paultop6 paultop6 - 29 days ago 6
C++ Question

Using Library files in Linux

Im trying to use some of the functions that are in the /lib/ library in my Ubuntu Distribution.

I have downloaded and installed the header files and they are defined in my source files.

Currently this is all im trying to do, just for starters...

proc_t **read_proc = readproctab(0);

But i get the following compiler error:

/tmp/cclqMImG.o: In function `Sysmon::initialise_sysmon()':
sysmon.cpp:(.text+0x494): undefined reference to `readproctab'
collect2: ld returned 1 exit status

Im aware im probably doing some wrong with the command im using to compile it, but due to lack of experience im not sure what im doign wrong. This is the g++ command im using to compile my cpp file:

g++ -o sysmon.o sysmon.cpp `pkg-config --libs --cflags gtk+-2.0`

Can someone please give me some pointers as to where im going wrong



Answer Source

You are not linking your executable against libproc (that is a linker error message).

Try adding -lproc to the linker command.