# HG changeset patch
# User Joel E. Denny <jdenny@clemson.edu>
# Date 1249047150 14400
# Node ID 392f877029a8d502c9c5d3e7f7786436ea01d387
# Parent  064d47cfb04ef03c52332bb61cb47b47a958bdf4
update-copyright: support EOL=\r\n

* build-aux/update-copyright: Implement that.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2009-07-31  Joel E. Denny  <jdenny@clemson.edu>
+
+	update-copyright: support EOL=\r\n
+	* build-aux/update-copyright: Implement that.
+
 2009-07-31  Joel E. Denny  <jdenny@clemson.edu>
 
 	update-copyright: automatically format copyright statements
diff --git a/build-aux/update-copyright b/build-aux/update-copyright
--- a/build-aux/update-copyright
+++ b/build-aux/update-copyright
@@ -107,6 +107,9 @@
 my $prefix_max = 5;
 my $margin = 72;
 
+# Unless the file consistently uses "\r\n" as the EOL, use "\n" instead.
+my $eol = /(?:^|[^\r])\n/ ? "\n" : "\r\n";
+
 my $leading;
 my $prefix;
 my $ws;
@@ -164,7 +167,7 @@
                 || ($new =~ s/^([\S]+)(?: |$)//))
               {
                 my $line = $1;
-                $new_wrapped .= $new_wrapped ? "\n" : $leading;
+                $new_wrapped .= $new_wrapped ? $eol : $leading;
                 $new_wrapped .= "$prefix$line";
               }
             else