[cmake-developers] CMAKE_C_COMPILER_ARG# not documented?

[Robert Dailey]

On Thu, Jul 19, 2018 at 1:07 PM, Brad King <brad.king at kitware.com> wrote:
> On 07/19/2018 11:58 AM, Robert Dailey wrote:
>> I can't remember where I heard about these CMake variables, but in one
>> of my toolchain files I do this:
>>
>> set( CMAKE_C_COMPILER_ARG1 -m32 )
>> set( CMAKE_CXX_COMPILER_ARG1 -m32 )
>
> They are not documented because they are internal implementation
> details.  Projects should not be setting them.

I think this was recommended to me because `-m32` had to be the first
argument to clang. I'll try to dig up the conversation, I forgot who
recommended it and why.