configure: remember to output CC for windows

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/configure b/configure
index cc453be..e45ae39 100755
--- a/configure
+++ b/configure
@@ -128,6 +128,7 @@
   echo "CONFIG_POSIX_FALLOCATE=y"  >> $config_host_mak
   echo "CONFIG_FADVISE=y"          >> $config_host_mak
   echo "CONFIG_SFAA=y"             >> $config_host_mak
+  echo "CC=$cc"			   >> $config_host_mak
   exit 0
 elif check_define __OpenBSD__ ; then
   targetos='OpenBSD'