[cmake-developers] Semi-colons in COMPILE_DEFINITIONS

[Stephen Kelly]

Hi there,

Yesterday I merged (and then reverted) the compile-defs-debugging branch 
into next. It was failing with the VS generators. 

Today I added a hack to handle semicolons specially. It's not a very good or 
exact solution, but it seems to make the Preprocessor test pass again.

The problem is revealed because I changed GetCompileDefinitions to populate 
an out-vector instead of returning a string, which the VS generator used to 
use directly. The use of ExpandListArguments does not handle the 'escaped' 
semicolon. Should it be taught to?

Thanks,

Steve.