--- EV/Makefile.PL	2007/11/01 06:48:49	1.10
+++ EV/Makefile.PL	2007/11/01 09:05:32	1.11
@@ -17,6 +17,94 @@
    exit 1;
 }
 
+print <<EOF;
+
+
+*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
+
+Welcome to EV configuration. If you are in a hurry, just press return here
+and hope for the best. The defaults should usually do.
+
+EOF
+
+if (prompt ("Skip further questions and use defaults (y/n)?", "y") =~ /[yY]/) {
+   $ENV{PERL_MM_USE_DEFAULT} = 1;
+}
+
+print <<EOF;
+
+
+*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
+
+POSIX optionally offers support for a monotonic clock source. EV can
+take advantage of this clock source to detect time jumps reliably. This
+will usually slow down EV a tiny amount, but this is usually
+well-invested. Unfortunately, some systems are bound to be broken, so
+you can disable this here. Whatever your reasons, you can completely
+disable the detection and use of this monotonic clock by answering 'n'
+here. Support for this clock type will otherwise be autodetected at both
+compile- and runtime.
+
+EOF
+
+if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {
+   $DEFINE .= " -DEV_USE_MONOTONIC";
+}
+
+print <<EOF;
+
+
+*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
+
+POSIX optionally offers support for a (potentially) high-resolution
+realtime clock interface. In a good implementation, using it is faster
+than the normal method of using gettimeofday. Unfortunately, this option
+is also bound to be broken on some systems, so you can disable use and
+probing of this feature altogether here. Otherwise support for this clock
+type will be autodetected at compiletime.
+
+EOF
+
+if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) {
+   $DEFINE .= " -DEV_USE_REALTIME=0";
+}
+
+print <<EOF;
+
+
+*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
+
+EV needs the functions pthread_atfork and clock_gettime. On most systems
+you need some special libraries for this (such as -lrt and -lpthread). You can
+specify additional libraries to provide these calls now, or accept the default.
+
+EOF
+
+$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt";
+
+
+print <<EOF;
+
+
+*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
+
+EV needs the functions pthread_atfork and clock_gettime. On most systems
+you need some special libraries for this (such as -lrt and -lpthread). You can
+specify additional libraries to provide these calls now, or accept the default.
+
+EOF
+
+if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) {
+   $DEFINE .= " -DEV_USE_EPOLL";
+} 
+
+print <<EOF;
+
+
+*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
+
+EOF
+
 #$ENV{CC} = $Config{cc};
 #$ENV{CFLAGS} = join " ", map $Config{$_}, qw(inc optimize ccflags cccdlflags);
 #system "cd libevent && ./configure --disable-shared --enable-static --disable-maintainer-mode"
@@ -34,8 +122,9 @@
        "EV.c" => "EV/EVAPI.h libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c",
     },
     INC       => "-Ilibev",
+    DEFINE    => "$DEFINE",
     NAME => "EV",
-    LIBS => ["-lrt -lpthread"],
+    LIBS => [$LIBS],
     VERSION_FROM => "EV.pm",
     PM           => {
     		    'EV.pm'		=> '$(INST_LIBDIR)/EV.pm',