text: import os
  
  from conans import ConanFile, CMake, tools
  
  class QhullConan(ConanFile):
      name = "qhull"
      description = "Qhull computes the convex hull, Delaunay triangulation, " \
                    "Voronoi diagram, halfspace intersection about a point, " \
                    "furthest-site Delaunay triangulation, and furthest-site " \
                    "Voronoi diagram."
      license = "Qhull"
      topics = ("conan", "qhull", "geometry", "convex", "triangulation", "intersection")
      homepage = "http://www.qhull.org"
      url = "https://github.com/conan-io/conan-center-index"
      exports_sources = ["CMakeLists.txt", "patches/**"]
      generators = "cmake"
      settings = "os", "arch", "compiler", "build_type"
      options = {
          "shared": [True, False],
          "fPIC": [True, False],
          "reentrant": [True, False]
      }
      default_options = {
          "shared": False,
          "fPIC": True,
          "reentrant": True
      }
  
      _cmake = None
  
      @property
      def _source_subfolder(self):
          return "source_subfolder"
  
      @property
      def _build_subfolder(self):
          return "build_subfolder"
  
      def config_options(self):
          if self.settings.os == "Windows":
              del self.options.fPIC
  
      def configure(self):
          if self.options.shared:
              del self.options.fPIC
          del self.settings.compiler.libcxx
          del self.settings.compiler.cppstd
  
      def package_id(self):
          del self.info.options.reentrant
  
      def source(self):
          tools.get(**self.conan_data["sources"][self.version])
          os.rename(self.name + "-" + self.version, self._source_subfolder)
  
      def build(self):
          for patch in self.conan_data.get("patches", {}).get(self.version, []):
              tools.patch(**patch)
          cmake = self._configure_cmake()
          cmake.build()
  
      def _configure_cmake(self):
          if self._cmake:
              return self._cmake
          self._cmake = CMake(self)
          self._cmake.configure(build_folder=self._build_subfolder)
          return self._cmake
  
      def package(self):
          self.copy("COPYING.txt", dst="licenses", src=self._source_subfolder)
          cmake = self._configure_cmake()
          cmake.install()
          tools.rmdir(os.path.join(self.package_folder, "doc"))
          tools.rmdir(os.path.join(self.package_folder, "man"))
          tools.rmdir(os.path.join(self.package_folder, "lib", "cmake"))
          tools.rmdir(os.path.join(self.package_folder, "lib", "pkgconfig"))
          tools.rmdir(os.path.join(self.package_folder, "share"))
  
      def package_info(self):
          self.cpp_info.names["cmake_find_package"] = "Qhull"
          self.cpp_info.names["cmake_find_package_multi"] = "Qhull"
          self.cpp_info.components["libqhull"].names["cmake_find_package"] = self._qhull_cmake_name
          self.cpp_info.components["libqhull"].names["cmake_find_package_multi"] = self._qhull_cmake_name
          self.cpp_info.components["libqhull"].names["pkg_config"] = self._qhull_pkgconfig_name
          self.cpp_info.components["libqhull"].libs = [self._qhull_lib_name]
          if self.settings.os == "Linux":
              self.cpp_info.components["libqhull"].system_libs.append("m")
          if self.settings.compiler == "Visual Studio" and self.options.shared:
              self.cpp_info.components["libqhull"].defines.extend(["qh_dllimport"])
  
          bin_path = os.path.join(self.package_folder, "bin")
          self.output.info("Appending PATH environment variable: {}".format(bin_path))
          self.env_info.PATH.append(bin_path)
  
      @property
      def _qhull_cmake_name(self):
          name = ""
          if self.options.reentrant:
              name = "qhull_r" if self.options.shared else "qhullstatic_r"
          else:
              name = "libqhull" if self.options.shared else "qhullstatic"
          return name
  
      @property
      def _qhull_pkgconfig_name(self):
          name = "qhull"
          if not self.options.shared:
              name += "static"
          if self.options.reentrant:
              name += "_r"
          return name
  
      @property
      def _qhull_lib_name(self):
          name = "qhull"
          if not self.options.shared:
              name += "static"
          if self.settings.build_type == "Debug" or self.options.reentrant:
              name += "_"
              if self.options.reentrant:
                  name += "r"
              if self.settings.build_type == "Debug":
                  name += "d"
          return name
  