EV/Makefile.PL

use 5.006;

use Config;
use ExtUtils::MakeMaker;

unless (-e "libev/ev_epoll.c") {
   print <<EOF;

***
*** ERROR: libev is missing or damaged. If you used a CVS check-out of EV,
*** you also have to check-out the "libev" module from the same CVS
*** repository into the EV dir (i.e. EV/libev from outside).
***

EOF
   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. Unfortunately, some systems are bound to be broken, so you can
disable this here: you can completely disable the detection and use of
the monotonic clock by answering 'n' here. Support for this clock type
will otherwise be autodetected at both compile- and runtime.

EOF

$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));

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

$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/));

print <<EOF;

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***


EV can use various backends with various portability issue. The select
backend is the most portable and makes for a good fallback, but it can be
limited to a low number of file descriptors and/or might not compile. If
you have problems with compiling ev_select.c, you might try to play around
with disabling it here, or forcing it to use the fd_set provided by your
OS, via the next question. I highly recommend keeping it in.

EOF

if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
   $DEFINE .= " -DEV_USE_SELECT=1";

   print <<EOF;

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***


The select backend can operate in two modes. One uses the system-provided
fd_set and is usually limited to 1024 file descriptors (64 on windows),
the other requires your header files to define NFDBITS and declare a
suitable fd_mask type. If you run into problems compiling ev_select.c, you
can try forcing the use of the system fd_set here.

EOF

   if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
      $DEFINE .= " -DEV_SELECT_USE_FD_SET";
   } 
} else {
   $DEFINE .= " -DEV_USE_SELECT=0";
} 

print <<EOF;

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***


The second very portable backend is poll(2). It does not exist on windows
and various versions of Mac OS X (and on the other versions it simply
doesn't work), but works basically everywhere else. It is recommended to use
the default here unless you run into compile problems in ev_poll.c.

EOF

$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/));

print <<EOF;

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***


EV by default uses select, which makes it hard to write efficient servers,
especially if the number of active connections is much lower than the open
ones. GNU/Linux systems have a more scalable method called "epoll", which
EV can use. For this to work, both your kernel and glibc have to support
epoll, but if you can compile it, the detection will be done at runtime,
and EV will safely fall back to using select when epoll isn't available.
If unsure, accept the default.

EOF

$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/));

print <<EOF;

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***


Similarly to the epoll backend above, EV can take advantage of kqueue on
many BSD systems. Support for kqueue will be detected at runtime, with a
safe fallback to other methods when it cannot be used.

Note that kqueue is broken on most operating systems, so it defaults to
'n' on most platforms that claim to support it. Here is what we know:

OS X:    completely, utterly broken on at least <= 10.5.
FreeBSD: broken on at least <= 6.2-STABLE,
         sockets and pipes *might* work, ptys definitely don't.
NetBSD:  reports indicate that it likely WORKS. Yeah! :)
OpenBSD: reports indicate that it likely doesn't work
         (similar problems as on FreeBSD).

EOF

my $can_kqueue = $^O =~ /netbsd/i && -e "/usr/include/sys/event.h";

$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));

print <<EOF;

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***


Similarly to the kqueue backend above, EV can take advantage of the
solaris 10 port interface. Support for port will be detected at runtime,
with a safe fallback to other methods when it cannot be used.

EOF

$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/));

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 (and any other
required by EV) now, or accept the default.

EOF

$SOLARIS_LIBS = $^O =~ /solaris/ ? " -lsocket -lnsl" : "";

$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$SOLARIS_LIBS";


print <<EOF;

*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***


EOF

my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : ();

WriteMakefile(
    dist        => {
                    PREOP       => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
                    COMPRESS    => 'gzip -9v',
                    SUFFIX      => '.gz',
                   },
    depend => {
       "EV.c" => "EV/EVAPI.h "
               . "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
               . "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h",
    },
    INC       => "-Ilibev",
    DEFINE    => "$DEFINE",
    NAME => "EV",
    LIBS => [$LIBS],
    PREREQ_PM => {
       @anyevent,
    },
    VERSION_FROM => "EV.pm",
    PM           => {
                    'EV.pm'             => '$(INST_LIBDIR)/EV.pm',
                    'EV/DNS.pm'         => '$(INST_LIBDIR)/EV/DNS.pm',
                    'EV/EVAPI.h'        => '$(INST_LIBDIR)/EV/EVAPI.h',
                    'EV/MakeMaker.pm'   => '$(INST_LIBDIR)/EV/MakeMaker.pm',
                    'libev/ev.h'        => '$(INST_LIBDIR)/EV/ev.h',
                 },
);


Revision:	1.23
Committed:	Thu Nov 22 04:52:24 2007 UTC (16 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-1_2
Changes since 1.22:	+21 -10 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.4	use 5.006;
2
3	root	1.7	use Config;
4	root	1.1	use ExtUtils::MakeMaker;
5
6	root	1.10	unless (-e "libev/ev_epoll.c") {
7			print <<EOF;
8
9			***
10			*** ERROR: libev is missing or damaged. If you used a CVS check-out of EV,
11			*** you also have to check-out the "libev" module from the same CVS
12			*** repository into the EV dir (i.e. EV/libev from outside).
13			***
14
15			EOF
16			exit 1;
17			}
18
19	root	1.11	print <<EOF;
20
21	root	1.22	* * * * * * * * * * * * * * * * * *
22	root	1.11
23
24			Welcome to EV configuration. If you are in a hurry, just press return here
25			and hope for the best. The defaults should usually do.
26
27			EOF
28
29			if (prompt ("Skip further questions and use defaults (y/n)?", "y") =~ /[yY]/) {
30			$ENV{PERL_MM_USE_DEFAULT} = 1;
31			}
32
33			print <<EOF;
34
35	root	1.22	* * * * * * * * * * * * * * * * * *
36	root	1.11
37
38	root	1.14	POSIX optionally offers support for a monotonic clock source. EV
39			can take advantage of this clock source to detect time jumps
40			reliably. Unfortunately, some systems are bound to be broken, so you can
41			disable this here: you can completely disable the detection and use of
42			the monotonic clock by answering 'n' here. Support for this clock type
43			will otherwise be autodetected at both compile- and runtime.
44	root	1.11
45			EOF
46
47	root	1.22	$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
48	root	1.11
49			print <<EOF;
50
51	root	1.22	* * * * * * * * * * * * * * * * * *
52	root	1.11
53
54			POSIX optionally offers support for a (potentially) high-resolution
55			realtime clock interface. In a good implementation, using it is faster
56			than the normal method of using gettimeofday. Unfortunately, this option
57			is also bound to be broken on some systems, so you can disable use and
58			probing of this feature altogether here. Otherwise support for this clock
59			type will be autodetected at compiletime.
60
61			EOF
62
63	root	1.22	$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/));
64	root	1.11
65			print <<EOF;
66
67	root	1.22	* * * * * * * * * * * * * * * * * *
68	root	1.11
69
70	root	1.19	EV can use various backends with various portability issue. The select
71			backend is the most portable and makes for a good fallback, but it can be
72	root	1.22	limited to a low number of file descriptors and/or might not compile. If
73			you have problems with compiling ev_select.c, you might try to play around
74	root	1.19	with disabling it here, or forcing it to use the fd_set provided by your
75			OS, via the next question. I highly recommend keeping it in.
76
77			EOF
78
79			if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
80	root	1.22	$DEFINE .= " -DEV_USE_SELECT=1";
81	root	1.19
82			print <<EOF;
83
84	root	1.22	* * * * * * * * * * * * * * * * * *
85	root	1.19
86
87			The select backend can operate in two modes. One uses the system-provided
88			fd_set and is usually limited to 1024 file descriptors (64 on windows),
89			the other requires your header files to define NFDBITS and declare a
90			suitable fd_mask type. If you run into problems compiling ev_select.c, you
91			can try forcing the use of the system fd_set here.
92
93			EOF
94
95			if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
96			$DEFINE .= " -DEV_SELECT_USE_FD_SET";
97			}
98	root	1.22	} else {
99			$DEFINE .= " -DEV_USE_SELECT=0";
100	root	1.19	}
101
102			print <<EOF;
103
104	root	1.22	* * * * * * * * * * * * * * * * * *
105	root	1.19
106
107			The second very portable backend is poll(2). It does not exist on windows
108			and various versions of Mac OS X (and on the other versions it simply
109			doesn't work), but works basically everywhere else. It is recommended to use
110			the default here unless you run into compile problems in ev_poll.c.
111
112			EOF
113
114	root	1.22	$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/));
115	root	1.19
116			print <<EOF;
117
118	root	1.22	* * * * * * * * * * * * * * * * * *
119	root	1.19
120
121	root	1.15	EV by default uses select, which makes it hard to write efficient servers,
122	root	1.22	especially if the number of active connections is much lower than the open
123	root	1.15	ones. GNU/Linux systems have a more scalable method called "epoll", which
124			EV can use. For this to work, both your kernel and glibc have to support
125			epoll, but if you can compile it, the detection will be done at runtime,
126			and EV will safely fall back to using select when epoll isn't available.
127			If unsure, accept the default.
128	root	1.11
129			EOF
130
131	root	1.22	$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/));
132	root	1.15
133			print <<EOF;
134
135	root	1.22	* * * * * * * * * * * * * * * * * *
136	root	1.15
137
138	root	1.23	Similarly to the epoll backend above, EV can take advantage of kqueue on
139			many BSD systems. Support for kqueue will be detected at runtime, with a
140			safe fallback to other methods when it cannot be used.
141
142			Note that kqueue is broken on most operating systems, so it defaults to
143			'n' on most platforms that claim to support it. Here is what we know:
144
145			OS X: completely, utterly broken on at least <= 10.5.
146			FreeBSD: broken on at least <= 6.2-STABLE,
147			sockets and pipes might work, ptys definitely don't.
148			NetBSD: reports indicate that it likely WORKS. Yeah! :)
149			OpenBSD: reports indicate that it likely doesn't work
150			(similar problems as on FreeBSD).
151	root	1.11
152	root	1.15	EOF
153
154	root	1.23	my $can_kqueue = $^O =~ /netbsd/i && -e "/usr/include/sys/event.h";
155
156			$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
157	root	1.11
158			print <<EOF;
159
160	root	1.22	* * * * * * * * * * * * * * * * * *
161	root	1.11
162
163	root	1.21	Similarly to the kqueue backend above, EV can take advantage of the
164			solaris 10 port interface. Support for port will be detected at runtime,
165			with a safe fallback to other methods when it cannot be used.
166
167			EOF
168
169	root	1.22	$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/));
170	root	1.21
171			print <<EOF;
172
173	root	1.22	* * * * * * * * * * * * * * * * * *
174	root	1.21
175
176	root	1.11	EV needs the functions pthread_atfork and clock_gettime. On most systems
177	root	1.15	you need some special libraries for this (such as -lrt and -lpthread). You
178	root	1.23	can specify additional libraries to provide these calls (and any other
179			required by EV) now, or accept the default.
180	root	1.11
181			EOF
182
183	root	1.23	$SOLARIS_LIBS = $^O =~ /solaris/ ? " -lsocket -lnsl" : "";
184
185			$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$SOLARIS_LIBS";
186	root	1.15
187	root	1.11
188			print <<EOF;
189
190	root	1.22	* * * * * * * * * * * * * * * * * *
191	root	1.11
192
193			EOF
194
195	root	1.20	my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : ();
196
197	root	1.1	WriteMakefile(
198			dist => {
199	root	1.2	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
200	root	1.1	COMPRESS => 'gzip -9v',
201			SUFFIX => '.gz',
202			},
203	root	1.10	depend => {
204	root	1.13	"EV.c" => "EV/EVAPI.h "
205	root	1.17	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
206	root	1.18	. "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h",
207	root	1.10	},
208	root	1.8	INC => "-Ilibev",
209	root	1.11	DEFINE => "$DEFINE",
210	root	1.2	NAME => "EV",
211	root	1.11	LIBS => [$LIBS],
212	root	1.20	PREREQ_PM => {
213			@anyevent,
214			},
215	root	1.2	VERSION_FROM => "EV.pm",
216	root	1.5	PM => {
217			'EV.pm' => '$(INST_LIBDIR)/EV.pm',
218	root	1.12	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
219	root	1.5	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
220			'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
221	root	1.8	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
222	root	1.5	},
223	root	1.1	);
224
225	root	1.6