLS([wcwidth], , , $headers)
- AC_MBSTATE_T
+
+ AC_CACHE_CHECK([whether wcwidth is declared], ac_cv_have_decl_wcwidth,
+ [AC_TRY_COMPILE([
+/* AIX 3.2.5 declares wcwidth in <string.h>. */
+#if HAVE_STRING_H
+# include <string.h>
+#endif
+#if HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+], [
+#ifndef wcwidth
+ char *p = (char *) wcwidth;
+#endif
+], ac_cv_have_decl_wcwidth=yes, ac_cv_have_decl_wcwidth=no)])
+ if test $ac_cv_have_decl_wcwidth = yes; then
+ ac_val=1
+ else
+ ac_val=0
+ fi
+ AC_DEFINE_UNQUOTED(HAVE_DECL_WCWIDTH, $ac_val,
+ [Define to 1 if you have the declaration of wcwidth(), and to 0 otherwise.])
+
+ AC_TYPE_MBSTATE_T
])