[perl5.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;

my $ld_exeext = ($^O eq 'os2' and $Config{ldflags} =~ /-Zexe\b/) ? '.exe' : '';

unless($ENV{PERL_CORE}) {
    $ENV{PERL_CORE} = 1 if grep { $_ eq 'PERL_CORE=1' } @ARGV;
}

# 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
        {
	    my $tmp_exe = "$tmp$ld_exeext";
	    printf "cccmd = $cccmd\n" if $VERBOSE;
	    my $res = system($cccmd);
	    $ok = defined($res) && $res==0 && -s $tmp_exe && -x _;
	    unlink("$tmp.c", $tmp_exe);
        }
    }
    
    $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 $Config{'osname'} =~ /^(?:irix|linux)$/;
    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";
	my $nt = ($^O eq 'os2' ? '' : 'not');
        print "You can$nt 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'},
    );

    if ($ENV{PERL_CORE}) {
	push @makefileopts, MAN3PODS => {};
    }

    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
5b7ea690	1
dcf686c9 JH	2	# See lib/ExtUtils/MakeMaker.pm for details of how to influence
	3	# the contents of the Makefile that is written.
	4	#
	5
5b7ea690 JH	6	require 5.002;
	7
	8	use Config;
dcf686c9	9	use ExtUtils::MakeMaker;
4ea4a029	10	use strict;
5b7ea690 JH	11
5b7ea690 JH	12	my $VERBOSE = $ENV{VERBOSE};
4ea4a029 JH	13	my $DEFINE;
	14	my $LIBS;
	15	my $XSOPT;
	16
18729d3e JH	17	my $ld_exeext = ($^O eq 'os2' and $Config{ldflags} =~ /-Zexe\b/) ? '.exe' : '';
18729d3e JH	18
18015851 JH	19	unless($ENV{PERL_CORE}) {
18015851 JH	20	$ENV{PERL_CORE} = 1 if grep { $_ eq 'PERL_CORE=1' } @ARGV;
1e7c5a0f JH	21	}
1e7c5a0f JH	22
4ea4a029	23	# Perls 5.002 and 5.003 did not have File::Spec, fake what we need.
5b7ea690 JH	24
	25	sub my_dirsep {
	26	$^O eq 'VMS' ? '.' :
	27	$^O =~ /mswin32\|netware\|djgpp/i ? '\\' :
	28	$^O eq 'MacOS' ? ':'
	29	: '/';
	30	}
	31
	32	sub my_catdir {
	33	shift;
	34	my $catdir = join(my_dirsep, @_);
4ea4a029	35	$^O eq 'VMS' ? "[$catdir]" : $catdir;
5b7ea690 JH	36	}
5b7ea690 JH	37
87917fc5 JH	38	sub my_catfile {
	39	shift;
	40	return join(my_dirsep, @_) unless $^O eq 'VMS';
	41	my $file = pop;
	42	return my_catdir (undef, @_) . $file;
	43	}
	44
5b7ea690 JH	45	sub my_updir {
	46	shift;
	47	$^O eq 'VMS' ? "-" : "..";
	48	}
	49
	50	BEGIN {
	51	eval { require File::Spec };
	52	if ($@) {
7a285505 JH	53	*File::Spec::catdir = \&my_catdir;
7a285505 JH	54	*File::Spec::updir = \&my_updir;
87917fc5	55	*File::Spec::catfile = \&my_catfile;
5b7ea690 JH	56	}
	57	}
	58
4ea4a029 JH	59	# Avoid 'used only once' warnings.
	60	my $nop1 = *File::Spec::catdir;
	61	my $nop2 = *File::Spec::updir;
87917fc5	62	my $nop3 = *File::Spec::catfile;
4ea4a029	63
5b7ea690 JH	64	# if you have 5.004_03 (and some slightly older versions?), xsubpp
	65	# tries to generate line numbers in the C code generated from the .xs.
	66	# unfortunately, it is a little buggy around #ifdef'd code.
	67	# my choice is leave it in and have people with old perls complain
	68	# about the "Usage" bug, or leave it out and be unable to compile myself
	69	# without changing it, and then I'd always forget to change it before a
	70	# release. Sorry, Edward :)
	71
	72	sub TMPDIR {
	73	my $TMPDIR =
	74	(grep(defined $_ && -d $_ && -w _,
	75	((defined $ENV{'TMPDIR'} ? $ENV{'TMPDIR'} : undef),
ecde6dd6	76	qw(/var/tmp /usr/tmp /tmp c:/temp))))[0];
5b7ea690 JH	77	$TMPDIR \|\| die "Cannot find writable temporary directory.\n";
	78	}
	79
	80	sub try_compile_and_link {
	81	my ($c, %args) = @_;
	82
	83	my ($ok) = 0;
4ea4a029	84	my ($tmp) = (($^O eq 'VMS') ? "sys\$scratch:tmp$$" : TMPDIR() . '/' . "tmp$$");
5b7ea690 JH	85	local(*TMPC);
	86
	87	my $obj_ext = $Config{obj_ext} \|\| ".o";
	88	unlink("$tmp.c", "$tmp$obj_ext");
	89
	90	if (open(TMPC, ">$tmp.c")) {
	91	print TMPC $c;
	92	close(TMPC);
	93
4ea4a029	94	my $cccmd = $args{cccmd};
5b7ea690 JH	95
	96	my $errornull;
	97
	98	my $COREincdir;
1e7c5a0f	99
5b7ea690 JH	100	if ($ENV{PERL_CORE}) {
	101	my $updir = File::Spec->updir;
	102	$COREincdir = File::Spec->catdir(($updir) x 3);
	103	} else {
	104	$COREincdir = File::Spec->catdir($Config{'archlibexp'}, 'CORE');
	105	}
1e7c5a0f	106
5b7ea690	107	my $ccflags = $Config{'ccflags'} . ' ' . "-I$COREincdir";
1e7c5a0f	108
5b7ea690 JH	109	if ($^O eq 'VMS') {
5b7ea690 JH	110	if ($ENV{PERL_CORE}) {
4f4e7967 JH	111	# Fragile if the extensions change hierachy within
	112	# the Perl core but this should do for now.
	113	$cccmd = "$Config{'cc'} /include=([---]) $tmp.c";
5b7ea690 JH	114	} else {
	115	my $perl_core = $Config{'installarchlib'};
	116	$perl_core =~ s/\]$/.CORE]/;
4ea4a029	117	$cccmd = "$Config{'cc'} /include=(perl_root:[000000],$perl_core) $tmp.c";
5b7ea690 JH	118	}
	119	}
	120
	121	if ($args{silent} \|\| !$VERBOSE) {
	122	$errornull = "2>/dev/null" unless defined $errornull;
	123	} else {
	124	$errornull = '';
	125	}
	126
1e7c5a0f	127	$cccmd = "$Config{'cc'} -o $tmp $ccflags $tmp.c @$LIBS $errornull"
5b7ea690	128	unless defined $cccmd;
1e7c5a0f	129
5b7ea690 JH	130	if ($^O eq 'VMS') {
	131	open( CMDFILE, ">$tmp.com" );
	132	print CMDFILE "\$ SET MESSAGE/NOFACILITY/NOSEVERITY/NOIDENT/NOTEXT\n";
	133	print CMDFILE "\$ $cccmd\n";
4ea4a029	134	print CMDFILE "\$ IF \$SEVERITY .NE. 1 THEN EXIT 44\n"; # escalate
5b7ea690 JH	135	close CMDFILE;
	136	system("\@ $tmp.com");
	137	$ok = $?==0;
	138	for ("$tmp.c", "$tmp$obj_ext", "$tmp.com", "$tmp$Config{exe_ext}") {
4ea4a029	139	1 while unlink $_;
5b7ea690 JH	140	}
	141	}
	142	else
	143	{
18729d3e	144	my $tmp_exe = "$tmp$ld_exeext";
5b7ea690	145	printf "cccmd = $cccmd\n" if $VERBOSE;
18729d3e JH	146	my $res = system($cccmd);
	147	$ok = defined($res) && $res==0 && -s $tmp_exe && -x _;
	148	unlink("$tmp.c", $tmp_exe);
5b7ea690 JH	149	}
	150	}
	151
	152	$ok;
	153	}
	154
	155	sub has_gettimeofday {
	156	# confusing but true (if condition true ==> -DHAS_GETTIMEOFDAY already)
	157	return 0 if $Config{'d_gettimeod'} eq 'define';
4ea4a029	158	return 1 if try_compile_and_link(<<EOM);
5b7ea690 JH	159	#include "EXTERN.h"
	160	#include "perl.h"
	161	#include "XSUB.h"
	162	#ifdef I_SYS_TYPES
	163	# include <sys/types.h>
	164	#endif
	165
	166	#ifdef I_SYS_TIME
	167	# include <sys/time.h>
	168	#endif
	169
	170	#ifdef I_SYS_SELECT
	171	# include <sys/select.h> /* struct timeval might be hidden in here */
	172	#endif
	173	static int foo()
	174	{
	175	struct timeval tv;
	176	gettimeofday(&tv, 0);
	177	}
	178	int main _((int argc, char argv, char env))
	179	{
	180	foo();
	181	}
	182	EOM
	183	return 0;
	184	}
	185
	186	sub has_x {
4ea4a029	187	my ($x, %args) = @_;
5b7ea690 JH	188
	189	return 1 if
	190	try_compile_and_link(<<EOM, %args);
	191	#include "EXTERN.h"
	192	#include "perl.h"
	193	#include "XSUB.h"
	194
	195	#ifdef I_UNISTD
	196	# include <unistd.h>
	197	#endif
	198
	199	#ifdef I_SYS_TYPES
	200	# include <sys/types.h>
	201	#endif
	202
	203	#ifdef I_SYS_TIME
	204	# include <sys/time.h>
	205	#endif
	206
	207	int main _((int argc, char argv, char env))
	208	{
	209	$x;
	210	}
	211	EOM
	212	return 0;
	213	}
	214
	215	sub unixinit {
	216	$DEFINE = '';
	217
	218	$LIBS = [];
	219
	220	# this might break the link, try it if it can't find some things you
	221	# honestly think should be in there...
	222	# $LIBS = ['-lucb -lbsd'];
	223
	224	# ... but ucb is poison for Solaris, and probably Linux. honest.
	225	$LIBS = [] if $Config{'osname'} eq 'solaris';
	226	$LIBS = [] if $Config{'osname'} eq 'linux';
	227	$LIBS = ['-lm'] if $Config{'osname'} =~ /sco/i;
	228	$LIBS = ['-lc'] if $Config{'osname'} =~ /dynixptx/i;
	229
	230	# For nanosleep
0710cc63 JH	231	push @$LIBS, '-lrt' unless $Config{'osname'} =~ /^(?:irix\|linux)$/;
0710cc63 JH	232	push @$LIBS, '-lposix4';
5b7ea690 JH	233
	234	my @goodlibs;
	235
4ea4a029 JH	236	select(STDOUT);
4ea4a029 JH	237	$\| = 1;
5b7ea690 JH	238
	239	print "Checking for libraries...\n";
	240	my $lib;
	241	for $lib (@$LIBS) {
1e7c5a0f	242	print "Checking for $lib... ";
5b7ea690 JH	243	$LIBS = [ $lib ];
	244	if ($Config{libs} =~ /\b$lib\b/ \|\| has_x("time(0)")) {
	245	push @goodlibs, $lib;
1e7c5a0f JH	246	print "found.\n";
	247	} else {
	248	print "NOT found.\n";
5b7ea690 JH	249	}
5b7ea690 JH	250	}
1e7c5a0f	251	$LIBS = [ @goodlibs ];
5b7ea690 JH	252	print @$LIBS ?
	253	"You have extra libraries: @$LIBS.\n" :
	254	"You have no applicable extra libraries.\n";
5b7ea690	255
4ea4a029	256	print "Looking for gettimeofday()... ";
5b7ea690 JH	257	my $has_gettimeofday;
	258	if ($Config{'d_gettimeod'}) {
	259	$has_gettimeofday++;
	260	} elsif (has_gettimeofday()) {
	261	$DEFINE .= ' -DHAS_GETTIMEOFDAY';
	262	$has_gettimeofday++;
	263	}
	264
	265	if ($has_gettimeofday) {
4ea4a029	266	print "found.\n";
5b7ea690 JH	267	} else {
	268	die <<EOD
	269	Your operating system does not seem to have the gettimeofday() function.
	270	(or, at least, I cannot find it)
	271
	272	There is no way Time::HiRes is going to work.
	273
	274	I am awfully sorry but I cannot go further.
	275
	276	Aborting configuration.
	277
	278	EOD
	279	}
	280
4ea4a029	281	print "Looking for setitimer()... ";
5b7ea690 JH	282	my $has_setitimer;
	283	if ($Config{d_setitimer}) {
	284	$has_setitimer++;
	285	} elsif (has_x("setitimer(ITIMER_REAL, 0, 0)")) {
	286	$has_setitimer++;
	287	$DEFINE .= ' -DHAS_SETITIMER';
	288	}
	289
	290	if ($has_setitimer) {
4ea4a029	291	print "found.\n";
5b7ea690	292	} else {
4ea4a029	293	print "NOT found.\n";
5b7ea690 JH	294	}
5b7ea690 JH	295
4ea4a029	296	print "Looking for getitimer()... ";
5b7ea690 JH	297	my $has_getitimer;
	298	if ($Config{d_getitimer}) {
	299	$has_getitimer++;
	300	} elsif (has_x("getitimer(ITIMER_REAL, 0)")) {
	301	$has_getitimer++;
	302	$DEFINE .= ' -DHAS_GETITIMER';
	303	}
	304
	305	if ($has_getitimer) {
4ea4a029	306	print "found.\n";
5b7ea690	307	} else {
4ea4a029	308	print "NOT found.\n";
5b7ea690 JH	309	}
	310
	311	if ($has_setitimer && $has_getitimer) {
4ea4a029	312	print "You have interval timers (both setitimer and setitimer).\n";
5b7ea690	313	} else {
4ea4a029	314	print "You do not have interval timers.\n";
5b7ea690 JH	315	}
5b7ea690 JH	316
4ea4a029 JH	317	print "Looking for ualarm()... ";
4ea4a029 JH	318	my $has_ualarm;
5b7ea690 JH	319	if ($Config{d_ualarm}) {
	320	$has_ualarm++;
	321	} elsif (has_x ("ualarm (0, 0)")) {
	322	$has_ualarm++;
	323	$DEFINE .= ' -DHAS_UALARM';
	324	}
	325
	326	if ($has_ualarm) {
4ea4a029	327	print "found.\n";
5b7ea690	328	} else {
4ea4a029 JH	329	print "NOT found.\n";
	330	if ($has_setitimer) {
	331	print "But you have setitimer().\n";
	332	print "We can make a Time::HiRes::ualarm().\n";
5b7ea690 JH	333	}
	334	}
	335
4ea4a029	336	print "Looking for usleep()... ";
5b7ea690 JH	337	my $has_usleep;
	338	if ($Config{d_usleep}) {
	339	$has_usleep++;
	340	} elsif (has_x ("usleep (0)")) {
	341	$has_usleep++;
	342	$DEFINE .= ' -DHAS_USLEEP';
	343	}
	344
	345	if ($has_usleep) {
4ea4a029	346	print "found.\n";
5b7ea690	347	} else {
4ea4a029 JH	348	print "NOT found.\n";
4ea4a029 JH	349	print "Let's see if you have select()... ";
5b7ea690	350	if ($Config{'d_select'} eq 'define') {
4ea4a029 JH	351	print "found.\n";
4ea4a029 JH	352	print "We can make a Time::HiRes::usleep().\n";
5b7ea690	353	} else {
4ea4a029 JH	354	print "NOT found.\n";
4ea4a029 JH	355	print "You won't have a Time::HiRes::usleep().\n";
5b7ea690 JH	356	}
	357	}
	358
4ea4a029	359	print "Looking for nanosleep()... ";
5b7ea690 JH	360	my $has_nanosleep;
	361	if ($Config{d_nanosleep}) {
	362	$has_nanosleep++;
	363	} elsif (has_x ("nanosleep (NULL, NULL)")) {
	364	$has_nanosleep++;
	365	$DEFINE .= ' -DHAS_NANOSLEEP';
	366	}
	367
	368	if ($has_nanosleep) {
4ea4a029 JH	369	print "found.\n";
4ea4a029 JH	370	print "You can mix subsecond sleeps with signals.\n";
5b7ea690	371	} else {
4ea4a029	372	print "NOT found.\n";
18729d3e JH	373	my $nt = ($^O eq 'os2' ? '' : 'not');
18729d3e JH	374	print "You can$nt mix subsecond sleeps with signals.\n";
5b7ea690 JH	375	}
	376
	377	if ($DEFINE) {
	378	$DEFINE =~ s/^\s+//;
	379	if (open(XDEFINE, ">xdefine")) {
	380	print XDEFINE $DEFINE, "\n";
	381	close(XDEFINE);
	382	}
	383	}
	384	}
	385
	386	sub doMakefile {
4ea4a029	387	my @makefileopts = ();
5b7ea690 JH	388
	389	if ($] >= 5.005) {
	390	push (@makefileopts,
	391	'AUTHOR' => 'Jarkko Hietaniemi <jhi@iki.fi>',
	392	'ABSTRACT_FROM' => 'HiRes.pm',
	393	);
	394	$DEFINE .= " -DATLEASTFIVEOHOHFIVE";
	395	}
	396
	397	push (@makefileopts,
	398	'NAME' => 'Time::HiRes',
	399	'VERSION_FROM' => 'HiRes.pm', # finds $VERSION
	400	'LIBS' => $LIBS, # e.g., '-lm'
	401	'DEFINE' => $DEFINE, # e.g., '-DHAS_SOMETHING'
	402	'XSOPT' => $XSOPT,
	403	# do not even think about 'INC' => '-I/usr/ucbinclude', Solaris will avenge.
	404	'INC' => '', # e.g., '-I/usr/include/other'
	405	'INSTALLDIRS' => 'perl',
	406	'dist' => {
	407	'CI' => 'ci -l',
	408	'COMPRESS' => 'gzip -9f',
	409	'SUFFIX' => 'gz',
	410	},
	411	clean => { FILES => "xdefine" },
87917fc5	412	realclean => {FILES=> 'const-c.inc const-xs.inc'},
5b7ea690 JH	413	);
5b7ea690 JH	414
c0401c5d JH	415	if ($ENV{PERL_CORE}) {
	416	push @makefileopts, MAN3PODS => {};
	417	}
	418
5b7ea690 JH	419	WriteMakefile(@makefileopts);
	420	}
	421
87917fc5 JH	422	sub doConstants {
	423	if (eval {require ExtUtils::Constant; 1}) {
	424	my @names = (qw(ITIMER_REAL ITIMER_VIRTUAL ITIMER_PROF
	425	ITIMER_REALPROF));
	426	foreach (qw (d_usleep d_ualarm d_gettimeofday d_getitimer d_setitimer
	427	d_nanosleep)) {
	428	my $macro = $_;
	429	$macro =~ s/d_(.*)/HAS_\U$1/;
	430	push @names, {name => $_, macro => $macro, value => 1,
	431	default => ["IV", "0"]};
	432	}
	433	ExtUtils::Constant::WriteConstants(
	434	NAME => 'Time::HiRes',
	435	NAMES => \@names,
	436	);
	437	} else {
	438	foreach my $file ('const-c.inc', 'const-xs.inc') {
	439	my $fallback = File::Spec->catfile('fallback', $file);
	440	local $/;
	441	open IN, "<$fallback" or die "Can't open $fallback: $!";
	442	open OUT, ">$file" or die "Can't open $file: $!";
	443	print OUT <IN> or die $!;
	444	close OUT or die "Can't close $file: $!";
	445	close IN or die "Can't close $fallback: $!";
	446	}
	447	}
	448	}
	449
5b7ea690	450	sub main {
4ea4a029	451	print "Configuring Time::HiRes...\n";
5b7ea690 JH	452
	453	if ($^O =~ /Win32/i) {
	454	$DEFINE = '-DSELECT_IS_BROKEN';
	455	$LIBS = [''];
	456	} else {
	457	unixinit();
	458	}
5b7ea690	459	doMakefile;
87917fc5	460	doConstants;
5b7ea690 JH	461	my $make = $Config{'make'} \|\| "make";
	462	unless ($ENV{PERL_CORE}) {
	463	print <<EOM;
5b7ea690	464	Now you may issue '$make'. Do not forget also '$make test'.
5b7ea690 JH	465	EOM
	466	}
	467	}
	468
	469	&main;
dcf686c9	470
5b7ea690	471	# EOF