[CMake] ExternalProject_Add + find_package

[Alvaro Denis]

Hello,
I am using cmake(I am a novice) for a big project, this contain multiple
independent projects(no use add_subdirectory), so take an example:
Project A depend of B, when  I run cmake for A this check for B with
find_package(), if this fail the user is notified and need install
B, I think that manage this automatically is desirable, I propose
ExternalProject_Add, so this download, configure, build and install the
dependence automatically but my problem is:
When I execute cmake for A this say that B not found, so find this
and install, but then the "first" make fail because the first time the
"imported targets"
are empty, so I need rerun cmake, this time find_package()
fill the "imported targets" and build ok.
How I can avoid this(execute cmake ; make ; cmake ; make).
Thanks a lot.

-- 

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ALvaro Denis Acosta
[image: http://]about.me/denisacostaq
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