[CMake] Joining & Normalizing paths

[Robert Dailey]

I don't see a way to join or normalize paths in CMake. For example, there
is a "base path" that the user can specify in a cache variable, like so:

BASE_PATH = "T:/stuff/"

Later in my CMake script, I join a subpath to it like so:

"${BASE_PATH}/morestuff"

The problem is, this becomes:

"T:/stuff//morestuff"

Notice the double slash. Also if the user specifies backslashes in the
variable, you get this:

"T:\stuff\/morestuff"

Normalization would be ideal here, or a way to properly join the paths like
so:

path( JOIN "${BASE_PATH}" "morestuff" )

Which would yield the cmake path:

"T:/stuff/morestuff"

Is any of this possible? How do I work around this?

---------
Robert Dailey
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