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root |
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#!/usr/bin/perl -w |
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require 5.003; # keep this compatible, an old perl is all we may have before |
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# we build the new one |
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# The idea is to move the regen_headers target out of the Makefile so that |
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# it is possible to rebuild the headers before the Makefile is available. |
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# (and the Makefile is unavailable until after Configure is run, and we may |
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# wish to make a clean source tree but with current headers without running |
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# anything else. |
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use strict; |
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my $perl = $^X; |
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require 'regen_lib.pl'; |
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# keep warnings.pl in sync with the CPAN distribution by not requiring core |
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# changes |
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safer_unlink ("warnings.h", "lib/warnings.pm"); |
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my %gen = ( |
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'autodoc.pl' => [qw[pod/perlapi.pod pod/perlintern.pod]], |
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'bytecode.pl' => [qw[ext/ByteLoader/byterun.h |
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ext/ByteLoader/byterun.c |
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ext/B/B/Asmdata.pm]], |
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'embed.pl' => [qw[proto.h embed.h embedvar.h global.sym |
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perlapi.h perlapi.c]], |
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'keywords.pl' => [qw[keywords.h]], |
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'opcode.pl' => [qw[opcode.h opnames.h pp_proto.h pp.sym]], |
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'regcomp.pl' => [qw[regnodes.h]], |
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'warnings.pl' => [qw[warnings.h lib/warnings.pm]] |
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); |
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sub do_cksum { |
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my $pl = shift; |
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my %cksum; |
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for my $f (@{ $gen{$pl} }) { |
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local *FH; |
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if (open(FH, $f)) { |
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local $/; |
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$cksum{$f} = unpack("%32C*", <FH>); |
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close FH; |
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} else { |
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warn "$0: $f: $!\n"; |
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} |
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} |
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return %cksum; |
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} |
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foreach my $pl (qw (keywords.pl opcode.pl embed.pl bytecode.pl |
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regcomp.pl warnings.pl autodoc.pl)) { |
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print "$^X $pl\n"; |
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my %cksum0; |
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%cksum0 = do_cksum($pl) unless $pl eq 'warnings.pl'; # the files were removed |
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system "$^X $pl"; |
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next if $pl eq 'warnings.pl'; # the files were removed |
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my %cksum1 = do_cksum($pl); |
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my @chg; |
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for my $f (@{ $gen{$pl} }) { |
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push(@chg, $f) |
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if !defined($cksum0{$f}) || |
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!defined($cksum1{$f}) || |
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$cksum0{$f} ne $cksum1{$f}; |
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} |
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print "Changed: @chg\n" if @chg; |
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} |
