From: "John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: STRING problems!
Date: Tue, 28 Apr 1998 18:21:05 -0400
Organization: Two pounds of chaos and a pinch of salt.
Lines: 53
Message-ID: <35465651.953@cs.com>
References: <35462A31 DOT 4E83C790 AT acpub DOT duke DOT edu> <3546360D DOT 7114 AT cs DOT com> <35464CC1 DOT 4E00589F AT acpub DOT duke DOT edu>
NNTP-Posting-Host: ppp144.cs.net
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Precedence: bulk

Robert Vila wrote:
> 
> I think I may have identified the problem. I don't think any C++ programs
> compile. I tried to compile something with the vector class and that gave me
> the same kind o ferrors. Any ideas? I noticed that I do not have gxx. I have
> gpp, and i'm not sure what the difference is. I know i downloaded everything
> and unzipped correctly, or so i thought. any other ideas?

You are actually getting undefined references, so your problem is not
with the included headers.  If the compiler had been unable to find
them, you'd have gotten a different error (could not find 'iostream.h',
etc.).

BTW, the instructions in readme.1st haven't been updated for gcc 2.8.0;
gxx was deleted from the new version and replaced with 'g++' for folks
with LFNs and 'gpp' for those without.  They both work the same as
'gxx'.

> > 4) If you get undefined references, are you linking the C++ libraries
> > when you compile (RHIDE should do this automatically)?
> 
> I compiled with RHIDE, and that didn't happen

I'm not quite sure what you mean here.  Do C++ programs compile in
RHIDE, or do you get different errors depending on whether you use DOS
or RHIDE?

RHIDE sometimes has problems with a LFN installation of gcc 2.8.0; this
results in it being unable to locate streambuf.h.  If this is your
problem, edit the file %DJDIR%/share/rhide/rhide.env (or create it if it
does not exist) and add the line:

RHIDE_TYPED_LIBS_DJGPP.cc=stdcxx

Save, and RHIDE should compile C++ properly.

If your problem is in DOS, use 'gpp' instead of 'gcc' to compile.  This
causes the correct libraries for C++ programs to be linked
automatically.  If you want to do it manually, add "-lstdcxx" to the end
of your command line.

One last thing; make sure that you are naming your source files
correctly in RHIDE.  .cc, .cpp, and .cxx are all valid C++ extensions.

hth!

-- 
---------------------------------------------------------------------
|      John M. Aldrich       |"Men rarely (if ever) manage to dream |
|       aka Fighteer I       |up a god superior to themselves. Most |
|   mailto:fighteer AT cs DOT com   |gods have the manners and morals of a |
| http://www.cs.com/fighteer |spoiled child."    - Lazarus Long     |
---------------------------------------------------------------------