New package: FastTransforms (#19160)

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

@@ -0,0 +1,40 @@
+# Copyright 2013-2020 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 Fasttransforms(MakefilePackage):
+    """FastTransforms provides computational kernels and driver routines for
+    orthogonal polynomial transforms. The univariate algorithms have a runtime
+    complexity of O(n log n), while the multivariate algorithms are 2-normwise
+    backward stable with a runtime complexity of O(nd+1), where n is the
+    polynomial degree and d is the spatial dimension of the problem."""
+
+    homepage = "https://github.com/MikaelSlevinsky/FastTransforms"
+    url      = "https://github.com/MikaelSlevinsky/FastTransforms/archive/v0.3.4.tar.gz"
+
+    version('0.3.4', sha256='a5c8b5aedbdb40218521d061a7df65ef32ce153d4e19d232957db7e3e63c7e9b')
+
+    variant('quadmath', default=False, description="Support 128-bit floats")
+
+    depends_on('blas')
+    depends_on('fftw')
+    depends_on('mpfr')
+
+    def build(self, spec, prefix):
+        makeargs = ["CC=cc"]
+        if 'openblas' in spec:
+            makeargs += ["FT_BLAS=openblas"]
+        if 'quadmath' in spec:
+            makeargs += ["FT_QUADMATH=1"]
+        make('assembly', *makeargs)
+        make('lib', *makeargs)
+
+    def install(self, spec, prefix):
+        mkdirp(prefix.include)
+        install(join_path('src', '*.h'), prefix.include)
+        mkdirp(prefix.lib)
+        install('libfasttransforms.' + dso_suffix, prefix.lib)