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Comparing EV/Makefile.PL (file contents):
Revision 1.37 by root, Thu Oct 30 04:01:46 2008 UTC vs.
Revision 1.54 by root, Tue Oct 22 10:43:05 2013 UTC

1use 5.006; 1use 5.008002;
2 2
3use strict qw(vars subs); 3use strict qw(vars subs);
4use Config; 4use Config;
5use ExtUtils::MakeMaker; 5use ExtUtils::MakeMaker;
6 6
… …
35 35
36*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 36*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
37 37
38 38
39POSIX optionally offers support for a monotonic clock source. EV 39POSIX optionally offers support for a monotonic clock source. EV
40can take advantage of this clock source to detect time jumps 40can take advantage of this clock source to detect time jumps more
41reliably. Unfortunately, some systems are bound to be broken, so you can 41reliably. Unfortunately, some systems are bound to be broken, so you can
42disable this here: you can completely disable the detection and use of 42disable this here: you can completely disable the detection and use of
43the monotonic clock by answering 'n' here. Support for this clock type 43the monotonic clock by answering 'n' here. Support for this clock type
44will otherwise be autodetected at both compile- and runtime. (this setting 44will otherwise be autodetected at both compile- and runtime. (this setting
45currently affects the use of nanosleep over select as well). 45currently affects the use of nanosleep over select as well).
… …
54 54
55 55
56POSIX optionally offers support for a (potentially) high-resolution 56POSIX optionally offers support for a (potentially) high-resolution
57realtime clock interface. In a good implementation, using it is faster 57realtime clock interface. In a good implementation, using it is faster
58than the normal method of using gettimeofday. Unfortunately, this option 58than the normal method of using gettimeofday. Unfortunately, this option
59is also bound to be broken on some systems, so you can disable use and 59is also bound to be broken on some systems, and current EV versions do not
60probing of this feature altogether here. Otherwise support for this clock 60actually call gettimeofday very often, so it defaults to no.
61type will be autodetected at compiletime.
62 61
63EOF 62EOF
64 63
65$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/)); 64$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
66 65
67print <<EOF; 66print <<EOF;
68 67
69*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 68*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
70 69
71 70
72EV can use various backends with various portability issue. The select 71EV can use various backends with various portability issues. The select
73backend is the most portable and makes for a good fallback, but it can be 72backend is the most portable and makes for a good fallback, but it can be
74limited to a low number of file descriptors and/or might not compile. If 73limited to a low number of file descriptors and/or might not compile. If
75you have problems with compiling ev_select.c, you might try to play around 74you have problems with compiling ev_select.c, you might try to play around
76with disabling it here, or forcing it to use the fd_set provided by your 75with disabling it here, or forcing it to use the fd_set provided by your
77OS, via the next question. I highly recommend keeping it in. 76OS, via the next question. I highly recommend keeping it in.
… …
143many BSD systems. Support for kqueue will be detected at runtime, with a 142many BSD systems. Support for kqueue will be detected at runtime, with a
144safe fallback to other methods when it cannot be used. 143safe fallback to other methods when it cannot be used.
145 144
146Note that kqueue is broken on most operating systems, so by default it 145Note that kqueue is broken on most operating systems, so by default it
147won't be used on many platforms, but you can still create your own event 146won't be used on many platforms, but you can still create your own event
148loop with kqueue backend. 147loop with kqueue backend if you ask specifically for it.
149 148
150Here is what we know: 149Here is what we know:
151 150
152NetBSD: partially working in at least 3.1. Yeah! :) 151NetBSD: partially working in at least 3.1 and later. Yeah! :)
153FreeBSD: broken on at least 6.2-STABLE, 152FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
154 sockets *likely* work, ptys definitely don't. 153 sockets *likely* work, ptys definitely don't.
155OpenBSD: reports indicate that it likely doesn't work 154OpenBSD: reports indicate that it likely doesn't work
156 (similar problems as on FreeBSD). 155 (similar problems as on FreeBSD).
157OS X: completely, utterly broken on at least < 10.5. 156OS X: completely, utterly broken on at least <= 10.6.
158 157
159EOF 158EOF
160 159
161my $can_kqueue = -e "/usr/include/sys/event.h"; 160my $can_kqueue = -e "/usr/include/sys/event.h";
162$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE}; 161$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
… …
183EV needs the functions pthread_atfork and clock_gettime. On most systems 182EV needs the functions pthread_atfork and clock_gettime. On most systems
184you need some special libraries for this (such as -lrt and -lpthread). You 183you need some special libraries for this (such as -lrt and -lpthread). You
185can specify additional libraries to provide these calls (and any other 184can specify additional libraries to provide these calls (and any other
186required by EV) now, or accept the default. 185required by EV) now, or accept the default.
187 186
188EOF 187On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
188to avoid the dependency on libpthread, and directly uses the clock_gettime
189syscall to avoid a dependency on librt.
189 190
191EOF
192
190my $solaris_libs = $^O =~ /solaris/ ? " -lsocket -lnsl" : ""; 193my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
194my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
195my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
191my $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$solaris_libs"; 196$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
192 197
193 198
194print <<EOF; 199print <<EOF;
195 200
196*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 201*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
197 202
198 203
199A backend of a different kind is the Linux inotify(7) interface, which can 204A backend of a different kind is the Linux inotify(7) interface, which can
200be used to speed up (and reduce resource consumption) of stat watchers. If 205be used to speed up (and reduce resource consumption) of stat watchers. If
201you have it, it is usually a good idea to enable it. 206you have the include file and libc support for it, it is usually a good
207idea to enable it, as kernel availability is detected at runtime.
202 208
203EOF 209EOF
204 210
205my $can_inotify = -e "/usr/include/sys/inotify.h"; 211my $can_inotify = -e "/usr/include/sys/inotify.h";
206$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY}; 212$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
… …
226print <<EOF; 232print <<EOF;
227 233
228*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 234*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
229 235
230 236
231EOF 237Another sometimes useful bit of functionality is the Linux signalfd, which
238is useful for faster signal handling (don't care). Kernel support for
239this will be probed at runtime, but your libc must contain the necessary
240wrapper. Glibc 2.7 and later should have this wrapper.
232 241
242EOF
243
244my $can_signalfd = -e "/usr/include/sys/signalfd.h";
245$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
246$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
247
248print <<EOF;
249
250*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
251
252
253Very rarely, people want to tweak EV even more, e.g. to exclude
254or include certain watcher types or backends. This can be done by adding
255extra -D options here, or via the EV_EXTRA_DEFS environment variable.
256
257For example, if you run into compile problems because of missing memory
258fences (or you just want extra performance), you can tell EV to not support
259smp and threads via -DEV_NO_THREADS.
260
261Normal persons just press enter.
262
263EOF
264
265$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
266
267print <<EOF;
268
269*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
270
271
272EOF
273
233my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 274my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
234 275
235WriteMakefile( 276WriteMakefile(
236 dist => { 277 dist => {
237 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 278 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
238 COMPRESS => 'gzip -9v', 279 COMPRESS => 'gzip -9v',
… …
247 DEFINE => "$DEFINE", 288 DEFINE => "$DEFINE",
248 NAME => "EV", 289 NAME => "EV",
249 LIBS => [$LIBS], 290 LIBS => [$LIBS],
250 PREREQ_PM => { 291 PREREQ_PM => {
251 @anyevent, 292 @anyevent,
293 "common::sense" => 0,
252 }, 294 },
253 VERSION_FROM => "EV.pm", 295 VERSION_FROM => "EV.pm",
254 PM => { 296 PM => {
255 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 297 'EV.pm' => '$(INST_LIB)/EV.pm',
256 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 298 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
257 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 299 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
258 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 300 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
259 'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod', 301 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
260 }, 302 },
261 MAN3PODS => { 303 MAN3PODS => {
262 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)', 304 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
263 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)', 305 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
264 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)', 306 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',

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