[Mapserver-users] MDK9 (gcc3): undefined reference to `__gxx_personality_v0'

[Norman]

richard hornsby writes:
>
> ref gcc version 3.2 (Mandrake Linux 9.0 3.2-1mdk)
> ref mapserver 3.6.3
> 
> Checking the mailing list archives and realizing that this seems to be a
> common problem with GCC 3 not understanding what 'personality_v0' is or
> whatever, and seeing all the stuff about changing the makefile to point to
> g++ in the problem areas, what I can't figure out is:
> 
>  - what lines (by number if possible) in the Makefile need to be changed,
> so that those who are trying aren't changing the wrong lines?
> 
>  - does it actually do anything to change lines in the Makefile to point
> to g++ in linux?  ie, I get the same version response whether I ask 'gcc
> -v' or 'g++ -v'?

this keeps coming up so I hope the following can be used as
the basis for a FAQ entry  or even better for changes to be 
made in the mapserver Makefile 
  < please clean up as necessary >

g++ and c++ are just driver programs that call the actual compiler
g++ automatically links with -lstdc++ whereas gcc does not

so since the some of the libraries mapserver link with are C++
libraries you need to link with libstdc++ to link successfuly 

You can accomplish this  by either 

1) changing the Makefile so that g++ is called for the linking stage
    of the mapserver executables

2) adding -lstdc++ to the list of libraries thesse executables are
    linked against
 
>  - is it possible to install and use gcc 2.9.x concurrently with gcc 3.x,
> and therefore compile mapserver with the gcc 2.9.x, all *without*
> breaking the existing installation of gcc 3.x?  if so, could someone point
> out where the documentation on howto do this is?

http://gcc.gnu.org/fom_serv/cache/14.html

HTH

Norman