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1#serial 7
2
3dnl autoconf tests required for use of mbswidth.c
4dnl From Bruno Haible.
5
6AC_DEFUN([jm_PREREQ_MBSWIDTH],
7[
8 AC_REQUIRE([AC_HEADER_STDC])
9 AC_CHECK_HEADERS(limits.h stdlib.h string.h wchar.h wctype.h)
10 AC_CHECK_FUNCS(isascii iswcntrl iswprint mbsinit wcwidth)
11 jm_FUNC_MBRTOWC
12
13 AC_CACHE_CHECK([whether wcwidth is declared], ac_cv_have_decl_wcwidth,
14 [AC_TRY_COMPILE([
15/* AIX 3.2.5 declares wcwidth in <string.h>. */
16#if HAVE_STRING_H
17# include <string.h>
18#endif
19#if HAVE_WCHAR_H
20# include <wchar.h>
21#endif
22], [
23#ifndef wcwidth
24 char *p = (char *) wcwidth;
25#endif
26], ac_cv_have_decl_wcwidth=yes, ac_cv_have_decl_wcwidth=no)])
27 if test $ac_cv_have_decl_wcwidth = yes; then
28 ac_val=1
29 else
30 ac_val=0
31 fi
32 AC_DEFINE_UNQUOTED(HAVE_DECL_WCWIDTH, $ac_val,
33 [Define to 1 if you have the declaration of wcwidth(), and to 0 otherwise.])
34
35 AC_TYPE_MBSTATE_T
36])