RTS: merge back PRINT_GCSTATS and GCSTATS switches

fix #241

Author: ulysses4ever

gibbon-rts/Makefile

@@ -61,10 +61,6 @@ ifeq ($(GCSTATS), 1)
 	RSFLAGS += --features=gcstats
 endif
 
-ifeq ($(PRINT_GCSTATS), 1)
-	CFLAGS += -D_GIBBON_PRINT_GCSTATS
-endif
-
 ifeq ($(POINTER), 1)
 	CFLAGS += -D_GIBBON_POINTER
 endif

gibbon-rts/rts-c/gibbon_rts.c

@@ -2027,7 +2027,7 @@ int gib_exit(void)
     GibShadowstack *wstack = DEFAULT_WRITE_SHADOWSTACK;
     GibOldgen *oldgen = DEFAULT_GENERATION;
 
-#ifdef _GIBBON_PRINT_GCSTATS
+#ifdef _GIBBON_GCSTATS
     // Print GC statistics.
     gib_gc_stats_print(GC_STATS);
 #endif

gibbon-rts/rts-c/gibbon_rts.h

@@ -16,8 +16,7 @@
  *
  * _GIBBON_VERBOSITY=int     verbosity level for debug output
  * _GIBBON_DEBUG             enables various assertions if present
- * _GIBBON_GCSTATS           collect GC statistics if present
- * _GIBBON_PRINT_GCSTATS     print GC statistics if present
+ * _GIBBON_GCSTATS           collect and print GC statistics if present
  * _GIBBON_GENGC             only use old reference counted GC set to 0
  * _GIBBON_BOUNDSCHECK       boundscheck vector accesses
  * _GIBBON_BUMPALLOC_LISTS   bump allocated linked lists