According to https://cmake.org/cmake/help/v3.0/module/FindBoost.htmlBoost_INCLUDE_DIR is only a cache variable, while Boost_INCLUDE_DIRS should be used. Some recent version of cmake seems to have broken the build when the cache variables are used in CMakeLists.txt.
According to https://cmake.org/cmake/help/v3.0/module/FindBoost.html
Boost_INCLUDE_DIR
is only a cache variable, whileBoost_INCLUDE_DIRS
should be used. Some recent version of cmake seems to have broken the build when the cache variables are used in CMakeLists.txt.Reported by MrHighVoltage via https://aur.archlinux.org/packages/openems-git/