diff --git a/ChangeLog b/ChangeLog
index 289b3bd..5ed0e92 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2018-05-23  Mark R. Bannister
+
+	* rifle: rifle was not handling exceptions when parsing XML documents.
+
 2018-01-09  Mark R. Bannister
 
 	* trifle: trifle not handling incomplete escape sequences correctly.
diff --git a/configure b/configure
index 785b322..b8a0b15 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.63 for aquilon-tools 1.46.
+# Generated by GNU Autoconf 2.63 for aquilon-tools 1.48.
 #
 # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
 # 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
@@ -594,8 +594,8 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 # Identity of this package.
 PACKAGE_NAME='aquilon-tools'
 PACKAGE_TARNAME='aquilon-tools'
-PACKAGE_VERSION='1.46'
-PACKAGE_STRING='aquilon-tools 1.46'
+PACKAGE_VERSION='1.48'
+PACKAGE_STRING='aquilon-tools 1.48'
 PACKAGE_BUGREPORT=''
 
 ac_default_prefix=/usr/local
@@ -1313,7 +1313,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures aquilon-tools 1.46 to adapt to many kinds of systems.
+\`configure' configures aquilon-tools 1.48 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1384,7 +1384,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of aquilon-tools 1.46:";;
+     short | recursive ) echo "Configuration of aquilon-tools 1.48:";;
    esac
   cat <<\_ACEOF
 
@@ -1474,7 +1474,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-aquilon-tools configure 1.46
+aquilon-tools configure 1.48
 generated by GNU Autoconf 2.63
 
 Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
@@ -1488,7 +1488,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by aquilon-tools $as_me 1.46, which was
+It was created by aquilon-tools $as_me 1.48, which was
 generated by GNU Autoconf 2.63.  Invocation command line was
 
   $ $0 $@
@@ -2466,7 +2466,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='aquilon-tools'
- VERSION='1.46'
+ VERSION='1.48'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -5454,7 +5454,7 @@ exec 6>&1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by aquilon-tools $as_me 1.46, which was
+This file was extended by aquilon-tools $as_me 1.48, which was
 generated by GNU Autoconf 2.63.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5517,7 +5517,7 @@ Report bugs to <bug-autoconf@gnu.org>."
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_version="\\
-aquilon-tools config.status 1.46
+aquilon-tools config.status 1.48
 configured by $0, generated by GNU Autoconf 2.63,
   with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
 
diff --git a/configure.ac b/configure.ac
index 2673e01..519a005 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 AC_PREREQ(2.61)
-AC_INIT([aquilon-tools], [1.46])
+AC_INIT([aquilon-tools], [1.48])
 AC_CONFIG_AUX_DIR([config])
 AC_CONFIG_HEADERS([config.h])
 AC_CANONICAL_TARGET