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599 cbradney 1
#!/usr/bin/env perl
3 paul 2
 
3
# this script patches a config.status file, to use our own perl script
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# in the main loop
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# we do it this way to circumvent hacking (and thereby including)
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# autoconf function (which are GPL) into our LGPL acinclude.m4.in
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# written by Michael Matz <matz@kde.org>
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# adapted by Dirk Mueller <mueller@kde.org>
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#
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#   This file is free software; you can redistribute it and/or
11
#   modify it under the terms of the GNU Library General Public
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#   License as published by the Free Software Foundation; either
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#   version 2 of the License, or (at your option) any later version.
14
 
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#   This library is distributed in the hope that it will be useful,
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#   but WITHOUT ANY WARRANTY; without even the implied warranty of
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#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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#   Library General Public License for more details.
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#   You should have received a copy of the GNU Library General Public License
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#   along with this library; see the file COPYING.LIB.  If not, write to
3875 mrdocs 22
#   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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#   Boston, MA 02110-1301, USA.
3 paul 24
 
25
# we have to change two places
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# 1. the splitting of the substitutions into chunks of 90 (or even 48 in
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#    later autoconf's
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# 2. the big main loop which patches all Makefile.in's
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599 cbradney 30
use strict;
3 paul 31
use File::Basename;
32
 
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my $ac_aux_dir = dirname($0);
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my ($flag);
599 cbradney 35
my $ac_version = 0;
3 paul 36
my $vpath_seen = 0;
37
$flag = 0;
38
 
39
while (<>) {
40
# usage of $flag: 0 -- we have seen nothing yet
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#   1 -- we are in (1)
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#   2 -- we have ended (1)
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#   3 -- we are in (2)
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#   4 -- we ended (2)
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46
    if ($flag == 4) {
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        print;
48
    } elsif ($flag == 0) {
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# 1. begins with (including): "ac_max_sed_\S+\s*=\s*[0-9]+..."
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#    ends with (excluding) "CONFIG_FILE=..."
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#    in later autoconf (2.14.1) there is no CONFIG_FILES= line,
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#    but instead the (2) directly follow (1)
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        if (/^\s*ac_max_sed_([a-z]+).*=\s*([0-9]+)/ ) {
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            $flag = 1;
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            if ($1 eq 'lines') {
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                # lets hope its different with 2141, 
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                # wasn't able to verify that
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              if ($2 eq '48') {
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                $ac_version = 250;
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              }
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              else {
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                $ac_version = 2141;
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              }
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            } elsif ($1 eq 'cmds') {
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                $ac_version = 213;
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            }
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            # hmm, we don't know the autoconf version, but we try anyway
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        } else {
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            print;
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        }
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    } elsif ($flag == 1) {
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        if (/^\s*CONFIG_FILES=/ && ($ac_version != 250)) {
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             print;
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             $flag = 2;
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        } elsif (/^\s*for\s+ac_file\s+in\s+.*CONFIG_FILES/ ) {
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             $flag = 3;
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        }
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    } elsif ($flag == 2) {
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# 2. begins with: "for ac_file in.*CONFIG_FILES"  (the next 'for' after (1))
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#    end with: "rm -f conftest.s\*"
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# on autoconf 250, it ends with '# CONFIG_HEADER section'
599 cbradney 82
#
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# gg: if a post-processing commands section is found first, 
3875 mrdocs 84
#    stop there and insert a new loop to honor the case/esac.
599 cbradney 85
# (pattern: /^\s+#\sRun the commands associated with the file./)
86
 
3 paul 87
        if (/^\s*for\s+ac_file\s+in\s+.*CONFIG_FILES/ ) {
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            $flag = 3;
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        } else {
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            print;
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        }
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    } elsif ($flag == 3) {
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        if (/^\s*rm\s+-f\s+conftest/ ) {
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            $flag = 4;
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            &insert_main_loop();
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        } elsif (/^\s*rm\s+-f\s+.*ac_cs_root/ ) {
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            $flag = 4;
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            &insert_main_loop();
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            #die "hhhhhhh";
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            if ($ac_version != 2141) {
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                print STDERR "hmm, don't know autoconf version\n";
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            }
599 cbradney 103
        } elsif (/^\#\s*CONFIG_(HEADER|COMMANDS) section.*|^\s+#\s(Run) the commands associated/) {
3 paul 104
          $flag = 4;
599 cbradney 105
          my $commands = defined $2;
3 paul 106
          &insert_main_loop();
599 cbradney 107
          $commands && insert_command_loop();
3 paul 108
          if($ac_version != 250) {
109
            print STDERR "hmm, something went wrong :-(\n";
110
          }
111
        } elsif (/VPATH/ ) {
112
            $vpath_seen = 1;
113
        }
114
    }
115
}
116
 
117
die "wrong input (flag != 4)" unless $flag == 4;
118
print STDERR "hmm, don't know autoconf version\n" unless $ac_version;
119
 
120
sub insert_main_loop {
121
 
122
  if ($ac_version == 250) {
123
    &insert_main_loop_250();
124
  }
125
  else {
126
    &insert_main_loop_213();
127
  }
128
}
129
 
130
sub insert_main_loop_250 {
131
 
132
  print <<EOF;
133
  #echo Doing the fast build of Makefiles -- autoconf $ac_version
134
EOF
135
    if ($vpath_seen) {
136
        print <<EOF;
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        # VPATH subst was seen in original config.status main loop
138
  echo '/^[     ]*VPATH[        ]*=[^:]*\$/d' >>\$tmp/subs.sed
139
EOF
140
      }
141
  print <<EOF;
142
  rm -f \$tmp/subs.files
143
  for ac_file in .. \$CONFIG_FILES ; do
144
      if test "x\$ac_file" != x..; then
145
          echo \$ac_file >> \$tmp/subs.files
146
      fi
147
  done
148
  if test -f \$tmp/subs.files ; then
149
      perl $ac_aux_dir/config.pl "\$tmp/subs.sed" "\$tmp/subs.files" "\$srcdir" "\$INSTALL"
150
  fi
151
  rm -f \$tmp/subs.files
152
 
153
fi
154
EOF
155
  return;
156
}
157
 
158
sub insert_main_loop_213 {
159
    print <<EOF;
160
#echo Doing the fast build of Makefiles -- autoconf $ac_version
161
if test "x\$ac_cs_root" = "x" ; then
162
    ac_cs_root=conftest
163
fi
164
EOF
165
    if ($vpath_seen) {
166
      print <<EOF;
167
# VPATH subst was seen in original config.status main loop
168
echo '/^[       ]*VPATH[        ]*=[^:]*\$/d' >> \$ac_cs_root.subs
169
EOF
170
    }
171
    print <<EOF;
172
rm -f \$ac_cs_root.sacfiles
173
for ac_file in .. \$CONFIG_FILES ; do
174
    if test "x\$ac_file" != x..; then
175
        echo \$ac_file >> \$ac_cs_root.sacfiles
176
    fi
177
done
178
if test -f \$ac_cs_root.sacfiles ; then
179
    perl $ac_aux_dir/config.pl "\$ac_cs_root.subs" "\$ac_cs_root.sacfiles" "\$ac_given_srcdir" "\$ac_given_INSTALL"
180
fi
181
rm -f \$ac_cs_root.s*
182
 
183
EOF
184
    return;
185
}
599 cbradney 186
 
187
sub insert_command_loop {
188
    print <<EOF;
189
  for ac_file in .. \$CONFIG_FILES ; do
190
EOF
191
}