174 lines
6.0 KiB
CMake
174 lines
6.0 KiB
CMake
#
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# Main CMakeLists.txt to build the FLTK project using CMake (www.cmake.org)
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# Written by Michael Surette
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#
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# Copyright 1998-2021 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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# set CMake minimum version (must be before `project()`
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#######################################################################
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# Note: previous (1.3.5) minimum version
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# cmake_minimum_required (VERSION 2.6.3)
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# Note: minimum CMake version required by GNUInstallDirs
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# cmake_minimum_required (VERSION 2.8.4)
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# Minimum CMake version required by FLTK 1.4 (06/2020, work in progress)
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cmake_minimum_required (VERSION 3.2.3 FATAL_ERROR)
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#######################################################################
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# Use "legacy mode" of FindOpenGL (avoid CMake developer warning).
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# Note: we're using FindOpenGL with `OPENGL_LIBRARIES` and not (yet)
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# the `OpenGL::GL` target. This may be changed in the future.
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# See https://cmake.org/cmake/help/latest/policy/CMP0072.html
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# Update Feb 28, 2021: To avoid a warning about "OLD" policies we set
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# OpenGL_GL_PREFERENCE directly to "LEGACY" (other option: "GLVND").
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# if (POLICY CMP0072)
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# cmake_policy (SET CMP0072 OLD)
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# endif ()
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set (OpenGL_GL_PREFERENCE LEGACY)
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#######################################################################
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# define the FLTK project and version
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#######################################################################
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project (FLTK VERSION 1.3.8)
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#######################################################################
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# include macro definitions of generally used macros
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#######################################################################
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include (CMake/fl_debug_var.cmake)
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include (CMake/fl_add_library.cmake)
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if (false)
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fl_debug_var (FLTK_VERSION_MAJOR)
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fl_debug_var (FLTK_VERSION_MINOR)
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fl_debug_var (FLTK_VERSION_PATCH)
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fl_debug_var (FLTK_VERSION)
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endif (false)
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#######################################################################
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# basic setup
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#######################################################################
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include (CMake/setup.cmake)
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#######################################################################
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# check for headers, libraries and functions
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#######################################################################
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include (CMake/resources.cmake)
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#######################################################################
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# options
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#######################################################################
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include (CMake/options.cmake)
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#######################################################################
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# print (debug) several build variables and options
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#######################################################################
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set (debug_build 0) # set to 1 to show debug info
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if (debug_build)
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message ("")
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message (STATUS "${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt: set debug_build to 0 to disable the following info:")
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fl_debug_var (WIN32)
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fl_debug_var (MINGW)
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fl_debug_var (CYGWIN)
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fl_debug_var (MSVC)
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fl_debug_var (UNIX)
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fl_debug_var (APPLE)
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fl_debug_var (ANDROID)
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fl_debug_var (CMAKE_BUILD_TYPE)
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fl_debug_var (CMAKE_SIZEOF_VOID_P)
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fl_debug_var (OPTION_OPTIM)
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fl_debug_var (CMAKE_C_FLAGS)
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fl_debug_var (CMAKE_CXX_FLAGS)
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fl_debug_var (CMAKE_EXE_LINKER_FLAGS)
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message (STATUS "${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt: end of debug_build info.")
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endif (debug_build)
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unset (debug_build)
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#######################################################################
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# variables shared by export and install
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# export.cmake creates configuration files for direct use in a built but uninstalled FLTK
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# install.cmake creates these files for an installed FLTK
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# these two would only differ in paths, so common variables are set here
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#######################################################################
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include (CMake/variables.cmake)
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#######################################################################
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# final config and export
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#######################################################################
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include (CMake/export.cmake)
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configure_file (
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${CMAKE_CURRENT_SOURCE_DIR}/abi-version.cmake.in
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${CMAKE_CURRENT_BINARY_DIR}/FL/abi-version.h
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@ONLY
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)
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#######################################################################
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# options to build test/demo and example programs
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#######################################################################
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if (FLTK_BUILD_TEST)
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add_subdirectory (test)
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endif (FLTK_BUILD_TEST)
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if (FLTK_BUILD_EXAMPLES)
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add_subdirectory (examples)
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endif (FLTK_BUILD_EXAMPLES)
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#######################################################################
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# installation
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#######################################################################
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include (CMake/install.cmake)
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#######################################################################
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# Output Configuration Summary
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#######################################################################
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include (FeatureSummary)
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message ("")
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set (_descr "${PROJECT_NAME} ${FLTK_VERSION} generated by CMake ${CMAKE_VERSION}")
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feature_summary (WHAT ALL DESCRIPTION "Configuration Summary for ${_descr} --\n")
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message (STATUS "Static libraries will be built in ${CMAKE_CURRENT_BINARY_DIR}/lib")
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if (OPTION_BUILD_SHARED_LIBS)
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message (STATUS "Shared libraries will be built in ${CMAKE_CURRENT_BINARY_DIR}/lib")
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else ()
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message (STATUS "Shared libraries will not be built (set OPTION_BUILD_SHARED_LIBS=ON to build)")
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endif ()
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if (FLTK_BUILD_TEST)
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message (STATUS "Test programs will be built in ${CMAKE_CURRENT_BINARY_DIR}/bin/test")
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endif ()
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if (FLTK_BUILD_EXAMPLES)
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message (STATUS "Example programs will be built in ${CMAKE_CURRENT_BINARY_DIR}/bin/examples")
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else ()
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message (STATUS "Example programs will not be built (set FLTK_BUILD_EXAMPLES=ON to build)")
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endif ()
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message ("")
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message (STATUS "End of Configuration Summary --\n")
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