Fix MSVC build

Signed-off-by: falkTX <falktx@falktx.com>

source/backend/engine/CarlaEngineInternal.cpp

@@ -705,7 +705,7 @@ static int64_t getTimeInMicroseconds() noexcept
 #if defined(_MSC_VER)
     struct _timeb tb;
     _ftime_s (&tb);
-    return ((int64) tb.time) * 1000 + tb.millitm;
+    return ((int64_t) tb.time) * 1000 + tb.millitm;
 #elif defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN)
     struct timeval tv;
     gettimeofday(&tv, nullptr);

source/modules/water/memory/Atomic.h

@@ -344,7 +344,19 @@ inline uint32 Atomic<uint32>::operator--() noexcept
     return castFromLong (_InterlockedDecrement (reinterpret_cast<volatile long*> (&value)));
 }
 
-# ifdef CARLA_OS_64BIT
+# ifndef CARLA_OS_64BIT
+template <>
+inline int64 Atomic<int64>::exchange (const int64 newValue) noexcept
+{
+    return castFrom64Bit (_InterlockedCompareExchange64 (reinterpret_cast<volatile int64*> (&value), castTo64Bit (value), castTo64Bit (newValue)));
+}
+
+template <>
+inline uint64 Atomic<uint64>::exchange (const uint64 newValue) noexcept
+{
+    return castFrom64Bit (_InterlockedCompareExchange64 (reinterpret_cast<volatile int64*> (&value), castTo64Bit (value), castTo64Bit (newValue)));
+}
+# else
 template <>
 inline int64 Atomic<int64>::exchange (const int64 newValue) noexcept
 {