ref: 1132d1b9df4c9ea2b857fa9778fe6762cd81ded8
dir: /sys/src/cmd/cc/compat/
int myaccess(char *f) { return access(f, AEXIST); } void* mysbrk(ulong size) { return sbrk(size); } int mycreat(char *n, int p) { return create(n, 1, p); } int mywait(int *s) { int p; Waitmsg *w; if((w = wait()) == nil) return -1; else{ p = w->pid; *s = 0; if(w->msg[0]) *s = 1; free(w); return p; } } int mydup(int f1, int f2) { return dup(f1,f2); } int mypipe(int *fd) { return pipe(fd); } int systemtype(int sys) { return sys & Plan9; } int pathchar(void) { return '/'; } char* mygetwd(char *path, int len) { return getwd(path, len); } int myexec(char *path, char *argv[]) { return exec(path, argv); } int myfork(void) { return fork(); }