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authorLarry Wall <lwall@netlabs.com>1994-10-17 23:00:00 +0000
committerLarry Wall <lwall@netlabs.com>1994-10-17 23:00:00 +0000
commita0d0e21ea6ea90a22318550944fe6cb09ae10cda (patch)
treefaca1018149b736b1142f487e44d1ff2de5cc1fa /configpm
parent85e6fe838fb25b257a1b363debf8691c0992ef71 (diff)
downloadperl-a0d0e21ea6ea90a22318550944fe6cb09ae10cda.tar.gz
perl 5.000perl-5.000
[editor's note: this commit combines approximate 4 months of furious releases of Andy Dougherty and Larry Wall - see pod/perlhist.pod for details. Andy notes that; Alas neither my "Irwin AccuTrack" nor my DC 600A quarter-inch cartridge backup tapes from that era seem to be readable anymore. I guess 13 years exceeds the shelf life for that backup technology :-(. ]
Diffstat (limited to 'configpm')
-rwxr-xr-xconfigpm115
1 files changed, 104 insertions, 11 deletions
diff --git a/configpm b/configpm
index 95fa9491af..117c4450ed 100755
--- a/configpm
+++ b/configpm
@@ -1,11 +1,18 @@
-#!./miniperl
+#!./miniperl -w
@ARGV = "./config.sh";
+$config_pm = 'lib/Config.pm';
-open STDOUT, ">lib/Config.pm"
- or die "Can't open lib/Config.pm: $!\n";
+# list names to put first (and hence lookup fastest)
+@fast = qw(osname osvers so libpth archlib
+ sharpbang startsh shsharp
+ dynamic_ext static_ext extensions dl_src
+ sig_name ccflags cppflags intsize);
+
+
+open CONFIG, ">$config_pm" or die "Can't open $config_pm: $!\n";
$myver = sprintf("%.3f", $]);
-print <<"ENDOFBEG";
+print CONFIG <<"ENDOFBEG";
package Config;
require Exporter;
\@ISA = (Exporter);
@@ -14,15 +21,101 @@ require Exporter;
\$] == $myver or die sprintf
"Perl lib version ($myver) doesn't match executable version (%.3f)\\n", \$];
+# This file was created by configpm when Perl was built. Any changes
+# made to this file will be lost the next time perl is built.
+
ENDOFBEG
+@fast{@fast} = @fast;
+@non_v=();
+@v_fast=();
+@v_others=();
+
while (<>) {
- s:^#!/bin/sh::;
- s/'undef'/undef/; # So we can say "if $Config{'foo'}".
- s/=true$/='true'/; # Catch CONFIG=true line from Configure.
- s/^(\w+)=/\$Config{'$1'} = /;
- s/$/;/ unless (/^#/ || /^$/);
- print $_;
+ next if m:^#!/bin/sh:;
+ # Catch CONFIG=true and PATCHLEVEL=n line from Configure.
+ s/^(\w+)=(true|\d+)\s*$/$1='$2'\n/;
+ unless (m/^(\w+)='(.*)'\s*$/){
+ push(@non_v, "#$_"); # not a name='value' line
+ next;
+ }
+ if (!$fast{$1}){ push(@v_others, $_); next; }
+ push(@v_fast,$_);
+}
+
+foreach(@non_v){ print CONFIG $_ }
+
+print CONFIG "\n",
+ "\$config_sh=<<'!END!OF!CONFIG!';\n",
+ join("", @v_fast, sort @v_others),
+ "!END!OF!CONFIG!\n\n";
+
+
+print CONFIG <<'ENDOFEND';
+
+tie %Config, Config;
+sub TIEHASH { bless {} }
+sub FETCH {
+ # check for cached value (which maybe undef so we use exists not defined)
+ return $_[0]->{$_[1]} if (exists $_[0]->{$_[1]});
+
+ my($value); # search for the item in the big $config_sh string
+ return undef unless (($value) = $config_sh =~ m/^$_[1]='(.*)'\s*$/m);
+
+ $value = undef if $value eq 'undef'; # So we can say "if $Config{'foo'}".
+ $_[0]->{$_[1]} = $value; # cache it
+ return $value;
+}
+
+sub FIRSTKEY {
+ $prevpos = 0;
+ my $key;
+ ($key) = $config_sh =~ m/^(.*)=/;
+ $key;
+}
+
+sub NEXTKEY {
+ my ($pos, $len);
+ $pos = $prevpos;
+ $pos = index( $config_sh, "\n", $pos) + 1;
+ $prevpos = $pos;
+ $len = index( $config_sh, "=", $pos) - $pos;
+ $len > 0 ? substr( $config_sh, $pos, $len) : undef;
}
-print "1;\n";
+
+sub EXISTS{
+ exists($_[0]->{$_[1]}) or $config_sh =~ m/^$_[1]=/m;
+}
+
+sub readonly { die "\%Config::Config is read-only\n" }
+
+sub STORE { &readonly }
+sub DELETE{ &readonly }
+sub CLEAR { &readonly }
+
+
+1;
+ENDOFEND
+
+close(CONFIG);
+
+# Now do some simple tests on the Config.pm file we have created
+unshift(@INC,'lib');
+require $config_pm;
+import Config;
+
+die "$0: $config_pm not valid"
+ unless $Config{'CONFIG'} eq 'true';
+
+die "$0: error processing $config_pm"
+ if defined($Config{'an impossible name'})
+ or $Config{'CONFIG'} ne 'true' # test cache
+ ;
+
+die "$0: error processing $config_pm"
+ if eval '$Config{"cc"} = 1'
+ or eval 'delete $Config{"cc"}'
+ ;
+
+
exit 0;