Shared libraries and .h files

Question

I have some doubt about how do programs use shared library.

When I build a shared library ( with -shared -fPIC switches) I make some functions available from an exte

Answer 1

You need to give the linker the proper instructions to link your shared library.

The shared library names are like libNAME.so, so for linking you should use -lNAME

Call it libmysharedlib.so and then link your main program as:

gcc -o myprogram myprogram.c -lmysharedlib