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1 | #!/usr/bin/perl |
2 | ||
3 | # This script reorders config_h.SH after metaconfig | |
4 | # Changing metaconfig is too complicated | |
5 | # | |
43dddb59 | 6 | # Copyright (C) 2005-2007 by H.Merijn Brand (m)'07 [18-04-2007] |
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7 | # |
8 | # You may distribute under the terms of either the GNU General Public | |
9 | # License or the Artistic License, as specified in the README file. | |
10 | ||
11 | use strict; | |
12 | use warnings; | |
13 | ||
14 | my ($cSH, $ch, @ch, %ch) = ("config_h.SH"); | |
15 | open $ch, "<$cSH" or die "Cannot open $cSH: $!\n"; | |
16 | { local $/ = "\n\n"; | |
17 | @ch = <$ch>; | |
18 | close $ch; | |
19 | } | |
20 | ||
21 | sub ch_index () | |
22 | { | |
23 | %ch = (); | |
24 | foreach my $ch (0 .. $#ch) { | |
25 | while ($ch[$ch] =~ m{^/\* ([A-Z]\w+)}gm) { | |
26 | $ch{$1} = $ch; | |
27 | } | |
28 | } | |
29 | } # ch_index | |
30 | ||
31 | my %dep = ( | |
32 | # This symbol must be defined BEFORE ... | |
9b70c55f | 33 | BYTEORDER => [ qw( UVSIZE ) ], |
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34 | LONGSIZE => [ qw( BYTEORDER ) ], |
35 | MULTIARCH => [ qw( BYTEORDER MEM_ALIGNBYTES ) ], | |
9b70c55f | 36 | USE_CROSS_COMPILE => [ qw( BYTEORDER MEM_ALIGNBYTES ) ], |
253687a9 | 37 | HAS_QUAD => [ qw( I64TYPE ) ], |
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38 | HAS_GETGROUPS => [ qw( Groups_t ) ], |
39 | HAS_SETGROUPS => [ qw( Groups_t ) ], | |
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40 | ); |
41 | ||
42 | my $changed; | |
43 | do { | |
44 | $changed = 0; | |
45 | foreach my $sym (keys %dep) { | |
46 | ch_index; | |
47 | foreach my $dep (@{$dep{$sym}}) { | |
48 | print STDERR "Check if $sym\t($ch{$sym}) precedes $dep\t($ch{$dep})\n"; | |
49 | $ch{$sym} < $ch{$dep} and next; | |
50 | my $ch = splice @ch, $ch{$sym}, 1; | |
51 | splice @ch, $ch{$dep}, 0, $ch; | |
52 | $changed++; | |
53 | ch_index; | |
54 | } | |
55 | } | |
56 | } while ($changed); | |
57 | ||
43dddb59 MB |
58 | # 30327 |
59 | for (grep m{echo .Extracting \$CONFIG_H} => @ch) { | |
60 | my $case = join "\n", | |
61 | qq{case "\$CONFIG_H" in}, | |
62 | qq{already-done) echo "Not re-extracting config.h" ;;}, | |
63 | qq{*)}, ""; | |
64 | s{^(?=echo .Extracting)}{$case}m; | |
65 | } | |
66 | push @ch, ";;\nesac\n"; | |
67 | ||
68 | ||
253687a9 | 69 | open $ch, "> $cSH" or die "Cannot write $cSH: $!\n"; |
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70 | print $ch <<EOW; |
71 | # THIS IS A GENERATED FILE | |
72 | # DO NOT HAND-EDIT | |
73 | # | |
74 | # See Porting/config_h.pl | |
75 | ||
76 | EOW | |
77 | ||
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78 | print $ch @ch; |
79 | close $ch; |