1 |
root |
1.43 |
use 5.008002; |
2 |
root |
1.4 |
|
3 |
root |
1.37 |
use strict qw(vars subs); |
4 |
root |
1.7 |
use Config; |
5 |
root |
1.1 |
use ExtUtils::MakeMaker; |
6 |
|
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|
7 |
root |
1.55 |
sub have_inc($) { |
8 |
|
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scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth} |
9 |
|
|
} |
10 |
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|
11 |
root |
1.56 |
my $DEFINE; |
12 |
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|
13 |
root |
1.10 |
unless (-e "libev/ev_epoll.c") { |
14 |
|
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print <<EOF; |
15 |
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|
16 |
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*** |
17 |
|
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*** ERROR: libev is missing or damaged. If you used a CVS check-out of EV, |
18 |
|
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*** you also have to check-out the "libev" module from the same CVS |
19 |
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*** repository into the EV dir (i.e. EV/libev from outside). |
20 |
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*** |
21 |
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22 |
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EOF |
23 |
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exit 1; |
24 |
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} |
25 |
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|
26 |
root |
1.11 |
print <<EOF; |
27 |
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|
28 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
29 |
root |
1.11 |
|
30 |
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|
31 |
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Welcome to EV configuration. If you are in a hurry, just press return here |
32 |
|
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and hope for the best. The defaults should usually do. |
33 |
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|
34 |
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EOF |
35 |
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|
36 |
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if (prompt ("Skip further questions and use defaults (y/n)?", "y") =~ /[yY]/) { |
37 |
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$ENV{PERL_MM_USE_DEFAULT} = 1; |
38 |
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} |
39 |
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|
40 |
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print <<EOF; |
41 |
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|
42 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
43 |
root |
1.11 |
|
44 |
|
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|
45 |
root |
1.14 |
POSIX optionally offers support for a monotonic clock source. EV |
46 |
root |
1.45 |
can take advantage of this clock source to detect time jumps more |
47 |
root |
1.14 |
reliably. Unfortunately, some systems are bound to be broken, so you can |
48 |
|
|
disable this here: you can completely disable the detection and use of |
49 |
|
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the monotonic clock by answering 'n' here. Support for this clock type |
50 |
root |
1.29 |
will otherwise be autodetected at both compile- and runtime. (this setting |
51 |
|
|
currently affects the use of nanosleep over select as well). |
52 |
root |
1.11 |
|
53 |
|
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EOF |
54 |
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|
55 |
root |
1.56 |
unless (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) { |
56 |
|
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$DEFINE .= " -DEV_USE_MONOTONIC=0"; |
57 |
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} |
58 |
root |
1.11 |
|
59 |
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print <<EOF; |
60 |
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|
61 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
62 |
root |
1.11 |
|
63 |
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|
64 |
|
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POSIX optionally offers support for a (potentially) high-resolution |
65 |
|
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realtime clock interface. In a good implementation, using it is faster |
66 |
|
|
than the normal method of using gettimeofday. Unfortunately, this option |
67 |
root |
1.39 |
is also bound to be broken on some systems, and current EV versions do not |
68 |
root |
1.45 |
actually call gettimeofday very often, so it defaults to no. |
69 |
root |
1.11 |
|
70 |
|
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EOF |
71 |
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|
72 |
root |
1.39 |
$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/)); |
73 |
root |
1.11 |
|
74 |
|
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print <<EOF; |
75 |
|
|
|
76 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
77 |
root |
1.11 |
|
78 |
|
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|
79 |
root |
1.46 |
EV can use various backends with various portability issues. The select |
80 |
root |
1.19 |
backend is the most portable and makes for a good fallback, but it can be |
81 |
root |
1.22 |
limited to a low number of file descriptors and/or might not compile. If |
82 |
|
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you have problems with compiling ev_select.c, you might try to play around |
83 |
root |
1.19 |
with disabling it here, or forcing it to use the fd_set provided by your |
84 |
|
|
OS, via the next question. I highly recommend keeping it in. |
85 |
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|
86 |
|
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EOF |
87 |
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|
88 |
|
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if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) { |
89 |
root |
1.22 |
$DEFINE .= " -DEV_USE_SELECT=1"; |
90 |
root |
1.19 |
|
91 |
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print <<EOF; |
92 |
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|
93 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
94 |
root |
1.19 |
|
95 |
|
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|
96 |
|
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The select backend can operate in two modes. One uses the system-provided |
97 |
|
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fd_set and is usually limited to 1024 file descriptors (64 on windows), |
98 |
|
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the other requires your header files to define NFDBITS and declare a |
99 |
|
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suitable fd_mask type. If you run into problems compiling ev_select.c, you |
100 |
|
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can try forcing the use of the system fd_set here. |
101 |
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|
102 |
|
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EOF |
103 |
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|
104 |
|
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if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) { |
105 |
|
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$DEFINE .= " -DEV_SELECT_USE_FD_SET"; |
106 |
root |
1.55 |
} |
107 |
root |
1.22 |
} else { |
108 |
|
|
$DEFINE .= " -DEV_USE_SELECT=0"; |
109 |
root |
1.55 |
} |
110 |
root |
1.19 |
|
111 |
|
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print <<EOF; |
112 |
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|
|
113 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
114 |
root |
1.19 |
|
115 |
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|
116 |
|
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The second very portable backend is poll(2). It does not exist on windows |
117 |
|
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and various versions of Mac OS X (and on the other versions it simply |
118 |
|
|
doesn't work), but works basically everywhere else. It is recommended to use |
119 |
|
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the default here unless you run into compile problems in ev_poll.c. |
120 |
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|
121 |
|
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EOF |
122 |
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|
123 |
root |
1.55 |
$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/)); |
124 |
root |
1.19 |
|
125 |
|
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print <<EOF; |
126 |
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|
|
127 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
128 |
root |
1.19 |
|
129 |
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|
130 |
root |
1.24 |
Select and poll make it hard to write efficient servers, especially if the |
131 |
|
|
number of active connections is much lower than the watched ones. GNU/Linux |
132 |
|
|
systems have a more scalable method called "epoll", which EV can use. For |
133 |
|
|
this to work, both your kernel and glibc have to support epoll, but if you |
134 |
|
|
can compile it, the detection will be done at runtime, and EV will safely |
135 |
|
|
fall back to using select when epoll isn't available. If unsure, accept |
136 |
|
|
the default. |
137 |
root |
1.11 |
|
138 |
|
|
EOF |
139 |
|
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|
140 |
root |
1.55 |
my $can_epoll = have_inc "sys/epoll.h"; |
141 |
root |
1.37 |
$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL}; |
142 |
|
|
$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/)); |
143 |
root |
1.15 |
|
144 |
|
|
print <<EOF; |
145 |
|
|
|
146 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
147 |
root |
1.15 |
|
148 |
|
|
|
149 |
root |
1.23 |
Similarly to the epoll backend above, EV can take advantage of kqueue on |
150 |
|
|
many BSD systems. Support for kqueue will be detected at runtime, with a |
151 |
|
|
safe fallback to other methods when it cannot be used. |
152 |
|
|
|
153 |
root |
1.31 |
Note that kqueue is broken on most operating systems, so by default it |
154 |
|
|
won't be used on many platforms, but you can still create your own event |
155 |
root |
1.40 |
loop with kqueue backend if you ask specifically for it. |
156 |
root |
1.31 |
|
157 |
|
|
Here is what we know: |
158 |
root |
1.23 |
|
159 |
root |
1.45 |
NetBSD: partially working in at least 3.1 and later. Yeah! :) |
160 |
|
|
FreeBSD: broken on at least 6.2-STABLE, spotty in later versions, |
161 |
root |
1.28 |
sockets *likely* work, ptys definitely don't. |
162 |
root |
1.23 |
OpenBSD: reports indicate that it likely doesn't work |
163 |
|
|
(similar problems as on FreeBSD). |
164 |
root |
1.45 |
OS X: completely, utterly broken on at least <= 10.6. |
165 |
root |
1.11 |
|
166 |
root |
1.15 |
EOF |
167 |
|
|
|
168 |
root |
1.55 |
my $can_kqueue = have_inc "sys/event.h"; |
169 |
root |
1.37 |
$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE}; |
170 |
root |
1.23 |
$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/)); |
171 |
root |
1.11 |
|
172 |
|
|
print <<EOF; |
173 |
|
|
|
174 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
175 |
root |
1.11 |
|
176 |
|
|
|
177 |
root |
1.21 |
Similarly to the kqueue backend above, EV can take advantage of the |
178 |
root |
1.26 |
solaris 10 event port interface. Support for event ports will be detected |
179 |
|
|
at runtime, with a safe fallback to other methods when it cannot be used. |
180 |
root |
1.21 |
|
181 |
|
|
EOF |
182 |
|
|
|
183 |
root |
1.55 |
$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/)); |
184 |
root |
1.21 |
|
185 |
|
|
print <<EOF; |
186 |
|
|
|
187 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
188 |
root |
1.21 |
|
189 |
|
|
|
190 |
root |
1.11 |
EV needs the functions pthread_atfork and clock_gettime. On most systems |
191 |
root |
1.15 |
you need some special libraries for this (such as -lrt and -lpthread). You |
192 |
root |
1.23 |
can specify additional libraries to provide these calls (and any other |
193 |
|
|
required by EV) now, or accept the default. |
194 |
root |
1.11 |
|
195 |
root |
1.53 |
On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function |
196 |
|
|
to avoid the dependency on libpthread, and directly uses the clock_gettime |
197 |
|
|
syscall to avoid a dependency on librt. |
198 |
|
|
|
199 |
root |
1.11 |
EOF |
200 |
|
|
|
201 |
root |
1.38 |
my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : ""; |
202 |
root |
1.53 |
my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt"; |
203 |
|
|
my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs"; |
204 |
|
|
$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS; |
205 |
root |
1.15 |
|
206 |
root |
1.11 |
|
207 |
|
|
print <<EOF; |
208 |
|
|
|
209 |
root |
1.22 |
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
210 |
root |
1.11 |
|
211 |
|
|
|
212 |
root |
1.25 |
A backend of a different kind is the Linux inotify(7) interface, which can |
213 |
|
|
be used to speed up (and reduce resource consumption) of stat watchers. If |
214 |
root |
1.40 |
you have the include file and libc support for it, it is usually a good |
215 |
|
|
idea to enable it, as kernel availability is detected at runtime. |
216 |
root |
1.25 |
|
217 |
|
|
EOF |
218 |
|
|
|
219 |
root |
1.55 |
my $can_inotify = have_inc "sys/inotify.h"; |
220 |
root |
1.37 |
$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY}; |
221 |
root |
1.25 |
$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/)); |
222 |
|
|
|
223 |
|
|
print <<EOF; |
224 |
|
|
|
225 |
|
|
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
226 |
|
|
|
227 |
|
|
|
228 |
root |
1.36 |
Another useful bit of functionality is the Linux eventfd, which is useful |
229 |
|
|
for faster signal handling (don't care) and intra-thread communications |
230 |
|
|
(more relevant). Kernel support for this will be probed at runtime, but |
231 |
|
|
your libc must contain the necessary wrapper. Glibc 2.7 and later should |
232 |
|
|
have this wrapper. |
233 |
|
|
|
234 |
|
|
EOF |
235 |
|
|
|
236 |
root |
1.55 |
my $can_eventfd = have_inc "sys/eventfd.h"; |
237 |
root |
1.37 |
$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 |
root |
1.36 |
|
240 |
|
|
print <<EOF; |
241 |
|
|
|
242 |
|
|
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
243 |
|
|
|
244 |
|
|
|
245 |
root |
1.42 |
Another sometimes useful bit of functionality is the Linux signalfd, which |
246 |
|
|
is useful for faster signal handling (don't care). Kernel support for |
247 |
|
|
this will be probed at runtime, but your libc must contain the necessary |
248 |
root |
1.44 |
wrapper. Glibc 2.7 and later should have this wrapper. |
249 |
root |
1.42 |
|
250 |
|
|
EOF |
251 |
|
|
|
252 |
root |
1.55 |
my $can_signalfd = have_inc "sys/signalfd.h"; |
253 |
root |
1.42 |
$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 |
|
|
|
256 |
|
|
print <<EOF; |
257 |
|
|
|
258 |
|
|
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
259 |
|
|
|
260 |
|
|
|
261 |
root |
1.48 |
Very rarely, people want to tweak EV even more, e.g. to exclude |
262 |
root |
1.52 |
or include certain watcher types or backends. This can be done by adding |
263 |
root |
1.48 |
extra -D options here, or via the EV_EXTRA_DEFS environment variable. |
264 |
root |
1.52 |
|
265 |
|
|
For example, if you run into compile problems because of missing memory |
266 |
|
|
fences (or you just want extra performance), you can tell EV to not support |
267 |
|
|
smp and threads via -DEV_NO_THREADS. |
268 |
|
|
|
269 |
root |
1.48 |
Normal persons just press enter. |
270 |
|
|
|
271 |
|
|
EOF |
272 |
|
|
|
273 |
root |
1.49 |
$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}"; |
274 |
root |
1.48 |
|
275 |
|
|
print <<EOF; |
276 |
|
|
|
277 |
|
|
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** |
278 |
|
|
|
279 |
|
|
|
280 |
root |
1.11 |
EOF |
281 |
|
|
|
282 |
root |
1.47 |
my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : (); |
283 |
root |
1.20 |
|
284 |
root |
1.1 |
WriteMakefile( |
285 |
|
|
dist => { |
286 |
root |
1.2 |
PREOP => 'pod2text EV.pm | tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;', |
287 |
root |
1.1 |
COMPRESS => 'gzip -9v', |
288 |
|
|
SUFFIX => '.gz', |
289 |
|
|
}, |
290 |
root |
1.10 |
depend => { |
291 |
root |
1.13 |
"EV.c" => "EV/EVAPI.h " |
292 |
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 " |
293 |
root |
1.30 |
. "libev/ev_vars.h libev/ev_wrap.h", |
294 |
root |
1.10 |
}, |
295 |
root |
1.8 |
INC => "-Ilibev", |
296 |
root |
1.11 |
DEFINE => "$DEFINE", |
297 |
root |
1.2 |
NAME => "EV", |
298 |
root |
1.11 |
LIBS => [$LIBS], |
299 |
root |
1.20 |
PREREQ_PM => { |
300 |
|
|
@anyevent, |
301 |
root |
1.41 |
"common::sense" => 0, |
302 |
root |
1.20 |
}, |
303 |
root |
1.2 |
VERSION_FROM => "EV.pm", |
304 |
root |
1.5 |
PM => { |
305 |
root |
1.54 |
'EV.pm' => '$(INST_LIB)/EV.pm', |
306 |
|
|
'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h', |
307 |
|
|
'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm', |
308 |
|
|
'libev/ev.h' => '$(INST_LIB)/EV/ev.h', |
309 |
|
|
'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod', |
310 |
root |
1.5 |
}, |
311 |
root |
1.34 |
MAN3PODS => { |
312 |
|
|
'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)', |
313 |
|
|
'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)', |
314 |
root |
1.35 |
'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)', |
315 |
root |
1.34 |
}, |
316 |
root |
1.1 |
); |
317 |
|
|
|
318 |
root |
1.6 |
|