fn configure_windows()

in aws-lc-sys/builder/cmake_builder.rs [243:323]
78 lines of code
7 McCabe index (conditional complexity)

    fn configure_windows(&self, cmake_cfg: &mut cmake::Config) {
        match (target_env().as_str(), target_arch().as_str()) {
            ("msvc", "aarch64") => {
                // If CMAKE_GENERATOR is either not set or not set to "Ninja"
                let cmake_generator = optional_env("CMAKE_GENERATOR");
                if cmake_generator.is_none() || cmake_generator.unwrap().to_lowercase() != "ninja" {
                    // The following is not supported by the Ninja generator
                    cmake_cfg.generator_toolset(format!(
                        "ClangCL{}",
                        if cfg!(target_arch = "x86_64") {
                            ",host=x64"
                        } else {
                            ""
                        }
                    ));
                    cmake_cfg.define("CMAKE_GENERATOR_PLATFORM", "ARM64");
                }
                cmake_cfg.static_crt(is_crt_static());
                cmake_cfg.define("CMAKE_SYSTEM_NAME", "Windows");
                cmake_cfg.define("CMAKE_SYSTEM_PROCESSOR", "ARM64");
            }
            ("msvc", "x86") => {
                cmake_cfg.static_crt(is_crt_static());
                cmake_cfg.define("CMAKE_SYSTEM_NAME", "");
                cmake_cfg.define("CMAKE_SYSTEM_PROCESSOR", "");
            }
            ("msvc", _) => {
                cmake_cfg.static_crt(is_crt_static());
            }
            ("gnu", "x86") => {
                cmake_cfg.define("CMAKE_SYSTEM_NAME", "Windows");
                cmake_cfg.define("CMAKE_SYSTEM_PROCESSOR", "x86");
            }
            _ => {}
        }
        if use_prebuilt_nasm() {
            emit_warning("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
            emit_warning("!!!   Using pre-built NASM binaries   !!!");
            emit_warning("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");

            let script_name = if cfg!(target_os = "windows") {
                "prebuilt-nasm.bat"
            } else {
                "prebuilt-nasm.sh"
            };

            let script_path = self
                .manifest_dir
                .join("builder")
                .join(script_name)
                .display()
                .to_string();
            let script_path = script_path.replace('\\', "/");

            cmake_cfg.define("CMAKE_ASM_NASM_COMPILER", script_path.as_str());
            // Without the following definition, the build fails with a message similar to the one
            // reported here: https://gitlab.kitware.com/cmake/cmake/-/issues/19453
            // The variables below were found in the associated fix:
            // https://gitlab.kitware.com/cmake/cmake/-/merge_requests/4257/diffs
            cmake_cfg.define(
                "CMAKE_ASM_NASM_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreaded",
                "",
            );
            cmake_cfg.define(
                "CMAKE_ASM_NASM_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDLL",
                "",
            );
            cmake_cfg.define(
                "CMAKE_ASM_NASM_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDebug",
                "",
            );
            cmake_cfg.define(
                "CMAKE_ASM_NASM_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDebugDLL",
                "",
            );
            cmake_cfg.define(
                "CMAKE_ASM_NASM_COMPILE_OPTIONS_MSVC_DEBUG_INFORMATION_FORMAT_ProgramDatabase",
                "",
            );
        }
    }