I have the following issue:
I am building an SDK. It includes an external project (specifically: GitHub - ouster-lidar/ouster-sdk: Cross-platform C++ and Python SDK for Ouster LiDAR sensors. Includes tools for visualization, data recording/replay, and sensor configuration · GitHub) It is included through:
include(FetchContent)
FetchContent_Declare(
ouster-sdk
GIT_REPOSITORY https://github.com/ouster-lidar/ouster-sdk.git
GIT_TAG v0.16.2a
EXCLUDE_FROM_ALL
)
FetchContent_MakeAvailable(ouster-sdk)
This works, it builds, it runs, …
Specifically it builds this external library as static and includes it into my own libraries.
But now I want to create the distribution package I need to send to my customers, and here things go wrong. What I need is a zip file or equivalent with only my own shared library, its headers and all the cmake code to get it into the customers project. That’s it, just the basics.
My packaging.cmake file:
include(CMakePackageConfigHelpers)
include(GNUInstallDirs)
# Install the 4 public library targets
install(TARGETS my libraries
EXPORT abcTargets
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
COMPONENT abc
)
# allow users to use abc:: namespace
install(EXPORT abcTargets
FILE abcTargets.cmake
NAMESPACE abc::
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/abc
COMPONENT abc
)
# Generate and install package version and config files
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/abcConfigVersion.cmake"
VERSION ${PROJECT_VERSION}
COMPATIBILITY SameMajorVersion
)
configure_package_config_file(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/abcConfig.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/abcConfig.cmake"
INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/abc
)
install(FILES
"${CMAKE_CURRENT_BINARY_DIR}/abcConfig.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/abcConfigVersion.cmake"
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/abc
COMPONENT abc
)
# CPack archive configuration
set(CPACK_PROJECT_NAME "abc")
set(CPACK_GENERATOR "TGZ")
set(CPACK_PACKAGE_NAME "abc")
set(CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "${PROJECT_DESCRIPTION}")
set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${PROJECT_VERSION}-${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR}")
set(CPACK_STRIP_FILES TRUE)
include(CPack)
And to be fully open, the main CMakeLists.txt is ordered as:
# project definition and project wide settings
# options
# including of third party libraries
Here I include the external library using FetchContent_Declare and FetchContent_MakeAvailable
# Defining my own targets
add_subdirectory(myLibrary)
# each library contains its own install rules for the header files
# packaging
See the other code block for the content of what happens here.
On windows, this creates the expected .zip file. But this zip file still includes all the headers and libraries, and cmake config files from the external library. I don’t want or need those, but I cannot get cpack to stop including them.
On linux, things are worse. It does not create my archive at all. instead, I get an archive called after the external package, with only the contents of the external dependencies. My own libraries are not even included.
Here is some commandline feedback from cpack on linux:
> cpack -G TGZ
CPack: Create package using TGZ
CPack: Install projects
CPack: - Install project: abc []
CPack: Create package
CPack: - package: install/ouster-sdk-Release-0.16.2-Linux-5.15.148-tegra-aarch64.tar.gz generated.
I have tried different things like components and no components, excluding the external library from the all target, setting CPACK_INSTALLED_DIRECTORIES to specific libraries, using claude, … but I cannot seem to make it work.
Can anybody explain to me how I need to setup things to get this to work properly?