ltrace: create new package (#7641)

* ltrace: create new package

* Update package.py

* Update package.py

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

@@ -0,0 +1,38 @@
+##############################################################################
+# Copyright (c) 2013-2018, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/spack/spack
+# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+class Ltrace(AutotoolsPackage):
+    """Ltrace intercepts and records dynamic library calls which are called
+    by an executed process and the signals received by that process. It
+    can also intercept and print the system calls executed by the program."""
+
+    homepage = "https://www.ltrace.org"
+    url      = "https://www.ltrace.org/ltrace_0.7.3.orig.tar.bz2"
+
+    version('0.7.3', 'b3dd199af8f18637f7d4ef97fdfb9d14')
+
+    conflicts('platform=darwin', msg='ltrace runs only on Linux.')