GETPGRP_VOID      176 include/ruby/defines.h #ifndef GETPGRP_VOID
GETPGRP_VOID     2929 process.c      #if defined(HAVE_GETPGRP) && defined(GETPGRP_VOID) || defined(HAVE_GETPGID)
GETPGRP_VOID     2934 process.c      #if defined(HAVE_GETPGRP) && defined(GETPGRP_VOID)