SOLVED: Need assistance compiling package

[Andrew Robinson <awrobinson-ml@xxxxxxxxx>]

Andrew Robinson wrote:
> I'm trying to build palm-db-tools. The build used to work on FC4, but 
> fails as you see on FC6. Is there a flag or something that would get me 
> around this particular problem?
>
> Thanks!
>
> Andrew Robinson
>
> [root@proteus palm-db-tools]# make
>
> make -C libsupport;  make -C libpalm;  make -C libflatfile;  make -C 
> flatfile;
> make[1]: Entering directory 
> `/data/Downloads/Pilot-DB/palm-db-tools/libsupport'
> g++ -ansi -pedantic -g -O2 -Wall -Werror -Wno-deprecated -I. -I.. 
> -DHAVE_CONFIG_H  -c csvfile.cpp
> cc1plus: warnings being treated as errors
> ../libsupport/infofile.h:33: warning: ‘class DataFile::InfoFile::Parser’ 
> has virtual functions but non-virtual destructor
> ../libsupport/infofile.h:38: warning: ‘class 
> DataFile::InfoFile::ConfigParser’ has virtual functions but non-virtual 
> destructor
> ../libsupport/infofile.h:48: warning: ‘class 
> DataFile::InfoFile::DatabaseParser’ has virtual functions but 
> non-virtual destructor
> ../libsupport/infofile.h:58: warning: ‘class 
> DataFile::InfoFile::TypeParser’ has virtual functions but non-virtual 
> destructor
> ../libsupport/infofile.h:68: warning: ‘class 
> DataFile::InfoFile::PDBPathParser’ has virtual functions but non-virtual 
> destructor
> make[1]: *** [csvfile.o] Error 1

Solution: I needed to add destructor's for the classes. I needed to 
convert this

class Parser
{
public:
    virtual void parse(int linenum, std::vector< std::string> array) = 0;
};

To this:

class Parser
{
public:
    virtual void parse(int linenum, std::vector< std::string> array) = 0;
    virtual ~Parser () {}
};

Now either the version of g++ was more forgiving in FC4 or there was a 
default setting that allowed this error to pass that has since changed. 
Anyway, adding destructors to all the complaining classes allowed the 
application to compile.

Andrew