Windows build failing due to missing include header

[choikwa]

Build on MSVC fails due to missing decl for memcpy. Line 94 at src/wasm-config.h.in,

#elif COMPILER_IS_MSVC

#define WASM_UNUSED
#define WASM_WARN_UNUSED _Check_return_
#define WASM_INLINE __inline
#define WASM_STATIC_ASSERT(x) _STATIC_ASSERT(x)
#define WASM_UNLIKELY(x) (x)
#define WASM_LIKELY(x) (x)
#define WASM_PRINTF_FORMAT(format_arg, first_arg)

__inline unsigned long wasm_clz_u32(unsigned long mask) {
  unsigned long index;
  _BitScanReverse(&index, mask);
  return sizeof(unsigned long) * 8 - (index + 1);
}

__inline unsigned long wasm_clz_u64(unsigned __int64 mask) {
#if _M_X64
  unsigned long index;
  _BitScanReverse64(&index, mask);
  return sizeof(unsigned __int64) * 8 - (index + 1);
#elif _M_IX86
  unsigned long index;
  unsigned long high_mask;
  memcpy(&high_mask, (unsigned char*)&mask + sizeof(unsigned long),
         sizeof(unsigned long));
  if (_BitScanReverse(&index, high_mask)) {
    return sizeof(unsigned long) * 8 - (index + 1);
  }

  unsigned long low_mask;
  memcpy(&low_mask, &mask, sizeof(unsigned long));
  _BitScanReverse(&index, low_mask);
  return sizeof(unsigned __int64) * 8 - (index + 1);
#else
#error unexpected architecture
#endif
}

Issue is fixed by include <string.h>

[Cellule]

I am aware of this issue and am working on various fixes for Windows