fix --strict-warnings build
C++ style comments are not allowed in ISO C90
@@ -106,7 +106,7 @@ static __inline int CRYPTO_DOWN_REF(volatile int *val, int *ret, void *lock)
# if _WIN32_WCE >= 0x600
extern long __cdecl _InterlockedExchangeAdd(long volatile*, long);
# else
- // under Windows CE we still have old-style Interlocked* functions
+ /* under Windows CE we still have old-style Interlocked* functions */
extern long __cdecl InterlockedExchangeAdd(long volatile*, long);
# define _InterlockedExchangeAdd InterlockedExchangeAdd
# endif
