[CMake] Question about managing large projects with CMake

[Theodore Omtzigt]

Dear CMake gurus:

 

  First of all, thank you for creating CMake. After struggling with cross
platform builds for a decade, CMake has solved all my essential requirements
for cross platform Windows/Linux software development.

 

On to the questions: I have a large and diverse software/hardware tree to
manage (>75 projects of one form or another). I started porting this tree to
CMake from the top down and bringing in one project at a time. The problem I
am now having is that for the Windows .NET IDE side, the .NET solution
becomes hard to comprehend due to its size. Except for a small handful, many
of these projects use only small subsets of the software components in the
tree. The majority of the time these projects can move along without knowing
or interacting much with other projects that do not share their sw
components. So the first question is if there is a way to siphon off a
subset of the build? Given the fact that the build process is defined in a
hierarchy of fixed-name CMakeLists.txt files, I am confused how to 'overlay'
separate build processes to simplify the usage of more isolated projects.

 

The second question is adjoined: How do I get the test suites to not show up
in the IDE solution but still be run during the RUN_TESTS build? In our
case, all sw components have a test suite associated with them. Right now,
these tests end up as separate projects in the build, and are seriously
cluttering up the solution. Reading the CTest chapter in the book, it states
that building the test programs separately from the main build, it should
become more scalable. It is clear that I am missing something since
excluding them from the build process would imply that there is a secondary
handle of some sort to trigger the testing which is the same problem I am
having as indicated by the first question. 

 

Can anyone enlighten me? I am using cmake 2.6 patch 6 and 7.

 

Theo

Stillwater Supercomputing, Inc.

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