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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, Xmake Open Source Community.
--
-- @author ruki
-- @file xmake.lua
--
rule("c.build.pcheader")
on_config(function (target, opt)
import("private.action.build.pcheader")
if not pcheader.config(target, "c", opt) then
target:rule_enable("c.build.pcheader", false)
end
end)
before_build(function (target, jobgraph, opt)
if not os.getenv("XMAKE_IN_COMPILE_COMMANDS_PROJECT_GENERATOR") then
import("private.action.build.pcheader").build(target, jobgraph, "c", opt)
end
end, {jobgraph = true})
rule("c++.build.pcheader")
on_config(function (target, opt)
import("private.action.build.pcheader")
if not pcheader.config(target, "cxx", opt) then
target:rule_enable("c++.build.pcheader", false)
end
end)
-- If the current target has a C++ modules file,
-- we can only compile it earlier in the before_prepare stage,
-- because the C++ modules will perform a complete dependency scan of
-- the C++ files in on_prepare and then build the dependency graph.
-- At this time, the pch header file must have already been generated.
before_prepare(function (target, jobgraph, opt)
local has_modules = target:data("cxx.has_modules")
if has_modules and not os.getenv("XMAKE_IN_COMPILE_COMMANDS_PROJECT_GENERATOR") then
import("private.action.build.pcheader").build(target, jobgraph, "cxx", opt)
end
end, {jobgraph = true})
-- To enable parallel compilation across targets
-- without blocking the compilation of other cpp files,
-- we perform this as much as possible during the before_build stage.
--
-- @see: https://github.com/xmake-io/xmake/issues/4167
before_build(function (target, jobgraph, opt)
local has_modules = target:data("cxx.has_modules")
if not has_modules then
import("private.action.build.pcheader").build(target, jobgraph, "cxx", opt)
end
end, {jobgraph = true})
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