Updated lib/utfcpp

* Squashed 'lib/utfcpp/' content from commit 79835a5fa
  git-subtree-dir: lib/utfcpp
  git-subtree-split: 79835a5fa57271f07a90ed36123e30ae9741178e
* Change include path to utfcpp

1 files changed, 62 insertions, 0 deletions

diff --git a/lib/utfcpp/v3/CMakeLists.txt b/lib/utfcpp/v3/CMakeLists.txt
new file mode 100644
index 00000000..c8d4b7a3
--- /dev/null
+++ b/lib/utfcpp/v3/CMakeLists.txt
@@ -0,0 +1,62 @@
+cmake_minimum_required (VERSION 3.0.2)
+project (utf8cpp VERSION 3.2.2 LANGUAGES CXX)
+
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+    set(IS_ROOT_PROJECT ON)
+else()
+    set(IS_ROOT_PROJECT OFF)
+endif()
+
+option(UTF8_TESTS "Enable tests for UTF8-CPP" ${IS_ROOT_PROJECT})
+option(UTF8_INSTALL "Enable installation for UTF8-CPP" ${IS_ROOT_PROJECT})
+option(UTF8_SAMPLES "Enable building samples for UTF8-CPP" ${IS_ROOT_PROJECT})
+
+add_library(utf8cpp INTERFACE)
+target_include_directories(utf8cpp INTERFACE
+    "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/source>"
+    $<INSTALL_INTERFACE:include/utf8cpp>
+)
+add_library(utf8::cpp ALIAS utf8cpp)
+
+if(UTF8_INSTALL)
+    include(CMakePackageConfigHelpers)
+    if(MSVC)
+        set(DEF_INSTALL_CMAKE_DIR CMake)
+    else()
+        include(GNUInstallDirs) # define CMAKE_INSTALL_*
+        set(DEF_INSTALL_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/utf8cpp)
+    endif()
+
+    write_basic_package_version_file(
+        ${CMAKE_CURRENT_BINARY_DIR}/utf8cppConfigVersion.cmake
+        VERSION ${PROJECT_VERSION}
+        COMPATIBILITY SameMajorVersion
+    )
+
+    configure_package_config_file(
+        ${PROJECT_SOURCE_DIR}/utf8cppConfig.cmake.in
+        ${CMAKE_CURRENT_BINARY_DIR}/utf8cppConfig.cmake
+        INSTALL_DESTINATION ${DEF_INSTALL_CMAKE_DIR}
+    )
+
+    install(DIRECTORY source/ DESTINATION include/utf8cpp)
+    install(TARGETS utf8cpp EXPORT utf8cppTargets)
+    install(EXPORT utf8cppTargets DESTINATION ${DEF_INSTALL_CMAKE_DIR})
+    install(
+        FILES
+        ${CMAKE_CURRENT_BINARY_DIR}/utf8cppConfig.cmake
+        ${CMAKE_CURRENT_BINARY_DIR}/utf8cppConfigVersion.cmake
+        DESTINATION
+        ${DEF_INSTALL_CMAKE_DIR}
+    )
+endif()
+
+if(UTF8_SAMPLES)
+    add_executable(docsample ${PROJECT_SOURCE_DIR}/samples/docsample.cpp)
+    target_link_libraries(docsample PRIVATE utf8::cpp)
+endif()
+
+if(UTF8_TESTS)
+    enable_testing()
+    add_subdirectory(tests)
+endif()