build: introduce ENABLE_DATE_INSTALL to allow user opt-out of install

When using `date` as a PRIVATE dependency, it is not required to install it. This flag give user using `date` with add_subdirectory the opportunity to disable install target Default behavior is conserved since ENABLE_DATE_INSTALL is ON
This commit is contained in:
Olivier Le Doeuff 2022-09-26 16:35:13 +02:00 committed by Howard Hinnant
parent 3286289bf6
commit 7c151cdb6a

View File

@ -20,8 +20,6 @@ cmake_minimum_required( VERSION 3.7 )
project( date VERSION 3.0.1 )
set(ABI_VERSION 3) # used as SOVERSION, increment when ABI changes
include( GNUInstallDirs )
get_directory_property( has_parent PARENT_DIRECTORY )
if (POLICY CMP0077)
@ -40,12 +38,17 @@ option( ENABLE_DATE_TESTING "Enable unit tests" OFF )
option( DISABLE_STRING_VIEW "Disable string view" OFF )
option( COMPILE_WITH_C_LOCALE "define ONLY_C_LOCALE=1" OFF )
option( BUILD_TZ_LIB "build/install of TZ library" OFF )
option( ENABLE_DATE_INSTALL "Enable unit tests" ON )
if( ENABLE_DATE_TESTING AND NOT BUILD_TZ_LIB )
message(WARNING "Testing requested, but BUILD_TZ_LIB not ON - forcing the latter")
set (BUILD_TZ_LIB ON CACHE BOOL "required for testing" FORCE)
endif( )
if( ENABLE_DATE_INSTALL )
include( GNUInstallDirs )
endif( )
function( print_option OPT )
if ( NOT DEFINED PRINT_OPTION_CURR_${OPT} OR ( NOT PRINT_OPTION_CURR_${OPT} STREQUAL ${OPT} ) )
set( PRINT_OPTION_CURR_${OPT} ${${OPT}} CACHE BOOL "" )
@ -168,46 +171,48 @@ endif( )
#[===================================================================[
installation
#]===================================================================]
set( version_config "${CMAKE_CURRENT_BINARY_DIR}/dateConfigVersion.cmake" )
if( ENABLE_DATE_INSTALL )
set( version_config "${CMAKE_CURRENT_BINARY_DIR}/dateConfigVersion.cmake" )
include( CMakePackageConfigHelpers )
write_basic_package_version_file( "${version_config}"
VERSION ${PROJECT_VERSION}
COMPATIBILITY SameMajorVersion )
include( CMakePackageConfigHelpers )
write_basic_package_version_file( "${version_config}"
VERSION ${PROJECT_VERSION}
COMPATIBILITY SameMajorVersion )
install( TARGETS date
EXPORT dateConfig
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date )
export( TARGETS date NAMESPACE date:: FILE dateTargets.cmake )
if (CMAKE_VERSION VERSION_LESS 3.15)
install(
FILES include/date/date.h
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date )
endif ()
install( TARGETS date
EXPORT dateConfig
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date )
export( TARGETS date NAMESPACE date:: FILE dateTargets.cmake )
if (CMAKE_VERSION VERSION_LESS 3.15)
install(
FILES include/date/date.h
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date )
endif ()
if( BUILD_TZ_LIB )
install( TARGETS date-tz
EXPORT dateConfig
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} ) # This is for Windows
export( TARGETS date-tz NAMESPACE date:: APPEND FILE dateTargets.cmake )
if( BUILD_TZ_LIB )
install( TARGETS date-tz
EXPORT dateConfig
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/date
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} ) # This is for Windows
export( TARGETS date-tz NAMESPACE date:: APPEND FILE dateTargets.cmake )
endif( )
if( WIN32 AND NOT CYGWIN)
set( CONFIG_LOC CMake )
else( )
set( CONFIG_LOC "${CMAKE_INSTALL_LIBDIR}/cmake/date" )
endif( )
install( EXPORT dateConfig
FILE dateTargets.cmake
NAMESPACE date::
DESTINATION ${CONFIG_LOC} )
install (
FILES cmake/dateConfig.cmake "${version_config}"
DESTINATION ${CONFIG_LOC})
endif( )
if( WIN32 AND NOT CYGWIN)
set( CONFIG_LOC CMake )
else( )
set( CONFIG_LOC "${CMAKE_INSTALL_LIBDIR}/cmake/date" )
endif( )
install( EXPORT dateConfig
FILE dateTargets.cmake
NAMESPACE date::
DESTINATION ${CONFIG_LOC} )
install (
FILES cmake/dateConfig.cmake "${version_config}"
DESTINATION ${CONFIG_LOC})
#[===================================================================[
testing
#]===================================================================]