53491f2ca0
The goal is to change the version number for a new release only in CMakeLists.txt. This is the first step. Details: - CMake/gen_config.cmake: this new file is included to generate the header files config.h (private, root directory), and FL/fl_config.h (public, can be installed). This file implements also ABI version checks (removed from FL/Enumerations.H and with more checks). Warnings are issued if the chosen ABI version is invalid. - CMake/export.cmake: code to generate 'config.h' was moved to CMake/gen_config.cmake. - CMake/options.cmake: set default of FLTK_BUILD_FORMS=OFF + comments - CMakeLists.txt: move generation of FL/fl_config.h to gen_config.cmake, add API and ABI versions to CMake summary, - FL/Enumerations.H: remove most of the version number details which are now included in FL/fl_config.h. This needed also some doxygen related changes. - README.CMake.txt: improve docs of FL_ABI_VERSION and some more. Reflect the new default of CMake option FLTK_BUILD_FORMS (OFF). - documentation/Doxyfile.in: add FL/fl_config.h to file list. This file is created in the build tree (and may be "installed"). - fl_config.h.in: add version number details that have been moved here from Enumerations.H (used to generate FL/fl_config.h).
110 lines
3.4 KiB
CMake
110 lines
3.4 KiB
CMake
#
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# Generate version numbers and configure header files
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#
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# Copyright 1998-2025 by Bill Spitzak and others.
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#
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# This library is free software. Distribution and use rights are outlined in
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# the file "COPYING" which should have been included with this file. If this
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# file is missing or damaged, see the license at:
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#
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# https://www.fltk.org/COPYING.php
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#
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# Please see the following page on how to report bugs and issues:
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#
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# https://www.fltk.org/bugs.php
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#
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#######################################################################
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# Calculate limits and check FL_ABI_VERSION syntax
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#######################################################################
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# Initialize FL_ABI_VERSION
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set(FL_ABI_VERSION "${FLTK_ABI_VERSION}")
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# These are the limits (min/max) FL_ABI_VERSION is allowed to have
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math(EXPR abi_version_min "${FLTK_VERSION_MAJOR} * 10000 + ${FLTK_VERSION_MINOR} * 100")
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math(EXPR abi_version_max "${abi_version_min} + ${FLTK_VERSION_PATCH} + 1")
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if(FL_ABI_VERSION STREQUAL "")
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# no version set, silently use default
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set(FL_ABI_VERSION "${abi_version_min}")
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else()
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# check syntax of reuested ABI version (five digits)
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string(REGEX MATCH "[1-9][0-9][0-9][0-9][0-9]" reg_match "${FL_ABI_VERSION}")
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if(NOT reg_match STREQUAL "${FL_ABI_VERSION}")
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message(STATUS "FLTK_ABI_VERSION \"${FLTK_ABI_VERSION}\" is invalid. Using default = ${abi_version_min}")
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set(FL_ABI_VERSION "${abi_version_min}")
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endif()
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# check minor version (first three numbers must match)
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string(SUBSTRING "${abi_version_min}" 0 3 abi_version_minor)
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string(SUBSTRING "${FL_ABI_VERSION}" 0 3 abi_version_temp)
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if(NOT abi_version_temp STREQUAL ${abi_version_minor})
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set(FL_ABI_VERSION "${abi_version_min}")
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message(STATUS "FLTK_ABI_VERSION \"${FLTK_ABI_VERSION}\" doesn't match minor version. Using default = ${abi_version_min}")
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set(FL_ABI_VERSION "${abi_version_min}")
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endif()
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endif()
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if(FL_ABI_VERSION STRLESS ${abi_version_min})
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# should never happen
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set(FL_ABI_VERSION "${abi_version_min}")
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elseif(FL_ABI_VERSION STRGREATER ${abi_version_max})
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# accept w/o warning
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set(FL_ABI_VERSION "${abi_version_max}")
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endif()
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# reset all temporary variables
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unset(abi_version_min)
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unset(abi_version_max)
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unset(abi_version_minor)
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unset(abi_version_temp)
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unset(reg_match)
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#######################################################################
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# configure the header file "FL/fl_config.h" in the build tree
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#######################################################################
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configure_file(
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${CMAKE_CURRENT_SOURCE_DIR}/fl_config.h.in
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${CMAKE_CURRENT_BINARY_DIR}/FL/fl_config.h
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@ONLY
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)
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#######################################################################
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# generate the header file "config.h" in the build tree
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#######################################################################
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# prepare some variables for config.h
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if(IS_ABSOLUTE "${FLTK_DATADIR}")
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set(PREFIX_DATA "${FLTK_DATADIR}/fltk")
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else(IS_ABSOLUTE "${FLTK_DATADIR}")
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set(PREFIX_DATA "${CMAKE_INSTALL_PREFIX}/${FLTK_DATADIR}/fltk")
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endif(IS_ABSOLUTE "${FLTK_DATADIR}")
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if(IS_ABSOLUTE "${FLTK_DOCDIR}")
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set(PREFIX_DOC "${FLTK_DOCDIR}/fltk")
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else(IS_ABSOLUTE "${FLTK_DOCDIR}")
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set(PREFIX_DOC "${CMAKE_INSTALL_PREFIX}/${FLTK_DOCDIR}/fltk")
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endif(IS_ABSOLUTE "${FLTK_DOCDIR}")
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set(CONFIG_H_IN config.h.in)
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set(CONFIG_H config.h)
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# generate the header file
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configure_file(
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"${CMAKE_CURRENT_SOURCE_DIR}/${CONFIG_H_IN}"
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"${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_H}"
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@ONLY
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)
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