diff options
| -rw-r--r-- | math/complex.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/math/complex.h b/math/complex.h index 3e4ea051ec..870c0689b0 100644 --- a/math/complex.h +++ b/math/complex.h @@ -52,7 +52,7 @@ __BEGIN_DECLS #undef I #define I _Complex_I -#if defined(__clang__) +#if defined __USE_ISOC11 && defined __clang__ /* Clang casts types to _Complex instead of using __builtin_complex. */ #define __CMPLX(x, y, t) (+(_Complex t){(t)(x), (t)(y)}) #define CMPLX(x, y) __CMPLX(x, y, double) |