joachim99@2: #!/usr/bin/perl -w
joachim99@2: 
joachim99@2: # this script patches a config.status file, to use our own perl script
joachim99@2: # in the main loop
joachim99@2: # we do it this way to circumvent hacking (and thereby including)
joachim99@2: # autoconf function (which are GPL) into our LGPL acinclude.m4.in
joachim99@2: # written by Michael Matz <matz@kde.org>
joachim99@2: # adapted by Dirk Mueller <mueller@kde.org>
joachim99@2: 
joachim99@2: # we have to change two places
joachim99@2: # 1. the splitting of the substitutions into chunks of 90 (or even 48 in
joachim99@2: #    later autoconf's
joachim99@2: # 2. the big main loop which patches all Makefile.in's
joachim99@2: use File::Basename;
joachim99@2: 
joachim99@2: my $ac_aux_dir = dirname($0);
joachim99@2: my ($flag);
joachim99@2: local $ac_version = 0;
joachim99@2: my $vpath_seen = 0;
joachim99@2: $flag = 0;
joachim99@2: 
joachim99@2: while (<>) {
joachim99@2: # usage of $flag: 0 -- we have seen nothing yet
joachim99@2: #   1 -- we are in (1)
joachim99@2: #   2 -- we have ended (1)
joachim99@2: #   3 -- we are in (2)
joachim99@2: #   4 -- we ended (2)
joachim99@2: 
joachim99@2:     if ($flag == 4) {
joachim99@2:         print;
joachim99@2:     } elsif ($flag == 0) {
joachim99@2: # 1. begins with (including): "ac_max_sed_\S+\s*=\s*[0-9]+..."
joachim99@2: #    ends with (excluding) "CONFIG_FILE=..."
joachim99@2: #    in later autoconf (2.14.1) there is no CONFIG_FILES= line,
joachim99@2: #    but instead the (2) directly follow (1)
joachim99@2:         if (/^\s*ac_max_sed_([a-z]+).*=\s*([0-9]+)/ ) {
joachim99@2: 	    $flag = 1;
joachim99@2: 	    if ($1 eq 'lines') {
joachim99@2:                 # lets hope its different with 2141, 
joachim99@2:                 # wasn't able to verify that
joachim99@2:               if ($2 eq '48') {
joachim99@2:                 $ac_version = 250;
joachim99@2:               }
joachim99@2:               else {
joachim99@2: 	        $ac_version = 2141;
joachim99@2:               }
joachim99@2: 	    } elsif ($1 eq 'cmds') {
joachim99@2: 	        $ac_version = 213;
joachim99@2: 	    }
joachim99@2: 	    # hmm, we don't know the autoconf version, but we try anyway
joachim99@2: 	} else {
joachim99@2: 	    print;
joachim99@2: 	}
joachim99@2:     } elsif ($flag == 1) {
joachim99@2:         if (/^\s*CONFIG_FILES=/ && ($ac_version != 250)) {
joachim99@2: 	     print;
joachim99@2: 	     $flag = 2;
joachim99@2: 	} elsif (/^\s*for\s+ac_file\s+in\s+.*CONFIG_FILES/ ) {
joachim99@2: 	     $flag = 3;
joachim99@2: 	}
joachim99@2:     } elsif ($flag == 2) {
joachim99@2: # 2. begins with: "for ac_file in.*CONFIG_FILES"  (the next 'for' after (1))
joachim99@2: #    end with: "rm -f conftest.s\*"
joachim99@2: # on autoconf 250, it ends with '# CONFIG_HEADER section'
joachim99@2: 	if (/^\s*for\s+ac_file\s+in\s+.*CONFIG_FILES/ ) {
joachim99@2: 	    $flag = 3;
joachim99@2: 	} else {
joachim99@2: 	    print;
joachim99@2: 	}
joachim99@2:     } elsif ($flag == 3) {
joachim99@2:         if (/^\s*rm\s+-f\s+conftest/ ) {
joachim99@2: 	    $flag = 4;
joachim99@2: 	    &insert_main_loop();
joachim99@2: 	} elsif (/^\s*rm\s+-f\s+.*ac_cs_root/ ) {
joachim99@2: 	    $flag = 4;
joachim99@2: 	    &insert_main_loop();
joachim99@2: 	    #die "hhhhhhh";
joachim99@2: 	    if ($ac_version != 2141) {
joachim99@2: 	        print STDERR "hmm, don't know autoconf version\n";
joachim99@2: 	    }
joachim99@2:         } elsif (/^\#\s*CONFIG_HEADER section.*/) {
joachim99@2:           $flag = 4;
joachim99@2:           &insert_main_loop();
joachim99@2:           if($ac_version != 250) {
joachim99@2:             print STDERR "hmm, something went wrong :-(\n";
joachim99@2:           }
joachim99@2: 	} elsif (/VPATH/ ) {
joachim99@2: 	    $vpath_seen = 1;
joachim99@2: 	}
joachim99@2:     }
joachim99@2: }
joachim99@2: 
joachim99@2: die "wrong input (flag != 4)" unless $flag == 4;
joachim99@2: print STDERR "hmm, don't know autoconf version\n" unless $ac_version;
joachim99@2: 
joachim99@2: sub insert_main_loop {
joachim99@2: 
joachim99@2:   if ($ac_version == 250) {
joachim99@2:     &insert_main_loop_250();
joachim99@2:   }
joachim99@2:   else {
joachim99@2:     &insert_main_loop_213();
joachim99@2:   }
joachim99@2: }
joachim99@2: 
joachim99@2: sub insert_main_loop_250 {
joachim99@2: 
joachim99@2:   print <<EOF;
joachim99@2:   #echo Doing the fast build of Makefiles -- autoconf $ac_version
joachim99@2: EOF
joachim99@2:     if ($vpath_seen) {
joachim99@2:         print <<EOF;
joachim99@2:         # VPATH subst was seen in original config.status main loop
joachim99@2:   echo '/^[ 	]*VPATH[ 	]*=[^:]*\$/d' >>\$tmp/subs.sed
joachim99@2: EOF
joachim99@2:       }
joachim99@2:   print <<EOF;
joachim99@2:   rm -f \$tmp/subs.files
joachim99@2:   for ac_file in .. \$CONFIG_FILES ; do
joachim99@2:       if test "x\$ac_file" != x..; then
joachim99@2:           echo \$ac_file >> \$tmp/subs.files
joachim99@2:       fi
joachim99@2:   done
joachim99@2:   if test -f \$tmp/subs.files ; then
joachim99@2:       perl $ac_aux_dir/config.pl "\$tmp/subs.sed" "\$tmp/subs.files" "\$srcdir" "\$INSTALL"
joachim99@2:   fi
joachim99@2:   rm -f \$tmp/subs.files
joachim99@2: 
joachim99@2: fi
joachim99@2: EOF
joachim99@2:   return;
joachim99@2: }
joachim99@2: 
joachim99@2: sub insert_main_loop_213 {
joachim99@2:     print <<EOF;
joachim99@2: #echo Doing the fast build of Makefiles -- autoconf $ac_version
joachim99@2: if test "x\$ac_cs_root" = "x" ; then
joachim99@2:     ac_cs_root=conftest
joachim99@2: fi
joachim99@2: EOF
joachim99@2:     if ($vpath_seen) {
joachim99@2:       print <<EOF;
joachim99@2: # VPATH subst was seen in original config.status main loop
joachim99@2: echo '/^[ 	]*VPATH[ 	]*=[^:]*\$/d' >> \$ac_cs_root.subs
joachim99@2: EOF
joachim99@2:     }
joachim99@2:     print <<EOF;
joachim99@2: rm -f \$ac_cs_root.sacfiles
joachim99@2: for ac_file in .. \$CONFIG_FILES ; do
joachim99@2:     if test "x\$ac_file" != x..; then
joachim99@2:         echo \$ac_file >> \$ac_cs_root.sacfiles
joachim99@2:     fi
joachim99@2: done
joachim99@2: if test -f \$ac_cs_root.sacfiles ; then
joachim99@2:     perl $ac_aux_dir/config.pl "\$ac_cs_root.subs" "\$ac_cs_root.sacfiles" "\$ac_given_srcdir" "\$ac_given_INSTALL"
joachim99@2: fi
joachim99@2: rm -f \$ac_cs_root.s*
joachim99@2: 
joachim99@2: EOF
joachim99@2:     return;
joachim99@2: }