1 files changed, 6 insertions, 4 deletions

diff --git a/src/floatfns.c b/src/floatfns.c
index 11cf657f105..29bdccf2989 100644
--- a/src/floatfns.c
+++ b/src/floatfns.c
@@ -47,15 +47,17 @@ Boston, MA 02111-1307, USA.  */
 #include <signal.h>
 
 #include <config.h>
-#include "lisp.h"
-#include "syssignal.h"
-
-#ifdef LISP_FLOAT_TYPE
 
+/* Put this before lisp.h so that lisp.h can define DBL_DIG if not defined.  */
 #if STDC_HEADERS
 #include <float.h>
 #endif
 
+#include "lisp.h"
+#include "syssignal.h"
+
+#ifdef LISP_FLOAT_TYPE
+
 /* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */
 #ifndef IEEE_FLOATING_POINT
 #if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \