31 lines
934 B
Plaintext
31 lines
934 B
Plaintext
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# wcwidth.m4 serial 8
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dnl Copyright (C) 2006, 2007 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_WCWIDTH],
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[
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dnl Persuade glibc <wchar.h> to declare wcwidth().
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AC_REQUIRE([AC_GNU_SOURCE])
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AC_REQUIRE([AC_C_INLINE])
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AC_REQUIRE([gt_TYPE_WCHAR_T])
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AC_REQUIRE([gt_TYPE_WINT_T])
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AC_CHECK_HEADERS_ONCE([wchar.h])
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AC_CHECK_FUNCS_ONCE([wcwidth])
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AC_CHECK_DECLS([wcwidth], [], [], [
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/* AIX 3.2.5 declares wcwidth in <string.h>. */
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#include <string.h>
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/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
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<wchar.h>.
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BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
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before <wchar.h>. */
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#include <stddef.h>
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#include <stdio.h>
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#include <time.h>
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#include <wchar.h>
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])])
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