move has_flags.lua

1 files changed, 52 insertions, 0 deletions

diff --git a/xmake/modules/core/tools/gcc/cfeatures.lua b/xmake/modules/core/tools/gcc/cfeatures.lua
new file mode 100644
index 000000000..b9ebaa036
--- /dev/null
+++ b/xmake/modules/core/tools/gcc/cfeatures.lua
@@ -0,0 +1,52 @@
+--!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, TBOOX Open Source Group.
+--
+-- @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
+