How to create a dynamic library in C language and connect it to a C project using the Cygwin / gcc compiler in the command line?

So I did and connected (the code below) with the prefix lib and the extension .so, but tell me how about the extension .dll . Thank.

sum.c

#include "sum.h" int f1(int a, int b) { return a + b; }

sum.h

 int f1(int, int);

main.c

 #include <stdio.h> #include "sum.h" int main(void) { printf("%d", f1(10, 20)); getchar(); return 0; }

creating a dynamic library

gcc -shared sum.c -o libsum.so

compiling a project with a dynamic library

gcc main.c -o abc.exe -L. libsum.so

    1 answer 1

     gcc -shared -o libsum.dll sum.c gcc -L. -o abc.exe main.c -lsum