C1004: unexpected end-of-file found

[Robert Clark]

I'm trying to build the latest GPB with:

Microsoft Visual Studio Pro 2012, 

CMake 3.14.4 on Windows 10.

-Switching protobuf_WITH_ZLIB off

-Setting CMAKE_INSTALL_PREFIX to C:\<my user name here>\Documents\protobuf\install

-Setting protobuf_BUILD_TESTS to off 

CMake configured and generated w/o error but then

>nmake install

...

Scanning dependencies of target libprotobuf-lite

[  0%] Building CXX object CMakeFiles/libprotobuf-lite.dir/C_/Users/ClarkRG/Documents/protobuf/src/google/protobuf/any_lite.cc.obj/

any_lite.cc

C:\Users\ClarkRG\Documents\protobuf\src\google/protobuf/stubs/port.h(118) : fatal error C1004: unexpected end-of-file found

It builds fine in MSVS 2019.  

Elsewhere I see claims that the minimum MSVS version for GPB is 2008.

Seems _MSC_VER is...off somehow?

Thoughts?