Passing list variables to external project commands

Code
4

Unfortunately, your variant does not work as well:

set(CMAKE_C_COMPILER_LAUNCHER env DIR=/tmp)

ExternalProject_Add(name
	CONFIGURE_COMMAND cmake "-DCMAKE_C_COMPILER_LAUNCHER=${CMAKE_C_COMPILER_LAUNCHER}" ...
)

Which produces the following output:

cd ... && cmake -DCMAKE_C_COMPILER_LAUNCHER=env DIR=/tmp ...

Now I have to convert it to a string to make it work:

string(REPLACE ";" "$<SEMICOLON>" CMAKE_C_COMPILER_LAUNCHER_STR "${CMAKE_C_COMPILER_LAUNCHER}")

But this is pretty inconvenient.

PS. cmake version 3.28.3