Add support for environment variables

[mdenson]

I am working on a dynamically linked library project and it would be nice to be able to set LD_LIBRARY_PATH to a local directory prior to running or debugging the test programs. By the way, I have limited understanding of vs code plugins, so perhaps I am just missing something. In my launch.json I have something like this:
"environment": [ { "name": "LD_LIBRARY_PATH", "value": "../lib" } ],
which works to set the library path prior to executing. When I try to add the same to the settings.json makefile.launchConfigurations it does not set the environment var and the launch fails.

[gcampbell-msft]

@mdenson You are correct, scanning our source code and definition for an environment object in the makefile.launchConfigurations, we don't currently support an environment modification, I'll mark this as a feature request.

Thanks! Please upvote the issue as we often use upvotes to prioritize issues.