CMakeLists.txt incorrectly detects x86 vs amd64

[schultetwin1]

Describe the bug
In our CMakeLists.txt files we use the following logic to detect if we are building for x86 versus amd64.

if ("${CMAKE_SIZEOF_VOID_P}" STREQUAL "8")
    set(TARGET_ARCH "amd64")
elseif ("${CMAKE_SIZEOF_VOID_P}" STREQUAL "4")
    set(TARGET_ARCH "x86")
endif()

This works great while we are building for x86 and amd64 only. However, if we decide to support arm64 this will break.

We have not yet decided to support arm or not, but regardless, this should be fixed just in case we decide to go forward with arm support.

[wes-b]

@schultetwin1 This is fixed now with the arm64 change IIRC?

[schultetwin1]

You are correct! This was fixed by #1108