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###############################################################################
# Find FLANN
#
# This sets the following variables:
# FLANN_FOUND - True if FLANN was found.
# FLANN_INCLUDE_DIRS - Directories containing the FLANN include files.
# FLANN_LIBRARIES - Libraries needed to use FLANN.
# FLANN_DEFINITIONS - Compiler flags for FLANN.
# If FLANN_USE_STATIC is specified and then look for static libraries ONLY else
# look for shared ones
if(FLANN_USE_STATIC)
set(FLANN_RELEASE_NAME flann_cpp_s)
set(FLANN_DEBUG_NAME flann_cpp_s-gd)
else(FLANN_USE_STATIC)
set(FLANN_RELEASE_NAME flann_cpp)
set(FLANN_DEBUG_NAME flann_cpp-gd)
endif(FLANN_USE_STATIC)
find_package(PkgConfig)
if (FLANN_FIND_VERSION)
pkg_check_modules(PC_FLANN flann>=${FLANN_FIND_VERSION})
else(FLANN_FIND_VERSION)
pkg_check_modules(PC_FLANN flann)
endif(FLANN_FIND_VERSION)
set(FLANN_DEFINITIONS ${PC_FLANN_CFLAGS_OTHER})
find_path(FLANN_INCLUDE_DIR flann/flann.hpp
HINTS ${PC_FLANN_INCLUDEDIR} ${PC_FLANN_INCLUDE_DIRS} "${FLANN_ROOT}" "$ENV{FLANN_ROOT}"
PATHS "$ENV{PROGRAMFILES}/Flann" "$ENV{PROGRAMW6432}/Flann"
PATH_SUFFIXES include)
find_library(FLANN_LIBRARY
NAMES ${FLANN_RELEASE_NAME}
HINTS ${PC_FLANN_LIBDIR} ${PC_FLANN_LIBRARY_DIRS} "${FLANN_ROOT}" "$ENV{FLANN_ROOT}"
PATHS "$ENV{PROGRAMFILES}/Flann" "$ENV{PROGRAMW6432}/Flann"
PATH_SUFFIXES lib)
find_library(FLANN_LIBRARY_DEBUG
NAMES ${FLANN_DEBUG_NAME} ${FLANN_RELEASE_NAME}
HINTS ${PC_FLANN_LIBDIR} ${PC_FLANN_LIBRARY_DIRS} "${FLANN_ROOT}" "$ENV{FLANN_ROOT}"
PATHS "$ENV{PROGRAMFILES}/Flann" "$ENV{PROGRAMW6432}/Flann"
PATH_SUFFIXES lib)
if(NOT FLANN_LIBRARY_DEBUG)
set(FLANN_LIBRARY_DEBUG ${FLANN_LIBRARY})
endif(NOT FLANN_LIBRARY_DEBUG)
set(FLANN_INCLUDE_DIRS ${FLANN_INCLUDE_DIR})
set(FLANN_LIBRARIES optimized ${FLANN_LIBRARY} debug ${FLANN_LIBRARY_DEBUG})
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(FLANN DEFAULT_MSG FLANN_LIBRARY FLANN_INCLUDE_DIR)
mark_as_advanced(FLANN_LIBRARY FLANN_LIBRARY_DEBUG FLANN_INCLUDE_DIR)
if(FLANN_FOUND)
message(STATUS "FLANN found (include: ${FLANN_INCLUDE_DIRS}, lib: ${FLANN_LIBRARIES})")
if(FLANN_USE_STATIC)
add_definitions(-DFLANN_STATIC)
endif(FLANN_USE_STATIC)
endif(FLANN_FOUND)
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