gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release) Is that version too old? some error: gcc-C++-action libs/regex/build/bin/libboost_regex.a/gcc/debug/runtime-link-dynamic/cregex. o In file included from /root/boost/boost_1_28_0/boost/regex.hpp:44, from libs/regex/build/../src/cregex.cpp:27: /root/boost/boost_1_28_0/boost/regex_fwd.hpp:53: parse error before `<' /root/boost/boost_1_28_0/boost/regex_fwd.hpp:56: parse error before `>' In file included from /root/boost/boost_1_28_0/boost/regex/detail/regex_stack.hpp:32, from /root/boost/boost_1_28_0/boost/regex.hpp:45, from libs/regex/build/../src/cregex.cpp:27: /root/boost/boost_1_28_0/boost/regex/detail/regex_raw_buffer.hpp:32: confused by earlier errors, bailing out g++ -c -Wall -ftemplate-depth-100 -DBOOST_REGEX_NO_LIB=1 -DBOOST_REGEX_STA TIC_LINK=1 -g -O0 -fno-inline -I"libs/regex/build" -I"/root/boost/boost_1 _28_0" -o "libs/regex/build/bin/libboost_regex.a/gcc/debug/runtime-link-dynamic/cregex .o" "libs/regex/build/../src/cregex.cpp" ...failed gcc-C++-action libs/regex/build/bin/libboost_regex.a/gcc/debug/runtime-link-dynamic/cregex. o...