Improve to fetch packages for cross-compilation

xmake/core/base/private/is_cross.lua

@@ -23,6 +23,8 @@ local os = require("base/os")
 
 -- is cross-compilation?
 function is_cross(plat, arch)
+    plat = plat or os.subhost()
+    arch = arch or os.subarch()
     if os.host() == "windows" then
         local host_arch = os.arch()
         if plat == "windows" then

xmake/core/package/package.lua

@@ -1731,10 +1731,13 @@ function _instance:_fetch_library(opt)
     local fetchinfo
     local on_fetch = self:script("fetch")
     if on_fetch then
-        fetchinfo = on_fetch(self, {force = opt.force,
-                                    system = opt.system,
-                                    external = opt.external,
-                                    require_version = opt.require_version})
+        -- we cannot fetch it from system if it's cross-compilation package
+        if not opt.system or (opt.system and not self:is_cross()) then
+            fetchinfo = on_fetch(self, {force = opt.force,
+                                        system = opt.system,
+                                        external = opt.external,
+                                        require_version = opt.require_version})
+        end
         if fetchinfo and opt.require_version and opt.require_version:find(".", 1, true) then
             local version = fetchinfo.version
             if not (version and (version == opt.require_version or semver.satisfies(version, opt.require_version))) then
@@ -1947,8 +1950,8 @@ function _instance:fetch(opt)
             end
         end
 
-        -- fetch it from the system and external package sources (disabled for cross-compilation)
-        if not fetchinfo and system ~= false and not self:is_cross() then
+        -- fetch it from the system and external package sources
+        if not fetchinfo and system ~= false then
             fetchinfo = self:_fetch_library({system = true, require_version = require_ver, external = external, force = opt.force})
             if fetchinfo then
                 is_system = true

xmake/core/sandbox/modules/import/private/core/base/is_cross.lua

@@ -0,0 +1,23 @@
+--!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        is_cross.lua
+--
+
+return require("base/private/is_cross")
+
+

xmake/modules/package/manager/apt/find_package.lua

@@ -23,6 +23,7 @@ import("core.base.option")
 import("core.project.config")
 import("core.project.target")
 import("lib.detect.find_tool")
+import("private.core.base.is_cross")
 import("package.manager.pkgconfig.find_package", {alias = "find_package_from_pkgconfig"})
 
 -- find package
@@ -129,19 +130,14 @@ end
 -- @param opt   the options, e.g. {verbose = true, version = "1.12.0")
 --
 function main(name, opt)
-
-    -- check
     opt = opt or {}
-    if not is_host(opt.plat) or os.arch() ~= opt.arch then
+    if is_cross(opt.plat, opt.arch) then
         return
     end
 
-    -- find dpkg
     local dpkg = find_tool("dpkg")
     if not dpkg then
         return
     end
-
-    -- find package
     return _find_package(dpkg, name, opt)
 end

xmake/modules/package/manager/brew/find_package.lua

@@ -25,6 +25,7 @@ import("lib.detect.find_path")
 import("lib.detect.pkgconfig")
 import("core.project.target")
 import("package.manager.find_package")
+import("private.core.base.is_cross")
 
 -- get the root directory of the brew packages
 function _brew_pkg_rootdir()
@@ -92,9 +93,12 @@ end
 -- @param opt   the options, e.g. {verbose = true, version = "1.12.x")
 --
 function main(name, opt)
+    opt = opt or {}
+    if is_cross(opt.plat, opt.arch) then
+        return
+    end
 
     -- find the prefix directory of brew
-    opt = opt or {}
     local brew_pkg_rootdir = _brew_pkg_rootdir()
     if not brew_pkg_rootdir then
         return

xmake/modules/package/manager/find_package.lua

@@ -23,6 +23,7 @@ import("core.base.semver")
 import("core.base.option")
 import("core.project.config")
 import("lib.detect.find_tool")
+import("private.core.base.is_cross")
 
 -- Is the current version matched?
 function _is_match_version(current_version, require_version)
@@ -53,37 +54,23 @@ function _find_package_with_builtin_rule(package_name, opt)
 
     -- find system package if be not disabled
     if opt.system ~= false then
-
-        -- find it from homebrew
-        if not is_host("windows") then
+        local plat = opt.plat
+        local arch = opt.arch
+        local find_from_host = not is_cross(plat, arch)
+        if find_from_host and not is_host("windows") then
             table.insert(managers, "brew")
         end
-
-        -- find it from vcpkg (support multi-platforms/architectures)
+        -- vcpkg/conan support multi-platforms/architectures
         table.insert(managers, "vcpkg")
-
-        -- find it from conan (support multi-platforms/architectures)
         table.insert(managers, "conan")
-
-        -- only support the current sub-host platform and sub-architecture, e.g. linux, macosx, or msys (subsystem)
-        local plat = opt.plat
-        local arch = opt.arch
-        if plat == os.subhost() and arch == os.subarch() then
-
-            -- find it from pkg-config
+        if find_from_host then
             table.insert(managers, "pkgconfig")
-
-            -- find it from pacman
             if is_subhost("linux", "msys") and plat ~= "windows" and find_tool("pacman") then
                 table.insert(managers, "pacman")
             end
-
-            -- find it from portage
             if is_subhost("linux", "msys") and plat ~= "windows" and find_tool("emerge") then
                 table.insert(managers, "portage")
             end
-
-            -- find it from system
             table.insert(managers, "system")
         end
     end

xmake/modules/package/manager/pacman/find_package.lua

@@ -22,6 +22,7 @@
 import("core.base.option")
 import("core.project.target")
 import("lib.detect.find_tool")
+import("private.core.base.is_cross")
 import("package.manager.pkgconfig.find_package", {alias = "find_package_from_pkgconfig"})
 
 -- get result from list of file inside pacman package
@@ -51,7 +52,7 @@ function _find_package_from_list(list, name, pacman, opt)
         if line:find("/include/", 1, true) and (line:endswith(".h") or line:endswith(".hpp")) then
             if not line:startswith("/usr/include/") then
                 local hpath = line
-                if is_subhost("msys") and opt.plat == "mingw" then 
+                if is_subhost("msys") and opt.plat == "mingw" then
                     hpath = path.join(pathtomsys, line)
                     local basehpath = path.join(pathtomsys, msystem .. "/include")
                     table.insert(result.includedirs, basehpath)
@@ -103,9 +104,12 @@ end
 -- @param opt   the options, e.g. {verbose = true, version = "1.12.x")
 --
 function main(name, opt)
+    opt = opt or {}
+    if is_cross(opt.plat, opt.arch) then
+        return
+    end
 
     -- find pacman
-    opt = opt or {}
     local pacman = find_tool("pacman")
     if not pacman then
         return
@@ -125,13 +129,13 @@ function main(name, opt)
             name = prefix .. arch .. name
         end
     end
-    
+
     -- get package files list
     list = name and try { function() return os.iorunv(pacman.program, {"-Q", "-l", name}) end }
     if not list then
         return
     end
-    
+
     -- parse package files list
     local linkdirs = {}
     local pkgconfig_files = {}
@@ -179,6 +183,5 @@ function main(name, opt)
         -- if there is no .pc, we parse the package content to obtain the data we want
         result = _find_package_from_list(list, name, pacman, opt)
     end
-
     return result
 end

xmake/modules/package/manager/portage/find_package.lua

@@ -22,6 +22,7 @@
 import("core.base.option")
 import("lib.detect.find_file")
 import("lib.detect.find_tool")
+import("private.core.base.is_cross")
 import("package.manager.pkgconfig.find_package", {alias = "find_package_from_pkgconfig"})
 
 -- find package from the system directories
@@ -30,9 +31,10 @@ import("package.manager.pkgconfig.find_package", {alias = "find_package_from_pkg
 -- @param opt   the options, e.g. {verbose = true, version = "1.12.x")
 --
 function main(name, opt)
-
-    -- init options
     opt = opt or {}
+    if is_cross(opt.plat, opt.arch) then
+        return
+    end
 
     -- for msys2/mingw? mingw-w64-[i686|x86_64]-xxx
     if opt.plat == "mingw" then

xmake/modules/package/manager/system/find_package.lua

@@ -20,6 +20,7 @@
 
 -- imports
 import("core.language.language")
+import("private.core.base.is_cross")
 import("lib.detect.check_cxsnippets")
 
 -- get package items
@@ -57,8 +58,11 @@ end
 --
 function main(name, opt)
     opt = opt or {}
-    local configs = opt.configs or {}
+    if is_cross(opt.plat, opt.arch) then
+        return
+    end
 
+    local configs = opt.configs or {}
     local items = _get_package_items()
     local snippet_configs = {}
     for _, name in ipairs(items) do

xmake/modules/package/manager/zypper/find_package.lua

@@ -23,6 +23,7 @@ import("core.base.option")
 import("core.project.config")
 import("core.project.target")
 import("lib.detect.find_tool")
+import("private.core.base.is_cross")
 import("package.manager.pkgconfig.find_package", { alias = "find_package_from_pkgconfig" })
 
 -- find package
@@ -137,7 +138,7 @@ end
 --
 function main(name, opt)
     opt = opt or {}
-    if not is_host(opt.plat) or os.arch() ~= opt.arch then
+    if is_cross(opt.plat, opt.arch) then
         return
     end
     local rpm = find_tool("rpm")