PR10543: do module cache cleaning before copying new file into the cache

... otherwise the new stuff can get cleaned before use.

* cache.cxx (add_to_cache): Do clean_cache() first, not last.

1 files changed, 1 insertions, 1 deletions

diff --git a/main.cxx b/main.cxx
index bc0d7389..15447efc 100644
--- a/main.cxx
+++ b/main.cxx
@@ -1229,7 +1229,7 @@ main (int argc, char * const argv [])
          << endl;
   else
     {
-      // Update cache. Cache cleaning is kicked off at the end of this function.
+      // Update cache. Cache cleaning is kicked off at the beginning of this function.
       if (s.use_cache)
         add_to_cache(s);