baurmc: add new package (#30245)

Co-authored-by: Massimiliano Culpo <massimiliano.culpo@gmail.com>

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

@@ -0,0 +1,43 @@
+# Copyright 2013-2022 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)
+
+import os
+
+from spack import *
+
+
+class Baurmc(AutotoolsPackage):
+    """Baur's Monte Carlo package for simulating W+ gamma production at hadron
+    colliders provides full electroweak calculation upto O(alpha) and contains
+    higher order QCD corrections as well."""
+
+    homepage = "https://twiki.cern.ch/twiki/bin/view/Sandbox/BaurMCInteface"
+    url      = "http://lcgpackages.web.cern.ch/lcgpackages/tarFiles/sources/MCGeneratorsTarFiles/baurmc-1.0-src.tgz"
+
+    tags = ['hep']
+
+    maintainers = ['vvolkl']
+
+    version('1.0', sha256='de5027ed2e66028bed890760bee9d869e1e330ac7f7112ee5cb25868cea5c35b')
+
+    @property
+    def configure_directory(self):
+        return os.path.join(self.stage.source_path, str(self.spec.version))
+
+    def patch(self):
+        filter_file('FC=g77',
+                    'FC=gfortran',
+                    str(self.spec.version)  + '/configure',
+                    string=True)
+
+    def configure_args(self):
+        return [
+            '--userfflags=-fno-automatic',
+            '--enable-shared'
+        ]
+
+    def install(self, spec, prefix):
+        build_libdir = os.path.join(str(spec.version), "lib")
+        install_tree(build_libdir, self.prefix.lib)