unable to link this library to my vs code

[shreya-spr]

Have downloaded this library and copied it in the mingw64/include path. But vsc does not seem to recognize the
#include<pdfgen.h> in my c file project . Could you help me with this? And I have Windows OS

[AndreRenaud]

Do you have the error message that it produces? If you've put pdfgen.c & pdfgen.h in the same folder as the code where you're trying to use it, you should probably use quotes for the #include, not <
ie: #include "pdfgen.h" instead of #include <pdfgen.h>

[shreya-spr]

Yes, pdfgen.c and pdfgen.h are in the same folder as my project. I used #include "pdfgen.h" I compiled it: gcc <filename.c>
And the error message I get is this

[AndreRenaud]

It looks like you're not linking pdfgen.c with your other C files (billing.c by the looks of it). That output doesn't show the actual command line that you used, but I'm assuming it's something like gcc billing.c. That isn't enough - you either need to compile each .c file into it's own .o file separately, ie: gcc -o billing.o billing.c, gcc -o pdfgen.o pdfgen.c and then link them using gcc -o myprogram billing.o pdfgen.o, or you need to compile/link them all in one step, ie: gcc -o myprogram billing.c pdfgen.c. Are you using a Makefile or some other build tool?