make fma and lrint functions build without full fenv support

[musl] / src / math / fmaf.c

diff --git a/src/math/fmaf.c b/src/math/fmaf.c
index 0dccf10..cc427fb 100644 (file)
--- a/src/math/fmaf.c
+++ b/src/math/fmaf.c
@@ -54,7 +54,9 @@ float fmaf(float x, float y, float z)
         * If result is inexact, and exactly halfway between two float values,
         * we need to adjust the low-order bit in the direction of the error.
         */
+#ifdef FE_TOWARDZERO
        fesetround(FE_TOWARDZERO);
+#endif
        volatile double vxy = xy;  /* XXX work around gcc CSE bug */
        double adjusted_result = vxy + z;
        fesetround(FE_TONEAREST);