BC 4.5 linker error on an old program

Comments

• Lundin

  November 2007

  No idea... can you post the code where the compiler error occurs?
  
  It is most likely something related to the C++ standard. BC31 uses a very old and very obsolete version of C++, since several major revisions of the standard has been done since BC31 was made, the main one ANSI/ISO 1998. People developing new C++ programs on compilers made before 1998 are asking for trouble. For Borland folks, this means get rid of everything before BC5.5, because everything before then follows the C++ standard [italic]somewhat[/italic], but there might be issues with STL, obsolete header syntax and such.
  
  My advise is to get a new Borland compiler. 5.83 is available for free as command line compiler, as well as a whole, fully useable freeware RAD tool.
• bilderbikkel

  November 2007

  : Hello, Borlan C++ experts,
  : I am luckily playing an old application based on Borland C++ 3.1. My
  : boss wanted me to make it run on Borland C++ 4.5 or higher version.
  : I fixed the compiling errors, but got this error at link stage:
  : "...
  : Linker Warning: Possible reference to undefined extern Object::ZERO
  : in module mysource.cpp
  : ...
  : Linker Error: Too many error or warning messages.
  : "
  : mysource.cpp ( heaps of similiar source files) was working fine for
  : around 18 years, it has no reference to Object::ZERO stuff, I don't
  : know what Object::ZERO is.
  : Any help?
  : Thanks,
  : Charlie
  :
  Are you sure you've added 'mysource.cpp' to your project by selecting 'Project | Add to project' ?
  bilderbikkel