[p5sagit/p5-mst-13.2.git] / ext / Time / HiRes / Makefile.PL


# See lib/ExtUtils/MakeMaker.pm for details of how to influence
# the contents of the Makefile that is written.
#

require 5.002;

use Config;
use ExtUtils::MakeMaker;
use strict;

my $VERBOSE = $ENV{VERBOSE};
my $DEFINE;
my $LIBS;
my $XSOPT;

unless($ENV{PERL_CORE}) { # This trick from Encode/Makefile.PL.
    $ENV{PERL_CORE} = 1 if ($^X =~ m{\bminiperl[^/\\\]>:]*$}o);
}

# Perls 5.002 and 5.003 did not have File::Spec, fake what we need.

sub my_dirsep {
    $^O eq 'VMS' ? '.' :
	$^O =~ /mswin32|netware|djgpp/i ? '\\' :
	    $^O eq 'MacOS' ? ':'
		: '/';
}

sub my_catdir {
    shift;
    my $catdir = join(my_dirsep, @_);
    $^O eq 'VMS' ? "[$catdir]" : $catdir;
}

sub my_catfile {
    shift;
    return join(my_dirsep, @_) unless $^O eq 'VMS';
    my $file = pop;
    return my_catdir (undef, @_) . $file;
}

sub my_updir {
    shift;
    $^O eq 'VMS' ? "-" : "..";
}

BEGIN {
    eval { require File::Spec };
    if ($@) {
	*File::Spec::catdir = \&my_catdir;
	*File::Spec::updir  = \&my_updir;
	*File::Spec::catfile = \&my_catfile;
    }
}

# Avoid 'used only once' warnings.
my $nop1 = *File::Spec::catdir;
my $nop2 = *File::Spec::updir;
my $nop3 = *File::Spec::catfile;

# if you have 5.004_03 (and some slightly older versions?), xsubpp
# tries to generate line numbers in the C code generated from the .xs.
# unfortunately, it is a little buggy around #ifdef'd code.
# my choice is leave it in and have people with old perls complain 
# about the "Usage" bug, or leave it out and be unable to compile myself
# without changing it, and then I'd always forget to change it before a 
# release. Sorry, Edward :)

sub TMPDIR {
    my $TMPDIR =
	(grep(defined $_ && -d $_ && -w _,
	      ((defined $ENV{'TMPDIR'} ? $ENV{'TMPDIR'} : undef),
	       qw(/var/tmp /usr/tmp /tmp c:/temp))))[0];
    $TMPDIR || die "Cannot find writable temporary directory.\n";
}

sub try_compile_and_link {
    my ($c, %args) = @_;

    my ($ok) = 0;
    my ($tmp) = (($^O eq 'VMS') ? "sys\$scratch:tmp$$" : TMPDIR() . '/' . "tmp$$");
    local(*TMPC);

    my $obj_ext = $Config{obj_ext} || ".o";
    unlink("$tmp.c", "$tmp$obj_ext");

    if (open(TMPC, ">$tmp.c")) {
	print TMPC $c;
	close(TMPC);

	my $cccmd = $args{cccmd};

	my $errornull;

	my $COREincdir;

	if ($ENV{PERL_CORE}) {
	    my $updir = File::Spec->updir;
	    $COREincdir = File::Spec->catdir(($updir) x 3);
	} else {
	    $COREincdir = File::Spec->catdir($Config{'archlibexp'}, 'CORE');
	}

	my $ccflags = $Config{'ccflags'} . ' ' . "-I$COREincdir";

	if ($^O eq 'VMS') {
	    if ($ENV{PERL_CORE}) {
		# Fragile if the extensions change hierachy within
		# the Perl core but this should do for now.
                $cccmd = "$Config{'cc'} /include=([---]) $tmp.c";
	    } else {
		my $perl_core = $Config{'installarchlib'};
		$perl_core =~ s/\]$/.CORE]/;
                $cccmd = "$Config{'cc'} /include=(perl_root:[000000],$perl_core) $tmp.c";
	    }
        }

        if ($args{silent} || !$VERBOSE) {
	    $errornull = "2>/dev/null" unless defined $errornull;
	} else {
	    $errornull = '';
	}

        $cccmd = "$Config{'cc'} -o $tmp $ccflags $tmp.c @$LIBS $errornull"
	    unless defined $cccmd;

	if ($^O eq 'VMS') {
	    open( CMDFILE, ">$tmp.com" );
	    print CMDFILE "\$ SET MESSAGE/NOFACILITY/NOSEVERITY/NOIDENT/NOTEXT\n";
	    print CMDFILE "\$ $cccmd\n";
	    print CMDFILE "\$ IF \$SEVERITY .NE. 1 THEN EXIT 44\n"; # escalate
	    close CMDFILE;
	    system("\@ $tmp.com");
	    $ok = $?==0;
	    for ("$tmp.c", "$tmp$obj_ext", "$tmp.com", "$tmp$Config{exe_ext}") { 
		1 while unlink $_;
	    }
        }
        else
        {
	    printf "cccmd = $cccmd\n" if $VERBOSE;
	    system($cccmd);
	    $ok = -s $tmp && -x _;
	    unlink("$tmp.c", $tmp);
        }
    }
    
    $ok;
}

sub has_gettimeofday {
    # confusing but true (if condition true ==> -DHAS_GETTIMEOFDAY already)
    return 0 if $Config{'d_gettimeod'} eq 'define';
    return 1 if try_compile_and_link(<<EOM);
#include "EXTERN.h" 
#include "perl.h" 
#include "XSUB.h" 
#ifdef I_SYS_TYPES 
#   include <sys/types.h>
#endif

#ifdef I_SYS_TIME
#   include <sys/time.h>
#endif

#ifdef I_SYS_SELECT
#   include <sys/select.h>	/* struct timeval might be hidden in here */
#endif
static int foo()
{
    struct timeval tv;
    gettimeofday(&tv, 0);
}
int main _((int argc, char** argv, char** env))
{
    foo();
}
EOM
    return 0;
}

sub has_x {
    my ($x, %args) = @_;

    return 1 if
    try_compile_and_link(<<EOM, %args);
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#ifdef I_UNISTD
#   include <unistd.h>
#endif

#ifdef I_SYS_TYPES
#   include <sys/types.h>
#endif

#ifdef I_SYS_TIME
#   include <sys/time.h>
#endif

int main _((int argc, char** argv, char** env))
{
	$x;
}
EOM
    return 0;
}

sub unixinit {
    $DEFINE = '';

    $LIBS = [];

    # this might break the link, try it if it can't find some things you 
    # honestly think should be in there...
    # $LIBS = ['-lucb -lbsd'];

    # ... but ucb is poison for Solaris, and probably Linux. honest.
    $LIBS = [] if $Config{'osname'} eq 'solaris';
    $LIBS = [] if $Config{'osname'} eq 'linux';
    $LIBS = ['-lm'] if $Config{'osname'} =~ /sco/i;
    $LIBS = ['-lc'] if $Config{'osname'} =~ /dynixptx/i;

    # For nanosleep
    push @$LIBS, '-lrt'		unless $Config{'osname'} =~ /irix/;
    push @$LIBS, '-lposix4'	;

    my @goodlibs;

    select(STDOUT);
    $| = 1;

    print "Checking for libraries...\n";
    my $lib;
    for $lib (@$LIBS) {
	print "Checking for $lib... ";
	$LIBS = [ $lib ];
	if ($Config{libs} =~ /\b$lib\b/ || has_x("time(0)")) {
	    push @goodlibs, $lib;
	    print "found.\n";
	} else {
	    print "NOT found.\n";
	}
    }
    $LIBS = [ @goodlibs ];
    print @$LIBS ?
	  "You have extra libraries: @$LIBS.\n" :
          "You have no applicable extra libraries.\n";

    print "Looking for gettimeofday()... ";
    my $has_gettimeofday;
    if ($Config{'d_gettimeod'}) {
	$has_gettimeofday++;
    } elsif (has_gettimeofday()) {
	$DEFINE .= ' -DHAS_GETTIMEOFDAY';
	$has_gettimeofday++;
    }

    if ($has_gettimeofday) {
	print "found.\n";
    } else {
	die <<EOD
Your operating system does not seem to have the gettimeofday() function.
(or, at least, I cannot find it)

There is no way Time::HiRes is going to work.

I am awfully sorry but I cannot go further.

Aborting configuration.

EOD
    }

    print "Looking for setitimer()... ";
    my $has_setitimer;
    if ($Config{d_setitimer}) {
        $has_setitimer++;
    } elsif (has_x("setitimer(ITIMER_REAL, 0, 0)")) {
        $has_setitimer++;
        $DEFINE .= ' -DHAS_SETITIMER';
    }

    if ($has_setitimer) {
        print "found.\n";
    } else {
	print "NOT found.\n";
    }

    print "Looking for getitimer()... ";
    my $has_getitimer;
    if ($Config{d_getitimer}) {
        $has_getitimer++;
    } elsif (has_x("getitimer(ITIMER_REAL, 0)")) {
        $has_getitimer++;
        $DEFINE .= ' -DHAS_GETITIMER';
    }

    if ($has_getitimer) {
        print "found.\n";
    } else {
	print "NOT found.\n";
    }

    if ($has_setitimer && $has_getitimer) {
	print "You have interval timers (both setitimer and setitimer).\n";
    } else {
	print "You do not have interval timers.\n";
    }

    print "Looking for ualarm()... ";
    my $has_ualarm;
    if ($Config{d_ualarm}) {
        $has_ualarm++;
    } elsif (has_x ("ualarm (0, 0)")) {
        $has_ualarm++;
	$DEFINE .= ' -DHAS_UALARM';
    }

    if ($has_ualarm) {
        print "found.\n";
    } else {
	print "NOT found.\n";
	if ($has_setitimer) {
	    print "But you have setitimer().\n";
	    print "We can make a Time::HiRes::ualarm().\n";
	}
    }

    print "Looking for usleep()... ";
    my $has_usleep;
    if ($Config{d_usleep}) {
	$has_usleep++;
    } elsif (has_x ("usleep (0)")) {
	$has_usleep++;
	$DEFINE .= ' -DHAS_USLEEP';
    }

    if ($has_usleep) {
	print "found.\n";
    } else {
	print "NOT found.\n";
        print "Let's see if you have select()... ";
        if ($Config{'d_select'} eq 'define') {
	    print "found.\n";
	    print "We can make a Time::HiRes::usleep().\n";
	} else {
	    print "NOT found.\n";
	    print "You won't have a Time::HiRes::usleep().\n";
	}
    }

    print "Looking for nanosleep()... ";
    my $has_nanosleep;
    if ($Config{d_nanosleep}) {
	$has_nanosleep++;
    } elsif (has_x ("nanosleep (NULL, NULL)")) {
	$has_nanosleep++;
	$DEFINE .= ' -DHAS_NANOSLEEP';
    }

    if ($has_nanosleep) {
	print "found.\n";
        print "You can mix subsecond sleeps with signals.\n";
    } else {
	print "NOT found.\n";
        print "You cannot mix subsecond sleeps with signals.\n";
    }

    if ($DEFINE) {
        $DEFINE =~ s/^\s+//;
        if (open(XDEFINE, ">xdefine")) {
	    print XDEFINE $DEFINE, "\n";
	    close(XDEFINE);
        }
    }
}

sub doMakefile {
    my @makefileopts = ();

    if ($] >= 5.005) {
	push (@makefileopts,
	    'AUTHOR'    => 'Jarkko Hietaniemi <jhi@iki.fi>',
	    'ABSTRACT_FROM' => 'HiRes.pm',
	);
	$DEFINE .= " -DATLEASTFIVEOHOHFIVE";
    }

    push (@makefileopts,
	'NAME'	=> 'Time::HiRes',
	'VERSION_FROM' => 'HiRes.pm', # finds $VERSION
	'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.
	'INC'	=> '',     # e.g., '-I/usr/include/other' 
	'INSTALLDIRS' => 'perl',
	'dist'      => {
	    'CI'       => 'ci -l',
	    'COMPRESS' => 'gzip -9f', 
	    'SUFFIX'   => 'gz',
	},
        clean => { FILES => "xdefine" },
        realclean => {FILES=> 'const-c.inc const-xs.inc'},
    );

    WriteMakefile(@makefileopts);
}

sub doConstants {
    if (eval {require ExtUtils::Constant; 1}) {
	my @names = (qw(ITIMER_REAL ITIMER_VIRTUAL ITIMER_PROF
			ITIMER_REALPROF));
	foreach (qw (d_usleep d_ualarm d_gettimeofday d_getitimer d_setitimer
		     d_nanosleep)) {
	    my $macro = $_;
	    $macro =~ s/d_(.*)/HAS_\U$1/;
	    push @names, {name => $_, macro => $macro, value => 1,
			  default => ["IV", "0"]};
	}
	ExtUtils::Constant::WriteConstants(
					   NAME => 'Time::HiRes',
					   NAMES => \@names,
					  );
    } else {
	foreach my $file ('const-c.inc', 'const-xs.inc') {
	    my $fallback = File::Spec->catfile('fallback', $file);
	    local $/;
	    open IN, "<$fallback" or die "Can't open $fallback: $!";
	    open OUT, ">$file" or die "Can't open $file: $!";
	    print OUT <IN> or die $!;
	    close OUT or die "Can't close $file: $!";
	    close IN or die "Can't close $fallback: $!";
	}
    }
}

sub main {
    print "Configuring Time::HiRes...\n";

    if ($^O =~ /Win32/i) {
      $DEFINE = '-DSELECT_IS_BROKEN';
      $LIBS = [''];
    } else {
      unixinit();
    }
    doMakefile;
    doConstants;
    my $make = $Config{'make'} || "make";
    unless ($ENV{PERL_CORE}) {
	print  <<EOM;
Now you may issue '$make'.  Do not forget also '$make test'.
EOM
    }
}

&main;

# EOF
Commit	Line	Data
3f2ee006	1
dcf686c9	2	# See lib/ExtUtils/MakeMaker.pm for details of how to influence
	3	# the contents of the Makefile that is written.
	4	#
	5
3f2ee006	6	require 5.002;
	7
	8	use Config;
dcf686c9	9	use ExtUtils::MakeMaker;
98b50af3	10	use strict;
3f2ee006	11
3f2ee006	12	my $VERBOSE = $ENV{VERBOSE};
98b50af3	13	my $DEFINE;
	14	my $LIBS;
	15	my $XSOPT;
	16
	17	unless($ENV{PERL_CORE}) { # This trick from Encode/Makefile.PL.
	18	$ENV{PERL_CORE} = 1 if ($^X =~ m{\bminiperl[^/\\\]>:]*$}o);
	19	}
	20
	21	# Perls 5.002 and 5.003 did not have File::Spec, fake what we need.
3f2ee006	22
	23	sub my_dirsep {
	24	$^O eq 'VMS' ? '.' :
	25	$^O =~ /mswin32\|netware\|djgpp/i ? '\\' :
	26	$^O eq 'MacOS' ? ':'
	27	: '/';
	28	}
	29
	30	sub my_catdir {
	31	shift;
	32	my $catdir = join(my_dirsep, @_);
98b50af3	33	$^O eq 'VMS' ? "[$catdir]" : $catdir;
	34	}
	35
	36	sub my_catfile {
	37	shift;
	38	return join(my_dirsep, @_) unless $^O eq 'VMS';
	39	my $file = pop;
	40	return my_catdir (undef, @_) . $file;
3f2ee006	41	}
	42
	43	sub my_updir {
	44	shift;
	45	$^O eq 'VMS' ? "-" : "..";
	46	}
	47
	48	BEGIN {
	49	eval { require File::Spec };
	50	if ($@) {
	51	*File::Spec::catdir = \&my_catdir;
	52	*File::Spec::updir = \&my_updir;
98b50af3	53	*File::Spec::catfile = \&my_catfile;
3f2ee006	54	}
	55	}
	56
98b50af3	57	# Avoid 'used only once' warnings.
	58	my $nop1 = *File::Spec::catdir;
	59	my $nop2 = *File::Spec::updir;
	60	my $nop3 = *File::Spec::catfile;
	61
3f2ee006	62	# if you have 5.004_03 (and some slightly older versions?), xsubpp
	63	# tries to generate line numbers in the C code generated from the .xs.
	64	# unfortunately, it is a little buggy around #ifdef'd code.
	65	# my choice is leave it in and have people with old perls complain
	66	# about the "Usage" bug, or leave it out and be unable to compile myself
	67	# without changing it, and then I'd always forget to change it before a
	68	# release. Sorry, Edward :)
	69
	70	sub TMPDIR {
	71	my $TMPDIR =
	72	(grep(defined $_ && -d $_ && -w _,
	73	((defined $ENV{'TMPDIR'} ? $ENV{'TMPDIR'} : undef),
a0c8e3cf	74	qw(/var/tmp /usr/tmp /tmp c:/temp))))[0];
3f2ee006	75	$TMPDIR \|\| die "Cannot find writable temporary directory.\n";
	76	}
	77
	78	sub try_compile_and_link {
	79	my ($c, %args) = @_;
	80
	81	my ($ok) = 0;
98b50af3	82	my ($tmp) = (($^O eq 'VMS') ? "sys\$scratch:tmp$$" : TMPDIR() . '/' . "tmp$$");
3f2ee006	83	local(*TMPC);
	84
	85	my $obj_ext = $Config{obj_ext} \|\| ".o";
	86	unlink("$tmp.c", "$tmp$obj_ext");
	87
	88	if (open(TMPC, ">$tmp.c")) {
	89	print TMPC $c;
	90	close(TMPC);
	91
98b50af3	92	my $cccmd = $args{cccmd};
3f2ee006	93
	94	my $errornull;
	95
	96	my $COREincdir;
98b50af3	97
3f2ee006	98	if ($ENV{PERL_CORE}) {
	99	my $updir = File::Spec->updir;
	100	$COREincdir = File::Spec->catdir(($updir) x 3);
	101	} else {
	102	$COREincdir = File::Spec->catdir($Config{'archlibexp'}, 'CORE');
	103	}
98b50af3	104
3f2ee006	105	my $ccflags = $Config{'ccflags'} . ' ' . "-I$COREincdir";
98b50af3	106
3f2ee006	107	if ($^O eq 'VMS') {
3f2ee006	108	if ($ENV{PERL_CORE}) {
6a20eacc	109	# Fragile if the extensions change hierachy within
	110	# the Perl core but this should do for now.
	111	$cccmd = "$Config{'cc'} /include=([---]) $tmp.c";
3f2ee006	112	} else {
	113	my $perl_core = $Config{'installarchlib'};
	114	$perl_core =~ s/\]$/.CORE]/;
98b50af3	115	$cccmd = "$Config{'cc'} /include=(perl_root:[000000],$perl_core) $tmp.c";
3f2ee006	116	}
	117	}
	118
	119	if ($args{silent} \|\| !$VERBOSE) {
	120	$errornull = "2>/dev/null" unless defined $errornull;
	121	} else {
	122	$errornull = '';
	123	}
	124
98b50af3	125	$cccmd = "$Config{'cc'} -o $tmp $ccflags $tmp.c @$LIBS $errornull"
3f2ee006	126	unless defined $cccmd;
98b50af3	127
3f2ee006	128	if ($^O eq 'VMS') {
	129	open( CMDFILE, ">$tmp.com" );
	130	print CMDFILE "\$ SET MESSAGE/NOFACILITY/NOSEVERITY/NOIDENT/NOTEXT\n";
	131	print CMDFILE "\$ $cccmd\n";
98b50af3	132	print CMDFILE "\$ IF \$SEVERITY .NE. 1 THEN EXIT 44\n"; # escalate
3f2ee006	133	close CMDFILE;
	134	system("\@ $tmp.com");
	135	$ok = $?==0;
	136	for ("$tmp.c", "$tmp$obj_ext", "$tmp.com", "$tmp$Config{exe_ext}") {
98b50af3	137	1 while unlink $_;
3f2ee006	138	}
	139	}
	140	else
	141	{
	142	printf "cccmd = $cccmd\n" if $VERBOSE;
	143	system($cccmd);
	144	$ok = -s $tmp && -x _;
	145	unlink("$tmp.c", $tmp);
	146	}
	147	}
	148
	149	$ok;
	150	}
	151
	152	sub has_gettimeofday {
	153	# confusing but true (if condition true ==> -DHAS_GETTIMEOFDAY already)
	154	return 0 if $Config{'d_gettimeod'} eq 'define';
98b50af3	155	return 1 if try_compile_and_link(<<EOM);
3f2ee006	156	#include "EXTERN.h"
	157	#include "perl.h"
	158	#include "XSUB.h"
	159	#ifdef I_SYS_TYPES
	160	# include <sys/types.h>
	161	#endif
	162
	163	#ifdef I_SYS_TIME
	164	# include <sys/time.h>
	165	#endif
	166
	167	#ifdef I_SYS_SELECT
	168	# include <sys/select.h> /* struct timeval might be hidden in here */
	169	#endif
	170	static int foo()
	171	{
	172	struct timeval tv;
	173	gettimeofday(&tv, 0);
	174	}
	175	int main _((int argc, char argv, char env))
	176	{
	177	foo();
	178	}
	179	EOM
	180	return 0;
	181	}
	182
	183	sub has_x {
98b50af3	184	my ($x, %args) = @_;
3f2ee006	185
	186	return 1 if
	187	try_compile_and_link(<<EOM, %args);
	188	#include "EXTERN.h"
	189	#include "perl.h"
	190	#include "XSUB.h"
	191
	192	#ifdef I_UNISTD
	193	# include <unistd.h>
	194	#endif
	195
	196	#ifdef I_SYS_TYPES
	197	# include <sys/types.h>
	198	#endif
	199
	200	#ifdef I_SYS_TIME
	201	# include <sys/time.h>
	202	#endif
	203
	204	int main _((int argc, char argv, char env))
	205	{
	206	$x;
	207	}
	208	EOM
	209	return 0;
	210	}
	211
	212	sub unixinit {
	213	$DEFINE = '';
	214
	215	$LIBS = [];
	216
	217	# this might break the link, try it if it can't find some things you
	218	# honestly think should be in there...
	219	# $LIBS = ['-lucb -lbsd'];
	220
	221	# ... but ucb is poison for Solaris, and probably Linux. honest.
	222	$LIBS = [] if $Config{'osname'} eq 'solaris';
	223	$LIBS = [] if $Config{'osname'} eq 'linux';
	224	$LIBS = ['-lm'] if $Config{'osname'} =~ /sco/i;
	225	$LIBS = ['-lc'] if $Config{'osname'} =~ /dynixptx/i;
	226
	227	# For nanosleep
	228	push @$LIBS, '-lrt' unless $Config{'osname'} =~ /irix/;
	229	push @$LIBS, '-lposix4' ;
	230
	231	my @goodlibs;
	232
98b50af3	233	select(STDOUT);
98b50af3	234	$\| = 1;
3f2ee006	235
	236	print "Checking for libraries...\n";
	237	my $lib;
	238	for $lib (@$LIBS) {
98b50af3	239	print "Checking for $lib... ";
3f2ee006	240	$LIBS = [ $lib ];
	241	if ($Config{libs} =~ /\b$lib\b/ \|\| has_x("time(0)")) {
	242	push @goodlibs, $lib;
98b50af3	243	print "found.\n";
	244	} else {
	245	print "NOT found.\n";
3f2ee006	246	}
3f2ee006	247	}
98b50af3	248	$LIBS = [ @goodlibs ];
3f2ee006	249	print @$LIBS ?
	250	"You have extra libraries: @$LIBS.\n" :
	251	"You have no applicable extra libraries.\n";
3f2ee006	252
98b50af3	253	print "Looking for gettimeofday()... ";
3f2ee006	254	my $has_gettimeofday;
	255	if ($Config{'d_gettimeod'}) {
	256	$has_gettimeofday++;
	257	} elsif (has_gettimeofday()) {
	258	$DEFINE .= ' -DHAS_GETTIMEOFDAY';
	259	$has_gettimeofday++;
	260	}
	261
	262	if ($has_gettimeofday) {
98b50af3	263	print "found.\n";
3f2ee006	264	} else {
	265	die <<EOD
	266	Your operating system does not seem to have the gettimeofday() function.
	267	(or, at least, I cannot find it)
	268
	269	There is no way Time::HiRes is going to work.
	270
	271	I am awfully sorry but I cannot go further.
	272
	273	Aborting configuration.
	274
	275	EOD
	276	}
	277
98b50af3	278	print "Looking for setitimer()... ";
3f2ee006	279	my $has_setitimer;
	280	if ($Config{d_setitimer}) {
	281	$has_setitimer++;
	282	} elsif (has_x("setitimer(ITIMER_REAL, 0, 0)")) {
	283	$has_setitimer++;
	284	$DEFINE .= ' -DHAS_SETITIMER';
	285	}
	286
	287	if ($has_setitimer) {
98b50af3	288	print "found.\n";
3f2ee006	289	} else {
98b50af3	290	print "NOT found.\n";
3f2ee006	291	}
3f2ee006	292
98b50af3	293	print "Looking for getitimer()... ";
3f2ee006	294	my $has_getitimer;
	295	if ($Config{d_getitimer}) {
	296	$has_getitimer++;
	297	} elsif (has_x("getitimer(ITIMER_REAL, 0)")) {
	298	$has_getitimer++;
	299	$DEFINE .= ' -DHAS_GETITIMER';
	300	}
	301
	302	if ($has_getitimer) {
98b50af3	303	print "found.\n";
3f2ee006	304	} else {
98b50af3	305	print "NOT found.\n";
3f2ee006	306	}
	307
	308	if ($has_setitimer && $has_getitimer) {
98b50af3	309	print "You have interval timers (both setitimer and setitimer).\n";
3f2ee006	310	} else {
98b50af3	311	print "You do not have interval timers.\n";
3f2ee006	312	}
3f2ee006	313
98b50af3	314	print "Looking for ualarm()... ";
98b50af3	315	my $has_ualarm;
3f2ee006	316	if ($Config{d_ualarm}) {
	317	$has_ualarm++;
	318	} elsif (has_x ("ualarm (0, 0)")) {
	319	$has_ualarm++;
	320	$DEFINE .= ' -DHAS_UALARM';
	321	}
	322
	323	if ($has_ualarm) {
98b50af3	324	print "found.\n";
3f2ee006	325	} else {
98b50af3	326	print "NOT found.\n";
	327	if ($has_setitimer) {
	328	print "But you have setitimer().\n";
	329	print "We can make a Time::HiRes::ualarm().\n";
3f2ee006	330	}
	331	}
	332
98b50af3	333	print "Looking for usleep()... ";
3f2ee006	334	my $has_usleep;
	335	if ($Config{d_usleep}) {
	336	$has_usleep++;
	337	} elsif (has_x ("usleep (0)")) {
	338	$has_usleep++;
	339	$DEFINE .= ' -DHAS_USLEEP';
	340	}
	341
	342	if ($has_usleep) {
98b50af3	343	print "found.\n";
3f2ee006	344	} else {
98b50af3	345	print "NOT found.\n";
98b50af3	346	print "Let's see if you have select()... ";
3f2ee006	347	if ($Config{'d_select'} eq 'define') {
98b50af3	348	print "found.\n";
98b50af3	349	print "We can make a Time::HiRes::usleep().\n";
3f2ee006	350	} else {
98b50af3	351	print "NOT found.\n";
98b50af3	352	print "You won't have a Time::HiRes::usleep().\n";
3f2ee006	353	}
	354	}
	355
98b50af3	356	print "Looking for nanosleep()... ";
3f2ee006	357	my $has_nanosleep;
	358	if ($Config{d_nanosleep}) {
	359	$has_nanosleep++;
	360	} elsif (has_x ("nanosleep (NULL, NULL)")) {
	361	$has_nanosleep++;
	362	$DEFINE .= ' -DHAS_NANOSLEEP';
	363	}
	364
	365	if ($has_nanosleep) {
98b50af3	366	print "found.\n";
98b50af3	367	print "You can mix subsecond sleeps with signals.\n";
3f2ee006	368	} else {
98b50af3	369	print "NOT found.\n";
98b50af3	370	print "You cannot mix subsecond sleeps with signals.\n";
3f2ee006	371	}
	372
	373	if ($DEFINE) {
	374	$DEFINE =~ s/^\s+//;
	375	if (open(XDEFINE, ">xdefine")) {
	376	print XDEFINE $DEFINE, "\n";
	377	close(XDEFINE);
	378	}
	379	}
	380	}
	381
	382	sub doMakefile {
98b50af3	383	my @makefileopts = ();
3f2ee006	384
	385	if ($] >= 5.005) {
	386	push (@makefileopts,
	387	'AUTHOR' => 'Jarkko Hietaniemi <jhi@iki.fi>',
	388	'ABSTRACT_FROM' => 'HiRes.pm',
	389	);
	390	$DEFINE .= " -DATLEASTFIVEOHOHFIVE";
	391	}
	392
	393	push (@makefileopts,
	394	'NAME' => 'Time::HiRes',
	395	'VERSION_FROM' => 'HiRes.pm', # finds $VERSION
	396	'LIBS' => $LIBS, # e.g., '-lm'
	397	'DEFINE' => $DEFINE, # e.g., '-DHAS_SOMETHING'
	398	'XSOPT' => $XSOPT,
	399	# do not even think about 'INC' => '-I/usr/ucbinclude', Solaris will avenge.
	400	'INC' => '', # e.g., '-I/usr/include/other'
	401	'INSTALLDIRS' => 'perl',
	402	'dist' => {
	403	'CI' => 'ci -l',
	404	'COMPRESS' => 'gzip -9f',
	405	'SUFFIX' => 'gz',
	406	},
	407	clean => { FILES => "xdefine" },
98b50af3	408	realclean => {FILES=> 'const-c.inc const-xs.inc'},
3f2ee006	409	);
	410
	411	WriteMakefile(@makefileopts);
	412	}
	413
98b50af3	414	sub doConstants {
	415	if (eval {require ExtUtils::Constant; 1}) {
	416	my @names = (qw(ITIMER_REAL ITIMER_VIRTUAL ITIMER_PROF
	417	ITIMER_REALPROF));
	418	foreach (qw (d_usleep d_ualarm d_gettimeofday d_getitimer d_setitimer
	419	d_nanosleep)) {
	420	my $macro = $_;
	421	$macro =~ s/d_(.*)/HAS_\U$1/;
	422	push @names, {name => $_, macro => $macro, value => 1,
	423	default => ["IV", "0"]};
	424	}
	425	ExtUtils::Constant::WriteConstants(
	426	NAME => 'Time::HiRes',
	427	NAMES => \@names,
	428	);
	429	} else {
	430	foreach my $file ('const-c.inc', 'const-xs.inc') {
	431	my $fallback = File::Spec->catfile('fallback', $file);
	432	local $/;
	433	open IN, "<$fallback" or die "Can't open $fallback: $!";
	434	open OUT, ">$file" or die "Can't open $file: $!";
	435	print OUT <IN> or die $!;
	436	close OUT or die "Can't close $file: $!";
	437	close IN or die "Can't close $fallback: $!";
	438	}
	439	}
	440	}
3f2ee006	441
98b50af3	442	sub main {
98b50af3	443	print "Configuring Time::HiRes...\n";
3f2ee006	444
	445	if ($^O =~ /Win32/i) {
	446	$DEFINE = '-DSELECT_IS_BROKEN';
	447	$LIBS = [''];
	448	} else {
	449	unixinit();
	450	}
3f2ee006	451	doMakefile;
98b50af3	452	doConstants;
3f2ee006	453	my $make = $Config{'make'} \|\| "make";
	454	unless ($ENV{PERL_CORE}) {
	455	print <<EOM;
3f2ee006	456	Now you may issue '$make'. Do not forget also '$make test'.
3f2ee006	457	EOM
	458	}
	459	}
	460
	461	&main;
dcf686c9	462
3f2ee006	463	# EOF