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4d9dd87c2c
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24 lines
1.1 KiB
Plaintext
24 lines
1.1 KiB
Plaintext
AC_LANG_PUSH([C])
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AC_MSG_CHECKING([for __sync_add_and_fetch_4])
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdint.h>]],
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[[int32_t v = 1; return __sync_add_and_fetch_4 (&v, (int32_t)10);]])],
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[AC_MSG_RESULT(yes)
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have_sync_add_and_fetch_4=yes],
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[AC_MSG_RESULT(no)
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have_sync_add_and_fetch_4=no])
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AS_IF([test "$have_sync_add_and_fetch_4" = "yes"],
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[AC_SUBST(BSON_HAVE_ATOMIC_32_ADD_AND_FETCH, 1)],
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[AC_SUBST(BSON_HAVE_ATOMIC_32_ADD_AND_FETCH, 0)])
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AC_MSG_CHECKING([for __sync_add_and_fetch_8])
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdint.h>]],
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[[int64_t v; return __sync_add_and_fetch_8 (&v, (int64_t)10);]])],
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[AC_MSG_RESULT(yes)
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have_sync_add_and_fetch_8=yes],
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[AC_MSG_RESULT(no)
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have_sync_add_and_fetch_8=no])
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AS_IF([test "$have_sync_add_and_fetch_8" = "yes"],
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[AC_SUBST(BSON_HAVE_ATOMIC_64_ADD_AND_FETCH, 1)],
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[AC_SUBST(BSON_HAVE_ATOMIC_64_ADD_AND_FETCH, 0)])
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AC_LANG_POP([C])
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