--- a/arm_simd.h
+++ b/arm_simd.h
@@ -307,28 +307,32 @@ inline uint64x2_t PMULL_HIGH(const uint64x2_t a, const uint64x2_t b)
 #endif
 }
 
+// This function will be removed in the next version of Crypto++:
+// https://github.com/weidai11/cryptopp/commit/31fa3384160071793bc428a32383938551b3652c
+#if !defined(_MSC_VER) || defined(_M_ARM)
 /// \brief Vector extraction
 /// \param a the first value
 /// \param b the second value
 /// \param c the byte count
 /// \return vector
 /// \details VEXT_U8() extracts the first <tt>c</tt> bytes of vector
 ///  <tt>a</tt> and the remaining bytes in <tt>b</tt>. VEXT_U8 is provided
 ///  as GCC inline assembly due to Clang and lack of support for the intrinsic.
 /// \since Crypto++ 8.0
 inline uint64x2_t VEXT_U8(uint64x2_t a, uint64x2_t b, unsigned int c)
 {
 #if defined(_MSC_VER)
     return vreinterpretq_u64_u8(vextq_u8(
         vreinterpretq_u8_u64(a), vreinterpretq_u8_u64(b), c));
 #else
     uint64x2_t r;
     __asm__ ("ext   %0.16b, %1.16b, %2.16b, %3   \n\t"
             :"=w" (r) : "w" (a), "w" (b), "I" (c) );
     return r;
 #endif
 }
+#endif
 
 /// \brief Vector extraction
 /// \tparam C the byte count
 /// \param a the first value