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 (it seems to be broken on Mac OS X though, but what
isn't broken on that shoddy platform... ah yes, the cash gushing by apple,
selling defective software works perfectly there). Support for kqueue will
be detected at runtime, with a safe fallback to other methods when it
cannot be used.

EOF

$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "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 now, or accept the
default.

EOF

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


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:	1.22
Committed:	Sat Nov 17 01:41:33 2007 UTC (16 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-1_1
Changes since 1.21:	+23 -33 lines
Log Message:	* empty log message *
#	Content
1	use 5.006;
2
3	use Config;
4	use ExtUtils::MakeMaker;
5
6	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	print <<EOF;
20
21	* * * * * * * * * * * * * * * * * *
22
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	* * * * * * * * * * * * * * * * * *
36
37
38	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
45	EOF
46
47	$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
48
49	print <<EOF;
50
51	* * * * * * * * * * * * * * * * * *
52
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	$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/));
64
65	print <<EOF;
66
67	* * * * * * * * * * * * * * * * * *
68
69
70	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	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	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	$DEFINE .= " -DEV_USE_SELECT=1";
81
82	print <<EOF;
83
84	* * * * * * * * * * * * * * * * * *
85
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	} else {
99	$DEFINE .= " -DEV_USE_SELECT=0";
100	}
101
102	print <<EOF;
103
104	* * * * * * * * * * * * * * * * * *
105
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	$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/));
115
116	print <<EOF;
117
118	* * * * * * * * * * * * * * * * * *
119
120
121	EV by default uses select, which makes it hard to write efficient servers,
122	especially if the number of active connections is much lower than the open
123	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
129	EOF
130
131	$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/));
132
133	print <<EOF;
134
135	* * * * * * * * * * * * * * * * * *
136
137
138	Similarly to the epoll backend above, EV can take advantage of kqueue
139	on many BSD systems (it seems to be broken on Mac OS X though, but what
140	isn't broken on that shoddy platform... ah yes, the cash gushing by apple,
141	selling defective software works perfectly there). Support for kqueue will
142	be detected at runtime, with a safe fallback to other methods when it
143	cannot be used.
144
145	EOF
146
147	$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/));
148
149	print <<EOF;
150
151	* * * * * * * * * * * * * * * * * *
152
153
154	Similarly to the kqueue backend above, EV can take advantage of the
155	solaris 10 port interface. Support for port will be detected at runtime,
156	with a safe fallback to other methods when it cannot be used.
157
158	EOF
159
160	$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/));
161
162	print <<EOF;
163
164	* * * * * * * * * * * * * * * * * *
165
166
167	EV needs the functions pthread_atfork and clock_gettime. On most systems
168	you need some special libraries for this (such as -lrt and -lpthread). You
169	can specify additional libraries to provide these calls now, or accept the
170	default.
171
172	EOF
173
174	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt";
175
176
177	print <<EOF;
178
179	* * * * * * * * * * * * * * * * * *
180
181
182	EOF
183
184	my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : ();
185
186	WriteMakefile(
187	dist => {
188	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
189	COMPRESS => 'gzip -9v',
190	SUFFIX => '.gz',
191	},
192	depend => {
193	"EV.c" => "EV/EVAPI.h "
194	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
195	. "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h",
196	},
197	INC => "-Ilibev",
198	DEFINE => "$DEFINE",
199	NAME => "EV",
200	LIBS => [$LIBS],
201	PREREQ_PM => {
202	@anyevent,
203	},
204	VERSION_FROM => "EV.pm",
205	PM => {
206	'EV.pm' => '$(INST_LIBDIR)/EV.pm',
207	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
208	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
209	'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
210	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
211	},
212	);
213
214