Further modernize Hurd code by enforcing strict prototypes and no implicit function declarations.

Most of the changes land in one of these buckets:
* Removed unused declarations.
* Used (void) to represent no parameters instead of () which means an
  undeterminate number of parameters.
* Included missing header files whenever necessary (stdlib.h,
  sys/mman.h, etc)
* Typedefed function pointers to be able to fully declare the parameter
  types.
* Added declarations of library functions that are used elsewhere
  (example is libps/ps.h).
* Made functions static whenever they are only used in that file.
* Forwarded declarations of some methods that were made static.
Message-Id: <ZDD1o7/tVYeZew+G@jupiter.tail36e24.ts.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/libtrivfs/dyn-classes.c b/libtrivfs/dyn-classes.c
index edc13a0f..ad72192b 100644
--- a/libtrivfs/dyn-classes.c
+++ b/libtrivfs/dyn-classes.c
@@ -23,7 +23,7 @@
 /* Auxiliary info for each vector element.  */
 struct aux
 {
-  void (*free_el)();
+  void (*free_el)(void *);
   unsigned refs;
 };
 
@@ -63,7 +63,7 @@ static pthread_mutex_t dyn_lock = PTHREAD_MUTEX_INITIALIZER;
    cases: (1) An error is encountered trying to grow one of the vectors, (2)
    when the element is eventually freed by drop_el.  */
 static error_t
-add_el (void *el, void (*free_el)(),
+add_el (void *el, void (*free_el)(void *),
 	void *vec_v, struct aux **aux_vec,
 	size_t *sz, size_t *num)
 {