[2236] Add status whether debugging is enabled in configure output

This also fixes a bug where the AM_CONDITIONAL was not set properly.

configure.ac

@@ -17,11 +17,11 @@ AC_ARG_ENABLE([debug],
   AS_HELP_STRING([--enable-debug],
     [enable debugging (default is no)]),
   [case "${enableval}" in
-    yes) debug_enabled=true ;;
-    no)  debug_enabled=false ;;
+    yes) debug_enabled=yes ;;
+    no)  debug_enabled=no ;;
     *)   AC_MSG_ERROR([bad value ${enableval} for --enable-debug]) ;;
-  esac],[debug_enabled=false])
-AM_CONDITIONAL([DEBUG_ENABLED], [test x$debug = xtrue])
+  esac],[debug_enabled=no])
+AM_CONDITIONAL([DEBUG_ENABLED], [test x$debug_enabled = xyes])
 AM_COND_IF([DEBUG_ENABLED], [AC_DEFINE([ENABLE_DEBUG], [1], [Enable debugging facilities?])])
 
 # Libtool configuration
@@ -1433,6 +1433,7 @@ Features:
   $enable_features
 
 Developer:
+  Enable Debugging: $debug_enabled
   Google Tests: $enable_gtest
   Valgrind: $found_valgrind
   C++ Code Coverage: $USE_LCOV