Use -fno-strict-aliasing on 4.0 as well


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25861 a1c6a512-1295-4272-9138-f99709370657
diff --git a/tools/configure b/tools/configure
index 27609ca..5fa7903 100755
--- a/tools/configure
+++ b/tools/configure
@@ -2835,7 +2835,7 @@
    GCCOPTS="$GCCOPTS -Wno-pointer-sign"
  fi
 
- if test "$gccnum" -ge "401"; then
+ if test "$gccnum" -ge "400"; then
    # this is a lame hack to avoid "warning: dereferencing type-punned pointer
    # will break strict-aliasing rules"