old_contents: from conans import ConanFile, ConfigureEnvironment
  from conans.tools import download, unzip, untargz
  import os
  
  class BisonConan(ConanFile):
      name = "bison"
      version = "3.0.4"
      url = "https://github.com/lucteo/conan-bison.git"
      license = "GNU General Public License: https://www.gnu.org/licenses/gpl.html"
      settings = "os", "compiler", "build_type", "arch"
      exports = ""    # Bison needs to compiled on each machine to be used
                      # It hardcodes some paths from the machine it builds
  
      archiveName = "bison-3.0.4.tar.gz"
      folderName = "bison-3.0.4"
  
      def source(self):
          download("http://ftp.gnu.org/gnu/bison/" + self.archiveName, self.archiveName)
          untargz(self.archiveName)
          os.unlink(self.archiveName)
          if self.settings.os != "Windows":
              self.run("chmod +x ./%s/configure" % self.folderName)
  
      def build(self):
          if self.settings.os == "Linux" or self.settings.os == "Macos":
              env = ConfigureEnvironment(self.deps_cpp_info, self.settings)
              env_line = env.command_line
                          
              self.run("cd %s && %s ./configure --prefix=%s/out" % (self.folderName, env_line, self.conanfile_directory))
              self.run("cd %s && %s make" % (self.folderName, env_line))            
              self.run("cd %s && %s make install " % (self.folderName, env_line))            
  
      def package(self):
          self.copy("*", dst="", src="out")
  
      def package_info(self):
          # Don't list the libraries generated; bison is mainly used as a tool
          # self.cpp_info.libs = ['y']  # The libs to link against
          # self.cpp_info.libdirs = ['lib']  # Directories where libraries can be found
          self.cpp_info.resdirs = ['share/bison']  # Directories where resources, data, etc can be found
          self.cpp_info.bindirs = ['bin']  # Directories where executables and shared libs can be found
  
new_contents: from conans import ConanFile, ConfigureEnvironment
  from conans.tools import download, unzip, untargz
  import os
  
  class BisonConan(ConanFile):
      name = "bison"
      version = "3.0.4"
      url = "https://github.com/lucteo/conan-bison.git"
      license = "GNU General Public License: https://www.gnu.org/licenses/gpl.html"
      settings = "os", "compiler", "build_type", "arch"
      exports = "*"    
      build_policy= "always"  # Bison needs to compiled on each machine to be used
                              # It hardcodes some paths from the machine it builds
  
      archiveName = "bison-3.0.4.tar.gz"
      folderName = "bison-3.0.4"
  
      def source(self):
          download("http://ftp.gnu.org/gnu/bison/" + self.archiveName, self.archiveName)
          untargz(self.archiveName)
          os.unlink(self.archiveName)
          if self.settings.os != "Windows":
              self.run("chmod +x ./%s/configure" % self.folderName)
  
      def build(self):
          if self.settings.os == "Linux" or self.settings.os == "Macos":
              env = ConfigureEnvironment(self.deps_cpp_info, self.settings)
              env_line = env.command_line
                          
              self.run("cd %s && %s ./configure --prefix=%s/out" % (self.folderName, env_line, self.conanfile_directory))
              self.run("cd %s && %s make" % (self.folderName, env_line))            
              self.run("cd %s && %s make install " % (self.folderName, env_line))            
  
      def package(self):
          self.copy("*", dst="", src="out")
  
      def package_info(self):
          # Don't list the libraries generated; bison is mainly used as a tool
          # self.cpp_info.libs = ['y']  # The libs to link against
          # self.cpp_info.libdirs = ['lib']  # Directories where libraries can be found
          self.cpp_info.resdirs = ['share/bison']  # Directories where resources, data, etc can be found
          self.cpp_info.bindirs = ['bin']  # Directories where executables and shared libs can be found
  
subject: Add build_policy=always