[Help-gsl] Help me please

[Luz Stella Gomez Fajardo]

Hi.

I try to compile a .cpp file using the gsl_deriv_central library but this shows 
a error in konsole that say:

./a.out: relocation error: ./a.out: undefined symbol: gsl_deriv_central. 

My full comand is 

g++ -Wall -I/usr/local/include -c deriv.cpp
g++ -L /usr/local/lib deriv.o -lgsl -lgslcblas -lm
./a.out

How I can to solve this?

Thanks.

Luz