fnmain()->Result<(), cc::Error>{letmut build =cc::Build::new();
build
.cpp(true)// Enable C++ support
.file("c/lib.cpp").include("include").define("FU_ENABLE_NUMA","0").opt_level(3)// Set optimization level to 2
.warnings(false);// Platform-specific C++ standard flags
ifcfg!(target_env ="msvc"){
build.flag("/std:c++17");// MSVC flag for C++17
}else{
build.flag("-pedantic");// GCC/Clang strict compliance
build.flag("-std=c++17");// GCC/Clang C++17 flag
}ifletErr(e)= build.try_compile("fork_union"){print!("cargo:warning={e}");returnErr(e);}println!("cargo:rerun-if-changed=c/lib.cpp");println!("cargo:rerun-if-changed=rust/lib.rs");println!("cargo:rerun-if-changed=include/fork_union.h");println!("cargo:rerun-if-changed=include/fork_union.hpp");Ok(())}