Hi, I get on HP/UX 11.11 following linker warning during boost build process: /usr/ccs/bin/ld: (Warning) Can't hide symbol "libboost_thread-gcc34-mt-1_34.sl.1.34.0" After command: "g++" -o "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/libboost_thr ead-gcc34-mt-1_34.sl.1.34.0" -Wl,-h -Wl,libboost_thread-gcc34-mt-1_34.sl.1.34.0 -shared "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/barrier.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/condition.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/exceptions.o " "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/mutex.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/once.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/recursive_mu tex.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/thread.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/tss_hooks.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/tss_dll.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/tss_pe.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/tss.o" "bin.v2/libs/thread/build/gcc-3.4.4/release/threading-multi/xtime.o" -lrt -Wl,-s -shared -Wl,-b -fPIC -pthread -D_REENTRANT Could somebody explain it? Can I ignore it? regards, Oliver