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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 - 2019, TBOOX Open Source Group.
--
-- @author ruki
-- @file find_package.lua
--
-- imports
import("lib.detect.find_path")
import("lib.detect.find_library")
import("lib.detect.pkg_config")
-- find package from the system directories
--
-- @param name the package name
-- @param opt the options, e.g. {verbose = true, version = "1.12.x")
--
function main(name, opt)
-- only support the current host platform and architecture
if opt.plat ~= os.host() or opt.arch ~= os.arch() then
return
end
-- add default search includedirs on pc host
local includedirs = table.wrap(opt.includedirs)
if #includedirs == 0 then
if opt.plat == "linux" or opt.plat == "macosx" then
table.insert(includedirs, "/usr/local/include")
table.insert(includedirs, "/usr/include")
table.insert(includedirs, "/opt/local/include")
table.insert(includedirs, "/opt/include")
end
end
-- add default search linkdirs on pc host
local linkdirs = table.wrap(opt.linkdirs)
if #linkdirs == 0 then
if opt.plat == "linux" or opt.plat == "macosx" then
table.insert(linkdirs, "/usr/local/lib")
table.insert(linkdirs, "/usr/lib")
table.insert(linkdirs, "/opt/local/lib")
table.insert(linkdirs, "/opt/lib")
if opt.plat == "linux" and opt.arch == "x86_64" then
table.insert(linkdirs, "/usr/local/lib/x86_64-linux-gnu")
table.insert(linkdirs, "/usr/lib/x86_64-linux-gnu")
table.insert(linkdirs, "/usr/lib64")
table.insert(linkdirs, "/opt/lib64")
end
end
end
-- attempt to get links from pkg-config
local pkginfo = nil
local version = nil
local links = table.wrap(opt.links)
if #links == 0 then
pkginfo = pkg_config.libinfo(name)
if pkginfo then
links = table.wrap(pkginfo.links)
version = pkginfo.version
end
end
-- uses name as links directly e.g. libname.a
if #links == 0 then
links = table.wrap(name)
end
-- find library
local result = nil
for _, link in ipairs(links) do
local libinfo = find_library(link, linkdirs)
if libinfo then
result = result or {}
result.links = table.join(result.links or {}, libinfo.link)
result.linkdirs = table.join(result.linkdirs or {}, libinfo.linkdir)
end
end
-- find includes
if opt.includes then
for _, include in ipairs(opt.includes) do
local includedir = find_path(include, includedirs)
if includedir then
result = result or {}
result.includedirs = table.join(result.includedirs or {}, includedir)
end
end
for _, include in ipairs({name .. "/" .. name .. ".h", name .. ".h"}) do
local includedir = find_path(include, includedirs)
if includedir then
result = result or {}
result.includedirs = table.join(result.includedirs or {}, includedir)
break
end
end
elseif result and result.links and opt.includedirs then
result.includedirs = opt.includedirs
end
-- not found? only add links
if not result and pkginfo and pkginfo.links then
result = {links = pkginfo.links}
end
-- save version
if result and version then
result.version = version
end
-- ok
return result
end
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