YCMEPHelper: If CMAKE_EXPORT_COMPILE_COMMANDS is defined and ON, pass it to all subprojects #442
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Fix part of robotology/robotology-superbuild#1596 . As discussed in robotology/robotology-superbuild#1596 one could use the
CMAKE_EXPORT_COMPILE_COMMANDSenvironment variable, but this has the downside that is considered only if the build is created from zero, and it has no effects on existing builds.