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-rw-r--r--src/internal/libm.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/internal/libm.h b/src/internal/libm.h
index 98bf5c68..9cd105fc 100644
--- a/src/internal/libm.h
+++ b/src/internal/libm.h
@@ -64,6 +64,12 @@ union ldshape {
/* Support signaling NaNs. */
#define WANT_SNAN 0
+#if WANT_SNAN
+#error SNaN is unsupported
+#else
+#define issignalingf_inline(x) 0
+#endif
+
#ifndef TOINT_INTRINSICS
#define TOINT_INTRINSICS 0
#endif