Function FindCMakeResourcesInBuildTree

Source/cmSystemTools.cxx:3114–3139

}

void FindCMakeResourcesInBuildTree(std::string const& exe_dir)
{
  // Build tree has "<build>/bin[/<config>]/cmake" and
  // "<build>/CMakeFiles/CMakeSourceDir.txt".
  std::string dir = cmSystemTools::GetFilenamePath(exe_dir);
  std::string src_dir_txt = cmStrCat(dir, "/CMakeFiles/CMakeSourceDir.txt");
  cmsys::ifstream fin(src_dir_txt.c_str());
  std::string src_dir;
  if (fin && cmSystemTools::GetLineFromStream(fin, src_dir) &&
      cmSystemTools::FileIsDirectory(src_dir)) {
    cmSystemToolsCMakeRoot = src_dir;
  } else {
    dir = cmSystemTools::GetFilenamePath(dir);
    src_dir_txt = cmStrCat(dir, "/CMakeFiles/CMakeSourceDir.txt");
    cmsys::ifstream fin2(src_dir_txt.c_str());
    if (fin2 && cmSystemTools::GetLineFromStream(fin2, src_dir) &&
        cmSystemTools::FileIsDirectory(src_dir)) {
      cmSystemToolsCMakeRoot = src_dir;
    }
  }
  if (!cmSystemToolsCMakeRoot.empty() && cmSystemToolsHTMLDoc.empty() &&
      cmSystemTools::FileExists(
        cmStrCat(dir, "/Utilities/Sphinx/html/index.html"))) {
    cmSystemToolsHTMLDoc = cmStrCat(dir, "/Utilities/Sphinx/html");
  }
}
#endif
}