1.1 --- a/config/cc/gcc.in.2	Thu Dec 09 18:55:42 2010 +0100
     1.2 +++ b/config/cc/gcc.in.2	Fri Jan 28 18:53:37 2011 +0100
     1.3 @@ -24,6 +24,14 @@
     1.4        On some systems (eg. Cygwin), PPL and/or CLooG may not
     1.5        build properly (yet), so you'll have to say 'N' here.
     1.6  
     1.7 +# The way LTO works is a bit twisted.
     1.8 +# See: http://gcc.gnu.org/wiki/LinkTimeOptimization#Requirements
     1.9 +# Basically:
    1.10 +#   - if binutils has plugins: LTO is handled by ld/gold by loading
    1.11 +#     the plugin when linking
    1.12 +#   - if binutils does not have plugins: LTO is handled by collect2
    1.13 +# In any case, LTO support does not depend on plugins, but takes
    1.14 +# advantage of it
    1.15  config CC_GCC_USE_LTO
    1.16      bool
    1.17      prompt "Enable LTO"