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

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 => [$LIBS],
    VERSION_FROM => "EV.pm",
    PM           => {
                    'EV.pm'             => '$(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:	1.19
Committed:	Mon Nov 12 01:01:13 2007 UTC (16 years, 6 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-0_8, rel-0_9
Changes since 1.18:	+57 -6 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
7			unless (-e "libev/ev_epoll.c") {
8			print <<EOF;
9
10			***
11			*** ERROR: libev is missing or damaged. If you used a CVS check-out of EV,
12			*** you also have to check-out the "libev" module from the same CVS
13			*** repository into the EV dir (i.e. EV/libev from outside).
14			***
15
16			EOF
17			exit 1;
18			}
19
20	root	1.11	print <<EOF;
21
22
23			* * * * * * * * * * * * * * * * * *
24
25			Welcome to EV configuration. If you are in a hurry, just press return here
26			and hope for the best. The defaults should usually do.
27
28			EOF
29
30			if (prompt ("Skip further questions and use defaults (y/n)?", "y") =~ /[yY]/) {
31			$ENV{PERL_MM_USE_DEFAULT} = 1;
32			}
33
34			print <<EOF;
35
36
37			* * * * * * * * * * * * * * * * * *
38
39	root	1.14	POSIX optionally offers support for a monotonic clock source. EV
40			can take advantage of this clock source to detect time jumps
41			reliably. Unfortunately, some systems are bound to be broken, so you can
42			disable this here: you can completely disable the detection and use of
43			the monotonic clock by answering 'n' here. Support for this clock type
44			will otherwise be autodetected at both compile- and runtime.
45	root	1.11
46			EOF
47
48			if (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {
49			$DEFINE .= " -DEV_USE_MONOTONIC";
50			}
51
52			print <<EOF;
53
54
55			* * * * * * * * * * * * * * * * * *
56
57			POSIX optionally offers support for a (potentially) high-resolution
58			realtime clock interface. In a good implementation, using it is faster
59			than the normal method of using gettimeofday. Unfortunately, this option
60			is also bound to be broken on some systems, so you can disable use and
61			probing of this feature altogether here. Otherwise support for this clock
62			type will be autodetected at compiletime.
63
64			EOF
65
66			if (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") !~ /[yY]/) {
67			$DEFINE .= " -DEV_USE_REALTIME=0";
68			}
69
70			print <<EOF;
71
72
73			* * * * * * * * * * * * * * * * * *
74
75	root	1.19	EV can use various backends with various portability issue. The select
76			backend is the most portable and makes for a good fallback, but it can be
77			limited to a low number of file descriptors and/or might not compile. If
78			you have problems with compiling ev_select., you might try to play around
79			with disabling it here, or forcing it to use the fd_set provided by your
80			OS, via the next question. I highly recommend keeping it in.
81
82			EOF
83
84			if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
85			$DEFINE .= " -DEV_USE_SELECT";
86
87			print <<EOF;
88
89
90			* * * * * * * * * * * * * * * * * *
91
92			The select backend can operate in two modes. One uses the system-provided
93			fd_set and is usually limited to 1024 file descriptors (64 on windows),
94			the other requires your header files to define NFDBITS and declare a
95			suitable fd_mask type. If you run into problems compiling ev_select.c, you
96			can try forcing the use of the system fd_set here.
97
98			EOF
99
100			if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
101			$DEFINE .= " -DEV_SELECT_USE_FD_SET";
102			}
103			}
104
105			print <<EOF;
106
107
108			* * * * * * * * * * * * * * * * * *
109
110			The second very portable backend is poll(2). It does not exist on windows
111			and various versions of Mac OS X (and on the other versions it simply
112			doesn't work), but works basically everywhere else. It is recommended to use
113			the default here unless you run into compile problems in ev_poll.c.
114
115			EOF
116
117			if (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/) {
118			$DEFINE .= " -DEV_USE_POLL";
119			}
120
121			print <<EOF;
122
123
124			* * * * * * * * * * * * * * * * * *
125
126	root	1.15	EV by default uses select, which makes it hard to write efficient servers,
127			especially if the number of active conencitons is much lower than the open
128			ones. GNU/Linux systems have a more scalable method called "epoll", which
129			EV can use. For this to work, both your kernel and glibc have to support
130			epoll, but if you can compile it, the detection will be done at runtime,
131			and EV will safely fall back to using select when epoll isn't available.
132			If unsure, accept the default.
133	root	1.11
134			EOF
135
136	root	1.15	if (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/) {
137			$DEFINE .= " -DEV_USE_EPOLL";
138			}
139
140			print <<EOF;
141
142
143			* * * * * * * * * * * * * * * * * *
144
145	root	1.19	Similarly to the epoll backend above, EV can take advantage of kqueue
146			on many BSD systems (it seems to be broken on Mac OS X though, but what
147			isn't broken on that shoddy platform... ah yes, the cash gushing by apple,
148			selling defective software works perfectly there). Support for kqueue will
149			be detected at runtime, with a safe fallback to other methods when it
150			cannot be used.
151	root	1.11
152	root	1.15	EOF
153
154	root	1.16	if (prompt ("Enable kqueue backend (y/n)?", (-e "/usr/include/sys/event.h") ? "y" : "n") =~ /[yY]/) {
155	root	1.15	$DEFINE .= " -DEV_USE_KQUEUE";
156			}
157	root	1.11
158			print <<EOF;
159
160
161			* * * * * * * * * * * * * * * * * *
162
163			EV needs the functions pthread_atfork and clock_gettime. On most systems
164	root	1.15	you need some special libraries for this (such as -lrt and -lpthread). You
165			can specify additional libraries to provide these calls now, or accept the
166			default.
167	root	1.11
168			EOF
169
170	root	1.15	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt";
171
172	root	1.11
173			print <<EOF;
174
175
176			* * * * * * * * * * * * * * * * * *
177
178			EOF
179
180	root	1.1	WriteMakefile(
181			dist => {
182	root	1.2	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
183	root	1.1	COMPRESS => 'gzip -9v',
184			SUFFIX => '.gz',
185			},
186	root	1.10	depend => {
187	root	1.13	"EV.c" => "EV/EVAPI.h "
188	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 "
189	root	1.18	. "libev/event.h libev/event.c evdns.h evdns.c libev/ev_vars.h libev/ev_wrap.h",
190	root	1.10	},
191	root	1.8	INC => "-Ilibev",
192	root	1.11	DEFINE => "$DEFINE",
193	root	1.2	NAME => "EV",
194	root	1.11	LIBS => [$LIBS],
195	root	1.2	VERSION_FROM => "EV.pm",
196	root	1.5	PM => {
197			'EV.pm' => '$(INST_LIBDIR)/EV.pm',
198	root	1.12	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
199	root	1.5	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',
200			'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',
201	root	1.8	'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h',
202	root	1.5	},
203	root	1.1	);
204
205	root	1.6