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-rw-r--r--math/math.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/math/math.h b/math/math.h
index 6427c72..f136399 100644
--- a/math/math.h
+++ b/math/math.h
@@ -1015,7 +1015,8 @@ enum
/* Return nonzero value if X is positive or negative infinity. */
# if __HAVE_DISTINCT_FLOAT128 && !__GNUC_PREREQ (7,0) \
- && !defined __SUPPORT_SNAN__ && !defined __cplusplus
+ && !defined __SUPPORT_SNAN__ && !defined __cplusplus \
+ && !defined __clang__
/* Since __builtin_isinf_sign is broken for float128 before GCC 7.0,
use the helper function, __isinff128, with older compilers. This is
only provided for C mode, because in C++ mode, GCC has no support