announce-gen: use Digest::SHA when possible

* build-aux/announce-gen: Use Digest::SHA when possible, falling
back to Digest::SHA1 if necessary.

diff --git a/ChangeLog b/ChangeLog
index 7b67d0f..0076e06 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2012-03-20  Reuben Thomas  <rrt@sc3d.org>
+
+       announce-gen: use Digest::SHA when possible
+       * build-aux/announce-gen: Use Digest::SHA when possible, falling
+       back to Digest::SHA1 if necessary.
+
 2012-03-20  Jim Meyering  <meyering@redhat.com>
 
        tests: avoid gcc warnings about argv vs. const initializers

diff --git a/build-aux/announce-gen b/build-aux/announce-gen
index 3ca90a9..b9c9360 100755 (executable)
--- a/build-aux/announce-gen
+++ b/build-aux/announce-gen
@@ -3,7 +3,7 @@ eval '(exit $?0)' && eval 'exec perl -wS "$0" ${1+"$@"}'
     if 0;
 # Generate a release announcement message.
 
-my $VERSION = '2012-01-06 07:46'; # UTC
+my $VERSION = '2012-03-20 23:17'; # UTC
 # The definition above must lie within the first 8 lines in order
 # for the Emacs time-stamp write hook (at end) to update it.
 # If you change this file with Emacs, please let the write hook
@@ -30,7 +30,8 @@ use strict;
 
 use Getopt::Long;
 use Digest::MD5;
-use Digest::SHA1;
+eval { require Digest::SHA; }
+  or eval { use Digest::SHA1; };
 use POSIX qw(strftime);
 
 (my $ME = $0) =~ s|.*/||;