Hello, I compiled boost on HP/UX 11.11 (PA RISC) with gcc. I got a linker error if I tried to link against the regex library: /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." What I found out was: 1) 'bjam "-sTOOLS=gcc" install' creates libraries with wrong extension (*.so instead of *.sl) /opt/boost/lib/libboost_regex-gcc.a /opt/boost/lib/libboost_regex-gcc.so 2) It seams that the linker chooses the static library if I declare '- boost_regex-gcc', so I get the linker error as described in my prevoíous email! 3) Building boost with 'bjam "-sSUFDLL=.sl" "-sTOOLS=gcc" install' creates /usr/local/lib/libboost_regex-gcc-1_33.a /usr/local/lib/libboost_regex-gcc-1_33.s /usr/local/lib/libboost_regex-gcc.a Shared library /usr/local/lib/libboost_regex-gcc.sl is missing! 4) Now linking with '- boost_regex-gcc-1_33' works (no linker error). Conclusion: 1) The extension for HP/UX libraries should be fixed. 2) The shared library without version in its name is missing. So long, Oliver