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From "Alex Clemmer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MESOS-3396) Fully separate out libprocess and Stout CMake build system from the Mesos build system
Date Tue, 17 Jan 2017 18:18:26 GMT

     [ https://issues.apache.org/jira/browse/MESOS-3396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alex Clemmer updated MESOS-3396:
--------------------------------
    Description: 
The official goal is to be able to put libprocess and stout into a call to `ExternalProject_Add`,
rather than having them built in-tree as they are now. Since Libprocess and Stout depend on
a few variables being defined by the project that is building against it (such as, e.g., the
`LINUX` variable) this will involve, at minimum, figuring out which `-D` flags have to be
passed through the `ExternalProject_Add` call.

NOTE: This goal may not be feasible. We will need to trigger a rebuild of many source files
if we change a header in Libprocess or Stout, and a relink if we change a .cpp file in the
source files of Libprocess. This might require a fair bit of effort.

Another complication is that `StoutConfigure` manages the dependencies of Stout, and Stout
is built through `ExternalProject_Add`, we will need to make sure this is managed in roughly
the same way it is now.

  was:
This may or may not be elegant or helpful, as it means copying a lot of variables out and
around. A good example is that the `LINUX` flag is defined in MesosConfigure right now, but
it's used throughout the project. So, if you wanted to separate that out you'd have to define
it independently for both codebases.

The same goes for the third-party directory structure.


> Fully separate out libprocess and Stout CMake build system from the Mesos build system
> --------------------------------------------------------------------------------------
>
>                 Key: MESOS-3396
>                 URL: https://issues.apache.org/jira/browse/MESOS-3396
>             Project: Mesos
>          Issue Type: Task
>          Components: cmake
>            Reporter: Alex Clemmer
>            Assignee: Alex Clemmer
>              Labels: cmake, mesosphere, microsoft, windows-mvp
>
> The official goal is to be able to put libprocess and stout into a call to `ExternalProject_Add`,
rather than having them built in-tree as they are now. Since Libprocess and Stout depend on
a few variables being defined by the project that is building against it (such as, e.g., the
`LINUX` variable) this will involve, at minimum, figuring out which `-D` flags have to be
passed through the `ExternalProject_Add` call.
> NOTE: This goal may not be feasible. We will need to trigger a rebuild of many source
files if we change a header in Libprocess or Stout, and a relink if we change a .cpp file
in the source files of Libprocess. This might require a fair bit of effort.
> Another complication is that `StoutConfigure` manages the dependencies of Stout, and
Stout is built through `ExternalProject_Add`, we will need to make sure this is managed in
roughly the same way it is now.



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