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# ----------------------------------------------------------------------------
# Root CMake file for nanoflann
# ----------------------------------------------------------------------------
cmake_minimum_required(VERSION 3.1)
# Extract library version into "NANOFLANN_VERSION"
# -----------------------------------------------------
# Look for: "#define NANOFLANN_VERSION 0xABC"
file(READ "${CMAKE_CURRENT_SOURCE_DIR}/include/nanoflann.hpp" STR_HPP)
string(REGEX MATCHALL "NANOFLANN_VERSION.*0x[0-9,A-F]+" CMAKE_VERSION_LINE "${STR_HPP}")
string(REGEX MATCHALL "0x[0-9,A-F]+" NANOFLANN_VERSION_HEX "${CMAKE_VERSION_LINE}")
string(REGEX REPLACE "0x(.).*" "\\1" NANOFLANN_VERSION_MAJOR "${NANOFLANN_VERSION_HEX}" )
string(REGEX REPLACE "0x.(.).*" "\\1" NANOFLANN_VERSION_MINOR "${NANOFLANN_VERSION_HEX}" )
string(REGEX REPLACE "0x..(.).*" "\\1" NANOFLANN_VERSION_PATCH "${NANOFLANN_VERSION_HEX}" )
mark_as_advanced(STR_HPP CMAKE_VERSION_LINE NANOFLANN_VERSION_HEX NANOFLANN_VERSION_MAJOR NANOFLANN_VERSION_MINOR NANOFLANN_VERSION_PATCH)
project(nanoflann VERSION "${NANOFLANN_VERSION_MAJOR}.${NANOFLANN_VERSION_MINOR}.${NANOFLANN_VERSION_PATCH}")
message(STATUS "nanoflann version: ${NANOFLANN_VERSION_MAJOR}.${NANOFLANN_VERSION_MINOR}.${NANOFLANN_VERSION_PATCH}")
file(WRITE "${nanoflann_BINARY_DIR}/version" "${NANOFLANN_VERSION_MAJOR}.${NANOFLANN_VERSION_MINOR}.${NANOFLANN_VERSION_PATCH}")
# Compiler options:
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# Enable a high level of warnings.
if (CMAKE_COMPILER_IS_GNUCXX)
# The -Wno-long-long is required in 64bit systems when including sytem headers.
# The -Wno-variadic-macros was needed for Eigen3, StdVector.h
add_compile_options(-Wall -Wno-long-long -Wno-variadic-macros -O2 -mtune=native)
# Workaround: Eigen <3.4 produces *tons* of warnings in GCC >=6. See http://eigen.tuxfamily.org/bz/show_bug.cgi?id=1221
if (NOT ${CMAKE_CXX_COMPILER_VERSION} LESS "6.0")
add_compile_options(-Wno-ignored-attributes -Wno-int-in-bool-context)
endif()
endif()
if(MSVC)
add_definitions( "/W3 /D_CRT_SECURE_NO_WARNINGS /nologo" )
endif()
# Solution Folder options:
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
set_property(GLOBAL PROPERTY PREDEFINED_TARGETS_FOLDER "CMakeTargets")
set( EXECUTABLE_OUTPUT_PATH ${nanoflann_BINARY_DIR}/bin CACHE PATH "Output directory for programs" )
add_definitions ( -DNANOFLANN_PATH="${CMAKE_SOURCE_DIR}" )
# Set relative install directories
set(INSTALL_INCLUDE_DIR "include")
set(INSTALL_PKGCONFIG_DIR "lib${LIB_SUFFIX}/pkgconfig")
set(INSTALL_CMAKE_DIR "lib${LIB_SUFFIX}/cmake/nanoflann")
set(INSTALL_COPYRIGHT_DIR "share/doc/libnanoflann-dev")
# Define nanoflann lib (header-only)
add_library(nanoflann INTERFACE)
target_include_directories(nanoflann
INTERFACE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:${INSTALL_INCLUDE_DIR}>)
install(TARGETS nanoflann
EXPORT nanoflannTargets)
add_library(nanoflann::nanoflann ALIAS nanoflann)
# Examples
option(BUILD_EXAMPLES "Build examples" ON)
if(BUILD_EXAMPLES)
add_subdirectory(examples)
endif()
# Benchmarks
option(BUILD_BENCHMARKS "Build benchmarks" OFF)
if(BUILD_BENCHMARKS)
# 3rdparty Libraries
include(3rdparty/CMakeLists-flann.txt)
include(3rdparty/CMakeLists-fastann.txt)
include(3rdparty/CMakeLists-libkdtree.txt)
add_subdirectory(benchmarkTool)
endif()
# Tests
option(BUILD_TESTS "Build unit tests" ON)
if(BUILD_TESTS)
enable_testing()
add_subdirectory(tests)
endif()
# --------------------------------------------------------------------
# Install/uninstall targets
# --------------------------------------------------------------------
#--------------------------------------------------------------
# If we are building the final step of the Debian package,
# save each library files in the corresponding directories:
#--------------------------------------------------------------
if(CMAKE_USE_DEB_POSTFIXS)
# Values when building a Debian package ---------------
message(STATUS "** Using Debian post-fix for install directories **")
set(libnanoflann_dev_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}/libnanoflann-dev/usr/")
set(nanoflann_pkgconfig_INSTALL_PREFIX "/usr") # Values when building a Debian package
ELSE()
# Values under normal conditions -----------------------
set(libnanoflann_dev_INSTALL_PREFIX "")
set(nanoflann_pkgconfig_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}") # Values under normal conditions
endif()
# Generate the pkg-config file:
configure_file(
"${nanoflann_SOURCE_DIR}/scripts/nanoflann.pc.in"
"${nanoflann_BINARY_DIR}/nanoflann.pc" @ONLY IMMEDIATE )
# Generate the cmake config and cmake config-version file:
include(CMakePackageConfigHelpers)
configure_package_config_file(
"${nanoflann_SOURCE_DIR}/scripts/nanoflannConfig.cmake.in"
"${nanoflann_BINARY_DIR}/nanoflannConfig.cmake"
INSTALL_DESTINATION ${INSTALL_CMAKE_DIR}
PATH_VARS INSTALL_INCLUDE_DIR)
write_basic_package_version_file(
"${nanoflann_BINARY_DIR}/nanoflannConfigVersion.cmake"
VERSION ${nanoflann_VERSION}
COMPATIBILITY AnyNewerVersion)
# Uninstall target, for "make uninstall"
configure_file(
"${nanoflann_SOURCE_DIR}/scripts/cmake_uninstall.cmake.in"
"${nanoflann_BINARY_DIR}/cmake_uninstall.cmake"
@ONLY IMMEDIATE)
add_custom_target(uninstall
"${CMAKE_COMMAND}" -P "${nanoflann_BINARY_DIR}/cmake_uninstall.cmake")
export(EXPORT nanoflannTargets
NAMESPACE nanoflann::
FILE "${nanoflann_BINARY_DIR}/nanoflannTargets.cmake")
export(PACKAGE nanoflann)
install(EXPORT nanoflannTargets
NAMESPACE nanoflann::
DESTINATION "${libnanoflann_dev_INSTALL_PREFIX}${INSTALL_CMAKE_DIR}")
install(
FILES "${nanoflann_BINARY_DIR}/nanoflann.pc"
DESTINATION "${libnanoflann_dev_INSTALL_PREFIX}${INSTALL_PKGCONFIG_DIR}" )
install(
FILES "${nanoflann_BINARY_DIR}/nanoflannConfig.cmake"
"${nanoflann_BINARY_DIR}/nanoflannConfigVersion.cmake"
DESTINATION "${libnanoflann_dev_INSTALL_PREFIX}${INSTALL_CMAKE_DIR}" )
install(
FILES "${nanoflann_SOURCE_DIR}/include/nanoflann.hpp"
DESTINATION "${libnanoflann_dev_INSTALL_PREFIX}${INSTALL_INCLUDE_DIR}" )
if(CMAKE_USE_DEB_POSTFIXS)
install(
FILES "${nanoflann_SOURCE_DIR}/copyright"
DESTINATION "${libnanoflann_dev_INSTALL_PREFIX}${INSTALL_COPYRIGHT_DIR}" )
endif()