From b16a214fee75cb00078a7038de394073ef8148ee Mon Sep 17 00:00:00 2001
From: ashinn <ashinn@users.noreply.github.com>
Date: Sat, 23 Mar 2013 21:16:21 +0100
Subject: [PATCH] sexp_bignum_sqrt is only needed if SEXP_USE_MATH is enabled.

---
 bignum.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/bignum.c b/bignum.c
index 71524faf..de697f98 100644
--- a/bignum.c
+++ b/bignum.c
@@ -477,6 +477,8 @@ sexp sexp_bignum_expt (sexp ctx, sexp a, sexp b) {
   return sexp_bignum_normalize(res);
 }
 
+#if SEXP_USE_MATH
+
 #define SEXP_MAX_ACCURATE_FLONUM_SQRT 1.12589990684262e15 /* 2^50 */
 
 sexp sexp_bignum_sqrt (sexp ctx, sexp a) {  /* Babylonian method */
@@ -515,6 +517,8 @@ sexp sexp_bignum_sqrt (sexp ctx, sexp a) {  /* Babylonian method */
   return sexp_bignum_normalize(res);
 }
 
+#endif  /* SEXP_USE_MATH */
+
 /************************ ratios ******************************/
 
 #if SEXP_USE_RATIOS