diff --git a/ChangeLog b/ChangeLog
index 1c3e6ff78b..9b7a655987 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2017-06-23  Gabriel F. T. Gomes  <gftg@linux.vnet.ibm.com>
+
+	* include/float.h: Include libc-header-start.h to get the
+	definition of __GLIBC_USE.
+
 2017-06-23  Paul A. Clarke  <pc@us.ibm.com>
 
 	* sysdeps/ieee754/flt-32/e_powf.c: Optimized implementation utilizing
diff --git a/include/float.h b/include/float.h
index a5b357dc96..736868fd52 100644
--- a/include/float.h
+++ b/include/float.h
@@ -1,6 +1,9 @@
 #ifndef _LIBC_FLOAT_H
 #define _LIBC_FLOAT_H
 
+#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+#include <bits/libc-header-start.h>
+
 #ifndef _ISOMAC
 # define __STDC_WANT_IEC_60559_TYPES_EXT__
 #endif