* Oleg Smolsky via Gcc-help: > Clearly the new build is not quite the same as the old one... but > which one is correct for Linux/x86-64? And what controls this > variance? It looks like glibc does not have a flag to control TLS any > more... You need to figure out why _GLIBCXX_HAVE_TLS was not detected at configure time. See config/tls.m4. There is likely something in config.log. Thanks, Florian