New package: swipl (#13978)

* New package: swipl

* Removed boilerplate, added maintainer

* Fixed python 2 incompatibility

* Update var/spack/repos/builtin/packages/swipl/package.py

Co-Authored-By: Adam J. Stewart <ajstewart426@gmail.com>

* swipl: Added conflict with intel compiler

var/spack/repos/builtin/packages/swipl/package.py

@@ -0,0 +1,71 @@
+# Copyright 2013-2019 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 Swipl(CMakePackage):
+    """ SWI-Prolog is a versatile implementation of the Prolog language.
+    Although SWI-Prolog gained its popularity primarily in education,
+    its development is mostly driven by the needs for application development.
+    This is facilitated by a rich interface to other IT components by
+    supporting many document types and (network) protocols as well as a
+    comprehensive low-level interface to C that is the basis for high-level
+    interfaces to C++, Java (bundled), C#, Python, etc (externally available).
+
+    Data type extensions such as dicts and strings as well as full support
+    for Unicode and unbounded integers simplify smooth exchange of data
+    with other components."""
+
+    homepage = "https://www.swi-prolog.org"
+    url      = "https://www.swi-prolog.org/download/stable/src/swipl-8.0.3.tar.gz"
+
+    maintainers = ['alexrobomind']
+
+    version('8.0.3', sha256='cee59c0a477c8166d722703f6e52f962028f3ac43a5f41240ecb45dbdbe2d6ae')
+
+    variant('gmp', default=True, description='bignum and rational number support')
+    variant('xpce', default=True, description='GUI support')
+    variant('ssl', default=True, description='SSL support')
+    variant('zlib', default=True, description='Compressed streams support')
+    variant('odbc', default=True, description='ODBC database access')
+    variant('unwind', default=True, description='Build with stack traces in crash reports')
+
+    depends_on('uuid')
+    depends_on('readline')
+
+    depends_on('gmp', when='+gmp')
+    depends_on('unwind', when='+unwind')
+    depends_on('unixodbc', when='+odbc')
+    depends_on('openssl', when='+ssl')
+    depends_on('zlib', when='+zlib')
+
+    depends_on('libxt', when='+xpce')
+    depends_on('libx11', when='+xpce')
+    depends_on('libjpeg', when='+xpce')
+    depends_on('libxpm', when='+xpce')
+
+    depends_on('libxft', when='+xpce')
+    depends_on('fontconfig', when='+xpce')
+    depends_on('pkg-config', when='+xpce', type='build')
+
+    conflicts('%intel', msg='Test builds with ICC failed when creating startup image')
+
+    def cmake_args(self):
+        args = []
+
+        def append_switch(variant, cmake_flag):
+            val = 'ON' if variant in self.spec else 'OFF'
+
+            flagdef = '-D' + cmake_flag + ':BOOL=' + val
+            args.append(flagdef)
+
+        append_switch('+gmp', 'USE_GMP')
+        append_switch('+xpce', 'SWIPL_PACKAGES_X')
+        append_switch('+odbc', 'SWIPL_PACKAGES_ODBC')
+
+        # The variants ssl and zlib are implicitly set up by CMake
+
+        return args