From Mike Wittman, perl script to help remain project files for dumb VisualStudio 6.0 limitations.

VisualStudio/fixup-vc6-dsps.pl

@@ -0,0 +1,106 @@
+#!perl -w
+use Getopt::Long qw(:config bundling);
+use File::Basename;
+use File::Find;
+use strict;
+
+sub usage {
+  my $file = basename($0);
+  "usage: $file [options]
+
+This script substitutes hardcoded values for the \$(PlatformName) and
+\$(ConfigurationName) variables in the OpenSceneGraph, Producer, and
+OpenThreads .dsp files.  Those variables are useful in VC 7.x and VC 8,
+but are incompatible with VC 6.0.
+
+To run, open a shell and execute
+        perl $file
+
+Options:
+  -h, --help               print help information
+";
+}
+
+my ($print_help);
+my $opt_success = GetOptions('h|help'           => \$print_help);
+
+if (!$opt_success || $print_help) { print usage; exit !$print_help; }
+
+
+# update the entire text block of settings for the given named project
+# and configuration
+sub update_config_block {
+  my ($project_name, $project_config, $is_static, $text) = @_;
+  local($_) = $text;
+
+  s/\$\(PlatformName\)/win32/g;
+  s/\$\(ConfigurationName\)/$project_config/g;
+
+  $_;
+}
+
+sub backup_file {
+  my ($file, $backup_file) = @_;
+  local($/) = undef;            # slurp whole file
+
+  my $contents;
+  open(ORIG, "$file") || die "$!";
+  $contents = <ORIG>;
+  close(ORIG);
+
+  open(BACKUP, "> $backup_file") || die "$!";
+  print BACKUP $contents;
+  close(BACKUP);
+}
+
+
+# Update all the configuration text blocks, one-by-one, in the dsp file.
+# Backs up existing dsps using a .bak extension.
+sub update_dsp {
+  my ($project_file) = @_;
+
+  print STDERR $project_file, "\n";
+  
+  my $backup = $project_file.".bak";
+  backup_file($project_file, $backup);
+
+  open(INPUT, "$backup") || die "$!";
+  open(OUTPUT, "> $project_file") || die "$!";
+  while (defined($_ = <INPUT>)) {
+    print OUTPUT $_;
+    if (/^!(?:ELSE)?IF  "\$\(CFG\)" == "(.+?) - Win32 (.+)"\s*$/) {
+      # start of config block
+      
+      my ($project, $config) = ($1, $2);
+      my $is_static = ($config =~ s/\s*Static\s*$//);
+
+      my $config_text = "";
+      <INPUT>;                  # read blank line
+      while (defined($_ = <INPUT>) && !/^\s*$/) {
+        s/\r?\n/\n/;
+        $config_text .= $_;
+      }
+
+      $config_text = update_config_block($project, $config, $is_static, $config_text);
+
+      print OUTPUT map "$_\r\n", ("", split(/\n/, $config_text), "");
+    }
+  }
+  close(OUTPUT);
+  close(INPUT);
+}
+
+sub callback {
+  update_dsp($_) if /\.dsp$/i;
+}
+
+my (@dirs) = qw(.
+                ../../Producer/VC++6.0/Producer
+                ../../OpenThreads/win32_src);
+
+# change to directory containing script to ensure paths work properly
+chdir dirname($0);
+
+find(\&callback, @dirs);
+
+exit;