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| 1 | # memrchr.m4 serial 5
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| 2 | dnl Copyright (C) 2002, 2003, 2005, 2006 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_MEMRCHR],
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| 8 | [
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| 9 | dnl Persuade glibc <string.h> to declare memrchr().
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| 10 | AC_REQUIRE([AC_GNU_SOURCE])
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| 11 |
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| 12 | AC_CHECK_DECLS_ONCE([memrchr])
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| 13 |
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| 14 | AC_REPLACE_FUNCS(memrchr)
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| 15 | if test $ac_cv_func_memrchr = no; then
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| 16 | gl_PREREQ_MEMRCHR
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| 17 | fi
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| 18 | ])
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| 19 |
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| 20 | # Prerequisites of lib/memrchr.c.
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| 21 | AC_DEFUN([gl_PREREQ_MEMRCHR], [:])
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