help me please

[Ronald Amado Gilio Lucana <rony 88 18 gmail com>]

Hello, I'm beginner programmer in gtkmm, I compile the first example,
"HelloWorld", but I've error, the error it's:

$g++ main.cc -o main  `pkg-config g
tkmm-2.4 --libs --cflags`
/tmp/ccJMFUT2.o: In function `main':
main.cc:(.text+0x38): undefined reference to `HelloWorld::HelloWorld()'
main.cc:(.text+0x55): undefined reference to `HelloWorld::~HelloWorld()'
main.cc:(.text+0x6e): undefined reference to `HelloWorld::~HelloWorld()'
collect2: ld devolvió el estado de salida 1

Please help me, I use Ubuntu SO, and I not speak english, I speak
spanish, sorry for my english bad