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, 2 insertions, 2 deletions

diff --git a/makeint.h b/makeint.h
index 9d351c9..72124ec 100644
--- a/makeint.h
+++ b/makeint.h
@@ -490,8 +490,8 @@ int guile_gmake_setup (const gmk_floc *flocp);
 
 /* Loadable object support.  Sets to the strcached name of the loaded file.  */
 typedef int (*load_func_t)(const gmk_floc *flocp);
-int load_file (const gmk_floc *flocp, const char **filename, int noerror,
-	       void **dlp);
+int load_file (const gmk_floc *flocp, const char **filename, int noerror);
+void unload_file (const char *name);
 
 /* We omit these declarations on non-POSIX systems which define _POSIX_VERSION,
    because such systems often declare them in header files anyway.  */