[CMake] Escaping semicolons in COMPILE_FLAGS on msvc

[David Genest]

Hi, 

I have tried and tried, but haven't succeeded to include a semicolon as a COMPILE_FLAGS property for a file. I turn to you for wisdom:

I need to get this as a result in the pre-processor definitions: 

MYPATH=\"d:\\;.\\Lib\"

But when I use the following escape sequence in set_source_files_properties:

set_source_files_properties(source.c PROPERTIES COMPILE_FLAGS "-DMYPATH=\\\"d:\\\;.\\\\Lib\\\"")

the generated result is: MYPATH=\"d:\\";".\\Lib\"

note the quoted semicolon. Is there a quoting workaround to allow unquoted semicolons?

Thank you,

David.