简单的 ROOT 工程

这是使用文件系统，但不使用字典的最小 ROOT 项目示例。

examples/root-usefile/CMakeLists.txt

cmake_minimum_required(VERSION 3.1...3.21)
project(RootUseFileExample LANGUAGES CXX)
find_package(ROOT 6.16 CONFIG REQUIRED)
# Sets up global settings
include("${ROOT_USE_FILE}")
# This is required for ROOT < 6.16
# string(REPLACE "-L " "-L" ROOT_EXE_LINKER_FLAGS "${ROOT_EXE_LINKER_FLAGS}")
# This is required on if there is more than one flag (like on macOS)
separate_arguments(ROOT_EXE_LINKER_FLAGS)
add_executable(RootUseFileExample SimpleExample.cxx)
target_link_libraries(RootUseFileExample PUBLIC ${ROOT_LIBRARIES}
                                                ${ROOT_EXE_LINKER_FLAGS})

examples/root-usefile/SimpleExample.cxx

#include <TLorentzVector.h>
int main() {
    TLorentzVector v(1,2,3,4);
    v.Print();
    return 0;
}