LinuxQuestions.org - a problem with libgtop

I do something like this:

Code:

int main(void) 

{ 

        glibtop_cpu myCpu; 

        glibtop_init(); 

        glibtop_get_cpu(&myCpu); 

        printf("total:%d\nuser:%d\nnice:%d\nsys:%d\nidle:%d\nfrequency:%d\n", 

                myCpu.total, myCpu.user, myCpu.nice, myCpu.sys, myCpu.idle,myCpu.frequency); 

        return(0); 

}

and when compile:

g++ -g -I. -I/usr/include myglibtop.cpp -o myglibtop -L. -L/usr/lib -lgtop
-lgtop_sysdeps -lgtop_common
/tmp/ccoRbj6c.o(.text+0x20): In function `main':
/home/jywang/myExam/glibtop/myglibtop.cpp:9: undefined reference to
`glibtop_init_r(_glibtop**, unsigned long, unsigned)'
collect2: ld returned 1 exit status
make: *** [all] Error 1

why?

do you have some examples?

email:jywang@cnic.cn