--- EV/Makefile.PL	2009/07/14 00:09:59	1.41
+++ EV/Makefile.PL	2009/08/26 17:31:20	1.44
@@ -1,4 +1,4 @@
-use 5.006;
+use 5.008002;
 
 use strict qw(vars subs);
 use Config;
@@ -226,6 +226,22 @@
 
 print <<EOF;
 
+*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
+
+
+Another sometimes useful bit of functionality is the Linux signalfd, which
+is useful for faster signal handling (don't care). Kernel support for
+this will be probed at runtime, but your libc must contain the necessary
+wrapper. Glibc 2.7 and later should have this wrapper.
+
+EOF
+
+my $can_signalfd = -e "/usr/include/sys/signalfd.h";
+$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
+$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
+
+print <<EOF;
+
 *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***