diff -r 945dc995daa7 -r b23f3c2e0c73 config/companion_libs.in
--- a/config/companion_libs.in	Sun May 24 22:04:14 2009 +0000
+++ b/config/companion_libs.in	Mon May 25 18:22:26 2009 +0000
@@ -36,20 +36,25 @@
 source config/companion_libs/mpfr.in
 endif
 
-config PPL_CLOOG
+config PPL_CLOOG_MPC
     bool
-    prompt "PPL and GLooG/PPL"
+    prompt "PPL, GLooG/PPL and MPC"
     help
-      gcc-4.4.0 and above requires both PPL and CLooG/PPL to build some
-      parts of the optimiser (GRAPHITE loop optimisation, to be precise).
+      gcc-4.4.0 and above requires PPL and CLooG/PPL to build some parts
+      of the optimiser (GRAPHITE loop optimisation, to be precise).
+      
+      In addition to those, gcc-4.4 also optionally uses MPC to enable
+      additional optimisations on complex numbers. Although MPC is optional,
+      crosstool-NG requires it and uses it to build gcc >= 4.4.0.
       
       These will be automatically selected if you choose gcc>=4.4.0, but you
       can say 'Y' here, although it is unknown yet if any other component
       can use them.
 
-if PPL_CLOOG
+if PPL_CLOOG_MPC
 source config/companion_libs/ppl.in
 source config/companion_libs/cloog.in
+source config/companion_libs/mpc.in
 endif
 
 endmenu