text: from conans import ConanFile, CMake, tools
  from conans.errors import ConanInvalidConfiguration
  import os
  
  
  class SystemcConan(ConanFile):
      name = "systemc"
      version = "2.3.3"
      description = """SystemC is a set of C++ classes and macros which provide
                       an event-driven simulation interface."""
      homepage = "https://www.accellera.org/"
      url = "https://github.com/conan-io/conan-center-index"
      license = "Apache-2.0"
      topics = ("simulation", "modeling", "esl", "tlm")
      settings = "os", "compiler", "build_type", "arch"
      options = {
          "shared": [True, False],
          "fPIC": [True, False],
          "disable_async_updates": [True, False],
          "disable_copyright_msg": [True, False],
          "disable_virtual_bind": [True, False],
          "enable_assertions": [True, False],
          "enable_immediate_self_notifications": [True, False],
          "enable_pthreads": [True, False]
      }
      default_options = {
          "shared": False,
          "fPIC": True,
          "disable_async_updates": False,
          "disable_copyright_msg": False,
          "disable_virtual_bind":  False,
          "enable_assertions": True,
          "enable_immediate_self_notifications": False,
          "enable_pthreads": False
      }
      generators = "cmake"
      exports_sources = "patches/**"
  
      _cmake = None
  
      @property
      def _source_subfolder(self):
          return "source_subfolder"
  
      def config_options(self):
          if self.settings.os == "Windows":
              del self.options.fPIC
              del self.options.enable_pthreads
  
      def configure(self):
  
          if self.options.shared:
              del self.options.fPIC
  
          if self.settings.os == "Macos":
              raise ConanInvalidConfiguration("Macos build not supported")
  
          if self.settings.os == "Windows" and self.options.shared:
              raise ConanInvalidConfiguration("The compilation of SystemC as a "
                                              "DLL on Windows is currently not "
                                              "supported")
  
          if tools.valid_min_cppstd(self, "17"):
              raise ConanInvalidConfiguration(
                  "C++ Standard %s not supported by SystemC" %
                  self.settings.compiler.cppstd)
  
      def source(self):
          tools.get(**self.conan_data["sources"][self.version])
          os.rename("systemc-{}".format(self.version), self._source_subfolder)
  
      def _configure_cmake(self):
  
          if self._cmake:
              return self._cmake
  
          self._cmake = CMake(self)
          self._cmake.definitions["DISABLE_ASYNC_UPDATES"] = \
              self.options.disable_async_updates
          self._cmake.definitions["DISABLE_COPYRIGHT_MESSAGE"] = \
              self.options.disable_copyright_msg
          self._cmake.definitions["DISABLE_VIRTUAL_BIND"] = \
              self.options.disable_virtual_bind
          self._cmake.definitions["ENABLE_ASSERTIONS"] = \
              self.options.enable_assertions
          self._cmake.definitions["ENABLE_IMMEDIATE_SELF_NOTIFICATIONS"] = \
              self.options.enable_immediate_self_notifications
          self._cmake.definitions["ENABLE_PTHREADS"] = \
              self.options.get_safe("enable_pthreads", False)
          self._cmake.configure(source_folder=self._source_subfolder)
          return self._cmake
  
      def build(self):
          for patch in self.conan_data["patches"][self.version]:
              tools.patch(**patch)
          cmake = self._configure_cmake()
          cmake.build()
  
      def package(self):
          cmake = self._configure_cmake()
          cmake.install()
          tools.rmdir(os.path.join(self.package_folder, "lib", "cmake"))
          tools.rmdir(os.path.join(self.package_folder, "share"))
          self.copy("LICENSE", dst="licenses", src=self._source_subfolder)
          self.copy("NOTICE", dst="licenses", src=self._source_subfolder)
  
      def package_info(self):
          self.cpp_info.libs = ["systemc"]
          # FIXME: cmake generates SystemC::systemc target, not SystemC::SystemC
          self.cpp_info.names["cmake_find_package"] = "SystemC"
          self.cpp_info.names["cmake_find_package_multi"] = "SystemC"
  
          if self.settings.os == "Linux":
              self.cpp_info.system_libs = ["pthread"]
          if self.settings.compiler == "Visual Studio":
              self.cpp_info.cxxflags.append("/vmg")
  