[prog] C++ loader error

[Sue Stones]

Thanks for pointing it out, that must have been a slip of the fingers or 
something becuase it had previosly said main.o and I think that main.o was 
there from a previous compilation.   (I changed the name from myCompany to 
main when I discovered that I could just call it main).

Ganesh's solution of calling the compiler rather than the loader sirectly 
worked.  So now I have a different set of error messages to deal with !!!

sue


On Fri, 30 May 2003 16:29, Laurel Fan wrote:
> No idea if this has anything to do with your problem, but I notice
> that your makefile uses main.o to build firm, but does not have a rule
> to build main.o.  Most likely, a default rule is being used to build
> main.o, and it might be doing what you want anyway.  Also, it doesn't
> look like your myCompany.o rule will ever be used.
>
> By the way, you can use pattern rules to simplify your makefile.  For
> example:
>
> %.o: %.C
> 	g++ -c $<
>
> Which means that whenever you have a dependency on a whetever.o file,
> it will generate a rule for you that looks like:
>
> whatever.o: whatever.C
> 	g++ -c whatever.C
>
> So it essentially tells make to make any .o file from the matching .C
> file.
>
> For more details, the relevant chapter in the GNU make manual is:
>
> http://www.gnu.org/manual/make/html_chapter/make_10.html#SEC108
>
> On Fri, May 30, 2003 at 03:07:28PM +1000, Sue Stones wrote:
> > I have written a class heirarcy, and have dealt with complile time
> > errors. But now I am getting a loader error.  I don't know where to look
> > to lllok for errors.   All files are in the current directory (which is
> > in $PATH).
> >
> > Any sugestions?   Below are the error message, the makefile, and  main.C
> > as I assume that these are the most likely places for the error to occur.
> >
> > thanks sue
> >
> >
> > _________the beginning of the error messages ________
> > $ make
> > g++    -c -o main.o main.C
> > ld -o firm main.o Firm.o Employee.o Manager.o \
> >      Clerk.o Salesperson.o SalesRecord.o
> > ld: warning: cannot find entry symbol _start; defaulting to 08048080
> > main.o: In function `main':
> > main.o(.text+0x9f): undefined reference to `__rethrow'
> >
> >
> > _______the makefile_________
> > main: main.o Firm.o Employee.o Manager.o \
> >              Clerk.o Salesperson.o SalesRecord.o
> >         ld -o firm main.o Firm.o Employee.o Manager.o \
> >              Clerk.o Salesperson.o SalesRecord.o
> >
> > myCompany.o: main.C
> >         g++ -c main.C
> >
> > Firm.o: Firm.C
> >         g++ -c Firm.C
> >
> > Employee.o: Employee.C
> >         g++ -c Employee.C
> >
> > Manager.o: Manager.C
> >         g++ -c Manager.C
> >
> > Clerk.o: Clerk.C
> >         g++ -c Clerk.C
> >
> > Salesperson.o: Salesperson.C
> >         g++ -c Salesperson.C
> >
> > SalesRecord.o: SalesRecord.C
> >         g++ -c SalesRecord.C
> >
> > __________main.C_______
> >
> > /************************************************
> >  *
> >  *      main is a client to test the Firm
> >  *      class.
> >  *
> >  ***********************************************/
> >
> > #include "Firm.h"
> > #include "Employee.h"
> > #include "Manager.h"
> >
> > int main(void)
> > {
> >         Firm andCo = Firm();
> >         Manager smith = Manager("Smith",1, 350000);
> >
> >         andCo.add((smith));
> >         return 0;
> > }//main
> > ~
> > ~
> > _______________________________________________
> > Programming mailing list
> > Programming at linuxchix.org
> > http://mailman.linuxchix.org/mailman/listinfo/programming