I need to add various flags to my C and C++ compile lines in my CMake files (CMake 2.8.10.2). I see some people use add_definitions but from what I can see that is intended for preprocessor flags (-D). I have some flags that I don't want passed to the preprocessor.
So I've been trying to modify CMAKE_C_FLAGS and CMAKE_CXX_FLAGS. I see that some people were using something like:
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -new -flags -here")
but then I read in the cmake docs that this is less efficient, and the right way to do it is to use list(APPEND ...), like this:
list(APPEND CMAKE_C_FLAGS -new -flags -here)
However, when I do this my compile line contains the flags separated by semicolons and is a syntax error. I read that this is now lists are stored internally, but I figured this would be taken care of by cmake when I used the variable. This seems so basic; am I doing something wrong? I mean, what the heck good are these lists if they can't be used unless you happen to want a semicolon-separated list of values (and who wants that, other than I guess Windows %PATH% settings or something)? Should I be using the quoted version even though the docs suggest it's less efficient/appropriate?