4 use ExtUtils::MakeMaker;
6 use Config qw(%Config);
8 use vars qw($opt_t $opt_w $opt_x);
10 my $PM = 'lib/Digest/SHA.pm';
11 my $SHASUM = 'shasum';
13 # 'use warnings' if possible, but stay portable
15 my($use_warnings, @EDITs);
16 my $warn_1 = 'BEGIN { $^W = 1 }';
17 my $warn_0 = 'BEGIN { $^W = 0 }';
19 eval "require warnings; import warnings";
20 $use_warnings = $@ ? 0 : 1;
22 local(@ARGV) = ($PM, $SHASUM);
25 (!$use_warnings && /^(use|no) warnings\b/) ||
26 ( $use_warnings && /^\Q$warn_1\E # use warnings\b/) ||
27 ( $use_warnings && /^\Q$warn_0\E # no warnings\b/)) {
35 local($^I, @ARGV) = ('', @EDITs);
38 s/^\Q$warn_1\E # (.*)$/$1/;
39 s/^\Q$warn_0\E # (.*)$/$1/;
42 s/^(use warnings\b.*)$/$warn_1 # $1/;
43 s/^(no warnings\b.*)$/$warn_0 # $1/;
49 getopts('twx'); # -t is no longer used, but allow it anyway
52 push(@defines, '-DNO_SHA_384_512') if $opt_x;
53 my $define = join(' ', @defines);
55 # Workaround for DEC compiler bug, adapted from Digest::MD5
59 if (defined($Config{ccname})) {
60 if (grep(/VMS_VAX/, @INC) && ($Config{ccname} eq 'DEC')) {
61 # VAX optimizer, even up to v6.4, gets stuck
62 push(@extra, OPTIMIZE => "/Optimize=(NODISJOINT)");
67 # Enhance performance on Intel when using gcc
69 if ($Config{archname} =~ /^i[3456]86/ && $Config{ccname} eq 'gcc') {
70 push(@extra, OPTIMIZE => '-O1 -fomit-frame-pointer');
73 push(@extra, CCFLAGS => '-W -Wall ' . $Config{ccflags}) if $opt_w;
76 'NAME' => 'Digest::SHA',
77 'VERSION_FROM' => $PM,
81 'EXE_FILES' => [ $SHASUM ],
82 'INSTALLDIRS' => ($] >= 5.010 and $] < 5.011) ? 'perl' : 'site',
86 my $MMversion = $ExtUtils::MakeMaker::VERSION || '0.00_00';
87 $attr{NO_META} = 1 if $MMversion ge '6.10_03';