Re: [Boost-users] Boost Graph Reading and Writing ATT graphviz example compile error

From: Douglas Gregor (dgregor_at_[hidden])
Date: 2005-01-11 20:44:17

On Jan 11, 2005, at 5:28 PM, Welson Sun wrote:

> Doug Gregor wrote:
>
>>
>> On Jan 11, 2005, at 1:38 PM, Welson Sun wrote:
>>
>>> Hi,
>>>  My platform is Linux (Fedora Core 2), gcc version: gcc (GCC) 3.3.3 
>>> 20040412 (Red Hat Linux 3.3.3-7)
>>>  I need to read and write the ATT graphviz format, so this is what I 
>>> did:
>>>  1. Generated the libbgl-viz library.
>>>     In boost_1_32_0/libs/graph/src/ directory, use the default 
>>> Makefile, generated the libbgl-viz library without error. And I 
>>> copied them to /usr/local/lib
>>>  2. g++ boost_1_32_0/libs/graph/example/graphviz.cpp, but I got the 
>>> nasty error:
>>>                                             
>>> ccVhyZaG.o(.text+0x602):graphviz.cpp:
>>> undefined reference to `boost::read_graphviz(std::basic_string<char, 
>>> std::char_t
>>>
>>> [snip error]
>>> collect2: ld returned 1 exit status
>>>   What's the matter?
>>
>>
>> Add -lbgl-viz to the end of your "g++" command line to link in the 
>> GraphViz reader code.
>>
>>     Doug
>>
>> _______________________________________________
>> Boost-users mailing list
>> Boost-users_at_[hidden]
>> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>>
> OK, I think the library is all right, because I just copied the code 
> from boost_1_32_0/libs/graph/doc/write-graphviz.html to a C++ file, 
> and it compiled and ran pretty well. So I think the problem is that 
> the example code : boost_1_32_0/libs/graph/example/graphviz.cpp is 
> wrong in the way it calls read_graphviz().
>
> By the way, I just set LD_LIBRARY_PATH to /usr/local/lib, and when 
> compiling, I didn't add any compile options.

Are you compiling with:

   g++ boost_1_32_0/libs/graph/example/graphviz.cpp -lbgl-viz

?

        Doug