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Allow for CMAKE_INSTALL_CMAKEDIR to be absolute (#10090)

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Package repositories such as NixOS will pass
an absolute paths to CMAKE.

- Also clarify installation of cmake configuration
files between the build and install directories.
This commit is contained in:
Jonathan Ringer 2022-06-22 10:43:13 -07:00 committed by GitHub
parent 3f0f59b00e
commit 046bde0017
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 10 deletions
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28
cmake/install.cmake
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@ -102,47 +102,55 @@ foreach(_file ${nobase_dist_proto_DATA})
endforeach()
# Install configuration
set(_cmakedir_desc "Directory relative to CMAKE_INSTALL to install the cmake configuration files")
set(_install_cmakedir_desc "Directory relative to CMAKE_INSTALL to install the cmake configuration files")
set(_build_cmakedir_desc "Directory relative to CMAKE_CURRENT_BINARY_DIR for cmake configuration files")
set(_exampledir_desc "Directory relative to CMAKE_INSTALL_DATA to install examples")
set(_protobuf_subdir_desc "Subdirectory in which to install cmake configuration files")
if(NOT MSVC)
set(CMAKE_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/protobuf" CACHE STRING "${_cmakedir_desc}")
set(protobuf_CMAKE_SUBDIR "cmake/protobuf" CACHE STRING "${_protobuf_subdir_desc}")
set(CMAKE_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/${protobuf_CMAKE_SUBDIR}" CACHE STRING "${_install_cmakedir_desc}")
set(CMAKE_INSTALL_EXAMPLEDIR "${CMAKE_INSTALL_DATADIR}/protobuf/examples" CACHE STRING "${_exampledir_desc}")
else()
set(protobuf_CMAKE_SUBDIR "cmake" CACHE STRING "${_protobuf_subdir_desc}")
set(CMAKE_INSTALL_CMAKEDIR "cmake" CACHE STRING "${_cmakedir_desc}")
set(CMAKE_INSTALL_EXAMPLEDIR "examples" CACHE STRING "${_exampledir_desc}")
endif()
set(CMAKE_BUILD_CMAKEDIR "${CMAKE_CURRENT_BINARY_DIR}/${protobuf_CMAKE_SUBDIR}" CACHE STRING "${_build_cmakedir_desc}")
mark_as_advanced(protobuf_CMAKE_SUBDIR)
mark_as_advanced(CMAKE_BUILD_CMAKEDIR)
mark_as_advanced(CMAKE_INSTALL_CMAKEDIR)
mark_as_advanced(CMAKE_INSTALL_EXAMPLEDIR)
configure_file(${protobuf_SOURCE_DIR}/cmake/protobuf-config.cmake.in
${CMAKE_INSTALL_CMAKEDIR}/protobuf-config.cmake @ONLY)
${CMAKE_BUILD_CMAKEDIR}/protobuf-config.cmake @ONLY)
configure_file(${protobuf_SOURCE_DIR}/cmake/protobuf-config-version.cmake.in
${CMAKE_INSTALL_CMAKEDIR}/protobuf-config-version.cmake @ONLY)
${CMAKE_BUILD_CMAKEDIR}/protobuf-config-version.cmake @ONLY)
configure_file(${protobuf_SOURCE_DIR}/cmake/protobuf-module.cmake.in
${CMAKE_INSTALL_CMAKEDIR}/protobuf-module.cmake @ONLY)
${CMAKE_BUILD_CMAKEDIR}/protobuf-module.cmake @ONLY)
configure_file(${protobuf_SOURCE_DIR}/cmake/protobuf-options.cmake
${CMAKE_INSTALL_CMAKEDIR}/protobuf-options.cmake @ONLY)
${CMAKE_BUILD_CMAKEDIR}/protobuf-options.cmake @ONLY)
# Allows the build directory to be used as a find directory.
if (protobuf_BUILD_PROTOC_BINARIES)
export(TARGETS libprotobuf-lite libprotobuf libprotoc protoc
NAMESPACE protobuf::
FILE ${CMAKE_INSTALL_CMAKEDIR}/protobuf-targets.cmake
FILE ${CMAKE_BUILD_CMAKEDIR}/protobuf-targets.cmake
)
else (protobuf_BUILD_PROTOC_BINARIES)
export(TARGETS libprotobuf-lite libprotobuf
NAMESPACE protobuf::
FILE ${CMAKE_INSTALL_CMAKEDIR}/protobuf-targets.cmake
FILE ${CMAKE_BUILD_CMAKEDIR}/protobuf-targets.cmake
)
endif (protobuf_BUILD_PROTOC_BINARIES)
install(EXPORT protobuf-targets
DESTINATION "${CMAKE_INSTALL_CMAKEDIR}"
NAMESPACE protobuf::
COMPONENT protobuf-export)
COMPONENT protobuf-export
)
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_INSTALL_CMAKEDIR}/
install(DIRECTORY ${CMAKE_BUILD_CMAKEDIR}/
DESTINATION "${CMAKE_INSTALL_CMAKEDIR}"
COMPONENT protobuf-export
PATTERN protobuf-targets.cmake EXCLUDE