Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/src/9/port/print.c
#include "u.h" #include "../port/lib.h" #include "mem.h" #include "dat.h" #include "fns.h" static Lock fmtl; void _fmtlock(void) { lock(&fmtl); } void _fmtunlock(void) { unlock(&fmtl); } int _efgfmt(Fmt*) { return -1; }