<[EMAIL PROTECTED]> writes: > I upgraded my machine to potato but in compiling a c++ > program which before used to work with > > g++ -lg++ filename.cc, > > now I need > > g++ -I/usr/include/g++-2/ -lg++ filename.cc
-lg++ links libg++, which are auxiliary, non-standard convenience-classes that are no longer maintained. What you want is libstdc++, and you don't need to specify this explicitly when linking with g++ (as opposed to ld). > two questions: > > 1) WHy do I need the -I now and -I/usr/include/g++-2/ might simply include the libstdc++-headers ? but these should really be included by default. (are you using gcc 2.95.2 ?) for example, on my system using libstdc++-v3 (the latest version under development): [EMAIL PROTECTED]:~ > ls <prefix>/include/g++-v3/ algorithm cfloat cstddef ext istream ostream strstream atomicity.h ciso646 cstdio fstream iterator queue typeinfo backward climits cstdlib fstream.h limits set utility bits clocale cstring functional list shadow valarray bitset cmath ctime iomanip locale sstream vector bu complex cwchar ios map stack cassert csetjmp cwctype iosfwd memory stdexcept cctype csignal deque iostream new streambuf cerrno cstdarg exception iostream.h numeric string (the ones for gcc 2.95.2 will look a little differently) > 2) The second command doesnt work. It complains > > /usr/bin/ld: cannot find -lg++ > collect2: ld returned 1 exit status > > though all the libraraies are in /usr/lib. Any ideas? -- Felix Natter
