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FIND_PATH(
# filled variable
NANOFLANN_INCLUDE_DIR
# what I am looking for?
nanoflann.hpp
# where should I look?
$ENV{NANOFLANN_DIR}
${CMAKE_SOURCE_DIR}/include)
IF(NANOFLANN_INCLUDE_DIR)
SET(NANOFLANN_FOUND TRUE)
else()
SET(NANOFLANN_FOUND FALSE)
ENDIF()
IF(NANOFLANN_FOUND)
IF(NOT CMAKE_FIND_QUIETLY)
MESSAGE(STATUS "Found NanoFlann: ${NANOFLANN_INCLUDE_DIR}")
ENDIF()
ELSE()
IF(NANOFLANN_FOUND_REQUIRED)
MESSAGE(FATAL_ERROR "Could not find NanoFlann")
ENDIF()
ENDIF()
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