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Comparing EV/Makefile.PL (file contents):
Revision 1.31 by root, Thu Jan 31 19:59:23 2008 UTC vs.
Revision 1.55 by root, Sat Sep 6 18:42:18 2014 UTC

1use 5.006; 1use 5.008002;
2 2
3use strict qw(vars subs);
3use Config; 4use Config;
4use ExtUtils::MakeMaker; 5use ExtUtils::MakeMaker;
6
7sub have_inc($) {
8 scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth}
9}
5 10
6unless (-e "libev/ev_epoll.c") { 11unless (-e "libev/ev_epoll.c") {
7 print <<EOF; 12 print <<EOF;
8 13
9*** 14***
34 39
35*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 40*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
36 41
37 42
38POSIX optionally offers support for a monotonic clock source. EV 43POSIX optionally offers support for a monotonic clock source. EV
39can take advantage of this clock source to detect time jumps 44can take advantage of this clock source to detect time jumps more
40reliably. Unfortunately, some systems are bound to be broken, so you can 45reliably. Unfortunately, some systems are bound to be broken, so you can
41disable this here: you can completely disable the detection and use of 46disable this here: you can completely disable the detection and use of
42the monotonic clock by answering 'n' here. Support for this clock type 47the monotonic clock by answering 'n' here. Support for this clock type
43will otherwise be autodetected at both compile- and runtime. (this setting 48will otherwise be autodetected at both compile- and runtime. (this setting
44currently affects the use of nanosleep over select as well). 49currently affects the use of nanosleep over select as well).
45 50
46EOF 51EOF
47 52
48$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/)); 53my $DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/));
49 54
50print <<EOF; 55print <<EOF;
51 56
52*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 57*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
53 58
54 59
55POSIX optionally offers support for a (potentially) high-resolution 60POSIX optionally offers support for a (potentially) high-resolution
56realtime clock interface. In a good implementation, using it is faster 61realtime clock interface. In a good implementation, using it is faster
57than the normal method of using gettimeofday. Unfortunately, this option 62than the normal method of using gettimeofday. Unfortunately, this option
58is also bound to be broken on some systems, so you can disable use and 63is also bound to be broken on some systems, and current EV versions do not
59probing of this feature altogether here. Otherwise support for this clock 64actually call gettimeofday very often, so it defaults to no.
60type will be autodetected at compiletime.
61 65
62EOF 66EOF
63 67
64$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/)); 68$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
65 69
66print <<EOF; 70print <<EOF;
67 71
68*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 72*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
69 73
70 74
71EV can use various backends with various portability issue. The select 75EV can use various backends with various portability issues. The select
72backend is the most portable and makes for a good fallback, but it can be 76backend is the most portable and makes for a good fallback, but it can be
73limited to a low number of file descriptors and/or might not compile. If 77limited to a low number of file descriptors and/or might not compile. If
74you have problems with compiling ev_select.c, you might try to play around 78you have problems with compiling ev_select.c, you might try to play around
75with disabling it here, or forcing it to use the fd_set provided by your 79with disabling it here, or forcing it to use the fd_set provided by your
76OS, via the next question. I highly recommend keeping it in. 80OS, via the next question. I highly recommend keeping it in.
93 97
94EOF 98EOF
95 99
96 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) { 100 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
97 $DEFINE .= " -DEV_SELECT_USE_FD_SET"; 101 $DEFINE .= " -DEV_SELECT_USE_FD_SET";
98 } 102 }
99} else { 103} else {
100 $DEFINE .= " -DEV_USE_SELECT=0"; 104 $DEFINE .= " -DEV_USE_SELECT=0";
101} 105}
102 106
103print <<EOF; 107print <<EOF;
104 108
105*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 109*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
106 110
110doesn't work), but works basically everywhere else. It is recommended to use 114doesn't work), but works basically everywhere else. It is recommended to use
111the default here unless you run into compile problems in ev_poll.c. 115the default here unless you run into compile problems in ev_poll.c.
112 116
113EOF 117EOF
114 118
115$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/)); 119$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/));
116 120
117print <<EOF; 121print <<EOF;
118 122
119*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 123*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
120 124
127fall back to using select when epoll isn't available. If unsure, accept 131fall back to using select when epoll isn't available. If unsure, accept
128the default. 132the default.
129 133
130EOF 134EOF
131 135
136my $can_epoll = have_inc "sys/epoll.h";
137$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
132$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/)); 138$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
133 139
134print <<EOF; 140print <<EOF;
135 141
136*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 142*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
137 143
140many BSD systems. Support for kqueue will be detected at runtime, with a 146many BSD systems. Support for kqueue will be detected at runtime, with a
141safe fallback to other methods when it cannot be used. 147safe fallback to other methods when it cannot be used.
142 148
143Note that kqueue is broken on most operating systems, so by default it 149Note that kqueue is broken on most operating systems, so by default it
144won't be used on many platforms, but you can still create your own event 150won't be used on many platforms, but you can still create your own event
145loop with qkueue backend. 151loop with kqueue backend if you ask specifically for it.
146 152
147Here is what we know: 153Here is what we know:
148 154
149NetBSD: partially working in at least 3.1. Yeah! :) 155NetBSD: partially working in at least 3.1 and later. Yeah! :)
150FreeBSD: broken on at least 6.2-STABLE, 156FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
151 sockets *likely* work, ptys definitely don't. 157 sockets *likely* work, ptys definitely don't.
152OpenBSD: reports indicate that it likely doesn't work 158OpenBSD: reports indicate that it likely doesn't work
153 (similar problems as on FreeBSD). 159 (similar problems as on FreeBSD).
154OS X: completely, utterly broken on at least < 10.5. 160OS X: completely, utterly broken on at least <= 10.6.
155 161
156EOF 162EOF
157 163
158my $can_kqueue = -e "/usr/include/sys/event.h"; 164my $can_kqueue = have_inc "sys/event.h";
159 165$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
160$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); 166$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
161 167
162print <<EOF; 168print <<EOF;
163 169
164*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 170*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
168solaris 10 event port interface. Support for event ports will be detected 174solaris 10 event port interface. Support for event ports will be detected
169at runtime, with a safe fallback to other methods when it cannot be used. 175at runtime, with a safe fallback to other methods when it cannot be used.
170 176
171EOF 177EOF
172 178
173$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/)); 179$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/));
174 180
175print <<EOF; 181print <<EOF;
176 182
177*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 183*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
178 184
180EV needs the functions pthread_atfork and clock_gettime. On most systems 186EV needs the functions pthread_atfork and clock_gettime. On most systems
181you need some special libraries for this (such as -lrt and -lpthread). You 187you need some special libraries for this (such as -lrt and -lpthread). You
182can specify additional libraries to provide these calls (and any other 188can specify additional libraries to provide these calls (and any other
183required by EV) now, or accept the default. 189required by EV) now, or accept the default.
184 190
185EOF 191On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
192to avoid the dependency on libpthread, and directly uses the clock_gettime
193syscall to avoid a dependency on librt.
186 194
195EOF
196
187$SOLARIS_LIBS = $^O =~ /solaris/ ? " -lsocket -lnsl" : ""; 197my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
188 198my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
199my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
189$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$SOLARIS_LIBS"; 200$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
190 201
191 202
192print <<EOF; 203print <<EOF;
193 204
194*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 205*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
195 206
196 207
197A backend of a different kind is the Linux inotify(7) interface, which can 208A backend of a different kind is the Linux inotify(7) interface, which can
198be used to speed up (and reduce resource consumption) of stat watchers. If 209be used to speed up (and reduce resource consumption) of stat watchers. If
199you have it, it is usually a good idea to enable it. 210you have the include file and libc support for it, it is usually a good
211idea to enable it, as kernel availability is detected at runtime.
200 212
201EOF 213EOF
202 214
203my $can_inotify = -e "/usr/include/sys/inotify.h"; 215my $can_inotify = have_inc "sys/inotify.h";
204 216$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
205$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); 217$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
206 218
207print <<EOF; 219print <<EOF;
208 220
209*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 221*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
210 222
211 223
212EOF 224Another useful bit of functionality is the Linux eventfd, which is useful
225for faster signal handling (don't care) and intra-thread communications
226(more relevant). Kernel support for this will be probed at runtime, but
227your libc must contain the necessary wrapper. Glibc 2.7 and later should
228have this wrapper.
213 229
230EOF
231
232my $can_eventfd = have_inc "sys/eventfd.h";
233$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
234$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
235
236print <<EOF;
237
238*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
239
240
241Another sometimes useful bit of functionality is the Linux signalfd, which
242is useful for faster signal handling (don't care). Kernel support for
243this will be probed at runtime, but your libc must contain the necessary
244wrapper. Glibc 2.7 and later should have this wrapper.
245
246EOF
247
248my $can_signalfd = have_inc "sys/signalfd.h";
249$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
250$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
251
252print <<EOF;
253
254*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
255
256
257Very rarely, people want to tweak EV even more, e.g. to exclude
258or include certain watcher types or backends. This can be done by adding
259extra -D options here, or via the EV_EXTRA_DEFS environment variable.
260
261For example, if you run into compile problems because of missing memory
262fences (or you just want extra performance), you can tell EV to not support
263smp and threads via -DEV_NO_THREADS.
264
265Normal persons just press enter.
266
267EOF
268
269$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
270
271print <<EOF;
272
273*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
274
275
276EOF
277
214my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 278my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
215 279
216WriteMakefile( 280WriteMakefile(
217 dist => { 281 dist => {
218 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 282 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
219 COMPRESS => 'gzip -9v', 283 COMPRESS => 'gzip -9v',
228 DEFINE => "$DEFINE", 292 DEFINE => "$DEFINE",
229 NAME => "EV", 293 NAME => "EV",
230 LIBS => [$LIBS], 294 LIBS => [$LIBS],
231 PREREQ_PM => { 295 PREREQ_PM => {
232 @anyevent, 296 @anyevent,
297 "common::sense" => 0,
233 }, 298 },
234 VERSION_FROM => "EV.pm", 299 VERSION_FROM => "EV.pm",
235 PM => { 300 PM => {
236 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 301 'EV.pm' => '$(INST_LIB)/EV.pm',
237 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 302 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
238 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 303 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
239 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 304 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
305 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
240 }, 306 },
307 MAN3PODS => {
308 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
309 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
310 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
311 },
241); 312);
242 313
243 314

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