Bug 58290. Add --disable-logging to turn of NS_LOGGING altogether. r=cls, sr=leaf

configure.in

@@ -2836,6 +2836,14 @@ MOZ_ARG_DISABLE_BOOL(async-dns,
 [  --disable-async-dns     Disable separate dns thread],
   NO_UNIX_ASYNC_DNS=1)
 
+MOZ_ARG_DISABLE_BOOL(logging,
+[  --disable-logging       Disable nsLogging facilities],
+  NS_DISABLE_LOGGING=1)
+if test "$NS_DISABLE_LOGGING"; then
+  AC_DEFINE(NS_DISABLE_LOGGING)
+fi
+AC_SUBST(NS_DISABLE_LOGGING)
+
 dnl build mozilla/xpfe by default
 MOZ_BUILD_XPFE=1
 MOZ_ARG_DISABLE_BOOL(build-xpfe,