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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 check_macros.lua
--
-- check macros and add macro definition
--
-- e.g.
--
-- check_macros("HAS_GCC", "__GNUC__")
-- check_macros("NO_GCC", "__GNUC__", {defined = false})
-- check_macros("HAS_CXX20", "__cplusplus >= 202002L", {languages = "c++20"})
--
function check_macros(definition, macros, opt)
opt = opt or {}
local optname = opt.name or ("__" .. definition)
local snippets = {}
interp_save_scope()
option(optname)
set_showmenu(false)
for _, macro in ipairs(macros) do
if macro:find(' ', 1, true) then
table.insert(snippets, ([[
#if %s
#else
#error %s is not satisfied!
#endif
]]):format(macro, macro))
else
table.insert(snippets, ([[
#if%s %s
#else
#error %s is not defined!
#endif
]]):format(opt.defined ~= false and "def" or "ndef", macro, macro))
end
end
if opt.languages and opt.languages:startswith("c++") then
add_cxxsnippets(definition, table.concat(snippets, "\n"))
else
add_csnippets(definition, table.concat(snippets, "\n"))
end
add_defines(definition)
if opt.languages then
set_languages(opt.languages)
end
if opt.defines then
add_defines(opt.defines)
end
if opt.cflags then
add_cflags(opt.cflags)
end
if opt.cxflags then
add_cxflags(opt.cxflags)
end
if opt.cxxflags then
add_cxxflags(opt.cxxflags)
end
if opt.languages and opt.languages:startswith("c++") then
add_cxxincludes(opt.includes)
else
add_cincludes(opt.includes)
end
option_end()
interp_restore_scope()
add_options(optname)
end
-- check macros and add macro definition to the configuration files
--
-- e.g.
-- configvar_check_macros("HAS_GCC", "__GNUC__")
-- configvar_check_macros("NO_GCC", "__GNUC__", {defined = false})
-- configvar_check_macros("HAS_CXX20", "__cplusplus >= 202002L", {languages = "c++20"})
function configvar_check_macros(definition, macros, opt)
opt = opt or {}
local optname = opt.name or ("__" .. definition)
local defname, defval = table.unpack(definition:split('='))
local snippets = {}
interp_save_scope()
option(optname)
set_showmenu(false)
for _, macro in ipairs(macros) do
if macro:find(' ', 1, true) then
table.insert(snippets, ([[
#if %s
#else
#error %s is not satisfied!
#endif
]]):format(macro, macro))
else
table.insert(snippets, ([[
#if%s %s
#else
#error %s is not defined!
#endif
]]):format(opt.defined ~= false and "def" or "ndef", macro, macro))
end
end
if opt.languages and opt.languages:startswith("c++") then
add_cxxsnippets(definition, table.concat(snippets, "\n"))
else
add_csnippets(definition, table.concat(snippets, "\n"))
end
if opt.default == nil then
set_configvar(defname, defval or 1, {quote = opt.quote})
end
if opt.languages then
set_languages(opt.languages)
end
if opt.defines then
add_defines(opt.defines)
end
if opt.cflags then
add_cflags(opt.cflags)
end
if opt.cxflags then
add_cxflags(opt.cxflags)
end
if opt.cxxflags then
add_cxxflags(opt.cxxflags)
end
if opt.includes then
if opt.languages and opt.languages:startswith("c++") then
add_cxxincludes(opt.includes)
else
add_cincludes(opt.includes)
end
end
option_end()
interp_restore_scope()
if opt.default == nil then
add_options(optname)
else
set_configvar(defname, has_config(optname) and (defval or 1) or opt.default, {quote = opt.quote})
end
end
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