_sass.c

#include <unistd.h>
#include <stdlib.h>
#include <sys/wait.h>

void dump_usage(struct rusage); // Left as an excercise to reader

int main(int argc, char** argv) {
    pid_t pid;
    struct rusage usage;
    int loc;
    if (pid = fork()) {
        wait4(pid, &loc, 0, &usage);
        dump_usage(usage);
    } else {
        argv[0] = "sass";
        execvp("/path/to/sass", argv);
    }
    exit(0);
}