If realloc() fails in scm_realloc, then do a complete GC with complete

sweep directly.

libguile/gc-malloc.c

@@ -113,21 +113,17 @@ scm_realloc (void *mem, size_t size)
   scm_i_scm_pthread_mutex_lock (&scm_i_sweep_mutex);
   scm_gc_running_p = 1;
 
-  // We don't want these sweep statistics to influence results for
-  // cell GC, so we don't collect statistics.
-  scm_i_sweep_all_segments ("realloc", NULL);
-  
-  SCM_SYSCALL (ptr = realloc (mem, size));
-  if (ptr)
-    { 
-      scm_gc_running_p = 0;
-      scm_i_pthread_mutex_unlock (&scm_i_sweep_mutex);
-      return ptr;
-    }
-
   scm_i_gc ("realloc");
+
+  /*
+   We don't want these sweep statistics to influence results for
+   cell GC, so we don't collect statistics.
+   
+   realloc() failed, so we're really desparate to free memory. Run a
+   full sweep.
+  */
   scm_i_sweep_all_segments ("realloc", NULL);
-  
+
   scm_gc_running_p = 0;
   scm_i_pthread_mutex_unlock (&scm_i_sweep_mutex);
   

libguile/gc.c

@@ -664,7 +664,7 @@ scm_i_gc (const char *what)
      the time taken.
   */
   scm_gc_time_taken += (scm_c_get_internal_run_time () - t_before_gc);
-  assert(scm_cells_allocated == scm_i_marked_count ());
+    
   scm_i_thread_wake_up ();
   /*
     For debugging purposes, you could do