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| 1 | # glibc2.m4 serial 1
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| 2 | dnl Copyright (C) 2000-2002, 2004 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 | # Test for the GNU C Library, version 2.0 or newer.
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| 8 | # From Bruno Haible.
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| 9 |
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| 10 | AC_DEFUN([gt_GLIBC2],
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| 11 | [
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| 12 | AC_CACHE_CHECK(whether we are using the GNU C Library 2 or newer,
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| 13 | ac_cv_gnu_library_2,
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| 14 | [AC_EGREP_CPP([Lucky GNU user],
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| 15 | [
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| 16 | #include <features.h>
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| 17 | #ifdef __GNU_LIBRARY__
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| 18 | #if (__GLIBC__ >= 2)
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| 19 | Lucky GNU user
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| 20 | #endif
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| 21 | #endif
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| 22 | ],
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| 23 | ac_cv_gnu_library_2=yes,
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| 24 | ac_cv_gnu_library_2=no)
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| 25 | ]
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| 26 | )
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| 27 | AC_SUBST(GLIBC2)
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| 28 | GLIBC2="$ac_cv_gnu_library_2"
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| 29 | ]
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| 30 | )
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