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 *
#	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
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	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			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	root	1.19	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	root	1.15	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	root	1.11
133			EOF
134
135	root	1.15	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	root	1.19	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	root	1.11
151	root	1.15	EOF
152
153	root	1.16	if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) {
154	root	1.15	$DEFINE .= " -DEV_USE_KQUEUE";
155			}
156	root	1.11
157			print <<EOF;
158
159
160			* * * * * * * * * * * * * * * * * *
161
162			EV needs the functions pthread_atfork and clock_gettime. On most systems
163	root	1.15	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	root	1.11
167			EOF
168
169	root	1.15	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt";
170
171	root	1.11
172			print <<EOF;
173
174
175			* * * * * * * * * * * * * * * * * *
176
177			EOF
178
179	root	1.20	my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : ();
180
181	root	1.1	WriteMakefile(
182			dist => {
183	root	1.2	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
184	root	1.1	COMPRESS => 'gzip -9v',
185			SUFFIX => '.gz',
186			},
187	root	1.10	depend => {
188	root	1.13	"EV.c" => "EV/EVAPI.h "
189	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 "
190	root	1.18	. "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h",
191	root	1.10	},
192	root	1.8	INC => "-Ilibev",
193	root	1.11	DEFINE => "$DEFINE",
194	root	1.2	NAME => "EV",
195	root	1.11	LIBS => [$LIBS],
196	root	1.20	PREREQ_PM => {
197			@anyevent,
198			},
199	root	1.2	VERSION_FROM => "EV.pm",
200	root	1.5	PM => {
201			'EV.pm' => '$(INST_LIBDIR)/EV.pm',
202	root	1.12	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
203	root	1.5	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
204			'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
205	root	1.8	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
206	root	1.5	},
207	root	1.1	);
208
209	root	1.6