math: use '#pragma STDC FENV_ACCESS ON' when fenv is accessed

[musl] / src / math / fmal.c

diff --git a/src/math/fmal.c b/src/math/fmal.c
index be64f14..ccbe434 100644 (file)
--- a/src/math/fmal.c
+++ b/src/math/fmal.c
@@ -162,6 +162,7 @@ static inline struct dd dd_mul(long double a, long double b)
  */
 long double fmal(long double x, long double y, long double z)
 {
+       #pragma STDC FENV_ACCESS ON
        long double xs, ys, zs, adj;
        struct dd xy, r;
        int oround;