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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 xmake.lua
--
-- define rule: c++.build.modules
rule("c++.build.modules")
set_extensions(".mpp", ".mxx", ".cppm", ".ixx")
after_load(function (target)
-- we disable to build across targets in parallel, because the source files may depend on other target modules
-- @see https://github.com/xmake-io/xmake/issues/1858
local target_with_modules
for _, dep in ipairs(target:orderdeps()) do
local sourcebatches = dep:sourcebatches()
if sourcebatches and sourcebatches["c++.build.modules"] then
target_with_modules = true
break
end
end
if target_with_modules then
-- @note this will cause cross-parallel builds to be disabled for all sub-dependent targets,
-- even if some sub-targets do not contain C++ modules.
--
-- maybe we will have a more fine-grained configuration strategy to disable it in the future.
target:set("policy", "build.across_targets_in_parallel", false)
local _, toolname = target:tool("cxx")
if toolname:find("clang", 1, true) then
import("build_modules.clang").load_parent(target, opt)
elseif toolname:find("gcc", 1, true) then
import("build_modules.gcc").load_parent(target, opt)
elseif toolname == "cl" then
import("build_modules.msvc").load_parent(target, opt)
else
raise("compiler(%s): does not support c++ module!", toolname)
end
end
end)
before_build_files(function (target, batchjobs, sourcebatch, opt)
local _, toolname = target:tool("cxx")
if toolname:find("clang", 1, true) then
import("build_modules.clang").build_with_batchjobs(target, batchjobs, sourcebatch, opt)
elseif toolname:find("gcc", 1, true) then
import("build_modules.gcc").build_with_batchjobs(target, batchjobs, sourcebatch, opt)
elseif toolname == "cl" then
import("build_modules.msvc").build_with_batchjobs(target, batchjobs, sourcebatch, opt)
else
raise("compiler(%s): does not support c++ module!", toolname)
end
end, {batch = true})
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