#include /* https://www.cprogramming.com/tutorial/shared-libraries-linux-gcc.html gcc -Wall -c -fpic pxc.c gcc -Wall -shared pxc.o -o pxc.so gcc -Wall pxct.c -L. -lpxc -Wl,-rpath=. */ int convert(int px[], int *out[]); int main() { convert(NULL, NULL); return 0; }