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Last change
on this file since 530 was 530, checked in by Yuri Dario, 12 years ago |
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diffutils: initial vendor import of diffutils 3.2.0.
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File size:
1.2 KB
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| 1 | # iswblank.m4 serial 4
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| 2 | dnl Copyright (C) 2011 Free Software Foundation, Inc.
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| 3 | dnl This file is free software; the Free Software Foundation
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| 4 | dnl gives unlimited permission to copy and/or distribute it,
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| 5 | dnl with or without modifications, as long as this notice is preserved.
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| 6 |
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| 7 | AC_DEFUN([gl_FUNC_ISWBLANK],
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| 8 | [
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| 9 | AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
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| 10 | AC_REQUIRE([gl_WCTYPE_H])
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| 11 | dnl Persuade glibc <wctype.h> to declare iswblank().
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| 12 | AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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| 13 | AC_CHECK_FUNCS_ONCE([iswblank])
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| 14 | AC_CHECK_DECLS([iswblank], , , [[
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| 15 | /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
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| 16 | <wchar.h>.
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| 17 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
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| 18 | before <wchar.h>. */
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| 19 | #include <stddef.h>
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| 20 | #include <stdio.h>
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| 21 | #include <time.h>
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| 22 | #include <wchar.h>
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| 23 | #include <wctype.h>
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| 24 | ]])
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| 25 | if test $ac_cv_func_iswblank = no; then
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| 26 | HAVE_ISWBLANK=0
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| 27 | if test $ac_cv_have_decl_iswblank = yes; then
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| 28 | REPLACE_ISWBLANK=1
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| 29 | fi
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| 30 | fi
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| 31 | if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
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| 32 | dnl Redefine all of iswcntrl, ..., towupper in <wctype.h>.
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| 33 | :
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| 34 | else
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| 35 | if test $HAVE_ISWBLANK = 0 || test $REPLACE_ISWBLANK = 1; then
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| 36 | dnl Redefine only iswblank.
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| 37 | :
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| 38 | fi
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| 39 | fi
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| 40 |
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| 41 | ])
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