--- Coro/Makefile.PL	2007/10/29 19:13:39	1.33
+++ Coro/Makefile.PL	2008/12/13 19:18:36	1.55
@@ -1,5 +1,18 @@
 use ExtUtils::MakeMaker;
 
+unless (-e "Coro/libcoro/coro.c") {
+   print <<EOF;
+
+***
+*** ERROR: Coro/libcoro is missing or damaged. If you used a CVS check-out
+*** of Coro, you also have to check-out the "libcoro" module from the same CVS
+*** repository in the Coro subdirectory (i.e. Coro/Coro/libcoro from outside).
+***
+
+EOF
+   exit 1;
+}
+
 print "*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\n\n";
 
 if ($] < 5.006) {
@@ -40,9 +53,21 @@
 }
 
 if (eval { require EV }) {
-   $EV = 1;
-   $DEFINE .= " -DHAVE_EV=1";
-   print "\nEV version $EV::VERSION found, building EV support.\n\n";
+   if ($EV::VERSION < 3.3) {
+      print <<EOF
+
+*** 
+*** WARNING: Event version $EV::VERSION found, NOT building EV support.
+***
+*** This version is ABI-incompatible with Coro, please upgrade to at least 3.3.
+***
+
+EOF
+   } else {
+      $EV = 1;
+      $DEFINE .= " -DHAVE_EV=1";
+      print "\nEV version $EV::VERSION found, building EV support.\n\n";
+   }
 } else {
    print "\n*** EV not found, not build EV support.\n\n";
 }
@@ -58,18 +83,37 @@
     DIR          => ['Coro', ($EVENT ? 'Event' : ()), ($EV ? "EV" : ())],
     PREREQ_PM    => {
        Scalar::Util	=> 0.00,
-       AnyEvent         => 2.51,
+       AnyEvent         => 4.1,
        Storable		=> 2.15,
        Time::HiRes      => 0,
+       Guard            => 0.5,
 
        # for Coro::Event
-       Event		=> 1.06,
+       #Event		=> 1.06,
 
        # for Coro::EV
-       EV               => 0.03,
+       #EV               => 3.3,
 
        # for Coro::AIO
-       IO::AIO          => 2.3,
+       #IO::AIO          => 2.3,
+       #AnyEvent::AIO    => 1.0,
+
+       # for Coro::BDB
+       #BDB              => 1.5,
+       #AnyEvent::BDB    => 1.0,
+    },
+    # neither configure_requires nor recommends can be used
+    # for optional dependencies. whoever decided that a module needs
+    # to build properly without its dependencies installed
+    # needs his brain rearranged dramatically.
+    EXTRA_META => q{
+recommends:
+  Event: 1.08
+  EV: 3.0
+  IO::AIO: 3.1
+  AnyEvent::AIO: 1.0
+  BDB: 0
+  AnyEvent::BDB: 1.0
     },
     PM           => {
     		    'Coro.pm'		=> '$(INST_LIBDIR)/Coro.pm',
@@ -97,8 +141,10 @@
     		    'Coro/Socket.pm'	=> '$(INST_LIBDIR)/Coro/Socket.pm',
 
     		    'Coro/AIO.pm'	=> '$(INST_LIBDIR)/Coro/AIO.pm',
+    		    'Coro/BDB.pm'	=> '$(INST_LIBDIR)/Coro/BDB.pm',
     		    'Coro/LWP.pm'	=> '$(INST_LIBDIR)/Coro/LWP.pm',
     		    'Coro/Storable.pm'	=> '$(INST_LIBDIR)/Coro/Storable.pm',
+    		    'Coro/AnyEvent.pm'	=> '$(INST_LIBDIR)/Coro/AnyEvent.pm',
                     },
 );
 
@@ -107,7 +153,7 @@
 
 # set \$VERSION in all modules
 setver:
-	\$(PERL) -pi -e 's/^(\\s*(our\\s*)?\\\$\$VERSION\\s*=\\s*).*\$\$/\$\${1}\$(VERSION);/' *.pm Coro/*.pm Event/*.pm
+	\$(PERL) -pi -e 's/^(\\s*(our\\s*)?\\\$\$VERSION\\s*=\\s*).*\$\$/\$\${1}\$(VERSION);/' *.pm Coro/*.pm EV/*.pm Event/*.pm
 
 EOF
 }