Date: Wed, 23 Jun 1999 15:44:54 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender: eliz AT is
To: Mark Collinson <mark DOT collinson AT unn DOT ac DOT uk>
cc: djgpp AT delorie DOT com
Subject: Re: _String.h
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On Wed, 23 Jun 1999, Mark Collinson wrote:

> I am having a spot of trouble with the _String.h file. The C++ compiler
> cannot find it.

That's not what the error message says.

> C:\mark\code>gxx -Wall -o strtest.exe strtest.cpp
> c:/djgpp/tmp\cccygxwf(.text+0x1b):strtest.cpp: undefined reference to
> `String::String(void)'

See?  It doesn't say anything about _String.h, it complains about missing 
functions.  And that means that you didn't tell the linker to search some 
of the libraries, or that you don't have those libraries installed.

I believe that String is in libgpp.a, so try appending -lgpp to the end 
of the compilation command.  If that doesn't work, you will need to 
install the file lgp2811b.zip.