new package: sfcgal (#12624)

* new package: sfcgal

* improve meta information

* add variant and optional dependencies

* add cmake options for building with viewer

* improve dependency type

* improve viewer variant

* improve viewer variant

* specify dependency versions

* add ref

* remove depricated variant

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

@@ -0,0 +1,32 @@
+# 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 Sfcgal(CMakePackage):
+    """
+    SFCGAL is a C++ wrapper library around CGAL with the aim of supporting
+    ISO 19107:2013 and OGC Simple Features Access 1.2 for 3D operations. SFCGAL
+    provides standard compliant geometry types and operations, that can be
+    accessed from its C or C++ APIs.
+    """
+
+    homepage = "http://www.sfcgal.org/"
+    url      = "https://github.com/Oslandia/SFCGAL/archive/v1.3.7.tar.gz"
+
+    version('1.3.7', sha256='30ea1af26cb2f572c628aae08dd1953d80a69d15e1cac225390904d91fce031b')
+
+    # Ref: http://oslandia.github.io/SFCGAL/installation.html
+    depends_on('cgal@4.3 +core')
+    depends_on('boost@1.54.0:1.69.0')
+    depends_on('mpfr@2.2.1:')
+    depends_on('gmp@4.2:')
+
+    def cmake_args(self):
+        # It seems viewer is discontinued as of v1.3.0
+        # https://github.com/Oslandia/SFCGAL/releases/tag/v1.3.0
+        # Also, see https://github.com/Oslandia/SFCGAL-viewer
+        return ['-DSFCGAL_BUILD_VIEWER=OFF']