libiberty: new package (#8912)

* libiberty: new package

The libiberty.a library from GNU binutils.  Libiberty provides
demangling and support functions for the GNU toolchain.

This package uses the binutils tarfile but only builds the libiberty
subdirectory.  This is useful for other packages that want the
demangling functions without the rest of binutils.

Add variant 'fpic' to compile with -fPIC.

Addresses some issues raised in PR #8806.

* libiberty: change variant name to 'pic'.

Allow libiberty to install the library in lib64 and don't try to copy
it to lib.

1 files changed, 73 insertions, 0 deletions

diff --git a/var/spack/repos/builtin/packages/libiberty/package.py b/var/spack/repos/builtin/packages/libiberty/package.py
new file mode 100644
index 0000000000..d07f966413
--- /dev/null
+++ b/var/spack/repos/builtin/packages/libiberty/package.py
@@ -0,0 +1,73 @@
+##############################################################################
+# 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 *
+
+
+# Libiberty has two homes: binutils and gcc.  This package uses the
+# binutils tarfile but only builds the libiberty subdirectory.  This
+# is useful for other packages that want the demangling functions
+# without the rest of binutils.
+
+class Libiberty(AutotoolsPackage):
+    """The libiberty.a library from GNU binutils.  Libiberty provides
+    demangling and support functions for the GNU toolchain."""
+
+    homepage = "https://www.gnu.org/software/binutils/"
+    url = "https://ftp.gnu.org/gnu/binutils/binutils-2.31.1.tar.xz"
+
+    version('2.31.1', '5b7c9d4ce96f507d95c1b9a255e52418')
+    version('2.30',   'ffc476dd46c96f932875d1b2e27e929f')
+    version('2.29.1', 'acc9cd826edb9954ac7cecb81c727793')
+    version('2.28.1', 'a3bf359889e4b299fce1f4cb919dc7b6')
+
+    variant('pic', default=False,
+            description='Compile with position independent code.')
+
+    # Configure and build just libiberty.
+    configure_directory = 'libiberty'
+
+    # Set default cflags (-g -O2), add -fPIC if requested, and move to
+    # the configure line.
+    def flag_handler(self, name, flags):
+        if name != 'cflags':
+            return (flags, None, None)
+
+        if '-g' not in flags:
+            flags.append('-g')
+
+        for flag in flags:
+            if flag.startswith('-O'):
+                break
+        else:
+            flags.append('-O2')
+
+        if '+pic' in self.spec:
+            flags.append(self.compiler.pic_flag)
+
+        return (None, None, flags)
+
+    def configure_args(self):
+        args = ['--enable-install-libiberty']
+        return args