[GiNaC-list] linking error with ginac example program derivative.cpp

[Robert Durkacz]

Thankyou. I will try your command line and report if that helps.
-Robert

On Fri, Jul 13, 2012 at 5:21 AM, Jens Vollinga
<jens.vollinga at googlemail.com> wrote:
> Hi Robert,
>
> sorry, I can not reproduce your problem. I have no problems compiling that
> example, but I have to say I use g++ 4.7 on a Linux box.
>
> I used your commands (without the -DIN_GINAC), and I used the following:
>
> g++ `pkg-config ginac --libs --cflags` derivative.cpp -o derivative
>
> which is a bit more concise. Maybe you can try that line as well, maybe
> something is wrong with the paths of your installation.
>
> Regards,
> Jens
>
>
>
> On 11.07.2012 14:54, Robert Durkacz wrote:
>>
>> I am just starting with ginac but unable to build the derivative.cpp
>> program from doc/examples/ in ginac-1.6.2 Others of the examples
>> that I tried were built successfully, eg compile1.cpp and compile3.exe
>>
>> I am using these versions of ginac and cln:
>>      cln-1.3.2
>>      ginac-1.6.2
>> These libraries were built without problems as per INSTALL instructions.
>>
>> compiler (gcc --version):
>>      gcc (GCC) 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)
>>
>> platform (uname -a):
>>      CYGWIN_NT-5.1 dell 1.7.15(0.260/5/3) 2012-05-09 10:25 i686 Cygwin
>>
>> command line of compile and link steps:
>>      g++ -c -Wall -g -I.. -I../ginac -DIN_GINAC  -o gcc/derivative.o
>> derivative.cpp
>>      g++ -o derivative gcc/derivative.o ../ginac/.libs/libginac.a
>> /usr/local/lib/libcln.a -ldl
>>      ../ginac/.libs/libginac.a(parser.o): In function
>> `_ZNSt16invalid_argumentD1Ev':
>>      /home/Owner/technical/ginac-1.6.2/ginac/parser/parser.h:46:
>> multiple definition of `GiNaC::container<std::list>::info(unsigned
>> int) const'
>>
>> ../ginac/.libs/libginac.a(lst.o):/usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/list.tcc:(.text+0x0):
>> first defined here
>>      collect2: ld returned 1 exit status
>> It is beyond my current abilities to sort out this problem. Could
>> someone tell me what is going wrong?
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>
>
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