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# wcwidth.m4 serial 3
dnl Copyright (C) 2006 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_WCWIDTH],
[
dnl Persuade glibc <wchar.h> to declare wcwidth().
AC_REQUIRE([AC_GNU_SOURCE])
AC_REQUIRE([AC_C_INLINE])
AC_REQUIRE([gt_TYPE_WCHAR_T])
AC_CHECK_HEADERS_ONCE([wchar.h wctype.h])
AC_CHECK_FUNCS_ONCE([iswprint wcwidth])
AC_CHECK_DECLS([wcwidth], [], [], [
/* 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
])])
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