diff -N slic.m4
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ slic.m4	14 Aug 2012 19:12:26 -0000	1.1
@@ -0,0 +1,20 @@

+dnl Enable or disable slic logging system.
+AC_DEFUN(SLIC_ENABLE_LOG, [
+
+  AC_MSG_CHECKING(whether to enable SLIC logging system)
+
+  AC_ARG_ENABLE([slic-log],
+                AC_HELP_STRING([--enable-slic-log],
+                [Enable or disable SLIC logging system])
+             )
+
+  dnl echo "enable_slic_log=$enable_slic_log"
+
+  if test "${enable_slic_log}" != "no"; then
+    AC_MSG_RESULT(yes)
+  else
+    dnl Logging is enabled by default so only add to options if disabling.
+    SLIC_CONFIG_OPTS="$SLIC_CONFIG_OPTS --disable-log"
+    AC_MSG_RESULT(no)
+  fi
+])