release/src/router/nginx/auto/lib/libatomic/conf

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