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[perl5.git] / dist / Time-HiRes / Makefile.PL
CommitLineData
56c1b3bd
RGS
1#!/usr/bin/perl
2#
3# In general we trust %Config, but for nanosleep() this trust
3d0346a5 4# may be misplaced (it may be linkable but not really functional).
56c1b3bd
RGS
5# Use $ENV{FORCE_NANOSLEEP_SCAN} to force rescanning whether there
6# really is hope.
7
90e44bf6 8{ use 5.006; }
3f2ee006
HS
9
10use Config;
dcf686c9 11use ExtUtils::MakeMaker;
98b50af3 12use strict;
3f2ee006
HS
13
14my $VERBOSE = $ENV{VERBOSE};
98b50af3 15my $DEFINE;
046e3f33 16my $LIBS = [];
56c1b3bd 17my $XSOPT = '';
ced84e60 18my $SYSCALL_H;
98b50af3 19
90e44bf6 20our $self; # Used in 'sourcing' the hints.
046e3f33 21
3722f0dc
PG
22# TBD: Can we just use $Config(exe_ext) here instead of this complex
23# expression?
4ed0e2d4 24my $ld_exeext = ($^O eq 'cygwin' ||
3722f0dc
PG
25 $^O eq 'os2' && $Config{ldflags} =~ /-Zexe\b/) ? '.exe' :
26 (($^O eq 'vos') ? $Config{exe_ext} : '');
622913ab 27
12724655
IZ
28unless($ENV{PERL_CORE}) {
29 $ENV{PERL_CORE} = 1 if grep { $_ eq 'PERL_CORE=1' } @ARGV;
98b50af3
JH
30}
31
32# Perls 5.002 and 5.003 did not have File::Spec, fake what we need.
3f2ee006
HS
33
34sub my_dirsep {
35 $^O eq 'VMS' ? '.' :
36 $^O =~ /mswin32|netware|djgpp/i ? '\\' :
37 $^O eq 'MacOS' ? ':'
38 : '/';
39}
40
41sub my_catdir {
42 shift;
43 my $catdir = join(my_dirsep, @_);
98b50af3
JH
44 $^O eq 'VMS' ? "[$catdir]" : $catdir;
45}
46
47sub my_catfile {
48 shift;
49 return join(my_dirsep, @_) unless $^O eq 'VMS';
50 my $file = pop;
51 return my_catdir (undef, @_) . $file;
3f2ee006
HS
52}
53
54sub my_updir {
55 shift;
56 $^O eq 'VMS' ? "-" : "..";
57}
58
59BEGIN {
60 eval { require File::Spec };
61 if ($@) {
25ca0970
JH
62 *File::Spec::catdir = \&my_catdir;
63 *File::Spec::updir = \&my_updir;
98b50af3 64 *File::Spec::catfile = \&my_catfile;
3f2ee006
HS
65 }
66}
67
98b50af3
JH
68# Avoid 'used only once' warnings.
69my $nop1 = *File::Spec::catdir;
70my $nop2 = *File::Spec::updir;
71my $nop3 = *File::Spec::catfile;
72
3f2ee006
HS
73# if you have 5.004_03 (and some slightly older versions?), xsubpp
74# tries to generate line numbers in the C code generated from the .xs.
75# unfortunately, it is a little buggy around #ifdef'd code.
5d899d7e 76# my choice is leave it in and have people with old perls complain
3f2ee006 77# about the "Usage" bug, or leave it out and be unable to compile myself
5d899d7e 78# without changing it, and then I'd always forget to change it before a
3f2ee006
HS
79# release. Sorry, Edward :)
80
3f2ee006
HS
81sub try_compile_and_link {
82 my ($c, %args) = @_;
83
84 my ($ok) = 0;
2359510d 85 my ($tmp) = "tmp$$";
3f2ee006
HS
86 local(*TMPC);
87
88 my $obj_ext = $Config{obj_ext} || ".o";
89 unlink("$tmp.c", "$tmp$obj_ext");
90
91 if (open(TMPC, ">$tmp.c")) {
92 print TMPC $c;
93 close(TMPC);
94
98b50af3 95 my $cccmd = $args{cccmd};
3f2ee006
HS
96
97 my $errornull;
98
99 my $COREincdir;
98b50af3 100
3f2ee006
HS
101 if ($ENV{PERL_CORE}) {
102 my $updir = File::Spec->updir;
40d04ec4 103 $COREincdir = File::Spec->catdir(($updir) x 2);
3f2ee006
HS
104 } else {
105 $COREincdir = File::Spec->catdir($Config{'archlibexp'}, 'CORE');
106 }
98b50af3 107
9e000d5b
SH
108 if ($ENV{PERL_CORE}) {
109 unless (-f File::Spec->catfile($COREincdir, "EXTERN.h")) {
110 die <<__EOD__;
111Your environment variable PERL_CORE is '$ENV{PERL_CORE}' but there
112is no EXTERN.h in $COREincdir.
113Cannot continue, aborting.
114__EOD__
115 }
116 }
117
c7627e6d
NC
118 my $ccflags = $Config{'ccflags'} . ' ' . "-I$COREincdir"
119 . ' -DPERL_NO_INLINE_FUNCTIONS';
98b50af3 120
3f2ee006 121 if ($^O eq 'VMS') {
4edfaa88 122 $cccmd = "$Config{'cc'} /include=($COREincdir) $tmp.c";
3f2ee006
HS
123 }
124
125 if ($args{silent} || !$VERBOSE) {
126 $errornull = "2>/dev/null" unless defined $errornull;
127 } else {
128 $errornull = '';
129 }
130
98b50af3 131 $cccmd = "$Config{'cc'} -o $tmp $ccflags $tmp.c @$LIBS $errornull"
3f2ee006 132 unless defined $cccmd;
98b50af3 133
c1363767 134 if ($^O eq 'VMS') {
3f2ee006
HS
135 open( CMDFILE, ">$tmp.com" );
136 print CMDFILE "\$ SET MESSAGE/NOFACILITY/NOSEVERITY/NOIDENT/NOTEXT\n";
137 print CMDFILE "\$ $cccmd\n";
98b50af3 138 print CMDFILE "\$ IF \$SEVERITY .NE. 1 THEN EXIT 44\n"; # escalate
3f2ee006
HS
139 close CMDFILE;
140 system("\@ $tmp.com");
141 $ok = $?==0;
5d899d7e 142 for ("$tmp.c", "$tmp$obj_ext", "$tmp.com", "$tmp$Config{exe_ext}") {
98b50af3 143 1 while unlink $_;
3f2ee006
HS
144 }
145 }
146 else
147 {
622913ab 148 my $tmp_exe = "$tmp$ld_exeext";
3f2ee006 149 printf "cccmd = $cccmd\n" if $VERBOSE;
622913ab 150 my $res = system($cccmd);
ced84e60 151 $ok = defined($res) && $res == 0 && -s $tmp_exe && -x _;
26e22fd9 152
5ac41681 153 if ( $ok && exists $args{run} && $args{run} && !$ENV{TIME_HIRES_DONT_RUN_PROBES} ) {
06252d99
RGS
154 my $tmp_exe =
155 File::Spec->catfile(File::Spec->curdir, $tmp_exe);
120b53f9
RS
156 my @run = $tmp_exe;
157 unshift @run, $Config{run} if $Config{run} && -e $Config{run};
06252d99 158 printf "Running $tmp_exe..." if $VERBOSE;
120b53f9 159 if (system(@run) == 0) {
56c1b3bd 160 $ok = 1;
26e22fd9 161 } else {
56c1b3bd 162 $ok = 0;
ced84e60
SP
163 my $errno = $? >> 8;
164 local $! = $errno;
165 printf <<EOF;
166
167*** The test run of '$tmp_exe' failed: status $?
168*** (the status means: errno = $errno or '$!')
169*** DO NOT PANIC: this just means that *some* functionality will be missing.
170EOF
26e22fd9
RGS
171 }
172 }
622913ab 173 unlink("$tmp.c", $tmp_exe);
3f2ee006
HS
174 }
175 }
5d899d7e 176
26e22fd9 177 return $ok;
3f2ee006
HS
178}
179
75d5269b 180my $TIME_HEADERS = <<EOH;
5d899d7e
JH
181#include "EXTERN.h"
182#include "perl.h"
183#include "XSUB.h"
184#ifdef I_SYS_TYPES
3f2ee006
HS
185# include <sys/types.h>
186#endif
3f2ee006
HS
187#ifdef I_SYS_TIME
188# include <sys/time.h>
189#endif
3f2ee006
HS
190#ifdef I_SYS_SELECT
191# include <sys/select.h> /* struct timeval might be hidden in here */
192#endif
75d5269b
SP
193EOH
194
195sub has_gettimeofday {
196 # confusing but true (if condition true ==> -DHAS_GETTIMEOFDAY already)
197 return 0 if $Config{d_gettimeod};
198 return 1 if try_compile_and_link(<<EOM);
199$TIME_HEADERS
3f2ee006
HS
200static int foo()
201{
202 struct timeval tv;
203 gettimeofday(&tv, 0);
204}
f3370602 205int main(int argc, char** argv)
3f2ee006
HS
206{
207 foo();
208}
209EOM
210 return 0;
211}
212
213sub has_x {
98b50af3 214 my ($x, %args) = @_;
3f2ee006
HS
215
216 return 1 if
217 try_compile_and_link(<<EOM, %args);
218#include "EXTERN.h"
219#include "perl.h"
220#include "XSUB.h"
221
222#ifdef I_UNISTD
223# include <unistd.h>
224#endif
225
226#ifdef I_SYS_TYPES
227# include <sys/types.h>
228#endif
229
230#ifdef I_SYS_TIME
231# include <sys/time.h>
232#endif
233
f3370602 234int main(int argc, char** argv)
3f2ee006
HS
235{
236 $x;
237}
238EOM
239 return 0;
240}
241
26e22fd9 242sub has_nanosleep {
3d0346a5 243 print "testing... ";
26e22fd9
RGS
244 return 1 if
245 try_compile_and_link(<<EOM, run => 1);
246#include <time.h>
247#include <sys/time.h>
248#include <stdio.h>
249#include <stdlib.h>
250#include <errno.h>
251
252/* int nanosleep(const struct timespec *rqtp, struct timespec *rmtp); */
253
f3370602 254int main(int argc, char** argv) {
26e22fd9 255 struct timespec ts1, ts2;
56c1b3bd 256 int ret;
26e22fd9
RGS
257 ts1.tv_sec = 0;
258 ts1.tv_nsec = 750000000;
259 ts2.tv_sec = 0;
260 ts2.tv_nsec = 0;
56c1b3bd 261 errno = 0;
ced84e60 262 ret = nanosleep(&ts1, &ts2); /* E.g. in AIX nanosleep() fails and sets errno to ENOSYS. */
56c1b3bd 263 ret == 0 ? exit(0) : exit(errno ? errno : -1);
26e22fd9
RGS
264}
265EOM
266}
267
4ed0e2d4
RGS
268sub has_include {
269 my ($inc) = @_;
270 return 1 if
271 try_compile_and_link(<<EOM);
272#include "EXTERN.h"
273#include "perl.h"
274#include "XSUB.h"
275
276#include <$inc>
f3370602 277int main(int argc, char** argv)
4ed0e2d4
RGS
278{
279 return 0;
280}
281EOM
282 return 0;
283}
284
170c5524 285sub has_clock_xxx_syscall {
ced84e60
SP
286 my $x = shift;
287 return 0 unless defined $SYSCALL_H;
288 return 1 if
289 try_compile_and_link(<<EOM, run => 1);
290#include "EXTERN.h"
291#include "perl.h"
292#include "XSUB.h"
293#include <$SYSCALL_H>
f3370602 294int main(int argc, char** argv)
ced84e60
SP
295{
296 struct timespec ts;
297 /* Many Linuxes get ENOSYS even though the syscall exists. */
298 /* All implementations are supposed to support CLOCK_REALTIME. */
299 int ret = syscall(SYS_clock_$x, CLOCK_REALTIME, &ts);
300 ret == 0 ? exit(0) : exit(errno ? errno : -1);
301}
302EOM
303}
304
170c5524
SP
305sub has_clock_xxx {
306 my $xxx = shift;
ced84e60
SP
307 return 1 if
308 try_compile_and_link(<<EOM, run => 1);
309#include "EXTERN.h"
310#include "perl.h"
311#include "XSUB.h"
f3370602 312int main(int argc, char** argv)
ced84e60
SP
313{
314 struct timespec ts;
170c5524 315 int ret = clock_$xxx(CLOCK_REALTIME, &ts); /* Many Linuxes get ENOSYS. */
ced84e60
SP
316 /* All implementations are supposed to support CLOCK_REALTIME. */
317 ret == 0 ? exit(0) : exit(errno ? errno : -1);
318}
319EOM
320}
321
170c5524
SP
322sub has_clock {
323 return 1 if
324 try_compile_and_link(<<EOM, run => 1);
325#include "EXTERN.h"
326#include "perl.h"
327#include "XSUB.h"
f3370602 328int main(int argc, char** argv)
170c5524
SP
329{
330 clock_t tictoc;
331 clock_t ret = clock();
332 ret == (clock_t)-1 ? exit(errno ? errno : -1) : exit(0);
333}
334EOM
335}
336
337sub has_clock_nanosleep {
338 return 1 if
339 try_compile_and_link(<<EOM, run => 1);
340#include "EXTERN.h"
341#include "perl.h"
342#include "XSUB.h"
a8fb48f7 343#include <time.h>
f3370602 344int main(int argc, char** argv)
170c5524
SP
345{
346 int ret;
a8fb48f7
SP
347 struct timespec ts1;
348 struct timespec ts2;
170c5524
SP
349 ts1.tv_sec = 0;
350 ts1.tv_nsec = 750000000;;
351 ret = clock_nanosleep(CLOCK_MONOTONIC, 0, &ts1, &ts2);
352 ret == 0 ? exit(0) : exit(errno ? errno : -1);
353}
354EOM
355}
356
c4a535af
SH
357sub has_futimens {
358 return 1 if
359 try_compile_and_link(<<EOM);
360#include "EXTERN.h"
361#include "perl.h"
362#include "XSUB.h"
363#include <sys/time.h>
364int main(int argc, char** argv)
365{
366 int ret;
367 struct timespec ts[2];
368 ret = futimens(0, ts);
369 ret == 0 ? exit(0) : exit(errno ? errno : -1);
370}
371EOM
372}
373
374sub has_utimensat{
375 return 1 if
376 try_compile_and_link(<<EOM);
377#include "EXTERN.h"
378#include "perl.h"
379#include "XSUB.h"
380#include <sys/time.h>
381#include <fcntl.h>
382int main(int argc, char** argv)
383{
384 int ret;
385 struct timespec ts[2];
386 ret = utimensat(AT_FDCWD, 0, ts, 0);
387 ret == 0 ? exit(0) : exit(errno ? errno : -1);
388}
389EOM
390}
391
a8fb48f7
SP
392sub DEFINE {
393 my ($def, $val) = @_;
394 my $define = defined $val ? "$def=$val" : $def ;
395 unless ($DEFINE =~ /(?:^| )-D\Q$define\E(?: |$)/) {
396 $DEFINE .= " -D$define";
397 }
398}
399
046e3f33
JH
400sub init {
401 my $hints = File::Spec->catfile("hints", "$^O.pl");
402 if (-f $hints) {
403 print "Using hints $hints...\n";
404 local $self;
405 do $hints;
406 if (exists $self->{LIBS}) {
407 $LIBS = $self->{LIBS};
408 print "Extra libraries: @$LIBS...\n";
3f2ee006
HS
409 }
410 }
046e3f33
JH
411
412 $DEFINE = '';
3f2ee006 413
ced84e60 414 if ($Config{d_syscall}) {
a5929ff3 415 print "Have syscall()... looking for syscall.h... ";
ced84e60
SP
416 if (has_include('syscall.h')) {
417 $SYSCALL_H = 'syscall.h';
418 } elsif (has_include('sys/syscall.h')) {
419 $SYSCALL_H = 'sys/syscall.h';
420 }
a5929ff3
RGS
421 } else {
422 print "No syscall()...\n";
ced84e60
SP
423 }
424
a5929ff3
RGS
425 if ($Config{d_syscall}) {
426 if (defined $SYSCALL_H) {
427 print "found <$SYSCALL_H>.\n";
428 } else {
429 print "NOT found.\n";
430 }
ced84e60
SP
431 }
432
98b50af3 433 print "Looking for gettimeofday()... ";
3f2ee006 434 my $has_gettimeofday;
5d899d7e
JH
435 if (exists $Config{d_gettimeod}) {
436 $has_gettimeofday++ if $Config{d_gettimeod};
3f2ee006
HS
437 } elsif (has_gettimeofday()) {
438 $DEFINE .= ' -DHAS_GETTIMEOFDAY';
439 $has_gettimeofday++;
440 }
441
442 if ($has_gettimeofday) {
98b50af3 443 print "found.\n";
3f2ee006
HS
444 } else {
445 die <<EOD
446Your operating system does not seem to have the gettimeofday() function.
447(or, at least, I cannot find it)
448
449There is no way Time::HiRes is going to work.
450
451I am awfully sorry but I cannot go further.
452
453Aborting configuration.
454
455EOD
456 }
457
98b50af3 458 print "Looking for setitimer()... ";
3f2ee006 459 my $has_setitimer;
5d899d7e
JH
460 if (exists $Config{d_setitimer}) {
461 $has_setitimer++ if $Config{d_setitimer};
3f2ee006
HS
462 } elsif (has_x("setitimer(ITIMER_REAL, 0, 0)")) {
463 $has_setitimer++;
464 $DEFINE .= ' -DHAS_SETITIMER';
465 }
466
467 if ($has_setitimer) {
98b50af3 468 print "found.\n";
3f2ee006 469 } else {
98b50af3 470 print "NOT found.\n";
3f2ee006
HS
471 }
472
98b50af3 473 print "Looking for getitimer()... ";
3f2ee006 474 my $has_getitimer;
5d899d7e
JH
475 if (exists $Config{'d_getitimer'}) {
476 $has_getitimer++ if $Config{'d_getitimer'};
3f2ee006
HS
477 } elsif (has_x("getitimer(ITIMER_REAL, 0)")) {
478 $has_getitimer++;
479 $DEFINE .= ' -DHAS_GETITIMER';
480 }
481
482 if ($has_getitimer) {
98b50af3 483 print "found.\n";
3f2ee006 484 } else {
98b50af3 485 print "NOT found.\n";
3f2ee006
HS
486 }
487
488 if ($has_setitimer && $has_getitimer) {
4ed0e2d4 489 print "You have interval timers (both setitimer and getitimer).\n";
3f2ee006 490 } else {
98b50af3 491 print "You do not have interval timers.\n";
3f2ee006
HS
492 }
493
98b50af3
JH
494 print "Looking for ualarm()... ";
495 my $has_ualarm;
5d899d7e
JH
496 if (exists $Config{d_ualarm}) {
497 $has_ualarm++ if $Config{d_ualarm};
3f2ee006
HS
498 } elsif (has_x ("ualarm (0, 0)")) {
499 $has_ualarm++;
500 $DEFINE .= ' -DHAS_UALARM';
501 }
502
503 if ($has_ualarm) {
98b50af3 504 print "found.\n";
3f2ee006 505 } else {
98b50af3
JH
506 print "NOT found.\n";
507 if ($has_setitimer) {
508 print "But you have setitimer().\n";
509 print "We can make a Time::HiRes::ualarm().\n";
3f2ee006
HS
510 }
511 }
512
98b50af3 513 print "Looking for usleep()... ";
3f2ee006 514 my $has_usleep;
5d899d7e
JH
515 if (exists $Config{d_usleep}) {
516 $has_usleep++ if $Config{d_usleep};
3f2ee006
HS
517 } elsif (has_x ("usleep (0)")) {
518 $has_usleep++;
519 $DEFINE .= ' -DHAS_USLEEP';
520 }
521
522 if ($has_usleep) {
98b50af3 523 print "found.\n";
3f2ee006 524 } else {
98b50af3
JH
525 print "NOT found.\n";
526 print "Let's see if you have select()... ";
56c1b3bd 527 if ($Config{'d_select'}) {
98b50af3
JH
528 print "found.\n";
529 print "We can make a Time::HiRes::usleep().\n";
3f2ee006 530 } else {
98b50af3
JH
531 print "NOT found.\n";
532 print "You won't have a Time::HiRes::usleep().\n";
3f2ee006
HS
533 }
534 }
535
98b50af3 536 print "Looking for nanosleep()... ";
3f2ee006 537 my $has_nanosleep;
3d0346a5
SP
538 if ($ENV{FORCE_NANOSLEEP_SCAN}) {
539 print "forced scan... ";
540 if (has_nanosleep()) {
541 $has_nanosleep++;
542 $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
543 }
544 }
545 elsif (exists $Config{d_nanosleep}) {
546 print "believing \$Config{d_nanosleep}... ";
c1363767
JH
547 if ($Config{d_nanosleep}) {
548 $has_nanosleep++;
549 $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
550 }
3d0346a5
SP
551 } elsif ($^O =~ /^(mpeix)$/) {
552 # MPE/iX falsely finds nanosleep from its libc equivalent.
553 print "skipping because in $^O... ";
554 } else {
555 if (has_nanosleep()) {
556 $has_nanosleep++;
557 $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
558 }
3f2ee006
HS
559 }
560
561 if ($has_nanosleep) {
98b50af3 562 print "found.\n";
4ed0e2d4
RGS
563 print "You can mix subsecond sleeps with signals, if you want to.\n";
564 print "(It's still not portable, though.)\n";
3f2ee006 565 } else {
98b50af3 566 print "NOT found.\n";
622913ab
IZ
567 my $nt = ($^O eq 'os2' ? '' : 'not');
568 print "You can$nt mix subsecond sleeps with signals.\n";
4ed0e2d4
RGS
569 print "(It would not be portable anyway.)\n";
570 }
571
ced84e60
SP
572 print "Looking for clock_gettime()... ";
573 my $has_clock_gettime;
1e845d0c 574 my $has_clock_gettime_emulation;
ced84e60
SP
575 if (exists $Config{d_clock_gettime}) {
576 $has_clock_gettime++ if $Config{d_clock_gettime}; # Unlikely...
170c5524 577 } elsif (has_clock_xxx('gettime')) {
ced84e60
SP
578 $has_clock_gettime++;
579 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETTIME';
170c5524 580 } elsif (defined $SYSCALL_H && has_clock_xxx_syscall('gettime')) {
ced84e60
SP
581 $has_clock_gettime++;
582 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETTIME -DTIME_HIRES_CLOCK_GETTIME_SYSCALL';
1e845d0c
JH
583 } elsif ($^O eq 'darwin') {
584 $has_clock_gettime_emulation++;
585 $has_clock_gettime++;
c4a535af 586 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETTIME -DTIME_HIRES_CLOCK_GETTIME_EMULATION';
ced84e60
SP
587 }
588
589 if ($has_clock_gettime) {
590 if ($DEFINE =~ /-DTIME_HIRES_CLOCK_GETTIME_SYSCALL/) {
591 print "found (via syscall).\n";
1e845d0c
JH
592 } elsif ($has_clock_gettime_emulation) {
593 print "found (via emulation).\n";
ced84e60
SP
594 } else {
595 print "found.\n";
596 }
597 } else {
598 print "NOT found.\n";
599 }
600
601 print "Looking for clock_getres()... ";
602 my $has_clock_getres;
1e845d0c 603 my $has_clock_getres_emulation;
ced84e60
SP
604 if (exists $Config{d_clock_getres}) {
605 $has_clock_getres++ if $Config{d_clock_getres}; # Unlikely...
170c5524 606 } elsif (has_clock_xxx('getres')) {
ced84e60
SP
607 $has_clock_getres++;
608 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETRES';
170c5524 609 } elsif (defined $SYSCALL_H && has_clock_xxx_syscall('getres')) {
ced84e60
SP
610 $has_clock_getres++;
611 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETRES -DTIME_HIRES_CLOCK_GETRES_SYSCALL';
1e845d0c
JH
612 } elsif ($^O eq 'darwin') {
613 $has_clock_getres_emulation++;
614 $has_clock_getres++;
c4a535af 615 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETRES -DTIME_HIRES_CLOCK_GETRES_EMULATION';
ced84e60
SP
616 }
617
618 if ($has_clock_getres) {
619 if ($DEFINE =~ /-DTIME_HIRES_CLOCK_GETRES_SYSCALL/) {
620 print "found (via syscall).\n";
1e845d0c
JH
621 } elsif ($has_clock_getres_emulation) {
622 print "found (via emulation).\n";
ced84e60
SP
623 } else {
624 print "found.\n";
625 }
626 } else {
627 print "NOT found.\n";
628 }
629
170c5524
SP
630 print "Looking for clock_nanosleep()... ";
631 my $has_clock_nanosleep;
3b614a59 632 my $has_clock_nanosleep_emulation;
170c5524
SP
633 if (exists $Config{d_clock_nanosleep}) {
634 $has_clock_nanosleep++ if $Config{d_clock_nanosleep}; # Unlikely...
635 } elsif (has_clock_nanosleep()) {
636 $has_clock_nanosleep++;
637 $DEFINE .= ' -DTIME_HIRES_CLOCK_NANOSLEEP';
3b614a59
JH
638 } elsif ($^O eq 'darwin') {
639 $has_clock_nanosleep++;
640 $has_clock_nanosleep_emulation++;
c4a535af 641 $DEFINE .= ' -DTIME_HIRES_CLOCK_NANOSLEEP -DTIME_HIRES_CLOCK_NANOSLEEP_EMULATION';
170c5524
SP
642 }
643
644 if ($has_clock_nanosleep) {
3b614a59
JH
645 if ($has_clock_nanosleep_emulation) {
646 print "found (via emulation).\n";
647 } else {
648 print "found.\n";
649 }
170c5524
SP
650 } else {
651 print "NOT found.\n";
652 }
653
654 print "Looking for clock()... ";
655 my $has_clock;
656 if (exists $Config{d_clock}) {
657 $has_clock++ if $Config{d_clock}; # Unlikely...
658 } elsif (has_clock()) {
659 $has_clock++;
660 $DEFINE .= ' -DTIME_HIRES_CLOCK';
661 }
662
663 if ($has_clock) {
664 print "found.\n";
665 } else {
666 print "NOT found.\n";
667 }
668
c4a535af
SH
669 print "Looking for futimens()... ";
670 my $has_futimens;
671 if (has_futimens()) {
672 $has_futimens++;
673 $DEFINE .= ' -DHAS_FUTIMENS';
674 }
675
676 if ($has_futimens) {
677 print "found.\n";
678 } else {
679 print "NOT found.\n";
680 }
681
682 print "Looking for utimensat()... ";
683 my $has_utimensat;
684 if (has_utimensat()) {
685 $has_utimensat++;
686 $DEFINE .= ' -DHAS_UTIMENSAT';
687 }
688
689 if ($has_utimensat) {
690 print "found.\n";
691 } else {
692 print "NOT found.\n";
693 }
694
695 if ($has_futimens or $has_utimensat) {
696 $DEFINE .= ' -DTIME_HIRES_UTIME';
697 }
698
f3370602
SP
699 print "Looking for stat() subsecond timestamps...\n";
700
75d5269b
SP
701 print "Trying struct stat st_atimespec.tv_nsec...";
702 my $has_stat_st_xtimespec;
703 if (try_compile_and_link(<<EOM)) {
704$TIME_HEADERS
705#include <sys/stat.h>
f3370602 706int main(int argc, char** argv) {
75d5269b
SP
707 struct stat st;
708 st.st_atimespec.tv_nsec = 0;
709}
710EOM
711 $has_stat_st_xtimespec++;
c4a535af 712 DEFINE('TIME_HIRES_STAT_ST_XTIMESPEC'); # 1
75d5269b
SP
713 }
714
715 if ($has_stat_st_xtimespec) {
716 print "found.\n";
717 } else {
718 print "NOT found.\n";
719 }
720
721 print "Trying struct stat st_atimensec...";
722 my $has_stat_st_xtimensec;
723 if (try_compile_and_link(<<EOM)) {
724$TIME_HEADERS
725#include <sys/stat.h>
f3370602 726int main(int argc, char** argv) {
75d5269b
SP
727 struct stat st;
728 st.st_atimensec = 0;
729}
730EOM
731 $has_stat_st_xtimensec++;
c4a535af 732 DEFINE('TIME_HIRES_STAT_ST_XTIMENSEC'); # 2
75d5269b
SP
733 }
734
735 if ($has_stat_st_xtimensec) {
736 print "found.\n";
737 } else {
738 print "NOT found.\n";
739 }
740
741 print "Trying struct stat st_atime_n...";
742 my $has_stat_st_xtime_n;
743 if (try_compile_and_link(<<EOM)) {
744$TIME_HEADERS
745#include <sys/stat.h>
f3370602 746int main(int argc, char** argv) {
75d5269b
SP
747 struct stat st;
748 st.st_atime_n = 0;
749}
750EOM
751 $has_stat_st_xtime_n++;
c4a535af 752 DEFINE('TIME_HIRES_STAT_ST_XTIME_N'); # 3
75d5269b
SP
753 }
754
755 if ($has_stat_st_xtime_n) {
756 print "found.\n";
757 } else {
758 print "NOT found.\n";
759 }
760
761 print "Trying struct stat st_atim.tv_nsec...";
762 my $has_stat_st_xtim;
763 if (try_compile_and_link(<<EOM)) {
764$TIME_HEADERS
765#include <sys/stat.h>
f3370602 766int main(int argc, char** argv) {
75d5269b
SP
767 struct stat st;
768 st.st_atim.tv_nsec = 0;
769}
770EOM
771 $has_stat_st_xtim++;
c4a535af 772 DEFINE('TIME_HIRES_STAT_XTIM'); # 4
75d5269b
SP
773 }
774
775 if ($has_stat_st_xtim) {
776 print "found.\n";
777 } else {
778 print "NOT found.\n";
779 }
780
781 print "Trying struct stat st_uatime...";
782 my $has_stat_st_uxtime;
783 if (try_compile_and_link(<<EOM)) {
784$TIME_HEADERS
785#include <sys/stat.h>
f3370602 786int main(int argc, char** argv) {
75d5269b
SP
787 struct stat st;
788 st.st_uatime = 0;
789}
790EOM
791 $has_stat_st_uxtime++;
c4a535af 792 DEFINE('TIME_HIRES_STAT_ST_UXTIME'); # 5
75d5269b
SP
793 }
794
795 if ($has_stat_st_uxtime) {
796 print "found.\n";
797 } else {
798 print "NOT found.\n";
799 }
800
c4a535af
SH
801 # See HiRes.xs hrstatns()
802 if ($has_stat_st_xtimespec) {
803 DEFINE('TIME_HIRES_STAT', 1);
804 } elsif ($has_stat_st_xtimensec) {
805 DEFINE('TIME_HIRES_STAT', 2);
806 } elsif ($has_stat_st_xtime_n) {
807 DEFINE('TIME_HIRES_STAT', 3);
808 } elsif ($has_stat_st_xtim) {
809 DEFINE('TIME_HIRES_STAT', 4);
810 } elsif ($has_stat_st_uxtime) {
811 DEFINE('TIME_HIRES_STAT', 5);
812 }
813
75d5269b 814 if ($DEFINE =~ /-DTIME_HIRES_STAT=\d+/) {
f3370602 815 print "You seem to have stat() subsecond timestamps.\n";
75d5269b
SP
816 print "(Your struct stat has them, but the filesystems must help.)\n";
817 } else {
818 print "You do not seem to have stat subsecond timestamps.\n";
819 }
820
4ed0e2d4 821 my $has_w32api_windows_h;
170c5524 822
4ed0e2d4
RGS
823 if ($^O eq 'cygwin') {
824 print "Looking for <w32api/windows.h>... ";
825 if (has_include('w32api/windows.h')) {
826 $has_w32api_windows_h++;
a8fb48f7 827 DEFINE('HAS_W32API_WINDOWS_H');
4ed0e2d4
RGS
828 }
829 if ($has_w32api_windows_h) {
830 print "found.\n";
831 } else {
832 print "NOT found.\n";
833 }
3f2ee006
HS
834 }
835
836 if ($DEFINE) {
837 $DEFINE =~ s/^\s+//;
838 if (open(XDEFINE, ">xdefine")) {
839 print XDEFINE $DEFINE, "\n";
840 close(XDEFINE);
841 }
842 }
843}
844
845sub doMakefile {
98b50af3 846 my @makefileopts = ();
3f2ee006
HS
847
848 if ($] >= 5.005) {
849 push (@makefileopts,
850 'AUTHOR' => 'Jarkko Hietaniemi <jhi@iki.fi>',
851 'ABSTRACT_FROM' => 'HiRes.pm',
852 );
a8fb48f7 853 DEFINE('ATLEASTFIVEOHOHFIVE');
3f2ee006
HS
854 }
855
856 push (@makefileopts,
857 'NAME' => 'Time::HiRes',
858 'VERSION_FROM' => 'HiRes.pm', # finds $VERSION
5d899d7e
JH
859 'LIBS' => $LIBS, # e.g., '-lm'
860 'DEFINE' => $DEFINE, # e.g., '-DHAS_SOMETHING'
3f2ee006 861 'XSOPT' => $XSOPT,
ced84e60
SP
862 # Do not even think about 'INC' => '-I/usr/ucbinclude',
863 # Solaris will avenge.
5d899d7e 864 'INC' => '', # e.g., '-I/usr/include/other'
0f0eae2c 865 'INSTALLDIRS' => ($] >= 5.008 && $] < 5.011 ? 'perl' : 'site'),
90e44bf6
Z
866 'PREREQ_PM' => {
867 'Carp' => 0,
868 'Config' => 0,
869 'DynaLoader' => 0,
870 'Exporter' => 0,
871 'ExtUtils::MakeMaker' => 0,
c4a535af 872 'Test::More' => 0,
90e44bf6
Z
873 'strict' => 0,
874 },
3f2ee006
HS
875 'dist' => {
876 'CI' => 'ci -l',
5d899d7e 877 'COMPRESS' => 'gzip -9f',
3f2ee006
HS
878 'SUFFIX' => 'gz',
879 },
880 clean => { FILES => "xdefine" },
1caec985 881 realclean => { FILES=> 'const-c.inc const-xs.inc' },
3f2ee006
HS
882 );
883
91a2e9f6
Z
884 if ($^O eq "MSWin32" && !(grep { /\ALD[A-Z]*=/ } @ARGV)) {
885 my $libperl = $Config{libperl} || "";
886 my $gccversion = $Config{gccversion} || "";
887 if ($gccversion =~ /\A3\.4\.[0-9]+/ and $libperl =~ /\.lib\z/) {
888 # Avoid broken linkage with ActivePerl, by linking directly
889 # against the Perl DLL rather than the import library.
890 (my $llibperl = "-l$libperl") =~ s/\.lib\z//;
891 my $lddlflags = $Config{lddlflags} || "";
892 my $ldflags = $Config{ldflags} || "";
893 s/-L(?:".*?"|\S+)//g foreach $lddlflags, $ldflags;
894 my $libdirs = join ' ',
895 map { s/(?<!\\)((?:\\\\)*")/\\$1/g; qq[-L"$_"] }
896 @Config{qw/bin sitebin/};
897 push @makefileopts, macro => {
898 LDDLFLAGS => "$lddlflags $libdirs $llibperl",
899 LDFLAGS => "$ldflags $libdirs $llibperl",
900 PERL_ARCHIVE => "",
901 };
902 }
903 }
904
9ac5eb64
JH
905 if ($ENV{PERL_CORE}) {
906 push @makefileopts, MAN3PODS => {};
907 }
908
4451fd4e
SH
909 if ($ExtUtils::MakeMaker::VERSION >= 6.48) {
910 push @makefileopts, (MIN_PERL_VERSION => '5.008',);
911 }
912
913 if ($ExtUtils::MakeMaker::VERSION >= 6.31) {
914 push @makefileopts, (LICENSE => 'perl_5');
915 }
916
3f2ee006
HS
917 WriteMakefile(@makefileopts);
918}
919
98b50af3
JH
920sub doConstants {
921 if (eval {require ExtUtils::Constant; 1}) {
6a6012c3
JH
922 my @names = qw(
923 CLOCKS_PER_SEC
105140f6 924 CLOCK_BOOTTIME
6a6012c3
JH
925 CLOCK_HIGHRES
926 CLOCK_MONOTONIC
105140f6 927 CLOCK_MONOTONIC_COARSE
774a3049 928 CLOCK_MONOTONIC_PRECISE
105140f6 929 CLOCK_MONOTONIC_RAW
6a6012c3
JH
930 CLOCK_PROCESS_CPUTIME_ID
931 CLOCK_REALTIME
105140f6 932 CLOCK_REALTIME_COARSE
774a3049
JH
933 CLOCK_REALTIME_FAST
934 CLOCK_REALTIME_PRECISE
935 CLOCK_SECOND
6a6012c3
JH
936 CLOCK_SOFTTIME
937 CLOCK_THREAD_CPUTIME_ID
938 CLOCK_TIMEOFDAY
774a3049
JH
939 CLOCK_UPTIME
940 CLOCK_UPTIME_FAST
941 CLOCK_UPTIME_PRECISE
6a6012c3
JH
942 ITIMER_PROF
943 ITIMER_REAL
944 ITIMER_REALPROF
945 ITIMER_VIRTUAL
946 TIMER_ABSTIME
947 );
98b50af3 948 foreach (qw (d_usleep d_ualarm d_gettimeofday d_getitimer d_setitimer
170c5524 949 d_nanosleep d_clock_gettime d_clock_getres
c4a535af
SH
950 d_clock d_clock_nanosleep d_hires_stat
951 d_futimens d_utimensat d_hires_utime)) {
98b50af3 952 my $macro = $_;
3b614a59 953 if ($macro =~ /^(d_nanosleep|d_clock)$/) {
82cbdcc3 954 $macro =~ s/^d_(.+)/TIME_HIRES_\U$1/;
75d5269b
SP
955 } elsif ($macro =~ /^(d_hires_stat)$/) {
956 my $d_hires_stat = 0;
957 $d_hires_stat = $1 if ($DEFINE =~ /-DTIME_HIRES_STAT=(\d+)/);
958 push @names, {name => $_, macro => "TIME_HIRES_STAT", value => $d_hires_stat,
959 default => ["IV", "0"]};
960 next;
c4a535af
SH
961 } elsif ($macro =~ /^(d_hires_utime)$/) {
962 my $d_hires_utime =
963 ($DEFINE =~ /-DHAS_FUTIMENS/ ||
964 $DEFINE =~ /-DHAS_UTIMENSAT/) ? 1 : 0;
965 push @names, {name => $_, macro => "TIME_HIRES_UTIME", value => $d_hires_utime,
966 default => ["IV", "0"]};
967 next;
3b614a59 968 } elsif ($macro =~ /^(d_clock_gettime|d_clock_getres|d_clock_nanosleep)$/) {
1e845d0c
JH
969 $macro =~ s/^d_(.+)/TIME_HIRES_\U$1/;
970 my $val = ($DEFINE =~ /-D$macro\b/) ? 1 : 0;
971 push @names, {name => $_, macro => $macro, value => $val,
972 default => ["IV", "0"]};
973 next;
672f6857 974 } else {
82cbdcc3 975 $macro =~ s/^d_(.+)/HAS_\U$1/;
672f6857 976 }
98b50af3
JH
977 push @names, {name => $_, macro => $macro, value => 1,
978 default => ["IV", "0"]};
979 }
980 ExtUtils::Constant::WriteConstants(
981 NAME => 'Time::HiRes',
982 NAMES => \@names,
983 );
984 } else {
1fbb4de4
RGS
985 my $file;
986 foreach $file ('const-c.inc', 'const-xs.inc') {
98b50af3
JH
987 my $fallback = File::Spec->catfile('fallback', $file);
988 local $/;
989 open IN, "<$fallback" or die "Can't open $fallback: $!";
990 open OUT, ">$file" or die "Can't open $file: $!";
991 print OUT <IN> or die $!;
992 close OUT or die "Can't close $file: $!";
993 close IN or die "Can't close $fallback: $!";
994 }
995 }
996}
3f2ee006 997
98b50af3 998sub main {
68c5b4db 999 if (-f "xdefine" && !(@ARGV && $ARGV[0] eq '--configure')) {
bf8300de 1000 print qq[$0: The "xdefine" exists, skipping the configure step.\n];
e5620114 1001 print qq[("$^X $0 --configure" to force the configure step)\n];
3f2ee006 1002 } else {
bf8300de
RGS
1003 print "Configuring Time::HiRes...\n";
1004 1 while unlink("define");
1005 if ($^O =~ /Win32/i) {
1006 DEFINE('SELECT_IS_BROKEN');
1007 $LIBS = [];
1008 print "System is $^O, skipping full configure...\n";
1009 open(XDEFINE, ">xdefine") or die "$0: Cannot create xdefine: $!\n";
1010 close(XDEFINE);
1011 } else {
1012 init();
1013 }
1014 doMakefile;
1015 doConstants;
3f2ee006 1016 }
3f2ee006 1017 my $make = $Config{'make'} || "make";
1fbb4de4 1018 unless (exists $ENV{PERL_CORE} && $ENV{PERL_CORE}) {
3f2ee006 1019 print <<EOM;
3f2ee006 1020Now you may issue '$make'. Do not forget also '$make test'.
dfffa540 1021EOM
806b8cc2
SP
1022 if ($] == 5.008 &&
1023 ((exists $ENV{LC_ALL} && $ENV{LC_ALL} =~ /utf-?8/i) ||
1024 (exists $ENV{LC_CTYPE} && $ENV{LC_CTYPE} =~ /utf-?8/i) ||
1025 (exists $ENV{LANG} && $ENV{LANG} =~ /utf-?8/i))) {
22149ad2
RGS
1026 print <<EOM;
1027
ced84e60 1028NOTE: if you get an error like this (the Makefile line number may vary):
d7358e6a 1029Makefile:91: *** missing separator
1caec985
DM
1030then set the environment variable LC_ALL to "C" and retry
1031from scratch (re-run perl "Makefile.PL").
806b8cc2 1032(And consider upgrading your Perl to, say, at least Perl 5.8.8.)
50a6311a
RGS
1033(You got this message because you seem to have
1034 an UTF-8 locale active in your shell environment, this used
806b8cc2 1035 to cause broken Makefiles to be created from Makefile.PLs)
3f2ee006 1036EOM
dfffa540 1037 }
3f2ee006
HS
1038 }
1039}
1040
1041&main;
dcf686c9 1042
3f2ee006 1043# EOF