On 29/04/2015 2:21 a.m., Paul Martin wrote: > Thank you Amos, > but I got the same problem with squid 3.5.3-20150456-r13812 > > Any other suggestions ? Unless you are cross-building, no. It means your libc does not supply the specific GNU atomics __sync_*() API Squid makes use of. Note that is different from pthreads, general "atomic support" or even C++11 atomics. For cross-building it is: ./configure squid_cv_gnu_atomics=yes ... but only use that if you are certain the target machine libc has the right API available *and working*. Otherwise all you are doing is building a Squid binary that will corrupt the shared memory it uses. Amos _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users