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-rw-r--r--Include/pymath.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/Include/pymath.h b/Include/pymath.h
index 1ea9ac1437..ed76053b81 100644
--- a/Include/pymath.h
+++ b/Include/pymath.h
@@ -169,7 +169,7 @@ PyAPI_FUNC(void) _Py_set_387controlword(unsigned short);
#pragma float_control (pop)
#define Py_NAN __icc_nan()
#else /* ICC_NAN_RELAXED as default for Intel Compiler */
- static union { unsigned char buf[8]; double __icc_nan; } __nan_store = {0,0,0,0,0,0,0xf8,0x7f};
+ static const union { unsigned char buf[8]; double __icc_nan; } __nan_store = {0,0,0,0,0,0,0xf8,0x7f};
#define Py_NAN (__nan_store.__icc_nan)
#endif /* ICC_NAN_STRICT */
#endif /* __INTEL_COMPILER */