zstr: new package, update lbann dependency (#22309)

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

@@ -208,6 +208,8 @@ class Lbann(CMakePackage, CudaPackage, ROCmPackage):
     depends_on('onednn cpu_runtime=omp gpu_runtime=none', when='+onednn')
     depends_on('nvshmem', when='+nvshmem')
 
+    depends_on('zstr')
+
     generator = 'Ninja'
     depends_on('ninja', type='build')
 

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

@@ -0,0 +1,30 @@
+# 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 Zstr(Package):
+    """This C++ header-only library enables the use of C++ standard
+       iostreams to access ZLib-compressed streams."""
+
+    homepage = "https://github.com/mateidavid/zstr"
+    url      = "https://github.com/mateidavid/zstr/archive/v1.0.4.tar.gz"
+
+    maintainers = ['bvanessen']
+
+    version('1.0.4', sha256='a594a3a9c192a6d9e93f9585910d41f7ee6791eb7c454d40c922656324b3058e')
+    version('1.0.3', sha256='d42f1b08e4c3a26e3b42433691d32765015cf89f089ae075b1acb819ccba585f')
+    version('1.0.2', sha256='b4c2d72f0f222b72985fc6c2bd2bd9c1fc353d2e4c8c12186fd87229107a442b')
+    version('1.0.1', sha256='e17e67e00ede182504b3165cebd802420770541465d4ba41df1a15bf4c2a63b7')
+    version('1.0.0', sha256='9f4fa8cb0d2cbba03dfe67900c48b6e75c8380d9263a0ac71d795f11e0224b96')
+
+    depends_on('zlib')
+
+    def install(self, spec, prefix):
+        """Make the install targets - Note that this package
+           keeps it's headers in the src directory"""
+        install_tree(join_path(self.stage.source_path, 'src'),
+                     prefix.include)