From 1153c31bbbbc6aa8ad90b7d7941d9c2f9572d8b8 Mon Sep 17 00:00:00 2001
From: David Garske <david@wolfssl.com>
Date: Wed, 9 Dec 2015 09:53:59 -0800
Subject: [PATCH] Added compile time check for ALT_ECC_SIZE requiring
 USE_FAST_MATH.

---
 wolfssl/wolfcrypt/ecc.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/wolfssl/wolfcrypt/ecc.h b/wolfssl/wolfcrypt/ecc.h
index 880b36237..a23fa71f2 100644
--- a/wolfssl/wolfcrypt/ecc.h
+++ b/wolfssl/wolfcrypt/ecc.h
@@ -85,6 +85,10 @@ typedef struct {
  * Do not enable ALT_ECC_SIZE and disable fast math in the configuration.
  */
 
+#ifndef USE_FAST_MATH
+    #error USE_FAST_MATH must be defined to use ALT_ECC_SIZE
+#endif
+
 #ifndef FP_MAX_BITS_ECC
     #define FP_MAX_BITS_ECC           528
 #endif