diff -r 2f67667ee385 -r 61608c9365ab config/cc/gcc.in.2
--- a/config/cc/gcc.in.2	Thu Dec 09 18:55:42 2010 +0100
+++ b/config/cc/gcc.in.2	Fri Jan 28 18:53:37 2011 +0100
@@ -24,6 +24,14 @@
       On some systems (eg. Cygwin), PPL and/or CLooG may not
       build properly (yet), so you'll have to say 'N' here.
 
+# The way LTO works is a bit twisted.
+# See: http://gcc.gnu.org/wiki/LinkTimeOptimization#Requirements
+# Basically:
+#   - if binutils has plugins: LTO is handled by ld/gold by loading
+#     the plugin when linking
+#   - if binutils does not have plugins: LTO is handled by collect2
+# In any case, LTO support does not depend on plugins, but takes
+# advantage of it
 config CC_GCC_USE_LTO
     bool
     prompt "Enable LTO"