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Cmake package config helpers #128

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merged 4 commits into from
Jan 31, 2024
Merged

Cmake package config helpers #128

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626621f
Use CMakePackageConfigHelpers to generate config files. Fill libnabo_…
boxanm Nov 24, 2023
5119df9
Update README.md with cmake guide
boxanm Nov 24, 2023
af4470f
Update README.md
boxanm Nov 28, 2023
98e9eeb
Merge branch 'develop' into cmake_package_config_helpers
boxanm Jan 31, 2024
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32 changes: 18 additions & 14 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
cmake_minimum_required(VERSION 3.8)

include(CMakePackageConfigHelpers)

if (NOT CMAKE_VERSION VERSION_LESS "3.1")
cmake_policy(SET CMP0054 NEW)
endif ()
Expand Down Expand Up @@ -84,6 +86,8 @@ else ()
set (CMAKE_CXX_STANDARD 11)
endif ()

#======================== External Dependencies ===============================

include(GNUInstallDirs)

# eigen 2 or 3
Expand Down Expand Up @@ -243,35 +247,35 @@ export(


# Create variable with the library location
set(libnabo_library $<TARGET_FILE:${LIB_NAME}>)
set(libnabo_library $<TARGET_FILE:${PROJECT_NAME}::${LIB_NAME}>)

# Create variable for the local build tree
get_property(libnabo_include_dirs DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY INCLUDE_DIRECTORIES)
# Configure & generate config file for local build tree
configure_file(libnaboConfig.cmake.in
"${PROJECT_BINARY_DIR}/libnaboConfig.cmake.conf" @ONLY)
file(GENERATE
OUTPUT "${PROJECT_BINARY_DIR}/libnaboConfig.cmake"
INPUT "${PROJECT_BINARY_DIR}/libnaboConfig.cmake.conf")
configure_package_config_file(libnaboConfig.cmake.in
"${PROJECT_BINARY_DIR}/libnaboConfig.cmake"
INSTALL_DESTINATION share/libnabo/cmake
PATH_VARS PROJECT_NAME
)

# 2- installation build #

# Change the library location for an install location
set(libnabo_library ${CMAKE_INSTALL_PREFIX}/lib/$<TARGET_FILE_NAME:${LIB_NAME}>)
set(libnabo_library $<TARGET_FILE:${PROJECT_NAME}::${LIB_NAME}>)

# Change the include location for the case of an install location
set(libnabo_include_dirs ${CMAKE_INSTALL_PREFIX}/include)

# We put the generated file for installation in a different repository (i.e., ./CMakeFiles/)
configure_file(libnaboConfig.cmake.in
"${PROJECT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/libnaboConfig.cmake.conf" @ONLY)
file(GENERATE
OUTPUT "${PROJECT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/libnaboConfig.cmake"
INPUT "${PROJECT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/libnaboConfig.cmake.conf")
configure_package_config_file(libnaboConfig.cmake.in
"${PROJECT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/libnaboConfig.cmake"
INSTALL_DESTINATION share/libnabo/cmake
PATH_VARS PROJECT_NAME
)

# The same versioning file can be used for both cases
configure_file(libnaboConfigVersion.cmake.in
"${PROJECT_BINARY_DIR}/libnaboConfigVersion.cmake" @ONLY)
write_basic_package_version_file(libnaboConfigVersion.cmake
COMPATIBILITY AnyNewerVersion)

install(FILES
"${PROJECT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/libnaboConfig.cmake"
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8 changes: 8 additions & 0 deletions README.md
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Expand Up @@ -174,6 +174,14 @@ libnabo provides the following compilation options, available through [CMake]:
You can specify them with a command-line tool, `ccmake`, or with a graphical tool, `cmake-gui`.
Please read the [CMake documentation] for more information.

Add libnabo to your CMake project
---------------------------------------------
```cmake
find_package(libnabo REQUIRED)
target_link_libraries(example PUBLIC ${libnabo_LIBRARIES})
target_include_directories(example PUBLIC ${libnabo_INCLUDE_DIRS})
```

Quick compilation and installation under Unix
---------------------------------------------

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10 changes: 10 additions & 0 deletions libnaboConfig.cmake.in
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Original file line number Diff line number Diff line change
@@ -1,6 +1,16 @@
# - Config file for the libnabo package
# It defines the following variables
# libnabo_INCLUDE_DIRS - include directories for libnabo
# libnabo_LIBRARIES - libraries to link against
@PACKAGE_INIT@

include(${CMAKE_CURRENT_LIST_DIR}/libnabo-targets.cmake)

# This causes catkin_simple to link against these libraries
set(libnabo_FOUND_CATKIN_PROJECT true)

# Compute paths
set(libnabo_INCLUDE_DIRS "@CONF_INCLUDE_DIRS@")
set(libnabo_LIBRARIES "@libnabo_library@")

check_required_components("@PROJECT_NAME@")
11 changes: 0 additions & 11 deletions libnaboConfigVersion.cmake.in
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This file was deleted.

1 change: 1 addition & 0 deletions package.xml
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Expand Up @@ -15,6 +15,7 @@
<buildtool_depend>cmake</buildtool_depend>
<build_depend>eigen</build_depend>
<build_depend>boost</build_depend>

<exec_depend>eigen</exec_depend>
<exec_depend>boost</exec_depend>
<exec_depend condition="$ROS_VERSION == 1">catkin</exec_depend>
Expand Down