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#serial 4
dnl autoconf tests required for use of mbswidth.c
dnl From Bruno Haible.
AC_DEFUN(jm_PREREQ_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)
jm_FUNC_MBRTOWC
headers='
# if HAVE_WCHAR_H
# include <wchar.h>
# endif
'
AC_CHECK_DECLS([wcwidth], , , $headers)
AC_MBSTATE_T
])
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