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--!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 target.lua
--
-- imports
import("core.base.option")
-- does this flag belong to this tool?
-- @see https://github.com/xmake-io/xmake/issues/3022
--
-- e.g.
-- for all: add_cxxflags("-g")
-- only for clang: add_cxxflags("clang::-stdlib=libc++")
-- only for clang and multiple flags: add_cxxflags("-stdlib=libc++", "-DFOO", {tools = "clang"})
--
function flag_belong_to_tool(target, flag, toolinst, extraconf)
local for_this_tool = true
local flagconf = extraconf and extraconf[flag]
if type(flag) == "string" and flag:find("::", 1, true) then
for_this_tool = false
local splitinfo = flag:split("::", {plain = true})
local toolname = splitinfo[1]
if toolname == toolinst:name() then
flag = splitinfo[2]
for_this_tool = true
end
elseif flagconf and flagconf.tools then
for_this_tool = table.contains(table.wrap(flagconf.tools), toolinst:name())
end
if for_this_tool then
return flag
end
end
-- translate flags in tool
function translate_flags_in_tool(target, flagkind, flags)
local extraconf = target:extraconf(flagkind)
local sourcekind
local linkerkind
if flagkind == "cflags" then
sourcekind = "cc"
elseif flagkind == "cxxflags" or flagkind == "cxflags" then
sourcekind = "cxx"
elseif flagkind == "asflags" then
sourcekind = "as"
elseif flagkind == "cuflags" then
sourcekind = "cu"
elseif flagkind == "ldflags" or flagkind == "shflags" then
-- pass
else
raise("unknown flag kind %s", flagkind)
end
local toolinst = sourcekind and target:compiler(sourcekind) or target:linker()
-- does this flag belong to this tool?
-- @see https://github.com/xmake-io/xmake/issues/3022
--
-- e.g.
-- for all: add_cxxflags("-g")
-- only for clang: add_cxxflags("clang::-stdlib=libc++")
-- only for clang and multiple flags: add_cxxflags("-stdlib=libc++", "-DFOO", {tools = "clang"})
--
local result = {}
for _, flag in ipairs(flags) do
flag = flag_belong_to_tool(target, flag, toolinst, extraconf)
if flag then
table.insert(result, flag)
end
end
return result
end
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