Is it possible to build CoreCLR for the x86 architecture? It doesn't seem to be possible to build it for x86.
Currently, as of writing this answer, no.
The developer guide specifies this:
CoreCLR repo can be built from a regular, non-admin command prompt. Currently, the repo supports building CoreCLR.dll (and its various native binaries), mscorlib.dll and the accompanying tests for the following platforms and build configurations:
- X64 - Debug and Release
But i'd watch out for updates as the releases come.