diff --git a/src/bignum.c b/src/bignum.c
index 1a5553d5a..6bcdb5b6b 100644
--- a/src/bignum.c
+++ b/src/bignum.c
@@ -1949,6 +1949,7 @@ static SgObject small_bignum_to_string(SgBignum *b, int radix, int use_upper)
 }
 
 /* FIXME this is also in number.c */
+#if !defined(__GLIBC__) || !__GLIBC_PREREQ(2, 26)
 static inline double roundeven(double v)
 {
   double r;
@@ -1966,6 +1967,7 @@ static inline double roundeven(double v)
   }
   return r;
 }
+  #endif
 /* this is used here */
 static SgBignum * bignum_expt(SgBignum *b, long exponent);
 
diff --git a/src/roundeven.inc b/src/roundeven.inc
index 36d3c5535..1a29eefce 100644
--- a/src/roundeven.inc
+++ b/src/roundeven.inc
@@ -31,6 +31,7 @@
 #include <math.h>
 #include <float.h>
 
+#if !defined(__GLIBC__) || !__GLIBC_PREREQ(2, 26)
 static inline double roundeven(double v)
 {
   double r;
@@ -50,3 +51,5 @@ static inline double roundeven(double v)
 }
 
 #endif
+
+#endif