SConsopts revision 13737:78c21fae6047 
1# Copyright 2018 Google, Inc.
2#
3# Redistribution and use in source and binary forms, with or without
4# modification, are permitted provided that the following conditions are
5# met: redistributions of source code must retain the above copyright
6# notice, this list of conditions and the following disclaimer;
7# redistributions in binary form must reproduce the above copyright
8# notice, this list of conditions and the following disclaimer in the
9# documentation and/or other materials provided with the distribution;
10# neither the name of the copyright holders nor the names of its
11# contributors may be used to endorse or promote products derived from
12# this software without specific prior written permission.
13#
14# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
18# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25#
26# Authors: Gabe Black
27
28Import('*')
29
30from m5.util import compareVersions
31from m5.util.terminal import termcap
32
33def use_systemc_check(env, warn=False):
34    if ('GCC_VERSION' in env and
35            compareVersions(env['GCC_VERSION'], '5.0') < 0):
36        if warn:
37            print(termcap.Yellow + termcap.Bold +
38                  'Warning: Systemc may not work on gcc versions less '
39                  'than 5.0.' + termcap.Normal)
40        return False
41    elif env['PLATFORM'] == 'darwin':
42        if warn:
43            print(termcap.Yellow + termcap.Bold +
44                  'Warning: Systemc may not work on Mac OS.' + termcap.Normal)
45        return False
46    return True
47
48main.AddMethod(use_systemc_check, 'UseSystemcCheck')
49
50sticky_vars.AddVariables(
51    BoolVariable('USE_SYSTEMC', 'Enable SystemC API support',
52                 main.UseSystemcCheck())
53    )
54
55export_vars.append('USE_SYSTEMC')
56