icub-main dependency

[diegoferigo]

If I'm not mistaken this repo does not depend on icub-main. At the current moment, if icub-main is not installed, the build process of the devel branch fails with the following error:

-- The C compiler identification is GNU 5.4.0
-- The CXX compiler identification is GNU 5.4.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done

CMake Error at src/positionControl-accuracy-ExternalPid/CMakeLists.txt:12 (find_package):
  By not providing "FindICUB.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "ICUB", but
  CMake did not find one.

  Could not find a package configuration file provided by "ICUB" with any of
  the following names:

    ICUBConfig.cmake
    icub-config.cmake

  Add the installation prefix of "ICUB" to CMAKE_PREFIX_PATH or set
  "ICUB_DIR" to a directory containing one of the above files.  If "ICUB"
  provides a separate development package or SDK, be sure it has been
  installed.

This behavior is due to one of the latest tests added, and particularly this line:

icub-tests/src/positionControl-accuracy-ExternalPid/CMakeLists.txt

Line 12 in 5dda0be

find_package(ICUB REQUIRED)

cc @randaz81

---

Actually, also this line is involved:

icub-tests/src/models-consistency/CMakeLists.txt

Line 14 in 5f29fb5

find_package(ICUB REQUIRED)

It was a while I was not updating the setup which includes icub-tests, and last summer I had no icub-main there.

cc @Nicogene