Re: [Boost-users] can't get first example in boost tutorial to work

From: 7stud (bbxx789_05ss_at_[hidden])
Date: 2008-04-20 21:21:03

Jens Seidel <jensseidel <at> users.sf.net> writes:
> 
> Please use the C++ compiler "g++" instead of the C compiler "gcc".
> 

Whoops.  Somewhere between my first post and my second post I began
using the gcc command instead of the g++ command.  The program
compiles fine when I use the command:

g++-I /usr/local/boost_1_34_1 prog1.cpp

> > /usr/bin/ld: Undefined symbols:
> 
> Ah, OK, now the compiler error vanished as the compiler is able to
> find the header files of boost.
> 
> [The following can probably be ignored as I missed at the beginning
> the you used the C compiler. Nevertheless you may find the next
> usful in you later steps:]
> 
> Now the linker complains about symbols (such as functions) defined in a
> Boost library which you have to link against.
> 
> You need for linking the additional options
> -L /usr/local/boost_1_34_1/lib/ (to specify the library search path)
> -l boost??? (to specify the library)
> 
> Sorry, I do not remember the library name which contains lambda. Just
> look into your /usr/local/boost_1_34_1/ for available
> dynamic lib/libboost*.so or lib/libboost*.a static libraries and choose
> the right one (without lib prefix or .so or a suffix).
> 
> Please note that this kind of question indicate that you are not very
> familiar with a C++ compiler. 
>

You are right.  I am not familiar with the gcc compilers.  I've used
MS VC++6 for about 10 years to write and compile C++ programs, 
but I recently switched from windows to a mac.  Mac's have an 
IDE called Xcode for writing and compiling C++ programs, 
and that's what I've been using recently.

>That's not a problem but please try to find
> such answers yourself by following more basic C++/g++ tutorials.
> 
> Starting with a simple "Hello world" program is typically the first
> step.
> 

I can compile a 'hello' world problem using the command line, but
that's about it.