--- a/lib/xalloc-oversized.h	2020-08-07 11:04:56.154698639 -0700
+++ b/lib/xalloc-oversized.h	2020-08-07 11:06:11.667997389 -0700
@@ -46,13 +46,13 @@
    positive and N must be nonnegative.  This is a macro, not a
    function, so that it works correctly even when SIZE_MAX < N.  */
 
-#if 7 <= __GNUC__ || __has_builtin (__builtin_add_overflow_p)
+#if ((7 <= __GNUC__ || __has_builtin (__builtin_add_overflow_p)) && !defined __INTEL_LLVM_COMPILER)
 # define xalloc_oversized(n, s) \
    __builtin_mul_overflow_p (n, s, (__xalloc_count_type) 1)
 #elif ((5 <= __GNUC__ \
         || (__has_builtin (__builtin_mul_overflow) \
             && __has_builtin (__builtin_constant_p))) \
-       && !__STRICT_ANSI__)
+       && !__STRICT_ANSI__ && !defined __INTEL_LLVM_COMPILER)
 # define xalloc_oversized(n, s) \
    (__builtin_constant_p (n) && __builtin_constant_p (s) \
     ? __xalloc_oversized (n, s) \