Debian lenny, getting such error when building the whole game: ==== Building pyrogenesis ==== Linking pyrogenesis /usr/bin/ld: cannot find -lboost_filesystem collect2: ld returned 1 exit status make[1]: *** [../../../binaries/system/pyrogenesis_dbg] Error 1 make: *** [pyrogenesis] Error 2 System libraries are installed. i A libboost-filesystem-dev - filesystem operations in C++ (default vers i A libboost-filesystem1.34.1 - filesystem operations (portable paths, ite i A libboost-filesystem1.38-dev - filesystem operations (portable paths, ite i A libboost-filesystem1.38.0 - filesystem operations (portable paths, ite Or it isn't looking for those?