error:'int64_t' does not name a type

I am trying to install OpenCOLLADA on windows system. I have successfully generated the cmake configuration.while installing build binaries it is giving me these error.

```
In file included from D:\OpenCOLLADA\OpenCOLLADA-src\common\libBuffer\src\CommonFWriteBufferFlusher.cpp:11:
D:/OpenCOLLADA/OpenCOLLADA-src/common/libBuffer/include/CommonFWriteBufferFlusher.h:87:9: error: 'int64_t' does not name a type; did you mean 'off64_t'?
typedef int64_t __int64;
^~~~~~~
off64_t
```

Start with common/libBuffer/include/CommonFWriteBufferFlusher.h at line 87 and reproduce the Windows build from the generated CMake configuration. Trace why int64_t is unavailable at that declaration, then rerun the build and confirm the reported compiler error is gone.

Written by the indexing model from the issue text.