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have_libkern_osatomic_h="yes"
AC_DEFINE(OF_HAVE_LIBKERN_OSATOMIC_H, 1,
[Whether we have libkern/OSAtomic.h])])
fi
AC_MSG_CHECKING(for atomic operations)
if test x"$have_gcc_atomic_ops" = x"yes"; then
AC_DEFINE(OF_ATOMIC_OPS, 1, [Whether we have atomic operations])
AC_MSG_RESULT(gcc builtins)
elif test x"$have_libkern_osatomic_h" = x"yes"; then
AC_DEFINE(OF_ATOMIC_OPS, 1, [Whether we have atomic operations])
AC_MSG_RESULT(libkern/OSAtomic.h)
else
AC_MSG_RESULT(none)
AC_MSG_ERROR(No atomic operations found! Try --disable-threads.)
fi
fi
|