POSIX_SIGNAL     3920 gc.c           #if !(defined(POSIX_SIGNAL) && defined(SIGSEGV) && defined(HAVE_SIGALTSTACK))
POSIX_SIGNAL     3943 gc.c           #if defined(POSIX_SIGNAL) && defined(SIGSEGV) && defined(HAVE_SIGALTSTACK)
POSIX_SIGNAL      689 include/ruby/intern.h #ifdef POSIX_SIGNAL
POSIX_SIGNAL     3500 process.c      #ifdef POSIX_SIGNAL
POSIX_SIGNAL     3519 process.c      #ifndef POSIX_SIGNAL
POSIX_SIGNAL     3525 process.c      #ifdef POSIX_SIGNAL
POSIX_SIGNAL     3549 process.c      #ifdef POSIX_SIGNAL
POSIX_SIGNAL      585 signal.c       #ifdef POSIX_SIGNAL
POSIX_SIGNAL      672 signal.c       #ifdef POSIX_SIGNAL
POSIX_SIGNAL      700 signal.c       #if !defined(BSD_SIGNAL) && !defined(POSIX_SIGNAL)
POSIX_SIGNAL     2125 thread.c       #if defined(POSIX_SIGNAL) && defined(SIGSEGV) && defined(HAVE_SIGALTSTACK)