[Rock-dev] "Nice" cmake changes in 2.8.9

[Matthias Goldhoorn]

I just discovered, that cmake in version 2.8.9rc1 not accept strings for 
the

FOO_FOUND variable in .cmake files.


Background:
if you are searching packaged via

find_package(SOME_PACKAGE)

cmake expects that SOME_PACKAGE_FOUND is set, in the past this could be 
an string, now it seems cmake only accepts true as the real value.
This caused cmake to abort because the package is not found (even the 
FindSOME_PACAKGE.cmake file was found).
I just fixed this on our tools/rtt package, but you might got have 
similar bugs in future so keep this in mind.

So if your FindFOO.cmake script dies something like this:

set(OROCOS-RTT_FOUND ${OROCOS-RTT_IMPORT_FILE})

you need to change it to (and pray that the contend is not used 
anyhow/anywhere):

set(OROCOS-RTT_FOUND true)


Matthias

-- 
  Dipl.-Inf. Matthias Goldhoorn
  Space and Underwater Robotic

  Universität Bremen
  FB 3 - Mathematik und Informatik
  AG Robotik
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  28359 Bremen, Germany

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