text: # Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
  # Spack Project Developers. See the top-level COPYRIGHT file for details.
  #
  # SPDX-License-Identifier: (Apache-2.0 OR MIT)
  
  from spack import *
  
  
  class Gnutls(AutotoolsPackage):
      """GnuTLS is a secure communications library implementing the SSL, TLS
      and DTLS protocols and technologies around them. It provides a simple C
      language application programming interface (API) to access the secure
      communications protocols as well as APIs to parse and write X.509, PKCS
      #12, OpenPGP and other required structures. It is aimed to be portable
      and efficient with focus on security and interoperability."""
  
      homepage = "https://www.gnutls.org"
      url      = "https://www.gnupg.org/ftp/gcrypt/gnutls/v3.5/gnutls-3.5.19.tar.xz"
  
      version('3.6.15', sha256='0ea8c3283de8d8335d7ae338ef27c53a916f15f382753b174c18b45ffd481558')
      version('3.6.14', sha256='5630751adec7025b8ef955af4d141d00d252a985769f51b4059e5affa3d39d63')
      version('3.6.8', sha256='aa81944e5635de981171772857e72be231a7e0f559ae0292d2737de475383e83')
      version('3.6.7.1', sha256='881b26409ecd8ea4c514fd3fbdb6fae5fab422ca7b71116260e263940a4bbbad')
      version('3.5.19', sha256='1936eb64f03aaefd6eb16cef0567457777618573826b94d03376bb6a4afadc44')
      version('3.5.13', sha256='79f5480ad198dad5bc78e075f4a40c4a315a1b2072666919d2d05a08aec13096')
      version('3.5.10', sha256='af443e86ba538d4d3e37c4732c00101a492fe4b56a55f4112ff0ab39dbe6579d')
      version('3.5.9',  sha256='82b10f0c4ef18f4e64ad8cef5dbaf14be732f5095a41cf366b4ecb4050382951')
      version('3.3.9',  sha256='39166de5293a9d30ef1cd0a4d97f01fdeed7d7dbf8db95392e309256edcb13c1')
  
      variant('zlib', default=True, description='Enable zlib compression support')
      variant('guile', default=False, description='Enable Guile bindings')
  
      # gnutls+guile is currently broken on MacOS.  See Issue #11668
      conflicts('+guile', when='platform=darwin')
  
      # Note that version 3.3.9 of gnutls doesn't support nettle 3.0.
      depends_on('nettle@3.4.1:', when='@3.6.7.1:')
      depends_on('guile', when='+guile')
      depends_on('nettle@:2.9', when='@3.3.9')
      depends_on('nettle', when='@3.5:')
      depends_on('libidn2@:2.0', when='@:3.5')
      depends_on('libidn2')
      depends_on('zlib', when='+zlib')
      depends_on('gettext')
  
      depends_on('pkgconfig', type='build')
  
      build_directory = 'spack-build'
  
      def url_for_version(self, version):
          url = "https://www.gnupg.org/ftp/gcrypt/gnutls/v{0}/gnutls-{1}.tar.xz"
          return url.format(version.up_to(2), version)
  
      def setup_build_environment(self, env):
          spec = self.spec
          if '+guile' in spec:
              env.set('GUILE', spec["guile"].prefix.bin.guile)
  
      def configure_args(self):
          spec = self.spec
          args = [
              '--enable-static',
          ]
  
          if spec.satisfies('@3.5:'):
              # use shipped libraries, might be turned into variants
              args.append('--with-included-libtasn1')
              args.append('--with-included-unistring')
              args.append('--without-p11-kit')  # p11-kit@0.23.1: ...
  
          if '+zlib' in spec:
              args.append('--with-zlib')
          else:
              args.append('--without-zlib')
  
          if '+guile' in spec:
              args.append('--enable-guile')
          else:
              args.append('--disable-guile')
  
          if self.run_tests:
              args.extend([
                  '--enable-tests',
                  '--enable-valgrind-tests',
                  '--enable-full-test-suite',
              ])
          else:
              args.extend([
                  '--disable-tests',
                  '--disable-valgrind-tests',
                  '--disable-full-test-suite',
              ])
  
          return args
  
      @property
      def headers(self):
          headers = find_all_headers(self.prefix.include)
          headers.directories = [self.prefix.include]
          return headers
  