I am trying to compile boost 1.30.02 library with aCC 03.55 on HP-UX 11i, but I am getting following errors. Can anybody pls tell me what is causing these errors. aCC -AA -c +W823 -I/data/projects/sable/appl/ggehlot/boost-1.30.2 -DNDEBUG -DBOOST_DATE_TIME_POSIX_TIME_STD_CONFIG -O3 +Z -I" libs/date_time/build" -I"/data/projects/sable/appl/ggehlot/boost-1.30.2" -o "libs/date_time/build/bin/libboost_date_time.so/acc/release /runtime-link-dynamic/shared-linkable-true/greg_month.o" "libs/date_time/build/../src/gregorian/greg_month.cpp" ...failed aCC-C++-action libs/date_time/build/bin/libboost_date_time.so/acc/release/runtime-link-dynamic/shared-linkable-true/greg_month. o... ...skipped <libs!date_time!build/libboost_date_time.so/acc/release/runtime-link-dynamic/shared-linkable-true>libboost_date_time.so for la ck of <libs!date_time!build/libboost_date_time.so/acc/release/runtime-link-dynamic/shared-linkable-true>greg_month.o... ...skipped <libs!regex!build/libboost_regex.so/acc/debug/runtime-link-dynamic/shared-linkable-true>libboost_regex.so for lack of <libs!re gex!build/libboost_regex.so/acc/debug/runtime-link-dynamic/shared-linkable-true>cregex.o... aCC-Link-action libs/signals/build/bin/libboost_signals.so/acc/debug/runtime-link-dynamic/shared-linkable-true/libboost_signals.so /usr/ccs/bin/ld: Unsatisfied symbols: main (Not referenced yet! Probably due to -u option) aCC -g -AA -o "libs/signals/build/bin/libboost_signals.so/acc/debug/runtime-link-dynamic/shared-linkable-true/libboost_signals.so" "libs/signals/build/bin/libboost_signals.so/acc/debug/runtime-link-dynamic/shared-linkable-true/trackable.o" "libs/signals/build/bin/ libboost_signals.so/acc/debug/runtime-link-dynamic/shared-linkable-true/connection.o" "libs/signals/build/bin/libboost_signals.so/acc/deb ug/runtime-link-dynamic/shared-linkable-true/signal_base.o" "libs/signals/build/bin/libboost_signals.so/acc/debug/runtime-link-dynamic/sh ared-linkable-true/slot.o" ...failed aCC-Link-action libs/signals/build/bin/libboost_signals.so/acc/debug/runtime-link-dynamic/shared-linkable-true/libboost_signals .so... ...removing libs/signals/build/bin/libboost_signals.so/acc/debug/runtime-link-dynamic/shared-linkable-true/libboost_signals.so aCC-Link-action libs/signals/build/bin/libboost_signals.so/acc/release/runtime-link-dynamic/shared-linkable-true/libboost_signals.so /usr/ccs/bin/ld: Unsatisfied symbols: main (Not referenced yet! Probably due to -u option) aCC -s -AA -o "libs/signals/build/bin/libboost_signals.so/acc/release/runtime-link-dynamic/shared-linkable-true/libboost_signals.s o" "libs/signals/build/bin/libboost_signals.so/acc/release/runtime-link-dynamic/shared-linkable-true/trackable.o" "libs/signals/build/ bin/libboost_signals.so/acc/release/runtime-link-dynamic/shared-linkable-true/connection.o" "libs/signals/build/bin/libboost_signals.so/a cc/release/runtime-link-dynamic/shared-linkable-true/signal_base.o" "libs/signals/build/bin/libboost_signals.so/acc/release/runtime-link- dynamic/shared-linkable-true/slot.o" ...failed aCC-Link-action libs/signals/build/bin/libboost_signals.so/acc/release/runtime-link-dynamic/shared-linkable-true/libboost_signa ls.so... ...removing libs/signals/build/bin/libboost_signals.so/acc/release/runtime-link-dynamic/shared-linkable-true/libboost_signals.so aCC-Link-action libs/test/build/bin/libboost_prg_exec_monitor.so/acc/debug/runtime-link-static/shared-linkable-true/threading-single/libb oost_prg_exec_monitor.so /usr/ccs/bin/ld: Can't find library: "libstd_v2.a" aCC -llibstd_v2.a -g -AA -o "libs/test/build/bin/libboost_prg_exec_monitor.so/acc/debug/runtime-link-static/shared-linkable-true/t hreading-single/libboost_prg_exec_monitor.so" "libs/test/build/bin/libboost_prg_exec_monitor.so/acc/debug/runtime-link-static/shared-l inkable-true/threading-single/execution_monitor.o" "libs/test/build/bin/libboost_prg_exec_monitor.so/acc/debug/runtime-link-static/shared -linkable-true/threading-single/cpp_main.o" ...failed aCC-Link-action libs/test/build/bin/libboost_prg_exec_monitor.so/acc/debug/runtime-link-static/shared-linkable-true/threading-s ingle/libboost_prg_exec_monitor.so... aCC-Link-action libs/test/build/bin/libboost_prg_exec_monitor.so/acc/debug/runtime-link-static/shared-linkable-true/threading-multi/libbo ost_prg_exec_monitor.so /usr/ccs/bin/ld: Can't find library: "libstd_v2.a" ----------------------------------------- This message and its attachments may contain privileged and confidential information. If you are not the intended recipient(s), you are prohibited from printing, forwarding, saving or copying this email. If you have received this e-mail in error, please immediately notify the sender and delete this e-mail and its attachments from your computer.