I recovered my virtual machine to a snapshot where no squid was installed and then tried to install squid 3.4.2 equal to the steps babajaga provided before. But the "make" command throws errors this time, when i use the squid 3.4.2 package: cc1plus: warnings being treated as errors Inquirer.cc: In member function 'virtual void Mgr::Inquirer::start()': Inquirer.cc:90: error: 'auto_ptr' is deprecated (declared at /usr/include/c++/4.3/backward/auto_ptr.h:91) make[3]: *** [Inquirer.lo] Fehler 1 make[3]: Leaving directory `/tmp/squid-3.4.2/src/mgr' make[2]: *** [all-recursive] Fehler 1 make[2]: Leaving directory `/tmp/squid-3.4.2/src' make[1]: *** [all] Fehler 2 make[1]: Leaving directory `/tmp/squid-3.4.2/src' make: *** [all-recursive] Fehler 1 When i look at the error messages i guess the "auto_ptr" package must be updated to run "make" successfully, but how ? -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/How-to-upgrade-a-running-Squid-3-1-12-to-a-newer-version-SLES-11-tp4664449p4664453.html Sent from the Squid - Users mailing list archive at Nabble.com.