[ViewVC] Diff of: cvs/EV/Makefile.PL

Comparing EV/Makefile.PL (file contents):
Revision 1.65 by root, Fri Nov 22 14:43:49 2019 UTC vs.
Revision 1.67 by root, Fri Dec 20 21:05:49 2019 UTC

 print <<EOF;
 *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
+Linux kernels can notify userspace about realtime clock timejumps
+using timerfd. Libev by default will try to take advantage of this if
+possible. You can completely disable the detection and use of timerfd for
+this purpose by answering 'n' here. Support for timerfd will otherwise be
+autodetected at both compile- and runtime.
+EOF
+unless (prompt ("Enable optional support for timerfd to detect timejumps (y/n)?", "y") =~ /[yY]/) {
+   $DEFINE .= " -DEV_USE_TIMERFD=0";
+}
+print <<EOF;
+*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
 Libev contains numerous internal assert() invocations to check for
 consistency and user errors. These are normally enabled, but most
 perl builds disable this error reporting mechanism by default. You
 can re-enable these asserts here. Enabling them might help you catch
 programming bugs earlier, but might cause a small slowdown. Also, failures
 For example, if you run into compilation problems because of missing memory
 fences (or you just want extra performance), you can tell EV to not support
 smp and threads via -DEV_NO_THREADS.
-Normal persons just press enter.
+Most people would just press enter.
 EOF
 $DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";

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