MSVC 2017

[DaniyelMe]

hi Mikhail Titov,

can you please update it, to work with MSVC 2017
i'm getting a lot of errors.
(e.g CMake Error at gtkmm/CMakeLists.txt:99 (string):
string no output variable specified
AND
CMake Error at gtkmm/CMakeLists.txt:138 (add_subdirectory):
The source directory
D:/**/gtkmm/glibmm

btw,
wanted to thank you for you great work!

[DaniyelMe]

To fix
CMake Error at gtkmm/CMakeLists.txt:99 (string): string no output variable specified
please change
string(TOUPPER ${CMAKE_BUILD_TYPE} BT)
to
STRING(TOUPPER "${CMAKE_BUILD_TYPE}" BT)

[mlt]

Thank you for your interest in the project! Do you feel like submitting a pull request? What build type do you use? As far as I remember, quotation is necessary if you have spaces.

As you can see there were not many updates for a while. Perhaps, it is time to revamp it.

[DaniyelMe]

All thanks to you!
I think gtkmm is a great tool but it's hard to make it work.

I'm not sure how to do the pull request, I'll try, I have some fixes.
I'm just testing it on Visual Studio 2017, so debug I guess.
You're right, but if either CMAKE_BUILD_TYPE or BT is not defined, i.e. an empty string, you can get the error