diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6bd0082f83e5..dea503ebca27 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2008-09-11  Janis Johnson  <janis187@us.ibm.com>
+
+	* ginclude/float.h (DEC_EVAL_METHOD): Correct the macro name.
+
 2008-09-11  Richard Guenther  <rguenther@suse.de>
 
 	* tree-ssa-uncprop.c (associate_equivalences_with_edges): Avoid
diff --git a/gcc/ginclude/float.h b/gcc/ginclude/float.h
index 23ce8f42c914..5d9f918e8388 100644
--- a/gcc/ginclude/float.h
+++ b/gcc/ginclude/float.h
@@ -233,8 +233,8 @@ Boston, MA 02110-1301, USA.  */
 	 2  evaluate all operations and constants to the range and
 	    precision of the _Decimal128 type.  */
 
-#undef DECFLT_EVAL_METHOD
-#define DECFLT_EVAL_METHOD	__DECFLT_EVAL_METHOD__
+#undef DEC_EVAL_METHOD
+#define DEC_EVAL_METHOD	__DEC_EVAL_METHOD__
 
 #endif /* __STDC_WANT_DEC_FP__ */
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5407fdd1239d..430fef40400a 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2008-09-11  Janis Johnson  <janis187@us.ibm.com>
+
+	* gcc.dg/dfp/dec-eval-method-2.c: New test.
+
 2008-09-11  Joseph Myers  <joseph@codesourcery.com>
 
 	* lib/compat.exp, gcc.dg/compat/struct-layout-1.exp,
diff --git a/gcc/testsuite/gcc.dg/dfp/dec-eval-method-2.c b/gcc/testsuite/gcc.dg/dfp/dec-eval-method-2.c
new file mode 100644
index 000000000000..55001cc3822b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/dfp/dec-eval-method-2.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-std=gnu99 -D__STDC_WANT_DEC_FP__" } */
+                                                                                
+/* N1107 4: Characteristics of decimal floating types <float.h>.
+   C99 5.2.4.2.2a[2] (New).
+
+   Verify that DEC_EVAL_METHOD is defined by float.h.
+   DEC_EVAL_METHOD in <float.h>.  */
+
+#ifdef DEC_EVAL_METHOD
+#error DEC_EVAL_METHOD is defined before float.h is included
+#endif
+
+#include <float.h>
+
+#ifndef DEC_EVAL_METHOD
+#error DEC_EVAL_METHOD is not defined after float.h is included
+#endif
+
+int i;