2 files changed, 7 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 1b09c7bb7b..071ca253f9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Dec 13 00:08:09 2005  Tanaka Akira  <akr@m17n.org>
+
+	* sprintf.c (rb_str_format): fix a GC problem.
+	  [ruby-dev:28001]
+
 Mon Dec 12 15:54:56 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 
 	* test/openssl/test_ssl.rb (test_parallel): call GC.start to close
diff --git a/sprintf.c b/sprintf.c
index 9746d189e1..5e85d9522f 100644
--- a/sprintf.c
+++ b/sprintf.c
@@ -454,6 +454,7 @@ rb_f_sprintf(argc, argv)
 		int base, bignum = 0;
 		int len, pos;
 		VALUE tmp;
+                volatile VALUE tmp1;
 
 		switch (*p) {
 		  case 'd':
@@ -602,7 +603,7 @@ rb_f_sprintf(argc, argv)
 		    val = rb_big_clone(val);
 		    rb_big_2comp(val);
 		}
-		tmp = rb_big2str(val, base);
+		tmp1 = tmp = rb_big2str(val, base);
 		s = RSTRING(tmp)->ptr;
 		if (*s == '-') {
 		    if (base == 10) {