mirror of https://git.tukaani.org/xz.git
CMake: Require CMake 3.20 or later
This allows a few cleanups.
This commit is contained in:
Lasse Collin
parent
028185dd48
commit
9231c39ffb
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@ -4,19 +4,17 @@
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#
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# CMake support for building XZ Utils
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#
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# CMake 3.20 or later is recommended. Older versions down to 3.14 work
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# too with the following limitations:
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# Requirements:
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#
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# - Translations aren't supported.
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# - CMake 3.20 or later
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#
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# - Generated liblzma.pc won't be relocatable.
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# - To get translated messages, install GNU gettext tools (the command
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# msgfmt is needed). Alternatively disable translations by setting
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# XZ_NLS=OFF.
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#
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# To get translated messages, install GNU gettext tools (the command msgfmt
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# is needed). Alternatively disable translations by setting XZ_NLS=OFF.
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#
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# If building from xz.git instead of a release tarball: To generate
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# translated man pages, run po4a/update-po which requires the po4a tool.
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# The build works without this step too.
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# - If building from xz.git instead of a release tarball: To generate
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# translated man pages, run po4a/update-po which requires the po4a
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# tool. The build works without this step too.
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#
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# About CMAKE_BUILD_TYPE:
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#
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@ -79,8 +77,7 @@
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#
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#############################################################################
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# NOTE: Translation support is disabled with CMake older than 3.20.
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cmake_minimum_required(VERSION 3.14...3.29 FATAL_ERROR)
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cmake_minimum_required(VERSION 3.20...3.29 FATAL_ERROR)
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include(CMakePushCheckState)
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include(CheckIncludeFile)
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@ -286,7 +283,7 @@ if(NOT HAVE_CLOCK_GETTIME)
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# With glibc <= 2.17 or Solaris 10 this needs librt.
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# Add librt for the next check for HAVE_CLOCK_GETTIME. If it is
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# found after including the library, we know that librt is required.
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list(INSERT CMAKE_REQUIRED_LIBRARIES 0 rt)
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list(PREPEND CMAKE_REQUIRED_LIBRARIES rt)
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check_symbol_exists(clock_gettime time.h HAVE_CLOCK_GETTIME_LIBRT)
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# If it was found now, add librt to all targets and keep it in
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@ -295,7 +292,7 @@ if(NOT HAVE_CLOCK_GETTIME)
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link_libraries(rt)
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set(LIBS "-lrt ${LIBS}") # For liblzma.pc
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else()
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list(REMOVE_AT CMAKE_REQUIRED_LIBRARIES 0)
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list(POP_FRONT CMAKE_REQUIRED_LIBRARIES)
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endif()
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endif()
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@ -308,31 +305,19 @@ if(HAVE_CLOCK_GETTIME OR HAVE_CLOCK_GETTIME_LIBRT)
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endif()
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# Translation support requires CMake 3.20 because it added the Intl::Intl
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# target so we don't need to play with the individual variables.
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#
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# The definition ENABLE_NLS is added only to those targets that use it, thus
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# it's not done here. (xz has translations, xzdec doesn't.)
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set(XZ_NLS_DEFAULT OFF)
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if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.20")
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find_package(Intl)
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find_package(Gettext)
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if(Intl_FOUND AND GETTEXT_FOUND)
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find_package(Intl)
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find_package(Gettext)
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if(Intl_FOUND AND GETTEXT_FOUND)
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set(XZ_NLS_DEFAULT ON)
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endif()
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endif()
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option(XZ_NLS "Native Language Support (translated messages and man pages)"
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"${XZ_NLS_DEFAULT}")
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if(XZ_NLS)
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if(CMAKE_VERSION VERSION_LESS "3.20")
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message(FATAL_ERROR "Native language support (NLS) requires "
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"CMake >= 3.20. "
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"Upgrade to a newer CMake or set XZ_NLS=OFF.")
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endif()
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if(NOT Intl_FOUND)
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message(FATAL_ERROR "Native language support (NLS) was enabled but "
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"find_package(Intl) failed. "
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@ -647,7 +632,7 @@ if(XZ_THREADS)
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# Make the thread libs available in later checks. In practice
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# only pthread_condattr_setclock check should need this.
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list(INSERT CMAKE_REQUIRED_LIBRARIES 0 "${CMAKE_THREAD_LIBS_INIT}")
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list(PREPEND CMAKE_REQUIRED_LIBRARIES "${CMAKE_THREAD_LIBS_INIT}")
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# Check if pthread_condattr_setclock() exists to
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# use CLOCK_MONOTONIC.
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@ -833,9 +818,9 @@ if("sha256" IN_LIST XZ_CHECKS)
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else()
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# Try with libmd. Other checks don't need it so we
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# don't need to leave it into CMAKE_REQUIRED_LIBRARIES.
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list(INSERT CMAKE_REQUIRED_LIBRARIES 0 md)
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list(PREPEND CMAKE_REQUIRED_LIBRARIES md)
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check_c_source_compiles("${SOURCE}" "${HAVE_X}_LIBMD")
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list(REMOVE_AT CMAKE_REQUIRED_LIBRARIES 0)
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list(POP_FRONT CMAKE_REQUIRED_LIBRARIES)
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if(${HAVE_X}_LIBMD)
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# NOTE: Just "${HAVE_X}", not "${HAVE_X}_LIBMD":
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target_compile_definitions(liblzma PRIVATE
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@ -1534,20 +1519,14 @@ file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/liblzma-config.cmake"
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"${LZMA_CONFIG_CONTENTS}")
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# Create liblzma.pc. If using CMake >= 3.20 and CMAKE_INSTALL_<dir> paths
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# are relative to CMAKE_INSTALL_PREFIX, the .pc file will be relocatable
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# (that is, all paths will be relative to ${prefix}). Otherwise absolute
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# Create liblzma.pc. If CMAKE_INSTALL_<dir> paths are relative to
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# CMAKE_INSTALL_PREFIX, the .pc file will be relocatable (that is,
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# all paths will be relative to ${prefix}). Otherwise absolute
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# paths will be used.
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set(prefix "${CMAKE_INSTALL_PREFIX}")
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set(exec_prefix "\${prefix}")
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if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.20")
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cmake_path(APPEND libdir "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")
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cmake_path(APPEND includedir "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
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else()
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set(libdir "${CMAKE_INSTALL_FULL_LIBDIR}")
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set(includedir "${CMAKE_INSTALL_FULL_INCLUDEDIR}")
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endif()
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cmake_path(APPEND libdir "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")
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cmake_path(APPEND includedir "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
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# Threads::Threads is linked in only when using POSIX threads.
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# Use an empty value if using Windows threads or if threading is disabled.
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@ -2263,7 +2242,10 @@ xzdiff, xzgrep, xzmore, xzless, and their symlinks" ON)
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foreach(S xzdiff xzgrep xzmore xzless)
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configure_file("src/scripts/${S}.in" "${S}"
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@ONLY
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NEWLINE_STYLE LF)
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NEWLINE_STYLE LF
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FILE_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE
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GROUP_READ GROUP_EXECUTE
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WORLD_READ WORLD_EXECUTE)
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if(ENABLE_SCRIPTS)
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install(PROGRAMS "${CMAKE_CURRENT_BINARY_DIR}/${S}"
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@ -2272,12 +2254,6 @@ xzdiff, xzgrep, xzmore, xzless, and their symlinks" ON)
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endif()
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endforeach()
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# file(CHMOD ...) would need CMake 3.19 so use execute_process instead.
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# Using +x is fine even if umask was 077. If execute bit is set at all
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# then "make install" will set it for group and other access bits too.
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execute_process(COMMAND chmod +x xzdiff xzgrep xzmore xzless
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WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}")
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unset(xz)
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unset(POSIX_SHELL)
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unset(enable_path_for_scripts)
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