add --with-ldap to distributed config flags.

build-farm.conf

@@ -81,7 +81,8 @@ my $branch;
 	 # don't use --prefix or --with-pgport here 
 	 # they are set up by the script
      # per-branch config can be done here or
-     # more simply by using the example below.
+     # more simply by using the examples below.
+	 # (default ldap flag is below because it's not supported in all branches)
 	 config_opts => 
 	 [qw(
 		 --enable-cassert 
@@ -117,11 +118,18 @@ my $branch;
 
 ##################################
 #
-# example of per branch processing
+# examples of per branch processing
 # tailor as required for your site.
 #
 ##################################
 
+# ldap support is new as of 8.2
+if ($branch eq 'HEAD' || $branch ge 'REL8_2')
+{
+	push(@{$conf{config_opts}},"--with-ldap");
+}
+
+
 if ($branch eq 'HEAD')
 {
 #     push(@{$conf{config_opts}},"--enable-depend");