Hi, I followed the squid wiki about CentoOS: I runned these commands: # You will need the usual build chain yum install -y perl gcc autoconf automake make sudo wget # and some extra packages yum install libxml2-devel libcap-devel # to bootstrap and build from bzr needs also the packages yum install libtool-ltdl-devel ./configure command with these options: --prefix=/usr --includedir=/usr/include --datadir=/usr/share --bindir=/usr/sbin --libexecdir=/usr/lib/squid --localstatedir=/var --sysconfdir=/etc/squid And during make command I obtain this: libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::operator+=(int)': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:31: undefined reference to `__sync_add_and_fetch_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' libIpcIo.a(IpcIoFile.o):/home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: more undefined references to `__sync_fetch_and_add_4' follow libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::operator+=(int)': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:31: undefined reference to `__sync_add_and_fetch_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::swap_if(int, int)': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:38: undefined reference to `__sync_bool_compare_and_swap_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::swap_if(int, int)': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:38: undefined reference to `__sync_bool_compare_and_swap_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::swap_if(int, int)': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:38: undefined reference to `__sync_bool_compare_and_swap_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::operator-=(int)': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:32: undefined reference to `__sync_sub_and_fetch_4' libIpcIo.a(IpcIoFile.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(Queue.o): In function `Ipc::Atomic::WordT<int>::swap_if(int, int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:38: undefined reference to `__sync_bool_compare_and_swap_4' ipc/.libs/libipc.a(Queue.o): In function `Ipc::Atomic::WordT<int>::swap_if(int, int)': /home/Gianluigi/squid-3.2.12/src/ipc/Queue.cc:256: undefined reference to `__sync_bool_compare_and_swap_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::operator--(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:36: undefined reference to `__sync_fetch_and_sub_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::operator+=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:31: undefined reference to `__sync_add_and_fetch_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::operator--(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:36: undefined reference to `__sync_fetch_and_sub_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::operator+=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:31: undefined reference to `__sync_add_and_fetch_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::operator-=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:32: undefined reference to `__sync_sub_and_fetch_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::operator++(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:35: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(ReadWriteLock.o): In function `Ipc::Atomic::WordT<int>::operator-=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:32: undefined reference to `__sync_sub_and_fetch_4' ipc/.libs/libipc.a(StoreMap.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(StoreMap.o): In function `Ipc::Atomic::WordT<int>::operator-=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:32: undefined reference to `__sync_sub_and_fetch_4' ipc/.libs/libipc.a(StoreMap.o): In function `Ipc::Atomic::WordT<unsigned char>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_1' ipc/.libs/libipc.a(StoreMap.o): In function `Ipc::Atomic::WordT<int>::operator+=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:31: undefined reference to `__sync_add_and_fetch_4' ipc/.libs/libipc.a(StoreMap.o): In function `Ipc::Atomic::WordT<unsigned char>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_1' ipc/.libs/libipc.a(Pages.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(PagePool.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(PagePool.o): In function `Ipc::Atomic::WordT<int>::operator-=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:32: undefined reference to `__sync_sub_and_fetch_4' ipc/.libs/libipc.a(PagePool.o): In function `Ipc::Atomic::WordT<int>::operator+=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:31: undefined reference to `__sync_add_and_fetch_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<int>::operator-=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:32: undefined reference to `__sync_sub_and_fetch_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<unsigned int>::fetchAndAnd(unsigned int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:41: undefined reference to `__sync_fetch_and_and_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<int>::swap_if(int, int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:38: undefined reference to `__sync_bool_compare_and_swap_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<int>::operator+=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:31: undefined reference to `__sync_add_and_fetch_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<unsigned int>::swap_if(unsigned int, unsigned int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:38: undefined reference to `__sync_bool_compare_and_swap_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<int>::swap_if(int, int)': /home/Gianluigi/squid-3.2.12/src/ipc/mem/PageStack.cc:89: undefined reference to `__sync_bool_compare_and_swap_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<int>::operator+=(int)': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:31: undefined reference to `__sync_add_and_fetch_4' ipc/.libs/libipc.a(PageStack.o): In function `Ipc::Atomic::WordT<int>::get() const': /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' /home/Gianluigi/squid-3.2.12/src/ipc/../../src/ipc/AtomicWord.h:47: undefined reference to `__sync_fetch_and_add_4' collect2: ld returned 1 exit status libtool: link: rm -f ".libs/squidS.o" make[3]: *** [squid] Error 1 make[3]: Leaving directory `/home/Gianluigi/squid-3.2.12/src' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/home/Gianluigi/squid-3.2.12/src' make[1]: *** [all] Error 2 make[1]: Leaving directory `/home/Gianluigi/squid-3.2.12/src' make: *** [all-recursive] Error 1 2013/12/4 vikkymoorthy <vikkymoorthy@xxxxxxxxx>: > Hi Gianluigi, > > I'm new to linux environments and also trying to install squid & some > filtering s/ws. I followed the instructions in > http://wiki.squid-cache.org/SquidFaq/CompilingSquid and found no errors. > > If you don't have a compiler please install developer tools. > > # yum groupinstall 'Development Tools' > > Thanks, > Vignesh K > > > > > ----- > Regards, > Vignesh Krishnamoorthy > -- > View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Compile-Squid-and-make-error-tp4663662p4663664.html > Sent from the Squid - Users mailing list archive at Nabble.com.