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Support custom FMT_INC_DIR in pkgconfig and cmake configs (#1702)

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* Support custom FMT_INC_DIR in pkgconfig and cmake configs

When CMAKE_INSTALL_INCLUDEDIR or FMT_INC_DIR override the header
installation directory, they should be used instead of
${CMAKE_INSTALL_PREFIX}/include in fmt-targets.cmake and fmt.pc.

* Put headers into FMT_INC_DIR/fmt rather than directly into FMT_INC_DIR

This makes FMT_INC_DIR an alias for CMAKE_INSTALL_INCLUDEDIR and
simplifies generation of pkgconfig and cmake configs.

* Do not split target_include_directories
This commit is contained in:
Orivej Desh 2020-05-28 15:17:34 +00:00 committed by GitHub
parent 51bf9cfacb
commit f5fa1dee54
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 15 deletions
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27
CMakeLists.txt
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@ -44,6 +44,11 @@ if (MASTER_PROJECT AND NOT CMAKE_BUILD_TYPE)
"CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
endif ()
include(GNUInstallDirs)
set_verbose(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR} CACHE STRING
"Installation directory for include files, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
option(FMT_PEDANTIC "Enable extra warnings and expensive tests." OFF)
option(FMT_WERROR "Halt the compilation with an error on compiler warnings."
OFF)
@ -198,7 +203,7 @@ target_compile_features(fmt INTERFACE ${FMT_REQUIRED_FEATURES})
target_include_directories(fmt PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>)
$<INSTALL_INTERFACE:${FMT_INC_DIR}>)
set(FMT_DEBUG_POSTFIX d CACHE STRING "Debug library postfix.")
@ -233,11 +238,10 @@ target_compile_features(fmt-header-only INTERFACE ${FMT_REQUIRED_FEATURES})
target_include_directories(fmt-header-only INTERFACE
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>)
$<INSTALL_INTERFACE:${FMT_INC_DIR}>)
# Install targets.
if (FMT_INSTALL)
include(GNUInstallDirs)
include(CMakePackageConfigHelpers)
set_verbose(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
"Installation directory for cmake files, a relative path "
@ -247,19 +251,10 @@ if (FMT_INSTALL)
set(pkgconfig ${PROJECT_BINARY_DIR}/fmt.pc)
set(targets_export_name fmt-targets)
set (INSTALL_TARGETS fmt)
if (TARGET fmt-header-only)
set(INSTALL_TARGETS ${INSTALL_TARGETS} fmt-header-only)
endif ()
set_verbose(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
"Installation directory for libraries, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
set_verbose(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR}/fmt CACHE STRING
"Installation directory for include files, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
set_verbose(FMT_PKGCONFIG_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig CACHE PATH
"Installation directory for pkgconfig (.pc) files, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
@ -270,8 +265,8 @@ if (FMT_INSTALL)
VERSION ${FMT_VERSION}
COMPATIBILITY AnyNewerVersion)
join_paths(libdir_for_pc_file "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")
join_paths(includedir_for_pc_file "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
join_paths(libdir_for_pc_file "\${exec_prefix}" "${FMT_LIB_DIR}")
join_paths(includedir_for_pc_file "\${prefix}" "${FMT_INC_DIR}")
configure_file(
"${PROJECT_SOURCE_DIR}/support/cmake/fmt.pc.in"
@ -281,6 +276,8 @@ if (FMT_INSTALL)
${PROJECT_SOURCE_DIR}/support/cmake/fmt-config.cmake.in
${project_config}
INSTALL_DESTINATION ${FMT_CMAKE_DIR})
set(INSTALL_TARGETS fmt fmt-header-only)
# Use a namespace because CMake provides better diagnostics for namespaced
# imported targets.
export(TARGETS ${INSTALL_TARGETS} NAMESPACE fmt::
@ -301,7 +298,7 @@ if (FMT_INSTALL)
install(FILES $<TARGET_PDB_FILE:${INSTALL_TARGETS}>
DESTINATION ${FMT_LIB_DIR} OPTIONAL)
install(FILES ${FMT_HEADERS} DESTINATION ${FMT_INC_DIR})
install(FILES ${FMT_HEADERS} DESTINATION "${FMT_INC_DIR}/fmt")
install(FILES "${pkgconfig}" DESTINATION "${FMT_PKGCONFIG_DIR}")
endif ()