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Comparing EV/Makefile.PL (file contents):
Revision 1.32 by root, Sun Apr 6 09:53:16 2008 UTC vs.
Revision 1.56 by root, Sat Sep 6 19:03:28 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}
10
11my $DEFINE;
5 12
6unless (-e "libev/ev_epoll.c") { 13unless (-e "libev/ev_epoll.c") {
7 print <<EOF; 14 print <<EOF;
8 15
9*** 16***
34 41
35*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 42*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
36 43
37 44
38POSIX optionally offers support for a monotonic clock source. EV 45POSIX optionally offers support for a monotonic clock source. EV
39can take advantage of this clock source to detect time jumps 46can take advantage of this clock source to detect time jumps more
40reliably. Unfortunately, some systems are bound to be broken, so you can 47reliably. Unfortunately, some systems are bound to be broken, so you can
41disable this here: you can completely disable the detection and use of 48disable this here: you can completely disable the detection and use of
42the monotonic clock by answering 'n' here. Support for this clock type 49the monotonic clock by answering 'n' here. Support for this clock type
43will otherwise be autodetected at both compile- and runtime. (this setting 50will otherwise be autodetected at both compile- and runtime. (this setting
44currently affects the use of nanosleep over select as well). 51currently affects the use of nanosleep over select as well).
45 52
46EOF 53EOF
47 54
48$DEFINE .= " -DEV_USE_MONOTONIC=" . (0 + (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/)); 55unless (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {
56 $DEFINE .= " -DEV_USE_MONOTONIC=0";
57}
49 58
50print <<EOF; 59print <<EOF;
51 60
52*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 61*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
53 62
54 63
55POSIX optionally offers support for a (potentially) high-resolution 64POSIX optionally offers support for a (potentially) high-resolution
56realtime clock interface. In a good implementation, using it is faster 65realtime clock interface. In a good implementation, using it is faster
57than the normal method of using gettimeofday. Unfortunately, this option 66than the normal method of using gettimeofday. Unfortunately, this option
58is also bound to be broken on some systems, so you can disable use and 67is also bound to be broken on some systems, and current EV versions do not
59probing of this feature altogether here. Otherwise support for this clock 68actually call gettimeofday very often, so it defaults to no.
60type will be autodetected at compiletime.
61 69
62EOF 70EOF
63 71
64$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "y") =~ /[yY]/)); 72$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
65 73
66print <<EOF; 74print <<EOF;
67 75
68*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 76*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
69 77
70 78
71Another useful bit of functionality is the Linux eventfd, which is useful
72for faster signal handling (don't care) and intra-thread communications
73(mostly useful for embedding). Kernel support for this will be probed at
74runtime, but your libc must contain the necessary wrapper. Glibc 2.7 and
75later should have this wrapper.
76
77EOF
78
79$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", (-e "/usr/include/sys/eventfd.h") ? "y" : "n") =~ /[yY]/));
80
81print <<EOF;
82
83*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
84
85
86EV can use various backends with various portability issue. The select 79EV can use various backends with various portability issues. The select
87backend is the most portable and makes for a good fallback, but it can be 80backend is the most portable and makes for a good fallback, but it can be
88limited to a low number of file descriptors and/or might not compile. If 81limited to a low number of file descriptors and/or might not compile. If
89you have problems with compiling ev_select.c, you might try to play around 82you have problems with compiling ev_select.c, you might try to play around
90with disabling it here, or forcing it to use the fd_set provided by your 83with disabling it here, or forcing it to use the fd_set provided by your
91OS, via the next question. I highly recommend keeping it in. 84OS, via the next question. I highly recommend keeping it in.
108 101
109EOF 102EOF
110 103
111 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) { 104 if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
112 $DEFINE .= " -DEV_SELECT_USE_FD_SET"; 105 $DEFINE .= " -DEV_SELECT_USE_FD_SET";
113 } 106 }
114} else { 107} else {
115 $DEFINE .= " -DEV_USE_SELECT=0"; 108 $DEFINE .= " -DEV_USE_SELECT=0";
116} 109}
117 110
118print <<EOF; 111print <<EOF;
119 112
120*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 113*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
121 114
125doesn't work), but works basically everywhere else. It is recommended to use 118doesn't work), but works basically everywhere else. It is recommended to use
126the default here unless you run into compile problems in ev_poll.c. 119the default here unless you run into compile problems in ev_poll.c.
127 120
128EOF 121EOF
129 122
130$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (-e "/usr/include/poll.h") ? "y" : "n") =~ /[yY]/)); 123$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/));
131 124
132print <<EOF; 125print <<EOF;
133 126
134*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 127*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
135 128
142fall back to using select when epoll isn't available. If unsure, accept 135fall back to using select when epoll isn't available. If unsure, accept
143the default. 136the default.
144 137
145EOF 138EOF
146 139
140my $can_epoll = have_inc "sys/epoll.h";
141$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
147$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", (-e "/usr/include/sys/epoll.h") ? "y" : "n") =~ /[yY]/)); 142$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
148 143
149print <<EOF; 144print <<EOF;
150 145
151*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 146*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
152 147
155many BSD systems. Support for kqueue will be detected at runtime, with a 150many BSD systems. Support for kqueue will be detected at runtime, with a
156safe fallback to other methods when it cannot be used. 151safe fallback to other methods when it cannot be used.
157 152
158Note that kqueue is broken on most operating systems, so by default it 153Note that kqueue is broken on most operating systems, so by default it
159won't be used on many platforms, but you can still create your own event 154won't be used on many platforms, but you can still create your own event
160loop with qkueue backend. 155loop with kqueue backend if you ask specifically for it.
161 156
162Here is what we know: 157Here is what we know:
163 158
164NetBSD: partially working in at least 3.1. Yeah! :) 159NetBSD: partially working in at least 3.1 and later. Yeah! :)
165FreeBSD: broken on at least 6.2-STABLE, 160FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
166 sockets *likely* work, ptys definitely don't. 161 sockets *likely* work, ptys definitely don't.
167OpenBSD: reports indicate that it likely doesn't work 162OpenBSD: reports indicate that it likely doesn't work
168 (similar problems as on FreeBSD). 163 (similar problems as on FreeBSD).
169OS X: completely, utterly broken on at least < 10.5. 164OS X: completely, utterly broken on at least <= 10.6.
170 165
171EOF 166EOF
172 167
173my $can_kqueue = -e "/usr/include/sys/event.h"; 168my $can_kqueue = have_inc "sys/event.h";
174 169$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
175$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); 170$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
176 171
177print <<EOF; 172print <<EOF;
178 173
179*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 174*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
183solaris 10 event port interface. Support for event ports will be detected 178solaris 10 event port interface. Support for event ports will be detected
184at runtime, with a safe fallback to other methods when it cannot be used. 179at runtime, with a safe fallback to other methods when it cannot be used.
185 180
186EOF 181EOF
187 182
188$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (-e "/usr/include/sys/port.h") ? "y" : "n") =~ /[yY]/)); 183$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/));
189 184
190print <<EOF; 185print <<EOF;
191 186
192*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 187*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
193 188
195EV needs the functions pthread_atfork and clock_gettime. On most systems 190EV needs the functions pthread_atfork and clock_gettime. On most systems
196you need some special libraries for this (such as -lrt and -lpthread). You 191you need some special libraries for this (such as -lrt and -lpthread). You
197can specify additional libraries to provide these calls (and any other 192can specify additional libraries to provide these calls (and any other
198required by EV) now, or accept the default. 193required by EV) now, or accept the default.
199 194
200EOF 195On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
196to avoid the dependency on libpthread, and directly uses the clock_gettime
197syscall to avoid a dependency on librt.
201 198
199EOF
200
202$SOLARIS_LIBS = $^O =~ /solaris/ ? " -lsocket -lnsl" : ""; 201my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
203 202my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
203my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
204$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "-lpthread -lrt$SOLARIS_LIBS"; 204$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
205 205
206 206
207print <<EOF; 207print <<EOF;
208 208
209*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 209*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
210 210
211 211
212A backend of a different kind is the Linux inotify(7) interface, which can 212A backend of a different kind is the Linux inotify(7) interface, which can
213be used to speed up (and reduce resource consumption) of stat watchers. If 213be used to speed up (and reduce resource consumption) of stat watchers. If
214you have it, it is usually a good idea to enable it. 214you have the include file and libc support for it, it is usually a good
215idea to enable it, as kernel availability is detected at runtime.
215 216
216EOF 217EOF
217 218
218my $can_inotify = -e "/usr/include/sys/inotify.h"; 219my $can_inotify = have_inc "sys/inotify.h";
219 220$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
220$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); 221$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
221 222
222print <<EOF; 223print <<EOF;
223 224
224*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 225*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
225 226
226 227
227EOF 228Another useful bit of functionality is the Linux eventfd, which is useful
229for faster signal handling (don't care) and intra-thread communications
230(more relevant). Kernel support for this will be probed at runtime, but
231your libc must contain the necessary wrapper. Glibc 2.7 and later should
232have this wrapper.
228 233
234EOF
235
236my $can_eventfd = have_inc "sys/eventfd.h";
237$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
238$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
239
240print <<EOF;
241
242*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
243
244
245Another sometimes useful bit of functionality is the Linux signalfd, which
246is useful for faster signal handling (don't care). Kernel support for
247this will be probed at runtime, but your libc must contain the necessary
248wrapper. Glibc 2.7 and later should have this wrapper.
249
250EOF
251
252my $can_signalfd = have_inc "sys/signalfd.h";
253$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
254$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
255
256print <<EOF;
257
258*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
259
260
261Very rarely, people want to tweak EV even more, e.g. to exclude
262or include certain watcher types or backends. This can be done by adding
263extra -D options here, or via the EV_EXTRA_DEFS environment variable.
264
265For example, if you run into compile problems because of missing memory
266fences (or you just want extra performance), you can tell EV to not support
267smp and threads via -DEV_NO_THREADS.
268
269Normal persons just press enter.
270
271EOF
272
273$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
274
275print <<EOF;
276
277*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
278
279
280EOF
281
229my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 282my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
230 283
231WriteMakefile( 284WriteMakefile(
232 dist => { 285 dist => {
233 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 286 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
234 COMPRESS => 'gzip -9v', 287 COMPRESS => 'gzip -9v',
243 DEFINE => "$DEFINE", 296 DEFINE => "$DEFINE",
244 NAME => "EV", 297 NAME => "EV",
245 LIBS => [$LIBS], 298 LIBS => [$LIBS],
246 PREREQ_PM => { 299 PREREQ_PM => {
247 @anyevent, 300 @anyevent,
301 "common::sense" => 0,
248 }, 302 },
249 VERSION_FROM => "EV.pm", 303 VERSION_FROM => "EV.pm",
250 PM => { 304 PM => {
251 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 305 'EV.pm' => '$(INST_LIB)/EV.pm',
252 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 306 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
253 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 307 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
254 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 308 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
309 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
255 }, 310 },
311 MAN3PODS => {
312 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
313 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
314 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
315 },
256); 316);
257 317
258 318

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