message queue makefile error: undefined reference to `mq_open'

Question

Even though I have linked -lrt in my Makefile, as you can see below, I am still getting undefined reference to 'mq_open'. Please help!

all:get1 iserv1
get: get1.c
    gcc -Wall -o get1 get1.c -lrt
iserv: iserv1.c
    gcc -Wall -o iserv1 iserv1.c -lrt
clean:
    rm -fr *~ get1 iserv1

Answer 1

Note -lrt should be at end not inbetween.