Method detectPlatformTriple

buildsystems/build_b2.go:365–384

detectPlatformTriple dynamically detects the platform triple subdirectory in LLVM's include and lib directories. This avoids hardcoding platform-specific paths like "x86_64-unknown-linux-gnu".

(toolchainRoot string)

// in LLVM's include and lib directories. This avoids hardcoding platform-specific
// paths like "x86_64-unknown-linux-gnu".
func (b b2) detectPlatformTriple(toolchainRoot string) (string, error) {
	// Look for platform-specific subdirectories in include/
	includePath := filepath.Join(toolchainRoot, "include")
	entries, err := os.ReadDir(includePath)
	if err != nil {
		return "", fmt.Errorf("failed to read include directory: %w", err)
	}

	// Find the first subdirectory that contains c++/v1/__config_site
	for _, entry := range entries {
		if entry.IsDir() && entry.Name() != "c++" {
			configSite := filepath.Join(includePath, entry.Name(), "c++", "v1", "__config_site")
			if fileio.PathExists(configSite) {
				return entry.Name(), nil
			}
		}
	}

	return "", fmt.Errorf("could not find platform-specific subdirectory with __config_site")
}

func (b b2) formatUsingToolset(toolset, version, cxx string) string {
	var compilerCmd string