------- Additional Comments From qrczak at knm dot org dot pl 2005-02-23 01:53 ------- > The '-pthreads' flag should imply '-fno-threadsafe-statics'. For every other > similar flag I can find, the default is to permit the compiler to make the > optimizations that standard allows and specific flags are needed to disable > the > optimization.
It's not the question of optimization but correctness. Having an "initialize on first use" semantics which breaks when multiple threads use it is as wrong as using global variables for passing data between functions and forcing clients to introduce locks to make them reentrant. It is usable when clients are careful, but it's a bad default when we can't expect all calls to be done from a single thread. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20099
