Hello, I try to use boost-1.33.1 on HP/UX ('bjam -prefix=/opt/boost "-sTOOLS=gcc" install') with gcc. For me it seams that the libraries are NOT tested on HP/UX! Uname -a: HP-UX drssx248 B.11.11 U 9000/800 888950691 unlimited-user license Gcc -v: Reading specs from /opt/hp-gcc/3.4.4/ilp32/lib/gcc/hppa1.1-hp-hpux11.11/3.4.4/specs Configured with: /proj/oscp/nightly/gcc/gcc_3_4_4_release/gcc/configure --enable-languages=c,c++ --enable-threads=posix --with-ld=/usr/ccs/bin/ld --without-gnu-ld --build=hppa1.1-hp-hpux11.11 --host=hppa1.1-hp-hpux11.11 --target=hppa1.1-hp-hpux11.11 --prefix=/opt/hp-gcc/3.4.4/ilp32 --with-as=/proj/oscp/nightly/gcc/gcc_3_4_4_release/HP-UX/hppa//opt/hp-gc c/3.4.4/ilp32/bin/as Thread model: posix gcc version 3.4.4 1.) In order to be platform-comnpliant the libraries should have the extension. 2.) I get linker errors like (please see my email [boost] linker problem ob HP/UX - wrong extension) /usr/ccs/bin/ld: Invalid loader fixup in text space needed in output file for symbol "__gxx_personality_sj0" in input file "/opt/boost/lib/libboost_regex-gcc." 3.) I get runtime segmentation faults if the system tries to load boost libraries (please see my email [boost] bug in signals library? - segmentation fault(onlylinked) -> exit(11) called) Those problems should be fixed if I try boost to compile with: bjam --prefix=/opt/boost "-sTOOLS=gcc" "-sSUFDLL=.sl" "-sBUILD=debug release <runtime-link>dynamik <threading>multi <cxxflags>-D_REENTRANT <cxxflags>-fpic <release><optimization>speed" install But I get only libboost__<xxx>-gcc-mt-1_33_1.a and libboost_<xxx>-gcc-mt-d-1_33_1.a libraries. No libboost__<xxx>-gcc-mt-1_33_1.sl libboost__<xxx>-gcc-mt-d-1_33_1.sl? Oliver