This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
Make Time/HiRes/Makefile.PL produce a Makefile if one is needed
[perl5.git] / ext / 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
3f2ee006
HS
8require 5.002;
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 $SYSCALL_H;
98b50af3 19
046e3f33
JH
20use vars qw($self); # Used in 'sourcing' the hints.
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;
103 $COREincdir = File::Spec->catdir(($updir) x 3);
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
3f2ee006 118 my $ccflags = $Config{'ccflags'} . ' ' . "-I$COREincdir";
98b50af3 119
3f2ee006
HS
120 if ($^O eq 'VMS') {
121 if ($ENV{PERL_CORE}) {
3d036c2b 122 # Fragile if the extensions change hierarchy within
6a20eacc
HS
123 # the Perl core but this should do for now.
124 $cccmd = "$Config{'cc'} /include=([---]) $tmp.c";
3f2ee006
HS
125 } else {
126 my $perl_core = $Config{'installarchlib'};
127 $perl_core =~ s/\]$/.CORE]/;
98b50af3 128 $cccmd = "$Config{'cc'} /include=(perl_root:[000000],$perl_core) $tmp.c";
3f2ee006
HS
129 }
130 }
131
132 if ($args{silent} || !$VERBOSE) {
133 $errornull = "2>/dev/null" unless defined $errornull;
134 } else {
135 $errornull = '';
136 }
137
98b50af3 138 $cccmd = "$Config{'cc'} -o $tmp $ccflags $tmp.c @$LIBS $errornull"
3f2ee006 139 unless defined $cccmd;
98b50af3 140
c1363767 141 if ($^O eq 'VMS') {
3f2ee006
HS
142 open( CMDFILE, ">$tmp.com" );
143 print CMDFILE "\$ SET MESSAGE/NOFACILITY/NOSEVERITY/NOIDENT/NOTEXT\n";
144 print CMDFILE "\$ $cccmd\n";
98b50af3 145 print CMDFILE "\$ IF \$SEVERITY .NE. 1 THEN EXIT 44\n"; # escalate
3f2ee006
HS
146 close CMDFILE;
147 system("\@ $tmp.com");
148 $ok = $?==0;
5d899d7e 149 for ("$tmp.c", "$tmp$obj_ext", "$tmp.com", "$tmp$Config{exe_ext}") {
98b50af3 150 1 while unlink $_;
3f2ee006
HS
151 }
152 }
153 else
154 {
622913ab 155 my $tmp_exe = "$tmp$ld_exeext";
3f2ee006 156 printf "cccmd = $cccmd\n" if $VERBOSE;
622913ab 157 my $res = system($cccmd);
ced84e60 158 $ok = defined($res) && $res == 0 && -s $tmp_exe && -x _;
26e22fd9
RGS
159
160 if ( $ok && exists $args{run} && $args{run}) {
06252d99
RGS
161 my $tmp_exe =
162 File::Spec->catfile(File::Spec->curdir, $tmp_exe);
163 printf "Running $tmp_exe..." if $VERBOSE;
164 if (system($tmp_exe) == 0) {
56c1b3bd 165 $ok = 1;
26e22fd9 166 } else {
56c1b3bd 167 $ok = 0;
ced84e60
SP
168 my $errno = $? >> 8;
169 local $! = $errno;
170 printf <<EOF;
171
172*** The test run of '$tmp_exe' failed: status $?
173*** (the status means: errno = $errno or '$!')
174*** DO NOT PANIC: this just means that *some* functionality will be missing.
175EOF
26e22fd9
RGS
176 }
177 }
622913ab 178 unlink("$tmp.c", $tmp_exe);
3f2ee006
HS
179 }
180 }
5d899d7e 181
26e22fd9 182 return $ok;
3f2ee006
HS
183}
184
75d5269b 185my $TIME_HEADERS = <<EOH;
5d899d7e
JH
186#include "EXTERN.h"
187#include "perl.h"
188#include "XSUB.h"
189#ifdef I_SYS_TYPES
3f2ee006
HS
190# include <sys/types.h>
191#endif
3f2ee006
HS
192#ifdef I_SYS_TIME
193# include <sys/time.h>
194#endif
3f2ee006
HS
195#ifdef I_SYS_SELECT
196# include <sys/select.h> /* struct timeval might be hidden in here */
197#endif
75d5269b
SP
198EOH
199
200sub has_gettimeofday {
201 # confusing but true (if condition true ==> -DHAS_GETTIMEOFDAY already)
202 return 0 if $Config{d_gettimeod};
203 return 1 if try_compile_and_link(<<EOM);
204$TIME_HEADERS
3f2ee006
HS
205static int foo()
206{
207 struct timeval tv;
208 gettimeofday(&tv, 0);
209}
f3370602 210int main(int argc, char** argv)
3f2ee006
HS
211{
212 foo();
213}
214EOM
215 return 0;
216}
217
218sub has_x {
98b50af3 219 my ($x, %args) = @_;
3f2ee006
HS
220
221 return 1 if
222 try_compile_and_link(<<EOM, %args);
223#include "EXTERN.h"
224#include "perl.h"
225#include "XSUB.h"
226
227#ifdef I_UNISTD
228# include <unistd.h>
229#endif
230
231#ifdef I_SYS_TYPES
232# include <sys/types.h>
233#endif
234
235#ifdef I_SYS_TIME
236# include <sys/time.h>
237#endif
238
f3370602 239int main(int argc, char** argv)
3f2ee006
HS
240{
241 $x;
242}
243EOM
244 return 0;
245}
246
26e22fd9 247sub has_nanosleep {
3d0346a5 248 print "testing... ";
26e22fd9
RGS
249 return 1 if
250 try_compile_and_link(<<EOM, run => 1);
251#include <time.h>
252#include <sys/time.h>
253#include <stdio.h>
254#include <stdlib.h>
255#include <errno.h>
256
257/* int nanosleep(const struct timespec *rqtp, struct timespec *rmtp); */
258
f3370602 259int main(int argc, char** argv) {
26e22fd9 260 struct timespec ts1, ts2;
56c1b3bd 261 int ret;
26e22fd9
RGS
262 ts1.tv_sec = 0;
263 ts1.tv_nsec = 750000000;
264 ts2.tv_sec = 0;
265 ts2.tv_nsec = 0;
56c1b3bd 266 errno = 0;
ced84e60 267 ret = nanosleep(&ts1, &ts2); /* E.g. in AIX nanosleep() fails and sets errno to ENOSYS. */
56c1b3bd 268 ret == 0 ? exit(0) : exit(errno ? errno : -1);
26e22fd9
RGS
269}
270EOM
271}
272
4ed0e2d4
RGS
273sub has_include {
274 my ($inc) = @_;
275 return 1 if
276 try_compile_and_link(<<EOM);
277#include "EXTERN.h"
278#include "perl.h"
279#include "XSUB.h"
280
281#include <$inc>
f3370602 282int main(int argc, char** argv)
4ed0e2d4
RGS
283{
284 return 0;
285}
286EOM
287 return 0;
288}
289
170c5524 290sub has_clock_xxx_syscall {
ced84e60
SP
291 my $x = shift;
292 return 0 unless defined $SYSCALL_H;
293 return 1 if
294 try_compile_and_link(<<EOM, run => 1);
295#include "EXTERN.h"
296#include "perl.h"
297#include "XSUB.h"
298#include <$SYSCALL_H>
f3370602 299int main(int argc, char** argv)
ced84e60
SP
300{
301 struct timespec ts;
302 /* Many Linuxes get ENOSYS even though the syscall exists. */
303 /* All implementations are supposed to support CLOCK_REALTIME. */
304 int ret = syscall(SYS_clock_$x, CLOCK_REALTIME, &ts);
305 ret == 0 ? exit(0) : exit(errno ? errno : -1);
306}
307EOM
308}
309
170c5524
SP
310sub has_clock_xxx {
311 my $xxx = shift;
ced84e60
SP
312 return 1 if
313 try_compile_and_link(<<EOM, run => 1);
314#include "EXTERN.h"
315#include "perl.h"
316#include "XSUB.h"
f3370602 317int main(int argc, char** argv)
ced84e60
SP
318{
319 struct timespec ts;
170c5524 320 int ret = clock_$xxx(CLOCK_REALTIME, &ts); /* Many Linuxes get ENOSYS. */
ced84e60
SP
321 /* All implementations are supposed to support CLOCK_REALTIME. */
322 ret == 0 ? exit(0) : exit(errno ? errno : -1);
323}
324EOM
325}
326
170c5524
SP
327sub has_clock {
328 return 1 if
329 try_compile_and_link(<<EOM, run => 1);
330#include "EXTERN.h"
331#include "perl.h"
332#include "XSUB.h"
f3370602 333int main(int argc, char** argv)
170c5524
SP
334{
335 clock_t tictoc;
336 clock_t ret = clock();
337 ret == (clock_t)-1 ? exit(errno ? errno : -1) : exit(0);
338}
339EOM
340}
341
342sub has_clock_nanosleep {
343 return 1 if
344 try_compile_and_link(<<EOM, run => 1);
345#include "EXTERN.h"
346#include "perl.h"
347#include "XSUB.h"
a8fb48f7 348#include <time.h>
f3370602 349int main(int argc, char** argv)
170c5524
SP
350{
351 int ret;
a8fb48f7
SP
352 struct timespec ts1;
353 struct timespec ts2;
170c5524
SP
354 ts1.tv_sec = 0;
355 ts1.tv_nsec = 750000000;;
356 ret = clock_nanosleep(CLOCK_MONOTONIC, 0, &ts1, &ts2);
357 ret == 0 ? exit(0) : exit(errno ? errno : -1);
358}
359EOM
360}
361
a8fb48f7
SP
362sub DEFINE {
363 my ($def, $val) = @_;
364 my $define = defined $val ? "$def=$val" : $def ;
365 unless ($DEFINE =~ /(?:^| )-D\Q$define\E(?: |$)/) {
366 $DEFINE .= " -D$define";
367 }
368}
369
046e3f33
JH
370sub init {
371 my $hints = File::Spec->catfile("hints", "$^O.pl");
372 if (-f $hints) {
373 print "Using hints $hints...\n";
374 local $self;
375 do $hints;
376 if (exists $self->{LIBS}) {
377 $LIBS = $self->{LIBS};
378 print "Extra libraries: @$LIBS...\n";
3f2ee006
HS
379 }
380 }
046e3f33
JH
381
382 $DEFINE = '';
3f2ee006 383
ced84e60 384 if ($Config{d_syscall}) {
a5929ff3 385 print "Have syscall()... looking for syscall.h... ";
ced84e60
SP
386 if (has_include('syscall.h')) {
387 $SYSCALL_H = 'syscall.h';
388 } elsif (has_include('sys/syscall.h')) {
389 $SYSCALL_H = 'sys/syscall.h';
390 }
a5929ff3
RGS
391 } else {
392 print "No syscall()...\n";
ced84e60
SP
393 }
394
a5929ff3
RGS
395 if ($Config{d_syscall}) {
396 if (defined $SYSCALL_H) {
397 print "found <$SYSCALL_H>.\n";
398 } else {
399 print "NOT found.\n";
400 }
ced84e60
SP
401 }
402
98b50af3 403 print "Looking for gettimeofday()... ";
3f2ee006 404 my $has_gettimeofday;
5d899d7e
JH
405 if (exists $Config{d_gettimeod}) {
406 $has_gettimeofday++ if $Config{d_gettimeod};
3f2ee006
HS
407 } elsif (has_gettimeofday()) {
408 $DEFINE .= ' -DHAS_GETTIMEOFDAY';
409 $has_gettimeofday++;
410 }
411
412 if ($has_gettimeofday) {
98b50af3 413 print "found.\n";
3f2ee006
HS
414 } else {
415 die <<EOD
416Your operating system does not seem to have the gettimeofday() function.
417(or, at least, I cannot find it)
418
419There is no way Time::HiRes is going to work.
420
421I am awfully sorry but I cannot go further.
422
423Aborting configuration.
424
425EOD
426 }
427
98b50af3 428 print "Looking for setitimer()... ";
3f2ee006 429 my $has_setitimer;
5d899d7e
JH
430 if (exists $Config{d_setitimer}) {
431 $has_setitimer++ if $Config{d_setitimer};
3f2ee006
HS
432 } elsif (has_x("setitimer(ITIMER_REAL, 0, 0)")) {
433 $has_setitimer++;
434 $DEFINE .= ' -DHAS_SETITIMER';
435 }
436
437 if ($has_setitimer) {
98b50af3 438 print "found.\n";
3f2ee006 439 } else {
98b50af3 440 print "NOT found.\n";
3f2ee006
HS
441 }
442
98b50af3 443 print "Looking for getitimer()... ";
3f2ee006 444 my $has_getitimer;
5d899d7e
JH
445 if (exists $Config{'d_getitimer'}) {
446 $has_getitimer++ if $Config{'d_getitimer'};
3f2ee006
HS
447 } elsif (has_x("getitimer(ITIMER_REAL, 0)")) {
448 $has_getitimer++;
449 $DEFINE .= ' -DHAS_GETITIMER';
450 }
451
452 if ($has_getitimer) {
98b50af3 453 print "found.\n";
3f2ee006 454 } else {
98b50af3 455 print "NOT found.\n";
3f2ee006
HS
456 }
457
458 if ($has_setitimer && $has_getitimer) {
4ed0e2d4 459 print "You have interval timers (both setitimer and getitimer).\n";
3f2ee006 460 } else {
98b50af3 461 print "You do not have interval timers.\n";
3f2ee006
HS
462 }
463
98b50af3
JH
464 print "Looking for ualarm()... ";
465 my $has_ualarm;
5d899d7e
JH
466 if (exists $Config{d_ualarm}) {
467 $has_ualarm++ if $Config{d_ualarm};
3f2ee006
HS
468 } elsif (has_x ("ualarm (0, 0)")) {
469 $has_ualarm++;
470 $DEFINE .= ' -DHAS_UALARM';
471 }
472
473 if ($has_ualarm) {
98b50af3 474 print "found.\n";
3f2ee006 475 } else {
98b50af3
JH
476 print "NOT found.\n";
477 if ($has_setitimer) {
478 print "But you have setitimer().\n";
479 print "We can make a Time::HiRes::ualarm().\n";
3f2ee006
HS
480 }
481 }
482
98b50af3 483 print "Looking for usleep()... ";
3f2ee006 484 my $has_usleep;
5d899d7e
JH
485 if (exists $Config{d_usleep}) {
486 $has_usleep++ if $Config{d_usleep};
3f2ee006
HS
487 } elsif (has_x ("usleep (0)")) {
488 $has_usleep++;
489 $DEFINE .= ' -DHAS_USLEEP';
490 }
491
492 if ($has_usleep) {
98b50af3 493 print "found.\n";
3f2ee006 494 } else {
98b50af3
JH
495 print "NOT found.\n";
496 print "Let's see if you have select()... ";
56c1b3bd 497 if ($Config{'d_select'}) {
98b50af3
JH
498 print "found.\n";
499 print "We can make a Time::HiRes::usleep().\n";
3f2ee006 500 } else {
98b50af3
JH
501 print "NOT found.\n";
502 print "You won't have a Time::HiRes::usleep().\n";
3f2ee006
HS
503 }
504 }
505
98b50af3 506 print "Looking for nanosleep()... ";
3f2ee006 507 my $has_nanosleep;
3d0346a5
SP
508 if ($ENV{FORCE_NANOSLEEP_SCAN}) {
509 print "forced scan... ";
510 if (has_nanosleep()) {
511 $has_nanosleep++;
512 $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
513 }
514 }
515 elsif (exists $Config{d_nanosleep}) {
516 print "believing \$Config{d_nanosleep}... ";
c1363767
JH
517 if ($Config{d_nanosleep}) {
518 $has_nanosleep++;
519 $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
520 }
3d0346a5
SP
521 } elsif ($^O =~ /^(mpeix)$/) {
522 # MPE/iX falsely finds nanosleep from its libc equivalent.
523 print "skipping because in $^O... ";
524 } else {
525 if (has_nanosleep()) {
526 $has_nanosleep++;
527 $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
528 }
3f2ee006
HS
529 }
530
531 if ($has_nanosleep) {
98b50af3 532 print "found.\n";
4ed0e2d4
RGS
533 print "You can mix subsecond sleeps with signals, if you want to.\n";
534 print "(It's still not portable, though.)\n";
3f2ee006 535 } else {
98b50af3 536 print "NOT found.\n";
622913ab
IZ
537 my $nt = ($^O eq 'os2' ? '' : 'not');
538 print "You can$nt mix subsecond sleeps with signals.\n";
4ed0e2d4
RGS
539 print "(It would not be portable anyway.)\n";
540 }
541
ced84e60
SP
542 print "Looking for clock_gettime()... ";
543 my $has_clock_gettime;
544 if (exists $Config{d_clock_gettime}) {
545 $has_clock_gettime++ if $Config{d_clock_gettime}; # Unlikely...
170c5524 546 } elsif (has_clock_xxx('gettime')) {
ced84e60
SP
547 $has_clock_gettime++;
548 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETTIME';
170c5524 549 } elsif (defined $SYSCALL_H && has_clock_xxx_syscall('gettime')) {
ced84e60
SP
550 $has_clock_gettime++;
551 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETTIME -DTIME_HIRES_CLOCK_GETTIME_SYSCALL';
552 }
553
554 if ($has_clock_gettime) {
555 if ($DEFINE =~ /-DTIME_HIRES_CLOCK_GETTIME_SYSCALL/) {
556 print "found (via syscall).\n";
557 } else {
558 print "found.\n";
559 }
560 } else {
561 print "NOT found.\n";
562 }
563
564 print "Looking for clock_getres()... ";
565 my $has_clock_getres;
566 if (exists $Config{d_clock_getres}) {
567 $has_clock_getres++ if $Config{d_clock_getres}; # Unlikely...
170c5524 568 } elsif (has_clock_xxx('getres')) {
ced84e60
SP
569 $has_clock_getres++;
570 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETRES';
170c5524 571 } elsif (defined $SYSCALL_H && has_clock_xxx_syscall('getres')) {
ced84e60
SP
572 $has_clock_getres++;
573 $DEFINE .= ' -DTIME_HIRES_CLOCK_GETRES -DTIME_HIRES_CLOCK_GETRES_SYSCALL';
574 }
575
576 if ($has_clock_getres) {
577 if ($DEFINE =~ /-DTIME_HIRES_CLOCK_GETRES_SYSCALL/) {
578 print "found (via syscall).\n";
579 } else {
580 print "found.\n";
581 }
582 } else {
583 print "NOT found.\n";
584 }
585
170c5524
SP
586 print "Looking for clock_nanosleep()... ";
587 my $has_clock_nanosleep;
588 if (exists $Config{d_clock_nanosleep}) {
589 $has_clock_nanosleep++ if $Config{d_clock_nanosleep}; # Unlikely...
590 } elsif (has_clock_nanosleep()) {
591 $has_clock_nanosleep++;
592 $DEFINE .= ' -DTIME_HIRES_CLOCK_NANOSLEEP';
593 }
594
595 if ($has_clock_nanosleep) {
596 print "found.\n";
597 } else {
598 print "NOT found.\n";
599 }
600
601 print "Looking for clock()... ";
602 my $has_clock;
603 if (exists $Config{d_clock}) {
604 $has_clock++ if $Config{d_clock}; # Unlikely...
605 } elsif (has_clock()) {
606 $has_clock++;
607 $DEFINE .= ' -DTIME_HIRES_CLOCK';
608 }
609
610 if ($has_clock) {
611 print "found.\n";
612 } else {
613 print "NOT found.\n";
614 }
615
f3370602
SP
616 print "Looking for stat() subsecond timestamps...\n";
617
75d5269b
SP
618 print "Trying struct stat st_atimespec.tv_nsec...";
619 my $has_stat_st_xtimespec;
620 if (try_compile_and_link(<<EOM)) {
621$TIME_HEADERS
622#include <sys/stat.h>
f3370602 623int main(int argc, char** argv) {
75d5269b
SP
624 struct stat st;
625 st.st_atimespec.tv_nsec = 0;
626}
627EOM
628 $has_stat_st_xtimespec++;
a8fb48f7 629 DEFINE('TIME_HIRES_STAT', 1);
75d5269b
SP
630 }
631
632 if ($has_stat_st_xtimespec) {
633 print "found.\n";
634 } else {
635 print "NOT found.\n";
636 }
637
638 print "Trying struct stat st_atimensec...";
639 my $has_stat_st_xtimensec;
640 if (try_compile_and_link(<<EOM)) {
641$TIME_HEADERS
642#include <sys/stat.h>
f3370602 643int main(int argc, char** argv) {
75d5269b
SP
644 struct stat st;
645 st.st_atimensec = 0;
646}
647EOM
648 $has_stat_st_xtimensec++;
a8fb48f7 649 DEFINE('TIME_HIRES_STAT', 2);
75d5269b
SP
650 }
651
652 if ($has_stat_st_xtimensec) {
653 print "found.\n";
654 } else {
655 print "NOT found.\n";
656 }
657
658 print "Trying struct stat st_atime_n...";
659 my $has_stat_st_xtime_n;
660 if (try_compile_and_link(<<EOM)) {
661$TIME_HEADERS
662#include <sys/stat.h>
f3370602 663int main(int argc, char** argv) {
75d5269b
SP
664 struct stat st;
665 st.st_atime_n = 0;
666}
667EOM
668 $has_stat_st_xtime_n++;
a8fb48f7 669 DEFINE('TIME_HIRES_STAT', 3);
75d5269b
SP
670 }
671
672 if ($has_stat_st_xtime_n) {
673 print "found.\n";
674 } else {
675 print "NOT found.\n";
676 }
677
678 print "Trying struct stat st_atim.tv_nsec...";
679 my $has_stat_st_xtim;
680 if (try_compile_and_link(<<EOM)) {
681$TIME_HEADERS
682#include <sys/stat.h>
f3370602 683int main(int argc, char** argv) {
75d5269b
SP
684 struct stat st;
685 st.st_atim.tv_nsec = 0;
686}
687EOM
688 $has_stat_st_xtim++;
a8fb48f7 689 DEFINE('TIME_HIRES_STAT', 4);
75d5269b
SP
690 }
691
692 if ($has_stat_st_xtim) {
693 print "found.\n";
694 } else {
695 print "NOT found.\n";
696 }
697
698 print "Trying struct stat st_uatime...";
699 my $has_stat_st_uxtime;
700 if (try_compile_and_link(<<EOM)) {
701$TIME_HEADERS
702#include <sys/stat.h>
f3370602 703int main(int argc, char** argv) {
75d5269b
SP
704 struct stat st;
705 st.st_uatime = 0;
706}
707EOM
708 $has_stat_st_uxtime++;
a8fb48f7 709 DEFINE('TIME_HIRES_STAT', 5);
75d5269b
SP
710 }
711
712 if ($has_stat_st_uxtime) {
713 print "found.\n";
714 } else {
715 print "NOT found.\n";
716 }
717
718 if ($DEFINE =~ /-DTIME_HIRES_STAT=\d+/) {
f3370602 719 print "You seem to have stat() subsecond timestamps.\n";
75d5269b
SP
720 print "(Your struct stat has them, but the filesystems must help.)\n";
721 } else {
722 print "You do not seem to have stat subsecond timestamps.\n";
723 }
724
4ed0e2d4 725 my $has_w32api_windows_h;
170c5524 726
4ed0e2d4
RGS
727 if ($^O eq 'cygwin') {
728 print "Looking for <w32api/windows.h>... ";
729 if (has_include('w32api/windows.h')) {
730 $has_w32api_windows_h++;
a8fb48f7 731 DEFINE('HAS_W32API_WINDOWS_H');
4ed0e2d4
RGS
732 }
733 if ($has_w32api_windows_h) {
734 print "found.\n";
735 } else {
736 print "NOT found.\n";
737 }
3f2ee006
HS
738 }
739
740 if ($DEFINE) {
741 $DEFINE =~ s/^\s+//;
742 if (open(XDEFINE, ">xdefine")) {
743 print XDEFINE $DEFINE, "\n";
744 close(XDEFINE);
745 }
746 }
747}
748
749sub doMakefile {
98b50af3 750 my @makefileopts = ();
3f2ee006
HS
751
752 if ($] >= 5.005) {
753 push (@makefileopts,
754 'AUTHOR' => 'Jarkko Hietaniemi <jhi@iki.fi>',
755 'ABSTRACT_FROM' => 'HiRes.pm',
756 );
a8fb48f7 757 DEFINE('ATLEASTFIVEOHOHFIVE');
3f2ee006
HS
758 }
759
760 push (@makefileopts,
761 'NAME' => 'Time::HiRes',
762 'VERSION_FROM' => 'HiRes.pm', # finds $VERSION
5d899d7e
JH
763 'LIBS' => $LIBS, # e.g., '-lm'
764 'DEFINE' => $DEFINE, # e.g., '-DHAS_SOMETHING'
3f2ee006 765 'XSOPT' => $XSOPT,
ced84e60
SP
766 # Do not even think about 'INC' => '-I/usr/ucbinclude',
767 # Solaris will avenge.
5d899d7e 768 'INC' => '', # e.g., '-I/usr/include/other'
9649b81b 769 'INSTALLDIRS' => ($] >= 5.008 ? 'perl' : 'site'),
3f2ee006
HS
770 'dist' => {
771 'CI' => 'ci -l',
5d899d7e 772 'COMPRESS' => 'gzip -9f',
3f2ee006
HS
773 'SUFFIX' => 'gz',
774 },
775 clean => { FILES => "xdefine" },
1caec985 776 realclean => { FILES=> 'const-c.inc const-xs.inc' },
3f2ee006
HS
777 );
778
9ac5eb64
JH
779 if ($ENV{PERL_CORE}) {
780 push @makefileopts, MAN3PODS => {};
781 }
782
3f2ee006
HS
783 WriteMakefile(@makefileopts);
784}
785
98b50af3
JH
786sub doConstants {
787 if (eval {require ExtUtils::Constant; 1}) {
75d5269b
SP
788 my @names = qw(CLOCK_HIGHRES CLOCK_MONOTONIC
789 CLOCK_PROCESS_CPUTIME_ID
790 CLOCK_REALTIME
791 CLOCK_SOFTTIME
792 CLOCK_THREAD_CPUTIME_ID
793 CLOCK_TIMEOFDAY
794 CLOCKS_PER_SEC
795 ITIMER_REAL ITIMER_VIRTUAL ITIMER_PROF
796 ITIMER_REALPROF
797 TIMER_ABSTIME);
98b50af3 798 foreach (qw (d_usleep d_ualarm d_gettimeofday d_getitimer d_setitimer
170c5524 799 d_nanosleep d_clock_gettime d_clock_getres
75d5269b 800 d_clock d_clock_nanosleep d_hires_stat)) {
98b50af3 801 my $macro = $_;
170c5524 802 if ($macro =~ /^(d_nanosleep|d_clock_gettime|d_clock_getres|d_clock|d_clock_nanosleep)$/) {
82cbdcc3 803 $macro =~ s/^d_(.+)/TIME_HIRES_\U$1/;
75d5269b
SP
804 } elsif ($macro =~ /^(d_hires_stat)$/) {
805 my $d_hires_stat = 0;
806 $d_hires_stat = $1 if ($DEFINE =~ /-DTIME_HIRES_STAT=(\d+)/);
807 push @names, {name => $_, macro => "TIME_HIRES_STAT", value => $d_hires_stat,
808 default => ["IV", "0"]};
809 next;
672f6857 810 } else {
82cbdcc3 811 $macro =~ s/^d_(.+)/HAS_\U$1/;
672f6857 812 }
98b50af3
JH
813 push @names, {name => $_, macro => $macro, value => 1,
814 default => ["IV", "0"]};
815 }
816 ExtUtils::Constant::WriteConstants(
817 NAME => 'Time::HiRes',
818 NAMES => \@names,
819 );
820 } else {
1fbb4de4
RGS
821 my $file;
822 foreach $file ('const-c.inc', 'const-xs.inc') {
98b50af3
JH
823 my $fallback = File::Spec->catfile('fallback', $file);
824 local $/;
825 open IN, "<$fallback" or die "Can't open $fallback: $!";
826 open OUT, ">$file" or die "Can't open $file: $!";
827 print OUT <IN> or die $!;
828 close OUT or die "Can't close $file: $!";
829 close IN or die "Can't close $fallback: $!";
830 }
831 }
832}
3f2ee006 833
98b50af3 834sub main {
34001da3 835 if (-f "Makefile" and -f "xdefine" && !(@ARGV && $ARGV[0] eq '--configure')) {
bf8300de 836 print qq[$0: The "xdefine" exists, skipping the configure step.\n];
e5620114 837 print qq[("$^X $0 --configure" to force the configure step)\n];
3f2ee006 838 } else {
bf8300de
RGS
839 print "Configuring Time::HiRes...\n";
840 1 while unlink("define");
841 if ($^O =~ /Win32/i) {
842 DEFINE('SELECT_IS_BROKEN');
843 $LIBS = [];
844 print "System is $^O, skipping full configure...\n";
845 open(XDEFINE, ">xdefine") or die "$0: Cannot create xdefine: $!\n";
846 close(XDEFINE);
847 } else {
848 init();
849 }
850 doMakefile;
851 doConstants;
3f2ee006 852 }
3f2ee006 853 my $make = $Config{'make'} || "make";
1fbb4de4 854 unless (exists $ENV{PERL_CORE} && $ENV{PERL_CORE}) {
3f2ee006 855 print <<EOM;
3f2ee006 856Now you may issue '$make'. Do not forget also '$make test'.
dfffa540 857EOM
806b8cc2
SP
858 if ($] == 5.008 &&
859 ((exists $ENV{LC_ALL} && $ENV{LC_ALL} =~ /utf-?8/i) ||
860 (exists $ENV{LC_CTYPE} && $ENV{LC_CTYPE} =~ /utf-?8/i) ||
861 (exists $ENV{LANG} && $ENV{LANG} =~ /utf-?8/i))) {
22149ad2
RGS
862 print <<EOM;
863
ced84e60 864NOTE: if you get an error like this (the Makefile line number may vary):
d7358e6a 865Makefile:91: *** missing separator
1caec985
DM
866then set the environment variable LC_ALL to "C" and retry
867from scratch (re-run perl "Makefile.PL").
806b8cc2 868(And consider upgrading your Perl to, say, at least Perl 5.8.8.)
50a6311a
RGS
869(You got this message because you seem to have
870 an UTF-8 locale active in your shell environment, this used
806b8cc2 871 to cause broken Makefiles to be created from Makefile.PLs)
3f2ee006 872EOM
dfffa540 873 }
3f2ee006
HS
874 }
875}
876
877&main;
dcf686c9 878
3f2ee006 879# EOF