#!/usr/bin/perl
#
# In general we trust %Config, but for nanosleep() this trust
-# may be misplaces (it may be linkable but not really functional).
+# may be misplaced (it may be linkable but not really functional).
# Use $ENV{FORCE_NANOSLEEP_SCAN} to force rescanning whether there
# really is hope.
my $DEFINE;
my $LIBS = [];
my $XSOPT = '';
+my $SYSCALL_H;
use vars qw($self); # Used in 'sourcing' the hints.
my $tmp_exe = "$tmp$ld_exeext";
printf "cccmd = $cccmd\n" if $VERBOSE;
my $res = system($cccmd);
- $ok = defined($res) && $res==0 && -s $tmp_exe && -x _;
+ $ok = defined($res) && $res == 0 && -s $tmp_exe && -x _;
if ( $ok && exists $args{run} && $args{run}) {
- my $abs_tmp_exe =
- File::Spec->
- catfile(File::Spec->rel2abs(File::Spec->curdir),
- $tmp_exe);
- printf "Running $abs_tmp_exe..." if $VERBOSE;
- if (system($abs_tmp_exe) == 0) {
+ my $tmp_exe =
+ File::Spec->catfile(File::Spec->curdir, $tmp_exe);
+ printf "Running $tmp_exe..." if $VERBOSE;
+ if (system($tmp_exe) == 0) {
$ok = 1;
} else {
$ok = 0;
- print "[ system('$abs_tmp_exe') failed: status $? ] ";
+ my $errno = $? >> 8;
+ local $! = $errno;
+ printf <<EOF;
+
+*** The test run of '$tmp_exe' failed: status $?
+*** (the status means: errno = $errno or '$!')
+*** DO NOT PANIC: this just means that *some* functionality will be missing.
+EOF
}
}
unlink("$tmp.c", $tmp_exe);
}
sub has_nanosleep {
- print "Trying out nanosleep... ";
+ print "testing... ";
return 1 if
try_compile_and_link(<<EOM, run => 1);
#include <time.h>
ts2.tv_sec = 0;
ts2.tv_nsec = 0;
errno = 0;
- ret = nanosleep(&ts1, &ts2); /* E.g. in AIX nanosleep() fail and set errno to ENOSYS. */
+ ret = nanosleep(&ts1, &ts2); /* E.g. in AIX nanosleep() fails and sets errno to ENOSYS. */
ret == 0 ? exit(0) : exit(errno ? errno : -1);
}
EOM
return 0;
}
+sub has_clock_xxx_syscall {
+ my $x = shift;
+ return 0 unless defined $SYSCALL_H;
+ return 1 if
+ try_compile_and_link(<<EOM, run => 1);
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+#include <$SYSCALL_H>
+int main _((int argc, char** argv, char** env))
+{
+ struct timespec ts;
+ /* Many Linuxes get ENOSYS even though the syscall exists. */
+ /* All implementations are supposed to support CLOCK_REALTIME. */
+ int ret = syscall(SYS_clock_$x, CLOCK_REALTIME, &ts);
+ ret == 0 ? exit(0) : exit(errno ? errno : -1);
+}
+EOM
+}
+
+sub has_clock_xxx {
+ my $xxx = shift;
+ return 1 if
+ try_compile_and_link(<<EOM, run => 1);
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+int main _((int argc, char** argv, char** env))
+{
+ struct timespec ts;
+ int ret = clock_$xxx(CLOCK_REALTIME, &ts); /* Many Linuxes get ENOSYS. */
+ /* All implementations are supposed to support CLOCK_REALTIME. */
+ ret == 0 ? exit(0) : exit(errno ? errno : -1);
+}
+EOM
+}
+
+sub has_clock {
+ return 1 if
+ try_compile_and_link(<<EOM, run => 1);
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+int main _((int argc, char** argv, char** env))
+{
+ clock_t tictoc;
+ clock_t ret = clock();
+ ret == (clock_t)-1 ? exit(errno ? errno : -1) : exit(0);
+}
+EOM
+}
+
+sub has_clock_nanosleep {
+ return 1 if
+ try_compile_and_link(<<EOM, run => 1);
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+int main _((int argc, char** argv, char** env))
+{
+ int ret;
+ struct timerspec ts1;
+ struct timerspec ts2;
+ ts1.tv_sec = 0;
+ ts1.tv_nsec = 750000000;;
+ ret = clock_nanosleep(CLOCK_MONOTONIC, 0, &ts1, &ts2);
+ ret == 0 ? exit(0) : exit(errno ? errno : -1);
+}
+EOM
+}
+
sub init {
my $hints = File::Spec->catfile("hints", "$^O.pl");
if (-f $hints) {
$DEFINE = '';
+ if ($Config{d_syscall}) {
+ print "Have syscall()... looking for syscall.h... ";
+ if (has_include('syscall.h')) {
+ $SYSCALL_H = 'syscall.h';
+ } elsif (has_include('sys/syscall.h')) {
+ $SYSCALL_H = 'sys/syscall.h';
+ }
+ } else {
+ print "No syscall()...\n";
+ }
+
+ if ($Config{d_syscall}) {
+ if (defined $SYSCALL_H) {
+ print "found <$SYSCALL_H>.\n";
+ } else {
+ print "NOT found.\n";
+ }
+ }
+
print "Looking for gettimeofday()... ";
my $has_gettimeofday;
if (exists $Config{d_gettimeod}) {
print "Looking for nanosleep()... ";
my $has_nanosleep;
- if (exists $Config{d_nanosleep} && !$ENV{FORCE_NANOSLEEP_SCAN}) {
- # Believe $Config{d_nanosleep}.
+ if ($ENV{FORCE_NANOSLEEP_SCAN}) {
+ print "forced scan... ";
+ if (has_nanosleep()) {
+ $has_nanosleep++;
+ $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
+ }
+ }
+ elsif (exists $Config{d_nanosleep}) {
+ print "believing \$Config{d_nanosleep}... ";
if ($Config{d_nanosleep}) {
$has_nanosleep++;
$DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
}
- } elsif ($^O ne 'mpeix' && # MPE/iX falsely finds nanosleep.
- has_nanosleep()) {
- $has_nanosleep++;
- $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
+ } elsif ($^O =~ /^(mpeix)$/) {
+ # MPE/iX falsely finds nanosleep from its libc equivalent.
+ print "skipping because in $^O... ";
+ } else {
+ if (has_nanosleep()) {
+ $has_nanosleep++;
+ $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
+ }
}
if ($has_nanosleep) {
print "(It would not be portable anyway.)\n";
}
+ print "Looking for clock_gettime()... ";
+ my $has_clock_gettime;
+ if (exists $Config{d_clock_gettime}) {
+ $has_clock_gettime++ if $Config{d_clock_gettime}; # Unlikely...
+ } elsif (has_clock_xxx('gettime')) {
+ $has_clock_gettime++;
+ $DEFINE .= ' -DTIME_HIRES_CLOCK_GETTIME';
+ } elsif (defined $SYSCALL_H && has_clock_xxx_syscall('gettime')) {
+ $has_clock_gettime++;
+ $DEFINE .= ' -DTIME_HIRES_CLOCK_GETTIME -DTIME_HIRES_CLOCK_GETTIME_SYSCALL';
+ }
+
+ if ($has_clock_gettime) {
+ if ($DEFINE =~ /-DTIME_HIRES_CLOCK_GETTIME_SYSCALL/) {
+ print "found (via syscall).\n";
+ } else {
+ print "found.\n";
+ }
+ } else {
+ print "NOT found.\n";
+ }
+
+ print "Looking for clock_getres()... ";
+ my $has_clock_getres;
+ if (exists $Config{d_clock_getres}) {
+ $has_clock_getres++ if $Config{d_clock_getres}; # Unlikely...
+ } elsif (has_clock_xxx('getres')) {
+ $has_clock_getres++;
+ $DEFINE .= ' -DTIME_HIRES_CLOCK_GETRES';
+ } elsif (defined $SYSCALL_H && has_clock_xxx_syscall('getres')) {
+ $has_clock_getres++;
+ $DEFINE .= ' -DTIME_HIRES_CLOCK_GETRES -DTIME_HIRES_CLOCK_GETRES_SYSCALL';
+ }
+
+ if ($has_clock_getres) {
+ if ($DEFINE =~ /-DTIME_HIRES_CLOCK_GETRES_SYSCALL/) {
+ print "found (via syscall).\n";
+ } else {
+ print "found.\n";
+ }
+ } else {
+ print "NOT found.\n";
+ }
+
+ print "Looking for clock_nanosleep()... ";
+ my $has_clock_nanosleep;
+ if (exists $Config{d_clock_nanosleep}) {
+ $has_clock_nanosleep++ if $Config{d_clock_nanosleep}; # Unlikely...
+ } elsif (has_clock_nanosleep()) {
+ $has_clock_nanosleep++;
+ $DEFINE .= ' -DTIME_HIRES_CLOCK_NANOSLEEP';
+ }
+
+ if ($has_clock_nanosleep) {
+ print "found.\n";
+ } else {
+ print "NOT found.\n";
+ }
+
+ print "Looking for clock()... ";
+ my $has_clock;
+ if (exists $Config{d_clock}) {
+ $has_clock++ if $Config{d_clock}; # Unlikely...
+ } elsif (has_clock()) {
+ $has_clock++;
+ $DEFINE .= ' -DTIME_HIRES_CLOCK';
+ }
+
+ if ($has_clock) {
+ print "found.\n";
+ } else {
+ print "NOT found.\n";
+ }
+
my $has_w32api_windows_h;
+
if ($^O eq 'cygwin') {
print "Looking for <w32api/windows.h>... ";
if (has_include('w32api/windows.h')) {
'LIBS' => $LIBS, # e.g., '-lm'
'DEFINE' => $DEFINE, # e.g., '-DHAS_SOMETHING'
'XSOPT' => $XSOPT,
- # do not even think about 'INC' => '-I/usr/ucbinclude', Solaris will avenge.
+ # Do not even think about 'INC' => '-I/usr/ucbinclude',
+ # Solaris will avenge.
'INC' => '', # e.g., '-I/usr/include/other'
- 'INSTALLDIRS' => 'perl',
+ 'INSTALLDIRS' => ($] >= 5.008 ? 'perl' : 'site'),
'dist' => {
'CI' => 'ci -l',
'COMPRESS' => 'gzip -9f',
sub doConstants {
if (eval {require ExtUtils::Constant; 1}) {
- my @names = (qw(ITIMER_REAL ITIMER_VIRTUAL ITIMER_PROF
- ITIMER_REALPROF));
+ my @names = (qw(CLOCK_HIGHRES CLOCK_MONOTONIC
+ CLOCK_PROCESS_CPUTIME_ID
+ CLOCK_REALTIME
+ CLOCK_SOFTTIME
+ CLOCK_THREAD_CPUTIME_ID
+ CLOCK_TIMEOFDAY
+ CLOCKS_PER_SEC
+ ITIMER_REAL ITIMER_VIRTUAL ITIMER_PROF
+ ITIMER_REALPROF
+ TIMER_ABSTIME));
foreach (qw (d_usleep d_ualarm d_gettimeofday d_getitimer d_setitimer
- d_nanosleep)) {
+ d_nanosleep d_clock_gettime d_clock_getres
+ d_clock d_clock_nanosleep)) {
my $macro = $_;
- if ($macro eq 'd_nanosleep') {
- $macro =~ s/d_(.*)/TIME_HIRES_\U$1/;
+ if ($macro =~ /^(d_nanosleep|d_clock_gettime|d_clock_getres|d_clock|d_clock_nanosleep)$/) {
+ $macro =~ s/^d_(.+)/TIME_HIRES_\U$1/;
} else {
- $macro =~ s/d_(.*)/HAS_\U$1/;
+ $macro =~ s/^d_(.+)/HAS_\U$1/;
}
push @names, {name => $_, macro => $macro, value => 1,
default => ["IV", "0"]};
if ($^O =~ /Win32/i) {
$DEFINE = '-DSELECT_IS_BROKEN';
$LIBS = [];
+ print "System is $^O, skipping full configure...\n";
} else {
init();
}
(exists $ENV{LC_CTYPE} && $ENV{LC_CTYPE} =~ /utf-?8/i) ||
(exists $ENV{LANG} && $ENV{LANG} =~ /utf-?8/i)) {
print <<EOM;
-NOTE: if you get an error like this (the line number may vary):
+NOTE: if you get an error like this (the Makefile line number may vary):
Makefile:91: *** missing separator
then set the environment variable LC_ALL to "C" and retry
from scratch (re-run perl "Makefile.PL").
projects / p5sagit/p5-mst-13.2.git / blobdiff