Add support for racket packages (#27564)

- Add variants for various common build flags, including support for both versions of the Racket VM environment.
- Prevent `-j` flags to `make`, which has been known to cause problems with Racket builds.
- Prefer the minimal release to improve install times. Bells and whistles carry their own runtime dependencies and should be installed via `raco`. An enterprising user may even create a `RacketPackage` class to make spack aware of `raco` installed packages.
- Match the official version numbering scheme.

var/spack/repos/builtin/packages/rkt-base/package.py

@@ -0,0 +1,22 @@
+# 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 RktBase(RacketPackage):
+    """Stub package for packages which are currently part of core
+    racket installation (but which may change in the future)."""
+
+    git      = "ssh://git@github.com/racket/racket.git"
+
+    maintainers = ['elfprince13']
+
+    version('8.3', commit='cab83438422bfea0e4bd74bc3e8305e6517cf25f')  # tag='v8.3'
+    depends_on('racket@8.3', type=('build', 'run'), when='@8.3')
+
+    name = 'base'
+    pkgs = True
+    subdirectory = "pkgs/{0}".format(name)

var/spack/repos/builtin/packages/rkt-cext-lib/package.py

@@ -0,0 +1,25 @@
+# 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 RktCextLib(RacketPackage):
+    """Racket library for running a C compiler/linker."""
+
+    git      = "ssh://git@github.com/racket/cext-lib.git"
+
+    maintainers = ['elfprince13']
+
+    version('8.3', commit='cc22e2456df881a9008240d70dd9012ef37395f5')  # tag = 'v8.3'
+
+    depends_on('rkt-base@8.3', type=('build', 'run'), when='@8.3')
+    depends_on('rkt-compiler-lib@8.3', type=('build', 'run'), when='@8.3')
+    depends_on('rkt-dynext-lib@8.3', type=('build', 'run'), when='@8.3')
+    depends_on('rkt-scheme-lib@8.3', type=('build', 'run'), when='@8.3')
+
+    name = 'cext-lib'
+    pkgs = True
+    subdirectory = name

var/spack/repos/builtin/packages/rkt-compiler-lib/package.py

@@ -0,0 +1,25 @@
+# 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 RktCompilerLib(RacketPackage):
+    """Stub package for packages which are currently part of core
+    Racket installation (but which may change in the future)."""
+
+    git      = "ssh://git@github.com/racket/racket.git"
+
+    maintainers = ['elfprince13']
+
+    version('8.3', commit='cab83438422bfea0e4bd74bc3e8305e6517cf25f')  # tag='v8.3'
+    depends_on('rkt-base@8.3', type=('build', 'run'), when='@8.3')
+    depends_on('rkt-scheme-lib@8.3', type=('build', 'run'), when='@8.3')
+    depends_on('rkt-rackunit-lib@8.3', type=('build', 'run'), when='@8.3')
+    depends_on('rkt-zo-lib@1.3', type=('build', 'run'), when='@8.3')
+
+    name = 'compiler-lib'
+    pkgs = True
+    subdirectory = "pkgs/{0}".format(name)

var/spack/repos/builtin/packages/rkt-dynext-lib/package.py

@@ -0,0 +1,21 @@
+# 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 RktDynextLib(RacketPackage):
+    """Racket library for running a C compiler/linker."""
+
+    git      = "ssh://git@github.com/racket/cext-lib.git"
+
+    maintainers = ['elfprince13']
+
+    version('8.3', commit='cc22e2456df881a9008240d70dd9012ef37395f5')  # tag = 'v8.3'
+    depends_on('rkt-base@8.3', type=('build', 'run'), when='@8.3')
+
+    name = 'dynext-lib'
+    pkgs = True
+    subdirectory = name

var/spack/repos/builtin/packages/rkt-rackunit-lib/package.py

@@ -0,0 +1,22 @@
+# 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 RktRackunitLib(RacketPackage):
+    """RackUnit testing framework."""
+
+    git      = "ssh://git@github.com/racket/rackunit.git"
+
+    maintainers = ['elfprince13']
+
+    version('8.3', commit='683237bee2a979c7b1541092922fb51a75ea8ca9')  # tag='v8.3'
+    depends_on('rkt-base@8.3:', type=('build', 'run'), when='@8.3')
+    depends_on('rkt-testing-util-lib@8.3', type=('build', 'run'), when='@8.3')
+
+    name = 'rackunit-lib'
+    pkgs = True
+    subdirectory = name

var/spack/repos/builtin/packages/rkt-scheme-lib/package.py

@@ -0,0 +1,20 @@
+# 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 RktSchemeLib(RacketPackage):
+    """Legacy Scheme Library."""
+
+    git      = "ssh://git@github.com/racket/scheme-lib.git"
+
+    maintainers = ['elfprince13']
+
+    version('8.3', commit='a36e729680818712820ee5269f5208c3c0715a6a')  # tag='v8.3'
+    depends_on('rkt-base@8.3', type=('build', 'run'), when='@8.3')
+
+    name = 'scheme-lib'
+    pkgs = True

var/spack/repos/builtin/packages/rkt-testing-util-lib/package.py

@@ -0,0 +1,21 @@
+# 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 RktTestingUtilLib(RacketPackage):
+    """Utilities for interoperating between different testing libraries."""
+
+    git      = "ssh://git@github.com/racket/rackunit.git"
+
+    maintainers = ['elfprince13']
+
+    version('8.3', commit='683237bee2a979c7b1541092922fb51a75ea8ca9')  # tag='v8.3'
+    depends_on('rkt-base@8.3:', type=('build', 'run'), when='@8.3')
+
+    name = 'testing-util-lib'
+    pkgs = True
+    subdirectory = name

var/spack/repos/builtin/packages/rkt-zo-lib/package.py

@@ -0,0 +1,21 @@
+# 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 RktZoLib(RacketPackage):
+    """Libraries for handling zo files."""
+
+    git      = "ssh://git@github.com/racket/racket.git"
+
+    maintainers = ['elfprince13']
+
+    version('1.3', commit='cab83438422bfea0e4bd74bc3e8305e6517cf25f')  # tag='v1.3'
+    depends_on('rkt-base@8.3:', type=('build', 'run'), when='@1.3')
+
+    name = 'zo-lib'
+    pkgs = True
+    subdirectory = "pkgs/{0}".format(name)