Add CMake based build

* Fix super build (e.g. FetchContent) integration
* cmake: option() honors normal variables (CMP0077)
* Add Test

.gitignore

@@ -17,3 +17,7 @@
 aclocal.m4*
 acinclude.m4
 autom4te*
+*.swp
+.vs/
+build/
+cache/

CMakeLists.txt

@@ -0,0 +1,143 @@
+cmake_minimum_required(VERSION 3.16)
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
+
+include(ParseAc)
+parse_ac(VERSION MAJOR MINOR PATCH)
+
+project(Clp VERSION ${VERSION} LANGUAGES CXX C)
+set(PROJECT_NAMESPACE coin)
+message(STATUS "${PROJECT_NAME} version: ${PROJECT_VERSION}")
+#message(STATUS "major: ${PROJECT_VERSION_MAJOR}")
+#message(STATUS "minor: ${PROJECT_VERSION_MINOR}")
+#message(STATUS "patch: ${PROJECT_VERSION_PATCH}")
+
+# Default Build Type to be Release
+get_property(isMultiConfig GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
+if(isMultiConfig)
+  if(NOT CMAKE_CONFIGURATION_TYPES)
+    set(CMAKE_CONFIGURATION_TYPES "Release;Debug" CACHE STRING
+    "Choose the type of builds, options are: Debug Release RelWithDebInfo MinSizeRel. (default: Release;Debug)"
+    FORCE)
+  endif()
+  message(STATUS "Configuration types: ${CMAKE_CONFIGURATION_TYPES}")
+else()
+  if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE "Release" CACHE STRING
+    "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel. (default: Release)"
+    FORCE)
+  endif()
+  message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
+endif()
+
+# Layout build dir like install dir
+include(GNUInstallDirs)
+set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
+set(CMAKE_BUILD_RPATH_USE_ORIGIN ON)
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH ON)
+if(UNIX)
+  option(BUILD_SHARED_LIBS "Build shared libraries (.so or .dylib)." ON)
+  set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
+  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
+  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR})
+  # for multi-config build system (e.g. Xcode, Ninja Multi-Config)
+  foreach(OutputConfig IN LISTS CMAKE_CONFIGURATION_TYPES)
+    string(TOUPPER ${OutputConfig} OUTPUTCONFIG)
+    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${CMAKE_BINARY_DIR}/${OutputConfig}/${CMAKE_INSTALL_LIBDIR})
+    set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${CMAKE_BINARY_DIR}/${OutputConfig}/${CMAKE_INSTALL_LIBDIR})
+    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${CMAKE_BINARY_DIR}/${OutputConfig}/${CMAKE_INSTALL_BINDIR})
+  endforeach()
+else()
+  # Currently Only support static build for windows
+  option(BUILD_SHARED_LIBS "Build shared libraries (.dll)." OFF)
+  set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR})
+  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR})
+  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR})
+  # for multi-config builds (e.g. msvc)
+  foreach(OutputConfig IN LISTS CMAKE_CONFIGURATION_TYPES)
+    string(TOUPPER ${OutputConfig} OUTPUTCONFIG)
+    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${CMAKE_BINARY_DIR}/${OutputConfig}/${CMAKE_INSTALL_BINDIR})
+    set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${CMAKE_BINARY_DIR}/${OutputConfig}/${CMAKE_INSTALL_BINDIR})
+    set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_${OUTPUTCONFIG} ${CMAKE_BINARY_DIR}/${OutputConfig}/${CMAKE_INSTALL_BINDIR})
+  endforeach()
+endif()
+
+if(MSVC AND BUILD_SHARED_LIBS)
+  set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+endif()
+
+# config options
+if(MSVC)
+  # Build with multiple processes
+  add_definitions(/MP)
+  add_definitions(/D_CRT_SECURE_NO_WARNINGS /D_CRT_SECURE_NO_DEPRECATE)
+  # MSVC warning suppressions
+  add_definitions(
+    /wd4018 # 'expression' : signed/unsigned mismatch
+    /wd4065 # switch statement contains 'default' but no 'case' labels
+    /wd4101 # 'identifier' : unreferenced local variable
+    /wd4102 # 'label' : unreferenced label
+    /wd4244 # 'conversion' conversion from 'type1' to 'type2', possible loss of data
+    /wd4267 # 'var' : conversion from 'size_t' to 'type', possible loss of data
+    /wd4309 # 'conversion' : truncation of constant value
+    /wd4805 # 'operation' : unsafe mix of type 'type1' and type 'type2' in operation.
+    /wd4996 # The compiler encountered a deprecated declaration.
+    )
+endif()
+if(APPLE)
+  set(
+    CMAKE_CXX_FLAGS
+    "${CMAKE_CXX_FLAGS} -Wno-inconsistent-missing-override -Wno-unused-command-line-argument -Wno-unused-result -Wno-exceptions"
+    )
+  set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15" CACHE STRING "Minimum OS X deployment version")
+endif()
+
+# ZLIB
+if(NOT TARGET ZLIB::ZLIB)
+  find_package(ZLIB)
+endif()
+if(ZLIB_FOUND OR TARGET ZLIB::ZLIB)
+  message(STATUS "Use zlib")
+  set(HAVE_ZLIB_H "1" CACHE INTERNAL "Use zlib")
+  set(COIN_HAS_ZLIB "1" CACHE INTERNAL "Use zlib")
+endif()
+
+# PThread
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads)
+if(CMAKE_USE_PTHREADS_INIT)
+  set(PTHREADS_FOUND TRUE)
+else()
+  set(PTHREADS_FOUND FALSE)
+endif()
+
+# CoinUtils
+if(NOT TARGET Coin::CoinUtils)
+  find_package(CoinUtils REQUIRED CONFIG)
+endif()
+# Osi
+if(NOT TARGET Coin::Osi)
+  find_package(Osi REQUIRED CONFIG)
+endif()
+
+include(CheckEnv)
+include(CTest)
+
+add_subdirectory(Clp)
+
+include(GNUInstallDirs)
+install(EXPORT ${PROJECT_NAME}Targets
+  NAMESPACE Coin::
+  DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
+include(CMakePackageConfigHelpers)
+configure_package_config_file(cmake/Config.cmake.in
+  "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+  INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
+write_basic_package_version_file(
+  "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
+  COMPATIBILITY SameMajorVersion)
+install(
+  FILES
+  "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+  "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
+  DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
+  COMPONENT Devel)