1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
--!A cross-platform build utility based on Lua
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- Copyright (C) 2015-present, Xmake Open Source Community.
--
-- @author ruki
-- @file cfeatures.lua
--
-- set features
function _set(feature, condition)
_g.features = _g.features or {}
_g.features[feature] = condition
end
-- get features
function main()
-- init conditions
local gcc_minver = "(__GNUC__ * 100 + __GNUC_MINOR__) >= 304"
local gcc10_c17 = "(__GNUC__ * 100 + __GNUC_MINOR__) >= 1000 && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201710L"
local gcc46_c11 = "(__GNUC__ * 100 + __GNUC_MINOR__) >= 406 && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201000L"
local gcc34_c99 = "(__GNUC__ * 100 + __GNUC_MINOR__) >= 304 && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L"
local gcc_c90 = gcc_minver
-- set language standard supports
_set("c_std_89", gcc46_c90)
_set("c_std_99", gcc34_c99)
_set("c_std_11", gcc46_c11)
_set("c_std_17", gcc46_c17)
-- set features
_set("c_static_assert", gcc46_c11) -- GNU 4.7 correctly sets __STDC_VERSION__ to 201112L, but GNU 4.6 sets it to 201000L
_set("c_restrict", gcc34_c99)
_set("c_variadic_macros", gcc34_c99)
_set("c_function_prototypes", gcc_c90)
-- get features
return _g.features
end
|
