qucs: add new package (#23849)

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

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

@@ -0,0 +1,63 @@
+# 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 *
+import os
+
+
+class Qucs(AutotoolsPackage):
+    """QUCS - Quite Universal Circuit Simulator
+
+    Qucs is an integrated circuit simulator which means you are able to
+    setup a circuit with a graphical user interface (GUI) and simulate
+    the large-signal, small-signal and noise behaviour of the circuit.
+    After that simulation has finished you can view the simulation results
+    on a presentation page or window.
+    """
+
+    homepage = "http://qucs.sourceforge.net/"
+    url      = "https://sourceforge.net/projects/qucs/files/qucs/0.0.19/qucs-0.0.19.tar.gz"
+    git      = "https://git.code.sf.net/p/qucs/git"
+
+    version('master', branch='master')
+    version('0.0.19', sha256='45c6434fde24c533e63550675ac21cdbd3cc6cbba29b82a1dc3f36e7dd4b3b3e')
+    version('0.0.18', sha256='3609a18b57485dc9f19886ac6694667f3251702175bd1cbbbea37981b2c482a7')
+
+    # Can use external simulators:
+    variant(
+        'simulators', default='qucs', multi=True,
+        values=('qucs', 'ngspice', 'xyce'),
+        description='Circuits simulators (builtin qucsator and external ngspice, xyce)'
+    )
+
+    depends_on('flex@2.5.9:',     type='build')
+    depends_on('bison@2.5:',      type='build')
+    depends_on('pkgconfig',       type='build')
+
+    depends_on("autoconf@2.64:",  type='build')
+    depends_on("automake@1.7.0:", type='build')
+    depends_on("libtool",         type='build')
+    depends_on("m4",              type='build')
+
+    depends_on('adms', when='@0.0.19:')
+    depends_on('qt@4.8.5:4.8.7')
+    depends_on('gperf@3.0.1:')
+
+    # Simulators can be qucsator, the Circuit simulator of the Qucs project
+    # from https://github.com/Qucs/qucsator, or they can also be provided by
+    # ngspice and xyce.
+    # See https://qucs-help.readthedocs.io/en/spice4qucs/BasSim.html
+    depends_on('ngspice build=bin', type='run', when='simulators=ngspice')
+    depends_on('xyce',    type='run', when='simulators=xyce')
+
+    def autoreconf(self, spec, prefix):
+        sh = which('sh')
+        if os.path.exists('bootstrap'):
+            sh('./bootstrap')
+        else:
+            sh('./autogen.sh')
+
+    def configure_args(self):
+        args = ['--disable-doc']
+        return args