Hello, I compiled GCC 4.5.1 on on SUSE linux, but my program which use std::thread cannot run. I checked GCC help pages and configured GCC with --enable-threads. How can I solve this? The detailed information is: linux-roger:/home/lishli/cpp # uname -a Linux linux-roger 2.6.16.60-0.54.5-default #1 Fri Sep 4 01:28:03 UTC 2009 i686 i686 i386 GNU/Linux linux-roger:/home/lishli/cpp # gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/home/lishli/gcc/libexec/gcc/i686-pc-linux-gnu/4.5.1/lto-wrapper Target: i686-pc-linux-gnu Configured with: ./configure --prefix=/home/lishli/gcc --enable-languages=c,c++ --enable-threads --enable-tls Thread model: posix gcc version 4.5.1 (GCC) linux-roger:/home/lishli/cpp # cat 1.cpp #include <thread> void do_nothing(){} int main() { std::thread t(do_nothing); } linux-roger:/home/lishli/cpp # g++ -std=c++0x 1.cpp linux-roger:/home/lishli/cpp # ./a.out terminate called after throwing an instance of 'std::system_error' what(): Aborted