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-rw-r--r--lib/math.in.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/math.in.h b/lib/math.in.h
index 73b13fa17..d80047cd6 100644
--- a/lib/math.in.h
+++ b/lib/math.in.h
@@ -2579,7 +2579,7 @@ _GL_EXTERN_C int rpl_isnanl (long double x) _GL_ATTRIBUTE_CONST;
# if defined isnan || defined GNULIB_NAMESPACE
_GL_MATH_CXX_REAL_FLOATING_DECL_1 (isnan)
# undef isnan
-# if __GNUC__ >= 6 || (defined __clang__ && !((defined __APPLE__ && defined __MACH__) || (defined __FreeBSD__ && __clang_major__ < 7) || defined __OpenBSD__ || (defined _WIN32 && !defined __CYGWIN__)))
+# if __GNUC__ >= 6 || (defined __clang__ && !((defined __APPLE__ && defined __MACH__ && __clang_major__ < 12) || (defined __FreeBSD__ && __clang_major__ < 7) || defined __OpenBSD__ || (defined _WIN32 && !defined __CYGWIN__)))
/* This platform's <cmath> possibly defines isnan through a set of inline
functions. */
_GL_MATH_CXX_REAL_FLOATING_DECL_2 (isnan, rpl_isnan, bool)