2 files changed, 5 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index aec4443abf..be1ea9f506 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sat Mar 1 16:05:58 2014  Eric Wong  <[email protected]>
+
+	* gc.c (ruby_gc_set_params): fix building without RGenGC
+
 Sat Mar  1 11:08:00 2014  Aaron Patterson <[email protected]>
 
 	* ext/psych/lib/psych/visitors/yaml_tree.rb: support dumping Encoding
diff --git a/gc.c b/gc.c
index 2df56827cc..a677370e6b 100644
--- a/gc.c
+++ b/gc.c
@@ -5827,7 +5827,7 @@ ruby_gc_set_params(int safe_level)
     get_envparam_size  ("RUBY_GC_MALLOC_LIMIT_MAX", &gc_params.malloc_limit_max, 0);
     get_envparam_double("RUBY_GC_MALLOC_LIMIT_GROWTH_FACTOR", &gc_params.malloc_limit_growth_factor, 1.0);
 
-#ifdef RGENGC_ESTIMATE_OLDMALLOC
+#if (USE_RGENGC) && defined(RGENGC_ESTIMATE_OLDMALLOC)
     if (get_envparam_size("RUBY_GC_OLDMALLOC_LIMIT", &gc_params.oldmalloc_limit_min, 0)) {
 	rb_objspace_t *objspace = &rb_objspace;
 	objspace->rgengc.oldmalloc_increase_limit = gc_params.oldmalloc_limit_min;