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

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 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., 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";

   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";
   } 
} 

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

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

print <<EOF;


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

EV by default uses select, which makes it hard to write efficient servers,
especially if the number of active conencitons 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

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

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

if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) {
   $DEFINE .= " -DEV_USE_KQUEUE";
} 

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:	1.20
Committed:	Wed Nov 14 22:30:50 2007 UTC (16 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.19:	+5 -1 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	if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {
48	$DEFINE .= " -DEV_USE_MONOTONIC";
49	}
50
51	print <<EOF;
52
53
54	* * * * * * * * * * * * * * * * * *
55
56	POSIX optionally offers support for a (potentially) high-resolution
57	realtime clock interface. In a good implementation, using it is faster
58	than the normal method of using gettimeofday. Unfortunately, this option
59	is also bound to be broken on some systems, so you can disable use and
60	probing of this feature altogether here. Otherwise support for this clock
61	type will be autodetected at compiletime.
62
63	EOF
64
65	if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) {
66	$DEFINE .= " -DEV_USE_REALTIME=0";
67	}
68
69	print <<EOF;
70
71
72	* * * * * * * * * * * * * * * * * *
73
74	EV can use various backends with various portability issue. The select
75	backend is the most portable and makes for a good fallback, but it can be
76	limited to a low number of file descriptors and/or might not compile. If
77	you have problems with compiling ev_select., you might try to play around
78	with disabling it here, or forcing it to use the fd_set provided by your
79	OS, via the next question. I highly recommend keeping it in.
80
81	EOF
82
83	if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
84	$DEFINE .= " -DEV_USE_SELECT";
85
86	print <<EOF;
87
88
89	* * * * * * * * * * * * * * * * * *
90
91	The select backend can operate in two modes. One uses the system-provided
92	fd_set and is usually limited to 1024 file descriptors (64 on windows),
93	the other requires your header files to define NFDBITS and declare a
94	suitable fd_mask type. If you run into problems compiling ev_select.c, you
95	can try forcing the use of the system fd_set here.
96
97	EOF
98
99	if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
100	$DEFINE .= " -DEV_SELECT_USE_FD_SET";
101	}
102	}
103
104	print <<EOF;
105
106
107	* * * * * * * * * * * * * * * * * *
108
109	The second very portable backend is poll(2). It does not exist on windows
110	and various versions of Mac OS X (and on the other versions it simply
111	doesn't work), but works basically everywhere else. It is recommended to use
112	the default here unless you run into compile problems in ev_poll.c.
113
114	EOF
115
116	if (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/) {
117	$DEFINE .= " -DEV_USE_POLL";
118	}
119
120	print <<EOF;
121
122
123	* * * * * * * * * * * * * * * * * *
124
125	EV by default uses select, which makes it hard to write efficient servers,
126	especially if the number of active conencitons is much lower than the open
127	ones. GNU/Linux systems have a more scalable method called "epoll", which
128	EV can use. For this to work, both your kernel and glibc have to support
129	epoll, but if you can compile it, the detection will be done at runtime,
130	and EV will safely fall back to using select when epoll isn't available.
131	If unsure, accept the default.
132
133	EOF
134
135	if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) {
136	$DEFINE .= " -DEV_USE_EPOLL";
137	}
138
139	print <<EOF;
140
141
142	* * * * * * * * * * * * * * * * * *
143
144	Similarly to the epoll backend above, EV can take advantage of kqueue
145	on many BSD systems (it seems to be broken on Mac OS X though, but what
146	isn't broken on that shoddy platform... ah yes, the cash gushing by apple,
147	selling defective software works perfectly there). Support for kqueue will
148	be detected at runtime, with a safe fallback to other methods when it
149	cannot be used.
150
151	EOF
152
153	if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) {
154	$DEFINE .= " -DEV_USE_KQUEUE";
155	}
156
157	print <<EOF;
158
159
160	* * * * * * * * * * * * * * * * * *
161
162	EV needs the functions pthread_atfork and clock_gettime. On most systems
163	you need some special libraries for this (such as -lrt and -lpthread). You
164	can specify additional libraries to provide these calls now, or accept the
165	default.
166
167	EOF
168
169	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt";
170
171
172	print <<EOF;
173
174
175	* * * * * * * * * * * * * * * * * *
176
177	EOF
178
179	my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : ();
180
181	WriteMakefile(
182	dist => {
183	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
184	COMPRESS => 'gzip -9v',
185	SUFFIX => '.gz',
186	},
187	depend => {
188	"EV.c" => "EV/EVAPI.h "
189	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
190	. "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h",
191	},
192	INC => "-Ilibev",
193	DEFINE => "$DEFINE",
194	NAME => "EV",
195	LIBS => [$LIBS],
196	PREREQ_PM => {
197	@anyevent,
198	},
199	VERSION_FROM => "EV.pm",
200	PM => {
201	'EV.pm' => '$(INST_LIBDIR)/EV.pm',
202	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
203	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
204	'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
205	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
206	},
207	);
208
209