diff --git a/configure.ac b/configure.ac
index 7b59029f..beccf1e7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -189,7 +189,6 @@ AC_CHECK_MATH_FUNC(tgamma, [.5])
 AC_CHECK_MATH_FUNC(y0, [.5])
 AC_CHECK_MATH_FUNC(y1, [.5])
 AC_CHECK_MATH_FUNC(pow, [2,2])
-AC_CHECK_MATH_FUNC(pow10, [2])
 AC_CHECK_MATH_FUNC(atan2, [.5,.5])
 AC_CHECK_MATH_FUNC(hypot, [.5,.5])
 AC_CHECK_MATH_FUNC(remainder, [3,2])
diff --git a/libm.h b/libm.h
index 9b1fae9f..d8cfe18c 100644
--- a/libm.h
+++ b/libm.h
@@ -128,11 +128,6 @@ LIBM_DDD(pow)
 #else
 LIBM_DDD_NO(pow)
 #endif
-#ifdef HAVE_POW10
-LIBM_DD(pow10)
-#else
-LIBM_DD_NO(pow10)
-#endif
 #ifdef HAVE_JN
 LIBM_DID(jn)
 #endif