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-rw-r--r--py/modmath.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/py/modmath.c b/py/modmath.c
index 48ba470582..69b67ff1f0 100644
--- a/py/modmath.c
+++ b/py/modmath.c
@@ -65,8 +65,10 @@ MATH_FUN_1(sqrt, sqrt)
MATH_FUN_2(pow, pow)
/// \function exp(x)
MATH_FUN_1(exp, exp)
+#if MICROPY_PY_MATH_SPECIAL_FUNCTIONS
/// \function expm1(x)
MATH_FUN_1(expm1, expm1)
+#endif
/// \function log2(x)
MATH_FUN_1(log2, log2)
/// \function log10(x)