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554
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1
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2 # Copyright (C) Igor Sysoev
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660
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3 # Copyright (C) Nginx, Inc.
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554
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4
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5
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6 if [ $NGX_LIBATOMIC != YES ]; then
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7
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8 have=NGX_HAVE_LIBATOMIC . auto/have
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9 CORE_INCS="$CORE_INCS $NGX_LIBATOMIC/src"
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10 LINK_DEPS="$LINK_DEPS $NGX_LIBATOMIC/src/libatomic_ops.a"
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11 CORE_LIBS="$CORE_LIBS $NGX_LIBATOMIC/src/libatomic_ops.a"
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12
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13 else
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14
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15 ngx_feature="atomic_ops library"
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16 ngx_feature_name=NGX_HAVE_LIBATOMIC
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17 ngx_feature_run=yes
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556
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18 ngx_feature_incs="#define AO_REQUIRE_CAS
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19 #include <atomic_ops.h>"
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554
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20 ngx_feature_path=
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21 ngx_feature_libs="-latomic_ops"
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22 ngx_feature_test="long n = 0;
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23 if (!AO_compare_and_swap(&n, 0, 1))
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24 return 1;
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25 if (AO_fetch_and_add(&n, 1) != 1)
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26 return 1;
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27 if (n != 2)
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28 return 1;
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29 AO_nop();"
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30 . auto/feature
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31
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32 if [ $ngx_found = yes ]; then
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33 CORE_LIBS="$CORE_LIBS $ngx_feature_libs"
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34 else
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35
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36 cat << END
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37
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38 $0: error: libatomic_ops library was not found.
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39
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40 END
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41 exit 1
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42 fi
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43 fi
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