Time/HiRes/Makefile.PL

require 5.002;

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

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

use vars qw($self); # Used in 'sourcing' the hints.

my $ld_exeext = ($^O eq 'cygwin' ||
                 $^O eq 'os2' && $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 try_compile_and_link {
    my ($c, %args) = @_;

    my ($ok) = 0;
    my ($tmp) = "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 hierarchy 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 has_include {
    my ($inc) = @_;
    return 1 if
    try_compile_and_link(<<EOM);
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include <$inc>
int main _((int argc, char** argv, char** env))
{
        return 0;
}
EOM
    return 0;
}

sub init {
    my $hints = File::Spec->catfile("hints", "$^O.pl");
    if (-f $hints) {
        print "Using hints $hints...\n";
        local $self;
        do $hints;
        if (exists $self->{LIBS}) {
            $LIBS = $self->{LIBS};
            print "Extra libraries: @$LIBS...\n";
        }
    }

    $DEFINE = '';

    print "Looking for gettimeofday()... ";
    my $has_gettimeofday;
    if (exists $Config{d_gettimeod}) {
        $has_gettimeofday++ if $Config{d_gettimeod};
    } 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 (exists $Config{d_setitimer}) {
        $has_setitimer++ if $Config{d_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 (exists $Config{'d_getitimer'}) {
        $has_getitimer++ if $Config{'d_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 getitimer).\n";
    } else {
        print "You do not have interval timers.\n";
    }

    print "Looking for ualarm()... ";
    my $has_ualarm;
    if (exists $Config{d_ualarm}) {
        $has_ualarm++ if $Config{d_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 (exists $Config{d_usleep}) {
        $has_usleep++ if $Config{d_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 (exists $Config{d_nanosleep}) {
        if ($Config{d_nanosleep}) {
            $has_nanosleep++;
            $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
        }
    } elsif ($^O ne 'mpeix' && # MPE/iX falsely finds nanosleep.
             has_x ("nanosleep (NULL, NULL)")) {
        $has_nanosleep++;
        $DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
    }

    if ($has_nanosleep) {
        print "found.\n";
        print "You can mix subsecond sleeps with signals, if you want to.\n";
        print "(It's still not portable, though.)\n";
    } else {
        print "NOT found.\n";
        my $nt = ($^O eq 'os2' ? '' : 'not');
        print "You can$nt mix subsecond sleeps with signals.\n";
        print "(It would not be portable anyway.)\n";
    }

    my $has_w32api_windows_h;
    if ($^O eq 'cygwin') {
        print "Looking for <w32api/windows.h>... ";
        if (has_include('w32api/windows.h')) {
            $has_w32api_windows_h++;
            $DEFINE .= ' -DHAS_W32API_WINDOWS_H';
        }
        if ($has_w32api_windows_h) {
            print "found.\n";
        } else {
            print "NOT found.\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 = $_;
            if ($macro eq 'd_nanosleep') {
                $macro =~ s/d_(.*)/TIME_HIRES_\U$1/;
            } else {
                $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 {
        my $file;
        foreach $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 ($] == 5.007002) {
        die "Cannot Configure Time::HiRes for Perl $], aborting.\n";
    }

    if ($^O =~ /Win32/i) {
      $DEFINE = '-DSELECT_IS_BROKEN';
      $LIBS = [];
    } else {
      init();
    }
    doMakefile;
    doConstants;
    my $make = $Config{'make'} || "make";
    unless (exists $ENV{PERL_CORE} && $ENV{PERL_CORE}) {
        print  <<EOM;
Now you may issue '$make'.  Do not forget also '$make test'.
EOM
       if ((exists $ENV{LC_ALL}   && $ENV{LC_ALL}   =~ /utf-?8/i) ||
           (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):
Makefile:91: *** missing separator
then set the environment variable LC_ALL to "C" and retry
from scratch (re-run perl "Makefile.PL").
EOM
        }
    }
}

&main;

# EOF
Revision:	1.1
Committed:	Thu Jun 30 14:27:06 2005 UTC (21 years, 4 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	PERL-5-8-7, HEAD
Branch point for:	PERL
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	require 5.002;
2
3			use Config;
4			use ExtUtils::MakeMaker;
5			use strict;
6
7			my $VERBOSE = $ENV{VERBOSE};
8			my $DEFINE;
9			my $LIBS = [];
10			my $XSOPT;
11
12			use vars qw($self); # Used in 'sourcing' the hints.
13
14			my $ld_exeext = ($^O eq 'cygwin' \|\|
15			$^O eq 'os2' && $Config{ldflags} =~ /-Zexe\b/) ? '.exe' : '';
16
17			unless($ENV{PERL_CORE}) {
18			$ENV{PERL_CORE} = 1 if grep { $_ eq 'PERL_CORE=1' } @ARGV;
19			}
20
21			# Perls 5.002 and 5.003 did not have File::Spec, fake what we need.
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, @_);
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;
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;
53			*File::Spec::catfile = \&my_catfile;
54			}
55			}
56
57			# Avoid 'used only once' warnings.
58			my $nop1 = *File::Spec::catdir;
59			my $nop2 = *File::Spec::updir;
60			my $nop3 = *File::Spec::catfile;
61
62			# if you have 5.004_03 (and some slightly older versions?), xsubpp
63			# tries to generate line numbers in the C code generated from the .xs.
64			# unfortunately, it is a little buggy around #ifdef'd code.
65			# my choice is leave it in and have people with old perls complain
66			# about the "Usage" bug, or leave it out and be unable to compile myself
67			# without changing it, and then I'd always forget to change it before a
68			# release. Sorry, Edward :)
69
70			sub try_compile_and_link {
71			my ($c, %args) = @_;
72
73			my ($ok) = 0;
74			my ($tmp) = "tmp$$";
75			local(*TMPC);
76
77			my $obj_ext = $Config{obj_ext} \|\| ".o";
78			unlink("$tmp.c", "$tmp$obj_ext");
79
80			if (open(TMPC, ">$tmp.c")) {
81			print TMPC $c;
82			close(TMPC);
83
84			my $cccmd = $args{cccmd};
85
86			my $errornull;
87
88			my $COREincdir;
89
90			if ($ENV{PERL_CORE}) {
91			my $updir = File::Spec->updir;
92			$COREincdir = File::Spec->catdir(($updir) x 3);
93			} else {
94			$COREincdir = File::Spec->catdir($Config{'archlibexp'}, 'CORE');
95			}
96
97			my $ccflags = $Config{'ccflags'} . ' ' . "-I$COREincdir";
98
99			if ($^O eq 'VMS') {
100			if ($ENV{PERL_CORE}) {
101			# Fragile if the extensions change hierarchy within
102			# the Perl core but this should do for now.
103			$cccmd = "$Config{'cc'} /include=([---]) $tmp.c";
104			} else {
105			my $perl_core = $Config{'installarchlib'};
106			$perl_core =~ s/\]$/.CORE]/;
107			$cccmd = "$Config{'cc'} /include=(perl_root:[000000],$perl_core) $tmp.c";
108			}
109			}
110
111			if ($args{silent} \|\| !$VERBOSE) {
112			$errornull = "2>/dev/null" unless defined $errornull;
113			} else {
114			$errornull = '';
115			}
116
117			$cccmd = "$Config{'cc'} -o $tmp $ccflags $tmp.c @$LIBS $errornull"
118			unless defined $cccmd;
119
120			if ($^O eq 'VMS') {
121			open( CMDFILE, ">$tmp.com" );
122			print CMDFILE "\$ SET MESSAGE/NOFACILITY/NOSEVERITY/NOIDENT/NOTEXT\n";
123			print CMDFILE "\$ $cccmd\n";
124			print CMDFILE "\$ IF \$SEVERITY .NE. 1 THEN EXIT 44\n"; # escalate
125			close CMDFILE;
126			system("\@ $tmp.com");
127			$ok = $?==0;
128			for ("$tmp.c", "$tmp$obj_ext", "$tmp.com", "$tmp$Config{exe_ext}") {
129			1 while unlink $_;
130			}
131			}
132			else
133			{
134			my $tmp_exe = "$tmp$ld_exeext";
135			printf "cccmd = $cccmd\n" if $VERBOSE;
136			my $res = system($cccmd);
137			$ok = defined($res) && $res==0 && -s $tmp_exe && -x _;
138			unlink("$tmp.c", $tmp_exe);
139			}
140			}
141
142			$ok;
143			}
144
145			sub has_gettimeofday {
146			# confusing but true (if condition true ==> -DHAS_GETTIMEOFDAY already)
147			return 0 if $Config{d_gettimeod} eq 'define';
148			return 1 if try_compile_and_link(<<EOM);
149			#include "EXTERN.h"
150			#include "perl.h"
151			#include "XSUB.h"
152			#ifdef I_SYS_TYPES
153			# include <sys/types.h>
154			#endif
155
156			#ifdef I_SYS_TIME
157			# include <sys/time.h>
158			#endif
159
160			#ifdef I_SYS_SELECT
161			# include <sys/select.h> /* struct timeval might be hidden in here */
162			#endif
163			static int foo()
164			{
165			struct timeval tv;
166			gettimeofday(&tv, 0);
167			}
168			int main _((int argc, char argv, char env))
169			{
170			foo();
171			}
172			EOM
173			return 0;
174			}
175
176			sub has_x {
177			my ($x, %args) = @_;
178
179			return 1 if
180			try_compile_and_link(<<EOM, %args);
181			#include "EXTERN.h"
182			#include "perl.h"
183			#include "XSUB.h"
184
185			#ifdef I_UNISTD
186			# include <unistd.h>
187			#endif
188
189			#ifdef I_SYS_TYPES
190			# include <sys/types.h>
191			#endif
192
193			#ifdef I_SYS_TIME
194			# include <sys/time.h>
195			#endif
196
197			int main _((int argc, char argv, char env))
198			{
199			$x;
200			}
201			EOM
202			return 0;
203			}
204
205			sub has_include {
206			my ($inc) = @_;
207			return 1 if
208			try_compile_and_link(<<EOM);
209			#include "EXTERN.h"
210			#include "perl.h"
211			#include "XSUB.h"
212
213			#include <$inc>
214			int main _((int argc, char argv, char env))
215			{
216			return 0;
217			}
218			EOM
219			return 0;
220			}
221
222			sub init {
223			my $hints = File::Spec->catfile("hints", "$^O.pl");
224			if (-f $hints) {
225			print "Using hints $hints...\n";
226			local $self;
227			do $hints;
228			if (exists $self->{LIBS}) {
229			$LIBS = $self->{LIBS};
230			print "Extra libraries: @$LIBS...\n";
231			}
232			}
233
234			$DEFINE = '';
235
236			print "Looking for gettimeofday()... ";
237			my $has_gettimeofday;
238			if (exists $Config{d_gettimeod}) {
239			$has_gettimeofday++ if $Config{d_gettimeod};
240			} elsif (has_gettimeofday()) {
241			$DEFINE .= ' -DHAS_GETTIMEOFDAY';
242			$has_gettimeofday++;
243			}
244
245			if ($has_gettimeofday) {
246			print "found.\n";
247			} else {
248			die <<EOD
249			Your operating system does not seem to have the gettimeofday() function.
250			(or, at least, I cannot find it)
251
252			There is no way Time::HiRes is going to work.
253
254			I am awfully sorry but I cannot go further.
255
256			Aborting configuration.
257
258			EOD
259			}
260
261			print "Looking for setitimer()... ";
262			my $has_setitimer;
263			if (exists $Config{d_setitimer}) {
264			$has_setitimer++ if $Config{d_setitimer};
265			} elsif (has_x("setitimer(ITIMER_REAL, 0, 0)")) {
266			$has_setitimer++;
267			$DEFINE .= ' -DHAS_SETITIMER';
268			}
269
270			if ($has_setitimer) {
271			print "found.\n";
272			} else {
273			print "NOT found.\n";
274			}
275
276			print "Looking for getitimer()... ";
277			my $has_getitimer;
278			if (exists $Config{'d_getitimer'}) {
279			$has_getitimer++ if $Config{'d_getitimer'};
280			} elsif (has_x("getitimer(ITIMER_REAL, 0)")) {
281			$has_getitimer++;
282			$DEFINE .= ' -DHAS_GETITIMER';
283			}
284
285			if ($has_getitimer) {
286			print "found.\n";
287			} else {
288			print "NOT found.\n";
289			}
290
291			if ($has_setitimer && $has_getitimer) {
292			print "You have interval timers (both setitimer and getitimer).\n";
293			} else {
294			print "You do not have interval timers.\n";
295			}
296
297			print "Looking for ualarm()... ";
298			my $has_ualarm;
299			if (exists $Config{d_ualarm}) {
300			$has_ualarm++ if $Config{d_ualarm};
301			} elsif (has_x ("ualarm (0, 0)")) {
302			$has_ualarm++;
303			$DEFINE .= ' -DHAS_UALARM';
304			}
305
306			if ($has_ualarm) {
307			print "found.\n";
308			} else {
309			print "NOT found.\n";
310			if ($has_setitimer) {
311			print "But you have setitimer().\n";
312			print "We can make a Time::HiRes::ualarm().\n";
313			}
314			}
315
316			print "Looking for usleep()... ";
317			my $has_usleep;
318			if (exists $Config{d_usleep}) {
319			$has_usleep++ if $Config{d_usleep};
320			} elsif (has_x ("usleep (0)")) {
321			$has_usleep++;
322			$DEFINE .= ' -DHAS_USLEEP';
323			}
324
325			if ($has_usleep) {
326			print "found.\n";
327			} else {
328			print "NOT found.\n";
329			print "Let's see if you have select()... ";
330			if ($Config{'d_select'} eq 'define') {
331			print "found.\n";
332			print "We can make a Time::HiRes::usleep().\n";
333			} else {
334			print "NOT found.\n";
335			print "You won't have a Time::HiRes::usleep().\n";
336			}
337			}
338
339			print "Looking for nanosleep()... ";
340			my $has_nanosleep;
341			if (exists $Config{d_nanosleep}) {
342			if ($Config{d_nanosleep}) {
343			$has_nanosleep++;
344			$DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
345			}
346			} elsif ($^O ne 'mpeix' && # MPE/iX falsely finds nanosleep.
347			has_x ("nanosleep (NULL, NULL)")) {
348			$has_nanosleep++;
349			$DEFINE .= ' -DTIME_HIRES_NANOSLEEP';
350			}
351
352			if ($has_nanosleep) {
353			print "found.\n";
354			print "You can mix subsecond sleeps with signals, if you want to.\n";
355			print "(It's still not portable, though.)\n";
356			} else {
357			print "NOT found.\n";
358			my $nt = ($^O eq 'os2' ? '' : 'not');
359			print "You can$nt mix subsecond sleeps with signals.\n";
360			print "(It would not be portable anyway.)\n";
361			}
362
363			my $has_w32api_windows_h;
364			if ($^O eq 'cygwin') {
365			print "Looking for <w32api/windows.h>... ";
366			if (has_include('w32api/windows.h')) {
367			$has_w32api_windows_h++;
368			$DEFINE .= ' -DHAS_W32API_WINDOWS_H';
369			}
370			if ($has_w32api_windows_h) {
371			print "found.\n";
372			} else {
373			print "NOT found.\n";
374			}
375			}
376
377			if ($DEFINE) {
378			$DEFINE =~ s/^\s+//;
379			if (open(XDEFINE, ">xdefine")) {
380			print XDEFINE $DEFINE, "\n";
381			close(XDEFINE);
382			}
383			}
384			}
385
386			sub doMakefile {
387			my @makefileopts = ();
388
389			if ($] >= 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' => $XSOPT,
403			# do not even think about 'INC' => '-I/usr/ucbinclude', Solaris will avenge.
404			'INC' => '', # e.g., '-I/usr/include/other'
405			'INSTALLDIRS' => 'perl',
406			'dist' => {
407			'CI' => 'ci -l',
408			'COMPRESS' => 'gzip -9f',
409			'SUFFIX' => 'gz',
410			},
411			clean => { FILES => "xdefine" },
412			realclean => { FILES=> 'const-c.inc const-xs.inc' },
413			);
414
415			if ($ENV{PERL_CORE}) {
416			push @makefileopts, MAN3PODS => {};
417			}
418
419			WriteMakefile(@makefileopts);
420			}
421
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 = $_;
429			if ($macro eq 'd_nanosleep') {
430			$macro =~ s/d_(.*)/TIME_HIRES_\U$1/;
431			} else {
432			$macro =~ s/d_(.*)/HAS_\U$1/;
433			}
434			push @names, {name => $_, macro => $macro, value => 1,
435			default => ["IV", "0"]};
436			}
437			ExtUtils::Constant::WriteConstants(
438			NAME => 'Time::HiRes',
439			NAMES => \@names,
440			);
441			} else {
442			my $file;
443			foreach $file ('const-c.inc', 'const-xs.inc') {
444			my $fallback = File::Spec->catfile('fallback', $file);
445			local $/;
446			open IN, "<$fallback" or die "Can't open $fallback: $!";
447			open OUT, ">$file" or die "Can't open $file: $!";
448			print OUT <IN> or die $!;
449			close OUT or die "Can't close $file: $!";
450			close IN or die "Can't close $fallback: $!";
451			}
452			}
453			}
454
455			sub main {
456			print "Configuring Time::HiRes...\n";
457			if ($] == 5.007002) {
458			die "Cannot Configure Time::HiRes for Perl $], aborting.\n";
459			}
460
461			if ($^O =~ /Win32/i) {
462			$DEFINE = '-DSELECT_IS_BROKEN';
463			$LIBS = [];
464			} else {
465			init();
466			}
467			doMakefile;
468			doConstants;
469			my $make = $Config{'make'} \|\| "make";
470			unless (exists $ENV{PERL_CORE} && $ENV{PERL_CORE}) {
471			print <<EOM;
472			Now you may issue '$make'. Do not forget also '$make test'.
473			EOM
474			if ((exists $ENV{LC_ALL} && $ENV{LC_ALL} =~ /utf-?8/i) \|\|
475			(exists $ENV{LC_CTYPE} && $ENV{LC_CTYPE} =~ /utf-?8/i) \|\|
476			(exists $ENV{LANG} && $ENV{LANG} =~ /utf-?8/i)) {
477			print <<EOM;
478			NOTE: if you get an error like this (the line number may vary):
479			Makefile:91: *** missing separator
480			then set the environment variable LC_ALL to "C" and retry
481			from scratch (re-run perl "Makefile.PL").
482			EOM
483			}
484			}
485			}
486
487			&main;
488
489			# EOF