[ViewVC] Diff of: cvs/EV/Makefile.PL

Comparing EV/Makefile.PL (file contents):
Revision 1.5 by root, Mon Oct 29 08:48:07 2007 UTC vs.
Revision 1.58 by root, Sat Jun 22 15:50:36 2019 UTC

1	use 5.006;	1	use strict qw(vars subs);
2		2	use Canary::Stability EV => 1, 5.008002;
		3	use Config;
3	use ExtUtils::MakeMaker;	4	use ExtUtils::MakeMaker;
4		5
		6	sub have_inc($) {
		7	scalar grep -r "$_/$_[0]", $Config{usrinc}, split / /, $Config{incpth}
		8	}
		9
		10	my $DEFINE;
		11
		12	unless (-e "libev/ev_epoll.c") {
5	print <<EOF;	13	print <<EOF;
6		14
7	***	15	***
8	*** You need to install libevent (http://monkey.org/~provos/libevent/) separately	16	*** ERROR: libev is missing or damaged. If you used a CVS check-out of EV,
9	*** first in a way so that the Makefile.PL can find both -levent and the event.h	17	*** you also have to check-out the "libev" module from the same CVS
10	*** and evdns.h include files.	18	*** repository into the EV dir (i.e. EV/libev from outside).
11	***	19	***
12	*** Version 1.3e or higher is recommended, but older 1.3 versions likely work too.
13	***
14		20
15	EOF	21	EOF
		22	exit 1;
		23	}
		24
		25	print <<EOF;
		26
		27	* * * * * * * * * * * * * * * * * *
		28
		29
		30	Welcome to EV configuration. If you are in a hurry, just press return here
		31	and hope for the best. The defaults should usually do.
		32
		33	EOF
		34
		35	if (prompt ("Skip further questions and use defaults (y/n)?", "y") =~ /[yY]/) {
		36	$ENV{PERL_MM_USE_DEFAULT} = 1;
		37	}
		38
		39	print <<EOF;
		40
		41	* * * * * * * * * * * * * * * * * *
		42
		43
		44	POSIX optionally offers support for a monotonic clock source. EV
		45	can take advantage of this clock source to detect time jumps more
		46	reliably. Unfortunately, some systems are bound to be broken, so you can
		47	disable this here: you can completely disable the detection and use of
		48	the monotonic clock by answering 'n' here. Support for this clock type
		49	will otherwise be autodetected at both compile- and runtime. (this setting
		50	currently affects the use of nanosleep over select as well).
		51
		52	EOF
		53
		54	unless (prompt ("Enable optional support for CLOCK_MONOTONIC (y/n)?", "y") =~ /[yY]/) {
		55	$DEFINE .= " -DEV_USE_MONOTONIC=0";
		56	}
		57
		58	print <<EOF;
		59
		60	* * * * * * * * * * * * * * * * * *
		61
		62
		63	POSIX optionally offers support for a (potentially) high-resolution
		64	realtime clock interface. In a good implementation, using it is faster
		65	than the normal method of using gettimeofday. Unfortunately, this option
		66	is also bound to be broken on some systems, and current EV versions do not
		67	actually call gettimeofday very often, so it defaults to no.
		68
		69	EOF
		70
		71	$DEFINE .= " -DEV_USE_REALTIME=" . (0 + (prompt ("Prefer clock_gettime (CLOCK_REALTIME) over gettimeofday (y/n)?", "n") =~ /[yY]/));
		72
		73	print <<EOF;
		74
		75	* * * * * * * * * * * * * * * * * *
		76
		77
		78	EV can use various backends with various portability issues. The select
		79	backend is the most portable and makes for a good fallback, but it can be
		80	limited to a low number of file descriptors and/or might not compile. If
		81	you have problems with compiling ev_select.c, you might try to play around
		82	with disabling it here, or forcing it to use the fd_set provided by your
		83	OS, via the next question. I highly recommend keeping it in.
		84
		85	EOF
		86
		87	if (prompt ("Enable select backend (y/n)?", "y") =~ /[yY]/) {
		88	$DEFINE .= " -DEV_USE_SELECT=1";
		89
		90	print <<EOF;
		91
		92	* * * * * * * * * * * * * * * * * *
		93
		94
		95	The select backend can operate in two modes. One uses the system-provided
		96	fd_set and is usually limited to 1024 file descriptors (64 on windows),
		97	the other requires your header files to define NFDBITS and declare a
		98	suitable fd_mask type. If you run into problems compiling ev_select.c, you
		99	can try forcing the use of the system fd_set here.
		100
		101	EOF
		102
		103	if (prompt ("Force use of system fd_set for select backend (y/n)?", "n") =~ /[yY]/) {
		104	$DEFINE .= " -DEV_SELECT_USE_FD_SET";
		105	}
		106	} else {
		107	$DEFINE .= " -DEV_USE_SELECT=0";
		108	}
		109
		110	print <<EOF;
		111
		112	* * * * * * * * * * * * * * * * * *
		113
		114
		115	The second very portable backend is poll(2). It does not exist on windows
		116	and various versions of Mac OS X (and on the other versions it simply
		117	doesn't work), but works basically everywhere else. It is recommended to use
		118	the default here unless you run into compile problems in ev_poll.c.
		119
		120	EOF
		121
		122	$DEFINE .= " -DEV_USE_POLL=" . (0 + (prompt ("Enable poll backend (y/n)?", (have_inc "poll.h") ? "y" : "n") =~ /[yY]/));
		123
		124	print <<EOF;
		125
		126	* * * * * * * * * * * * * * * * * *
		127
		128
		129	Select and poll make it hard to write efficient servers, especially if the
		130	number of active connections is much lower than the watched ones. GNU/Linux
		131	systems have a more scalable method called "epoll", which EV can use. For
		132	this to work, both your kernel and glibc have to support epoll, but if you
		133	can compile it, the detection will be done at runtime, and EV will safely
		134	fall back to using select when epoll isn't available. If unsure, accept
		135	the default.
		136
		137	EOF
		138
		139	my $can_epoll = have_inc "sys/epoll.h";
		140	$can_epoll = $ENV{EV_EPOLL} if exists $ENV{EV_EPOLL};
		141	$DEFINE .= " -DEV_USE_EPOLL=" . (0 + (prompt ("Enable epoll backend (y/n)?", $can_epoll ? "y" : "n") =~ /[yY]/));
		142
		143	print <<EOF;
		144
		145	* * * * * * * * * * * * * * * * * *
		146
		147
		148	Linux 4.18 introduced another event polling interface, this time using
		149	the Linux AIO API. While this API is far superior to epoll and almost
		150	rivals kqueue, it also suffers from the same issues as kqueue typically
		151	does: only a subset of file types are supported (as of 4.19, I have seen
		152	eventfd, pipes, sockets files and some devices, but no ttys). It also
		153	is subject arbitrary system-wide limits imposed on it. Therefore, this
		154	backend is not used by default, even when it is compiled in, and you have
		155	to request it explicitly, e.g. with LIBEV_FLAGS=64. If unsure, accept the
		156	default.
		157
		158	EOF
		159
		160	my $can_linuxaio = have_inc "linux/aio_abi.h";
		161	$can_linuxaio or die;
		162	$can_linuxaio = $ENV{EV_LINUXAIO} if exists $ENV{EV_LINUXAIO};
		163	$DEFINE .= " -DEV_USE_LINUXAIO=" . (0 + (prompt ("Enable linux aio backend (y/n)?", $can_linuxaio ? "y" : "n") =~ /[yY]/));
		164
		165	print <<EOF;
		166
		167	* * * * * * * * * * * * * * * * * *
		168
		169
		170	Similarly to the epoll backend above, EV can take advantage of kqueue on
		171	many BSD systems. Support for kqueue will be detected at runtime, with a
		172	safe fallback to other methods when it cannot be used.
		173
		174	Note that kqueue is broken on most operating systems, so by default it
		175	won't be used on many platforms, but you can still create your own event
		176	loop with kqueue backend if you ask specifically for it.
		177
		178	Here is what we know:
		179
		180	NetBSD: partially working in at least 3.1 and later. Yeah! :)
		181	FreeBSD: broken on at least 6.2-STABLE, spotty in later versions,
		182	sockets likely work, ptys definitely don't.
		183	OpenBSD: reports indicate that it likely doesn't work
		184	(similar problems as on FreeBSD).
		185	OS X: completely, utterly broken on at least <= 10.6.
		186
		187	EOF
		188
		189	my $can_kqueue = have_inc "sys/event.h";
		190	$can_kqueue = $ENV{EV_KQUEUE} if exists $ENV{EV_KQUEUE};
		191	$DEFINE .= " -DEV_USE_KQUEUE=" . (0 + (prompt ("Enable kqueue backend (y/n)?", $can_kqueue ? "y" : "n") =~ /[yY]/));
		192
		193	print <<EOF;
		194
		195	* * * * * * * * * * * * * * * * * *
		196
		197
		198	Similarly to the kqueue backend above, EV can take advantage of the
		199	solaris 10 event port interface. Support for event ports will be detected
		200	at runtime, with a safe fallback to other methods when it cannot be used.
		201
		202	EOF
		203
		204	$DEFINE .= " -DEV_USE_PORT=" . (0 + (prompt ("Enable event port backend (y/n)?", (have_inc "sys/port.h") ? "y" : "n") =~ /[yY]/));
		205
		206	print <<EOF;
		207
		208	* * * * * * * * * * * * * * * * * *
		209
		210
		211	EV needs the functions pthread_atfork and clock_gettime. On most systems
		212	you need some special libraries for this (such as -lrt and -lpthread). You
		213	can specify additional libraries to provide these calls (and any other
		214	required by EV) now, or accept the default.
		215
		216	On GNU/Linux systems, EV uses the LSB 3.1 __register_atfork function
		217	to avoid the dependency on libpthread, and directly uses the clock_gettime
		218	syscall to avoid a dependency on librt.
		219
		220	EOF
		221
		222	my $solaris_libs = $^O =~ /solaris/i ? "-lsocket -lnsl" : "";
		223	my $librt = $^O =~ /linux/i ? "" : "-lpthread -lrt";
		224	my $LIBS = exists $ENV{EV_LIBS} ? $ENV{EV_LIBS} : "$librt $solaris_libs";
		225	$LIBS = prompt "Extra libraries for pthread_atfork and clock_gettime?", $LIBS;
		226
		227
		228	print <<EOF;
		229
		230	* * * * * * * * * * * * * * * * * *
		231
		232
		233	A backend of a different kind is the Linux inotify(7) interface, which can
		234	be used to speed up (and reduce resource consumption) of stat watchers. If
		235	you have the include file and libc support for it, it is usually a good
		236	idea to enable it, as kernel availability is detected at runtime.
		237
		238	EOF
		239
		240	my $can_inotify = have_inc "sys/inotify.h";
		241	$can_inotify = $ENV{EV_INOTIFY} if exists $ENV{EV_INOTIFY};
		242	$DEFINE .= " -DEV_USE_INOTIFY=" . (0 + (prompt ("Enable inotify support (y/n)?", $can_inotify ? "y" : "n") =~ /[yY]/));
		243
		244	print <<EOF;
		245
		246	* * * * * * * * * * * * * * * * * *
		247
		248
		249	Another useful bit of functionality is the Linux eventfd, which is useful
		250	for faster signal handling (don't care) and intra-thread communications
		251	(more relevant). Kernel support for this will be probed at runtime, but
		252	your libc must contain the necessary wrapper. Glibc 2.7 and later should
		253	have this wrapper.
		254
		255	EOF
		256
		257	my $can_eventfd = have_inc "sys/eventfd.h";
		258	$can_eventfd = $ENV{EV_EVENTFD} if exists $ENV{EV_EVENTFD};
		259	$DEFINE .= " -DEV_USE_EVENTFD=" . (0 + (prompt ("Enable linux eventfd support (y/n)?", $can_eventfd ? "y" : "n") =~ /[yY]/));
		260
		261	print <<EOF;
		262
		263	* * * * * * * * * * * * * * * * * *
		264
		265
		266	Another sometimes useful bit of functionality is the Linux signalfd, which
		267	is useful for faster signal handling (don't care). Kernel support for
		268	this will be probed at runtime, but your libc must contain the necessary
		269	wrapper. Glibc 2.7 and later should have this wrapper.
		270
		271	EOF
		272
		273	my $can_signalfd = have_inc "sys/signalfd.h";
		274	$can_signalfd = $ENV{EV_SIGNALFD} if exists $ENV{EV_SIGNALFD};
		275	$DEFINE .= " -DEV_USE_SIGNALFD=" . (0 + (prompt ("Enable linux signalfd support (y/n)?", $can_signalfd ? "y" : "n") =~ /[yY]/));
		276
		277	print <<EOF;
		278
		279	* * * * * * * * * * * * * * * * * *
		280
		281
		282	Very rarely, people want to tweak EV even more, e.g. to exclude
		283	or include certain watcher types or backends. This can be done by adding
		284	extra -D options here, or via the EV_EXTRA_DEFS environment variable.
		285
		286	For example, if you run into compile problems because of missing memory
		287	fences (or you just want extra performance), you can tell EV to not support
		288	smp and threads via -DEV_NO_THREADS.
		289
		290	Normal persons just press enter.
		291
		292	EOF
		293
		294	$DEFINE .= " " . prompt "Any extra -D options?", "$ENV{EV_EXTRA_DEFS}";
		295
		296	print <<EOF;
		297
		298	* * * * * * * * * * * * * * * * * *
		299
		300
		301	EOF
		302
		303	my @anyevent = eval { require AnyEvent; $AnyEvent::VERSION < 5.29 } ? (AnyEvent => 5.29) : ();
16		304
17	WriteMakefile(	305	WriteMakefile(
18	dist => {	306	dist => {
19	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',	307	PREOP => 'pod2text EV.pm \| tee README >$(DISTVNAME)/README; chmod -R u=rwX,go=rX . ;',
20	COMPRESS => 'gzip -9v',	308	COMPRESS => 'gzip -9v',
21	SUFFIX => '.gz',	309	SUFFIX => '.gz',
22	},	310	},
23	LIBS => ["-levent"],	311	depend => {
		312	"EV.c" => "EV/EVAPI.h "
		313	. "libev/ev.c libev/ev.h libev/ev_epoll.c libev/ev_select.c libev/ev_kqueue.c libev/ev_poll.c "
		314	. "libev/ev_vars.h libev/ev_wrap.h",
		315	},
		316	INC => "-Ilibev",
		317	DEFINE => "$DEFINE",
24	NAME => "EV",	318	NAME => "EV",
		319	LIBS => [$LIBS],
		320	PREREQ_PM => {
		321	@anyevent,
		322	"common::sense" => 0,
		323	},
		324	CONFIGURE_REQUIRES => { "ExtUtils::MakeMaker" => 6.52, "Canary::Stability" => 0 },
25	VERSION_FROM => "EV.pm",	325	VERSION_FROM => "EV.pm",
26	PM => {	326	PM => {
27	'EV.pm' => '$(INST_LIBDIR)/EV.pm',	327	'EV.pm' => '$(INST_LIB)/EV.pm',
28	'EV/AnyEvent.pm' => '$(INST_LIBDIR)/EV/AnyEvent.pm',
29	'EV/DNS.pm' => '$(INST_LIBDIR)/EV/DNS.pm',
30	'EV/EVAPI.h' => '$(INST_LIBDIR)/EV/EVAPI.h',	328	'EV/EVAPI.h' => '$(INST_LIB)/EV/EVAPI.h',
31	'EV/MakeMaker.pm' => '$(INST_LIBDIR)/EV/MakeMaker.pm',	329	'EV/MakeMaker.pm' => '$(INST_LIB)/EV/MakeMaker.pm',
		330	'libev/ev.h' => '$(INST_LIB)/EV/ev.h',
		331	'libev/ev.pod' => '$(INST_LIB)/EV/libev.pod',
32	},	332	},
		333	MAN3PODS => {
		334	'EV.pm' => '$(INST_MAN3DIR)/EV.$(MAN3EXT)',
		335	'EV/MakeMaker.pm' => '$(INST_MAN3DIR)/EV::MakeMaker.$(MAN3EXT)',
		336	'libev/ev.pod' => '$(INST_MAN3DIR)/EV::libev.$(MAN3EXT)',
		337	},
33	);	338	);
34		339
		340

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Comparing EV/Makefile.PL (file contents): Revision 1.5 by root, Mon Oct 29 08:48:07 2007 UTC vs. Revision 1.58 by root, Sat Jun 22 15:50:36 2019 UTC

Diff Legend

Comparing EV/Makefile.PL (file contents):
Revision 1.5 by root, Mon Oct 29 08:48:07 2007 UTC vs.
Revision 1.58 by root, Sat Jun 22 15:50:36 2019 UTC