Fix pointer comparaison opt_servers is a pointer, not a boolean, so testing against false to know if the pointer is NULL no longer works with the more strict gcc 7.x checks. [Taken from http://pkgs.fedoraproject.org/cgit/rpms/libmemcached.git/plain/libmemcached-build.patch.] Signed-off-by: Thomas Petazzoni diff -up ./clients/memflush.cc.old ./clients/memflush.cc --- ./clients/memflush.cc.old 2017-02-12 10:12:59.615209225 +0100 +++ ./clients/memflush.cc 2017-02-12 10:13:39.998382783 +0100 @@ -39,7 +39,7 @@ int main(int argc, char *argv[]) { options_parse(argc, argv); - if (opt_servers == false) + if (!opt_servers) { char *temp; @@ -48,7 +48,7 @@ int main(int argc, char *argv[]) opt_servers= strdup(temp); } - if (opt_servers == false) + if (!opt_servers) { std::cerr << "No Servers provided" << std::endl; exit(EXIT_FAILURE);