CMake instead of autotools; Windows fixes; Snip superfluous files, an…

…d rename README => .md

.editorconfig

@@ -1,5 +1,5 @@
 # https://editorconfig.org/
-root = yes
+root = true
 
 [*]
 charset = utf-8

.github/workflows/build.yaml

@@ -10,11 +10,9 @@ jobs:
     - name: dependencies
       run: |
            sudo apt-get -qy update
-           sudo apt-get -qfy install --no-install-recommends build-essential automake autotools-dev pkg-config libutfcpp-dev libxml2-dev libxml2-utils python3-dev python3-setuptools swig
-    - name: autoreconf
-      run: autoreconf -fvi
+           sudo apt-get -qfy install --no-install-recommends build-essential cmake pkg-config libutfcpp-dev libxml2-dev libxml2-utils python3-dev python3-setuptools swig
     - name: configure
-      run: ./configure --disable-static --enable-python-bindings
+      run: cmake -DENABLE_PYTHON_BINDINGS=ON .
     - name: build
       run: make -j4 V=1 VERBOSE=1
     - name: tests

.gitignore

@@ -1,30 +1,13 @@
 *.pyc
-**/*.deps/
-/build/
+/build*/
 /.ccls-cache/
 /*.pc
-/aclocal.m4
-/autom4te.cache
-/compile
-/config.guess
-/config.log
-/config.status
-/config.sub
-/configure
-/depcomp
-/INSTALL
-/install-sh
-/libtool
-/ltmain.sh
-/lttoolbox/.libs
-/m4/libtool.m4
-/m4/lt~obsolete.m4
-/m4/ltoptions.m4
-/m4/ltsugar.m4
-/m4/ltversion.m4
-/Makefile
-/Makefile.in
-/missing
+Makefile
+CMakeCache.txt
+CMakeFiles
+CTestTestfile.cmake
+cmake_install.cmake
+install_manifest.txt
 
 # Prerequisites
 *.d
@@ -75,6 +58,7 @@
 /lttoolbox/lt-expand
 /lttoolbox/lt-append
 /lttoolbox/lsx-comp
+/lttoolbox/lsx-comp.1
 /lttoolbox/lt-paradigm
 /lttoolbox/lt-invert
 /lttoolbox/lt-restrict

CMakeLists.txt

@@ -0,0 +1,159 @@
+cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
+cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
+project(lttoolbox
+	VERSION 3.7.12
+	LANGUAGES CXX C
+	)
+set(VERSION ${PROJECT_VERSION})
+set(VERSION_ABI 3)
+set(PACKAGE_NAME ${PROJECT_NAME})
+set(PACKAGE_BUGREPORT "apertium-stuff@lists.sourceforge.net")
+
+add_definitions("-DPACKAGE_VERSION=\"${PROJECT_VERSION}\"")
+
+set(MASTER_PROJECT OFF)
+if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
+	set(MASTER_PROJECT ON)
+endif ()
+
+# Release or Debug
+if(MASTER_PROJECT AND NOT CMAKE_BUILD_TYPE)
+	set(CMAKE_BUILD_TYPE "Release")
+endif()
+
+set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+set(CMAKE_MACOSX_RPATH ON)
+
+include(GNUInstallDirs)
+
+option(BUILD_SHARED_LIBS "Set to OFF to use static library" ON)
+option(BUILD_TESTING "Set to OFF to disable tests" ON)
+option(ENABLE_PYTHON_BINDINGS "Set to ON to build the Python wrapper" OFF)
+
+if(MSVC)
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /utf-8 /std:c++latest /Zc:__cplusplus /permissive- /W4 /MP")
+	set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /O2")
+	set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /LTCG")
+	set(CMAKE_C_FLAGS ${CMAKE_CXX_FLAGS})
+	set(CMAKE_C_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE})
+else()
+	set(_FLAGS_COMMON "-Wall -Wextra -Wno-missing-field-initializers -Wno-deprecated -Wno-unused-parameter -fPIC")
+
+	include(CheckCCompilerFlag)
+	include(CheckCXXCompilerFlag)
+
+	foreach(flag "-Wno-unused-result" "-flto")
+		string(REGEX REPLACE "[^A-Za-z0-9]" "-" _flag ${flag})
+		CHECK_CXX_COMPILER_FLAG(${flag} COMPILER_SUPPORTS_${_flag})
+		if(COMPILER_SUPPORTS_${_flag})
+			set(_FLAGS_COMMON "${_FLAGS_COMMON} ${flag}")
+		endif()
+	endforeach()
+	if(COMPILER_SUPPORTS_flto)
+		set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} -flto")
+	endif()
+
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_FLAGS_COMMON} -fvisibility-inlines-hidden")
+
+	# Enable latest possible C standard
+	foreach(flag "-std=c2x" "-std=c11" "-std=c1x" "-std=c99")
+		string(REGEX REPLACE "[^a-z0-9]" "-" _flag ${flag})
+		CHECK_C_COMPILER_FLAG(${flag} COMPILER_SUPPORTS_${_flag})
+		if(COMPILER_SUPPORTS_${_flag})
+			set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}")
+			break()
+		endif()
+	endforeach()
+
+	# Require latest possible C++ standard
+	foreach(flag "-std=c++23" "-std=c++2b"  "-std=c++20" "-std=c++2a" "-std=c++17")
+		string(REGEX REPLACE "[^a-z0-9]" "-" _flag ${flag})
+		CHECK_CXX_COMPILER_FLAG(${flag} COMPILER_SUPPORTS_${_flag})
+		if(COMPILER_SUPPORTS_${_flag})
+			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}")
+			set(_ENABLED_CXX ${flag})
+			break()
+		endif()
+	endforeach()
+	if(NOT _ENABLED_CXX)
+		message(FATAL_ERROR "Could not enable at least C++17 - upgrade your compiler")
+	endif()
+
+	# Generate pkg-config file
+	set(prefix      ${CMAKE_INSTALL_PREFIX})
+	set(exec_prefix "\${prefix}")
+	set(libdir      "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
+	set(includedir  "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
+	configure_file(lttoolbox.pc.in lttoolbox.pc @ONLY)
+	install(FILES "${CMAKE_CURRENT_BINARY_DIR}/lttoolbox.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig/")
+endif()
+
+try_compile(SIZET_NOT_CSTDINT ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/lttoolbox/check-cstdint.cc)
+if(SIZET_NOT_CSTDINT)
+	add_definitions(-DSIZET_NOT_CSTDINT)
+endif()
+
+find_package(LibXml2 REQUIRED)
+include_directories(${LIBXML2_INCLUDE_DIR})
+
+if(WIN32)
+	add_definitions(-D_SECURE_SCL=0 -D_ITERATOR_DEBUG_LEVEL=0 -D_CRT_SECURE_NO_DEPRECATE -DWIN32_LEAN_AND_MEAN -DVC_EXTRALEAN -DNOMINMAX)
+	add_definitions(-DSTDC_HEADERS -DREGEX_MALLOC)
+	include_directories("lttoolbox/win32")
+else()
+	add_definitions(-D_POSIX_C_SOURCE=200112 -D_GNU_SOURCE)
+endif()
+
+if(NOT APPLE)
+	find_package(Threads REQUIRED)
+endif()
+
+# Unlocked I/O functions
+include(CheckSymbolExists)
+set(CMAKE_REQUIRED_DEFINITIONS -D_POSIX_C_SOURCE=200112 -D_GNU_SOURCE)
+foreach(func fread_unlocked fwrite_unlocked fgetc_unlocked fputc_unlocked fputs_unlocked fmemopen)
+	string(TOUPPER ${func} _uc)
+	CHECK_SYMBOL_EXISTS(${func} "stdio.h" HAVE_DECL_${_uc})
+	if(HAVE_DECL_${_uc})
+		add_definitions(-DHAVE_DECL_${_uc})
+	endif()
+endforeach()
+unset(CMAKE_REQUIRED_DEFINITIONS)
+
+# getopt
+find_path(GETOPT_INCLUDE getopt.h)
+include_directories(${GETOPT_INCLUDE})
+if(VCPKG_TOOLCHAIN)
+	find_library(GETOPT_LIB NAMES getopt REQUIRED)
+	add_definitions(-DHAVE_GETOPT_LONG)
+else()
+	set(GETOPT_LIB)
+	CHECK_SYMBOL_EXISTS(getopt_long "getopt.h" HAVE_DECL_GETOPT_LONG)
+	if(HAVE_DECL_GETOPT_LONG)
+		add_definitions(-DHAVE_GETOPT_LONG)
+	endif()
+endif()
+
+# ICU
+find_package(ICU COMPONENTS i18n io uc REQUIRED)
+
+# utf8cpp / utfcpp
+find_path(UTFCPP_INCLUDE_DIRS utf8.h PATH_SUFFIXES utf8cpp utfcpp utf8 REQUIRED)
+include_directories(${UTFCPP_INCLUDE_DIRS})
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+
+if(BUILD_TESTING)
+	enable_testing()
+	find_package(Python 3.8 REQUIRED)
+	set(PYTHON_EXECUTABLE ${Python_EXECUTABLE})
+	set(ENV{CTEST_OUTPUT_ON_FAILURE} 1)
+	set(CMAKE_CTEST_ARGUMENTS "-VV")
+endif()
+
+add_subdirectory(lttoolbox)
+
+if(ENABLE_PYTHON_BINDINGS)
+	add_subdirectory(python)
+endif()