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CMakeLists: Use GNUInstallDirs to set install location

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CMake's GNUInstallDirs knows where particular Linux architectures and
distributions want to have their libraries installed. In particular,
Debian-derived "multi-arch" distributions keep their libraries in triplet
sudirectories under /lib. Other "bi-arch" distributions keep 64-bit
libraries in /lib64.

Including GNUInstallDirs and using CMAKE_INSTALL_LIBDIR and
CMAKE_INSTALL_INCLUDEDIR means that fmt's libraries and header files are
installed in the correct locations.

Tested with OpenEmbedded and on Debian GNU/Linux 9 (the special naming only
applies when installing in /usr.)
This commit is contained in:
Mike Crowe 2017-11-13 14:47:14 +00:00 committed by Victor Zverovich
parent 493586cbca
commit 62df6f27cb
1 changed files with 7 additions and 3 deletions
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10
fmt/CMakeLists.txt
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@ -49,8 +49,9 @@ endif ()
# Install targets.
if (FMT_INSTALL)
include(GNUInstallDirs)
include(CMakePackageConfigHelpers)
set(FMT_CMAKE_DIR lib/cmake/fmt CACHE STRING
set(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
"Installation directory for cmake files, relative to ${CMAKE_INSTALL_PREFIX}.")
set(version_config ${PROJECT_BINARY_DIR}/fmt-config-version.cmake)
set(project_config ${PROJECT_BINARY_DIR}/fmt-config.cmake)
@ -61,9 +62,12 @@ if (FMT_INSTALL)
set(INSTALL_TARGETS ${INSTALL_TARGETS} fmt-header-only)
endif ()
set(FMT_LIB_DIR lib CACHE STRING
set(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
"Installation directory for libraries, relative to ${CMAKE_INSTALL_PREFIX}.")
set(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR}/fmt CACHE STRING
"Installation directory for include files, relative to ${CMAKE_INSTALL_PREFIX}.")
# Generate the version, config and target files into the build directory.
write_basic_package_version_file(
${version_config}
@ -86,5 +90,5 @@ if (FMT_INSTALL)
# Install the library and headers.
install(TARGETS ${INSTALL_TARGETS} EXPORT ${targets_export_name}
DESTINATION ${FMT_LIB_DIR})
install(FILES ${FMT_HEADERS} DESTINATION include/fmt)
install(FILES ${FMT_HEADERS} DESTINATION ${FMT_INC_DIR})
endif ()