A simple set of CMAKE_C_FLAGS or CMAKE_CXX_FLAGS will set the value for the
current directory and below:
set(CMAKE_C_FLAGS"${CMAKE_C_FLAGS} -m32")
Any add_directory() commands after the above line will inherit the -m32
flag.
--
Glenn
On 5 June 2011 20:36, Richard Offer wrote:
>
> I have two distinct projects - A and B - each has its own subversion
> repository etc - they are quite independent.
>
> Project A is nw and needs to be built 32bit and itself comprises both
> in-house and third party code. The third party code is built using
> ExternalProject_Add()
>
>
> Project B is built 64bit - this is our current project so everyone is
> already building that.
>
> Both use Cmake :-)
>
>
> I'm at the stage where Project B needs access to Projects A's message
> definitions - so I thought the easiest way is to "embed it" via subversion.
>
>
> How can Project A recognize that its being built as a component of Project
> B ? ( I can then only build certain targets in Project A). Project A still
> needs to be able to do its normal build outside of Project B. I'm guessing
> this could be as simple as SET'ing a variable :-)
>
>
> However, while I only really need one part of Project A inside Project B,
> for the team's convenience I'd really like for them to be able to build
> the 32bit Project A components at the same time they are building all of
> Project B. (saves having to have multiple virtual environments running for
> every task)
>
>
> There doesn't seem to be an easy way to say "here are the FLAGS (-m32) for
> this directory and below". Or have I missed something?
>
> And how do I handle building the same EXTERNAL_PROJECT() multiple times
> with different flags - it complains that the source directory is already
> present. And then correctly reference the 32/64 versions of the libraries
> when adding LINK targets ?
>
>
> Thanks
>
>
> Richard.
>
>
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