[google][4.7]Port function reordering via linker plugin from google/gcc-4_6 branch

gcc/configure.ac

Index: gcc/configure.ac 
=================================================================== 
--- gcc/configure.ac	(revision 187620) 
+++ gcc/configure.ac	(working copy) 
@@ -1926,6 +1926,10 @@ case $use_collect2 in 
 ;; 
 esac 
 
+AC_DEFINE_UNQUOTED(FRPLUGINSONAME,"${host_function_reordering_plugin_soname}", 
+[Define to the name of the function reordering plugin DSO that must be 
+ passed to the linker's -plugin=LIB option.]) 
+ 
 AC_DEFINE_UNQUOTED(LTOPLUGINSONAME,"${host_lto_plugin_soname}", 
 [Define to the name of the LTO plugin DSO that must be 
 passed to the linker's -plugin=LIB option.])