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Comparing EV/Makefile.PL (file contents):
Revision 1.38 by root, Thu Nov 20 00:35:16 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 strict qw(vars subs);
4use Config; 4use Config;
5use ExtUtils::MakeMaker; 5use ExtUtils::MakeMaker;
6
7sub have_inc($) {
8 scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth}
9}
10
11my $DEFINE;
6 12
7unless (-e "libev/ev_epoll.c") { 13unless (-e "libev/ev_epoll.c") {
8 print <<EOF; 14 print <<EOF;
9 15
10*** 16***
… …
35 41
36*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 42*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
37 43
38 44
39POSIX optionally offers support for a monotonic clock source. EV 45POSIX optionally offers support for a monotonic clock source. EV
40can take advantage of this clock source to detect time jumps 46can take advantage of this clock source to detect time jumps more
41reliably. Unfortunately, some systems are bound to be broken, so you can 47reliably. Unfortunately, some systems are bound to be broken, so you can
42disable this here: you can completely disable the detection and use of 48disable this here: you can completely disable the detection and use of
43the monotonic clock by answering 'n' here. Support for this clock type 49the monotonic clock by answering 'n' here. Support for this clock type
44will otherwise be autodetected at both compile- and runtime. (this setting 50will otherwise be autodetected at both compile- and runtime. (this setting
45currently affects the use of nanosleep over select as well). 51currently affects the use of nanosleep over select as well).
46 52
47EOF 53EOF
48 54
49my $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 $DEFINE .= " -DEV_USE_MONOTONIC=0";
57}
50 58
51print <<EOF; 59print <<EOF;
52 60
53*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 61*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
54 62
55 63
56POSIX optionally offers support for a (potentially) high-resolution 64POSIX optionally offers support for a (potentially) high-resolution
57realtime clock interface. In a good implementation, using it is faster 65realtime clock interface. In a good implementation, using it is faster
58than the normal method of using gettimeofday. Unfortunately, this option 66than the normal method of using gettimeofday. Unfortunately, this option
59is also bound to be broken on some systems, so you can disable use and 67is also bound to be broken on some systems, and current EV versions do not
60probing of this feature altogether here. Otherwise support for this clock 68actually call gettimeofday very often, so it defaults to no.
61type will be autodetected at compiletime.
62 69
63EOF 70EOF
64 71
65$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]/));
66 73
67print <<EOF; 74print <<EOF;
68 75
69*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 76*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
70 77
71 78
72EV can use various backends with various portability issue. The select 79EV 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 80backend 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 81limited 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 82you 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 83with 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. 84OS, via the next question. I highly recommend keeping it in.
… …
94 101
95EOF 102EOF
96 103
97 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]/) {
98 $DEFINE .= " -DEV_SELECT_USE_FD_SET"; 105 $DEFINE .= " -DEV_SELECT_USE_FD_SET";
99 } 106 }
100} else { 107} else {
101 $DEFINE .= " -DEV_USE_SELECT=0"; 108 $DEFINE .= " -DEV_USE_SELECT=0";
102} 109}
103 110
104print <<EOF; 111print <<EOF;
105 112
106*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 113*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
107 114
… …
111doesn't work), but works basically everywhere else. It is recommended to use 118doesn't work), but works basically everywhere else. It is recommended to use
112the default here unless you run into compile problems in ev_poll.c. 119the default here unless you run into compile problems in ev_poll.c.
113 120
114EOF 121EOF
115 122
116$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]/));
117 124
118print <<EOF; 125print <<EOF;
119 126
120*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 127*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
121 128
… …
128fall 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
129the default. 136the default.
130 137
131EOF 138EOF
132 139
133my $can_epoll = -e "/usr/include/sys/epoll.h"; 140my $can_epoll = have_inc "sys/epoll.h";
134$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL}; 141$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
135$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/)); 142$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
136 143
137print <<EOF; 144print <<EOF;
138 145
… …
143many 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
144safe fallback to other methods when it cannot be used. 151safe fallback to other methods when it cannot be used.
145 152
146Note 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
147won'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
148loop with kqueue backend. 155loop with kqueue backend if you ask specifically for it.
149 156
150Here is what we know: 157Here is what we know:
151 158
152NetBSD: partially working in at least 3.1. Yeah! :) 159NetBSD: partially working in at least 3.1 and later. Yeah! :)
153FreeBSD: broken on at least 6.2-STABLE, 160FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
154 sockets *likely* work, ptys definitely don't. 161 sockets *likely* work, ptys definitely don't.
155OpenBSD: reports indicate that it likely doesn't work 162OpenBSD: reports indicate that it likely doesn't work
156 (similar problems as on FreeBSD). 163 (similar problems as on FreeBSD).
157OS X: completely, utterly broken on at least < 10.5. 164OS X: completely, utterly broken on at least <= 10.6.
158 165
159EOF 166EOF
160 167
161my $can_kqueue = -e "/usr/include/sys/event.h"; 168my $can_kqueue = have_inc "sys/event.h";
162$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE}; 169$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
163$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)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
164 171
165print <<EOF; 172print <<EOF;
166 173
… …
171solaris 10 event port interface. Support for event ports will be detected 178solaris 10 event port interface. Support for event ports will be detected
172at runtime, with a safe fallback to other methods when it cannot be used. 179at runtime, with a safe fallback to other methods when it cannot be used.
173 180
174EOF 181EOF
175 182
176$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]/));
177 184
178print <<EOF; 185print <<EOF;
179 186
180*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 187*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
181 188
… …
183EV needs the functions pthread_atfork and clock_gettime. On most systems 190EV needs the functions pthread_atfork and clock_gettime. On most systems
184you 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
185can specify additional libraries to provide these calls (and any other 192can specify additional libraries to provide these calls (and any other
186required by EV) now, or accept the default. 193required by EV) now, or accept the default.
187 194
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.
198
188EOF 199EOF
189 200
190my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : ""; 201my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
191my $librt = $^O =~ /linux/i ? "-lpthread" : "-lpthread -lrt"; 202my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
203my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
192my $LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", "$librt $solaris_libs"; 204$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
193 205
194 206
195print <<EOF; 207print <<EOF;
196 208
197*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 209*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
198 210
199 211
200A 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
201be 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
202you 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.
203 216
204EOF 217EOF
205 218
206my $can_inotify = -e "/usr/include/sys/inotify.h"; 219my $can_inotify = have_inc "sys/inotify.h";
207$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY}; 220$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
208$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]/));
209 222
210print <<EOF; 223print <<EOF;
211 224
… …
218your libc must contain the necessary wrapper. Glibc 2.7 and later should 231your libc must contain the necessary wrapper. Glibc 2.7 and later should
219have this wrapper. 232have this wrapper.
220 233
221EOF 234EOF
222 235
223my $can_eventfd = -e "/usr/include/sys/eventfd.h"; 236my $can_eventfd = have_inc "sys/eventfd.h";
224$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD}; 237$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
225$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/)); 238$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
226 239
227print <<EOF; 240print <<EOF;
228 241
229*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** 242*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
230 243
231 244
232EOF 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.
233 249
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
234my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 2.6 } ? (AnyEvent => 2.6) : (); 282my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
235 283
236WriteMakefile( 284WriteMakefile(
237 dist => { 285 dist => {
238 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', 286 PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
239 COMPRESS => 'gzip -9v', 287 COMPRESS => 'gzip -9v',
… …
248 DEFINE => "$DEFINE", 296 DEFINE => "$DEFINE",
249 NAME => "EV", 297 NAME => "EV",
250 LIBS => [$LIBS], 298 LIBS => [$LIBS],
251 PREREQ_PM => { 299 PREREQ_PM => {
252 @anyevent, 300 @anyevent,
301 "common::sense" => 0,
253 }, 302 },
254 VERSION_FROM => "EV.pm", 303 VERSION_FROM => "EV.pm",
255 PM => { 304 PM => {
256 'EV.pm' => '$(INST_LIBDIR)/EV.pm', 305 'EV.pm' => '$(INST_LIB)/EV.pm',
257 'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h', 306 'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
258 'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm', 307 'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
259 'libev/ev.h' => '$(INST_LIBDIR)/EV/ev.h', 308 'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
260 'libev/ev.pod' => '$(INST_LIBDIR)/EV/libev.pod', 309 'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
261 }, 310 },
262 MAN3PODS => { 311 MAN3PODS => {
263 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)', 312 'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
264 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)', 313 'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
265 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)', 314 'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',

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