Method WriteMakeRule

Source/cmLocalUnixMakefileGenerator3.cxx:569–643

}

void cmLocalUnixMakefileGenerator3::WriteMakeRule(
  std::ostream& os, char const* comment, std::string const& target,
  std::vector<std::string> const& depends,
  std::vector<std::string> const& commands, bool symbolic, bool in_help)
{
  // Make sure there is a target.
  if (target.empty()) {
    std::string err("No target for WriteMakeRule! called with comment: ");
    if (comment) {
      err += comment;
    }
    cmSystemTools::Error(err);
    return;
  }

  std::string replace;

  // Write the comment describing the rule in the makefile.
  if (comment) {
    replace = comment;
    std::string::size_type lpos = 0;
    std::string::size_type rpos;
    while ((rpos = replace.find('\n', lpos)) != std::string::npos) {
      os << "# " << replace.substr(lpos, rpos - lpos) << "\n";
      lpos = rpos + 1;
    }
    os << "# " << replace.substr(lpos) << "\n";
  }

  // Construct the left hand side of the rule.
  std::string tgt =
    this->ConvertToMakefilePath(this->MaybeRelativeToTopBinDir(target));

  char const* space = "";
  if (tgt.size() == 1) {
    // Add a space before the ":" to avoid drive letter confusion on
    // Windows.
    space = " ";
  }

  // Mark the rule as symbolic if requested.
  if (symbolic) {
    if (cmValue sym =
          this->Makefile->GetDefinition("CMAKE_MAKE_SYMBOLIC_RULE")) {
      os << tgt << space << ": " << *sym << '\n';
    }
  }

  // Write the rule.
  if (depends.empty()) {
    // No dependencies.  The commands will always run.
    os << tgt << space << ":\n";
  } else {
    // Split dependencies into multiple rule lines.  This allows for
    // very long dependency lists even on older make implementations.
    for (std::string const& depend : depends) {
      os << tgt << space << ": "
         << this->ConvertToMakefilePath(this->MaybeRelativeToTopBinDir(depend))