--- a/acinclude.m4	Tue Feb 02 02:58:46 2010 -0500
+++ b/acinclude.m4	Tue Feb 02 04:39:29 2010 -0500
@@ -173,109 +173,6 @@
   AC_DEFINE(SMART_PUTENV,1,[To quiet autoheader.])
 fi])
 dnl
-dnl These two checks for signal functions were originally part of the
-dnl aclocal.m4 file distributed with bash 2.0.
-dnl
-dnl Check type of signal routines (posix, 4.2bsd, 4.1bsd or v7)
-AC_DEFUN([OCTAVE_SIGNAL_CHECK],
-[AC_REQUIRE([AC_TYPE_SIGNAL])
-AC_MSG_CHECKING([for type of signal functions])
-AC_CACHE_VAL(octave_cv_signal_vintage,
-[
-  AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
-    [[sigset_t ss;
-      struct sigaction sa;
-      sigemptyset (&ss);
-      sigsuspend (&ss);
-      sigaction (SIGINT, &sa, (struct sigaction *) 0);
-      sigprocmask (SIG_BLOCK, &ss, (sigset_t *) 0);]])],
-    [octave_cv_signal_vintage=posix],
-    [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]],
-       [[int mask = sigmask (SIGINT);
-	 sigsetmask (mask);
-         sigblock (mask);
-         sigpause (mask);]])],
-       [octave_cv_signal_vintage=4.2bsd],
-       [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>
-          RETSIGTYPE foo() { }]],
-          [[int mask = sigmask (SIGINT);
-	    sigset (SIGINT, foo);
-            sigrelse (SIGINT);
-	    sighold (SIGINT);
-            sigpause (SIGINT);]])],
-          [octave_cv_signal_vintage=svr3],
-          [octave_cv_signal_vintage=v7])])])])
-AC_MSG_RESULT([$octave_cv_signal_vintage])
-if test "$octave_cv_signal_vintage" = posix; then
-AC_DEFINE(HAVE_POSIX_SIGNALS, 1, [Define if you have POSIX style signals.])
-elif test "$octave_cv_signal_vintage" = "4.2bsd"; then
-AC_DEFINE(HAVE_BSD_SIGNALS, 1, [Define if you have BSD style signals.])
-elif test "$octave_cv_signal_vintage" = svr3; then
-AC_DEFINE(HAVE_USG_SIGHOLD, 1, [Define if you have System V Release 3 signals.])
-fi
-])
-dnl
-AC_DEFUN([OCTAVE_REINSTALL_SIGHANDLERS],
-[AC_REQUIRE([AC_TYPE_SIGNAL])
-AC_REQUIRE([OCTAVE_SIGNAL_CHECK])
-AC_MSG_CHECKING([if signal handlers must be reinstalled when invoked])
-AC_CACHE_VAL(octave_cv_must_reinstall_sighandlers,
-[AC_RUN_IFELSE([AC_LANG_SOURCE([[
-#include <signal.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-typedef RETSIGTYPE sigfunc();
-int nsigint;
-#ifdef HAVE_POSIX_SIGNALS
-sigfunc *
-set_signal_handler(sig, handler)
-     int sig;
-     sigfunc *handler;
-{
-  struct sigaction act, oact;
-  act.sa_handler = handler;
-  act.sa_flags = 0;
-  sigemptyset (&act.sa_mask);
-  sigemptyset (&oact.sa_mask);
-  sigaction (sig, &act, &oact);
-  return (oact.sa_handler);
-}
-#else
-#define set_signal_handler(s, h) signal(s, h)
-#endif
-RETSIGTYPE
-sigint(s)
-    int s;
-{
-  nsigint++;
-}
-main()
-{
-  nsigint = 0;
-  set_signal_handler(SIGINT, sigint);
-  kill((int)getpid(), SIGINT);
-  kill((int)getpid(), SIGINT);
-  exit(nsigint != 2);
-}
-]])],
-  octave_cv_must_reinstall_sighandlers=no,
-  octave_cv_must_reinstall_sighandlers=yes,
-if test "$octave_cv_signal_vintage" = svr3; then
-  octave_cv_must_reinstall_sighandlers=yes
-else
-  octave_cv_must_reinstall_sighandlers=no
-fi)])
-if test "$cross_compiling" = yes; then
-  AC_MSG_RESULT([$octave_cv_must_reinstall_sighandlers assumed for cross compilation])
-else
-  AC_MSG_RESULT([$octave_cv_must_reinstall_sighandlers])
-fi
-if test "$octave_cv_must_reinstall_sighandlers" = yes; then
-  AC_DEFINE(MUST_REINSTALL_SIGHANDLERS,1,[Define if signal handlers must be reinstalled after they are called.])
-fi
-])
-dnl
 dnl Check to see if C++ compiler needs the new friend template declaration 
 dnl syntax. 
 dnl