30 lines
876 B
Plaintext
30 lines
876 B
Plaintext
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dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues.
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dnl Copyright (C) 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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dnl Written by Eric Blake.
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# wchar.m4 serial 1
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AC_DEFUN([gl_WCHAR_H],
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[
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AC_CACHE_CHECK([whether <wchar.h> is standalone],
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[gl_cv_header_wchar_h_standalone],
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[AC_COMPILE_IFELSE([[#include <wchar.h>
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wchar_t w;]],
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[gl_cv_header_wchar_h_standalone=yes],
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[gl_cv_header_wchar_h_standalone=no])])
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if test $gl_cv_header_wchar_h_standalone = yes; then
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WCHAR_H=
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else
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gl_ABSOLUTE_HEADER([wchar.h])
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ABSOLUTE_WCHAR_H=\"$gl_cv_absolute_wchar_h\"
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WCHAR_H=wchar.h
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fi
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AC_SUBST([ABSOLUTE_WCHAR_H])
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AC_SUBST([WCHAR_H])
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])
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