build: Fix installation paths
It is not generally true that `CMAKE_INSTALL_<dir>` variables are relative paths: https://github.com/jtojnar/cmake-snips#concatenating-paths-when-building-pkg-config-files
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@ -81,6 +81,7 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
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include(cxx14)
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include(CheckCXXCompilerFlag)
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include(JoinPaths)
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list(FIND CMAKE_CXX_COMPILE_FEATURES "cxx_variadic_templates" index)
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if (${index} GREATER -1)
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@ -239,8 +240,8 @@ if (FMT_INSTALL)
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include(GNUInstallDirs)
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include(CMakePackageConfigHelpers)
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set_verbose(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
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"Installation directory for cmake files, relative to "
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"${CMAKE_INSTALL_PREFIX}.")
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"Installation directory for cmake files, a relative path "
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"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
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set(version_config ${PROJECT_BINARY_DIR}/fmt-config-version.cmake)
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set(project_config ${PROJECT_BINARY_DIR}/fmt-config.cmake)
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set(pkgconfig ${PROJECT_BINARY_DIR}/fmt.pc)
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@ -252,22 +253,26 @@ if (FMT_INSTALL)
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endif ()
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set_verbose(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
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"Installation directory for libraries, relative to "
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"${CMAKE_INSTALL_PREFIX}.")
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"Installation directory for libraries, a relative path "
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"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
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set_verbose(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR}/fmt CACHE STRING
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"Installation directory for include files, relative to "
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"${CMAKE_INSTALL_PREFIX}.")
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"Installation directory for include files, a relative path "
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"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
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set_verbose(FMT_PKGCONFIG_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig CACHE PATH
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"Installation directory for pkgconfig (.pc) files, relative to "
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"${CMAKE_INSTALL_PREFIX}.")
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"Installation directory for pkgconfig (.pc) files, a relative path "
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"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
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# Generate the version, config and target files into the build directory.
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write_basic_package_version_file(
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${version_config}
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VERSION ${FMT_VERSION}
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COMPATIBILITY AnyNewerVersion)
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join_paths(libdir_for_pc_file "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")
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join_paths(includedir_for_pc_file "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
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configure_file(
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"${PROJECT_SOURCE_DIR}/support/cmake/fmt.pc.in"
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"${pkgconfig}"
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26
support/cmake/JoinPaths.cmake
Normal file
26
support/cmake/JoinPaths.cmake
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@ -0,0 +1,26 @@
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# This module provides function for joining paths
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# known from from most languages
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#
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# Original license:
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# SPDX-License-Identifier: (MIT OR CC0-1.0)
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# Explicit permission given to distribute this module under
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# the terms of the project as described in /LICENSE.rst.
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# Copyright 2020 Jan Tojnar
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# https://github.com/jtojnar/cmake-snips
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#
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# Modelled after Python’s os.path.join
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# https://docs.python.org/3.7/library/os.path.html#os.path.join
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# Windows not supported
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function(join_paths joined_path first_path_segment)
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set(temp_path "${first_path_segment}")
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foreach(current_segment IN LISTS ARGN)
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if(NOT ("${current_segment}" STREQUAL ""))
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if(IS_ABSOLUTE "${current_segment}")
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set(temp_path "${current_segment}")
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else()
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set(temp_path "${temp_path}/${current_segment}")
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endif()
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endif()
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endforeach()
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set(${joined_path} "${temp_path}" PARENT_SCOPE)
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endfunction()
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@ -1,7 +1,7 @@
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prefix=@CMAKE_INSTALL_PREFIX@
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exec_prefix=@CMAKE_INSTALL_PREFIX@
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libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
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includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
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libdir=@libdir_for_pc_file@
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includedir=@includedir_for_pc_file@
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Name: fmt
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Description: A modern formatting library
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