Remove the dlopen() pointer from struct filedef.

This pointer is almost never needed, and it increases the size of the filedef
struct for all files (of which there are a huge number for large builds).
Instead keep a bit field marking whether the file is a loaded object and if so
call a new function to unload it.  In load.c we keep a simple linked list of
loaded objects (of which there will be very few typically) and their dlopen()
pointers.

1 files changed, 1 insertions, 0 deletions

diff --git a/file.c b/file.c
index 444a81d1..b77efad1 100644
--- a/file.c
+++ b/file.c
@@ -322,6 +322,7 @@ rehash_file (struct file *from_file, const char *to_hname)
   MERGE (is_target);
   MERGE (cmd_target);
   MERGE (phony);
+  MERGE (loaded);
   MERGE (ignore_vpath);
 #undef MERGE