On 9 July 2013 13:39, Henrik Mannerström wrote: > On 07/09/2013 03:30 PM, Florian Weimer wrote: >> >> Do you link statically, by chance? What does "ldd ./main" show? >> > linux-vdso.so.1 => (0x00007fffdbec0000) > libgsl.so.0 => /usr/lib64/libgsl.so.0 (0x000000347b200000) > libcblas.so.3 => /usr/lib64/atlas/libcblas.so.3 (0x0000003477c00000) > libatlas.so.3 => /usr/lib64/atlas/libatlas.so.3 (0x0000003477000000) > libc.so.6 => /lib64/libc.so.6 (0x0000003463e00000) > libm.so.6 => /lib64/libm.so.6 (0x0000003464200000) > libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003464a00000) > /lib64/ld-linux-x86-64.so.2 (0x0000003463a00000) It looks as though you've linked statically to libstdc++.a