Merge pull request #7311 from xmake-io/xcode

Improve Xcode toolchain

9 files changed, 145 insertions, 293 deletions

diff --git a/xmake/toolchains/xcode/check.lua b/xmake/toolchains/xcode/check.lua
index 5797170f5..b73ea426a 100644
--- a/xmake/toolchains/xcode/check.lua
+++ b/xmake/toolchains/xcode/check.lua
@@ -22,6 +22,7 @@
 import("core.base.option")
 import("core.project.config")
 import("detect.sdks.find_xcode")
+import("private.utils.toolchain", {alias = "toolchain_utils"})
 import("private.utils.executable_path")
 import("private.tools.codesign")
 
@@ -32,8 +33,9 @@ function _show_checkinfo(toolchain, xcode, xcode_sdkver, target_minver)
         if xcode_sdkver then
             table.insert(extras, "sdk: " .. xcode_sdkver)
         end
-        if target_minver then
-            table.insert(extras, "target: " .. target_minver)
+        local target_triple = toolchain_utils.get_xcode_target_triple(toolchain)
+        if target_triple then
+            table.insert(extras, target_triple)
         end
         local extra = ""
         if #extras > 0 then
diff --git a/xmake/toolchains/xcode/load.lua b/xmake/toolchains/xcode/load.lua
new file mode 100644
index 000000000..4dd0241db
--- /dev/null
+++ b/xmake/toolchains/xcode/load.lua
@@ -0,0 +1,140 @@
+--!A cross-toolchain 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        load.lua
+--
+-- imports
+import("private.utils.toolchain", {alias = "toolchain_utils"})
+
+-- set toolset programs from xcode toolchain bindir/arch/appledev
+function _set_toolset(toolchain, appledev)
+
+    local bindir = toolchain:bindir()
+    local arch = toolchain:arch()
+    local xc_clang          = bindir and path.join(bindir, "clang") or "clang"
+    local xc_clangxx        = bindir and path.join(bindir, "clang++") or "clang++"
+    local xc_ar             = bindir and path.join(bindir, "ar") or "ar"
+    local xc_strip          = bindir and path.join(bindir, "strip") or "strip"
+    local xc_swift_frontend = bindir and path.join(bindir, "swift-frontend") or "swift-frontend"
+    local xc_swiftc         = bindir and path.join(bindir, "swiftc") or "swiftc"
+    local xc_dsymutil       = bindir and path.join(bindir, "dsymutil") or "dsymutil"
+
+    toolchain:set("toolset", "cc", xc_clang)
+    toolchain:set("toolset", "cxx", xc_clangxx, xc_clang)
+    toolchain:set("toolset", "ld", xc_clangxx, xc_clang)
+    toolchain:set("toolset", "sh", xc_clangxx, xc_clang)
+    toolchain:set("toolset", "ar", xc_ar)
+    toolchain:set("toolset", "strip", xc_strip)
+    toolchain:set("toolset", "dsymutil", xc_dsymutil, "dsymutil")
+    toolchain:set("toolset", "mm", xc_clang)
+    toolchain:set("toolset", "mxx", xc_clangxx, xc_clang)
+    toolchain:set("toolset", "sc", xc_swift_frontend, "swift_frontend", xc_swiftc, "swiftc")
+    toolchain:set("toolset", "scld", xc_swiftc, "swiftc")
+    toolchain:set("toolset", "scsh", xc_swiftc, "swiftc")
+    toolchain:set("toolset", "scar", xc_swiftc, "swiftc")
+    if arch then
+        toolchain:set("toolset", "cpp", xc_clang .. " -arch " .. arch .. " -E")
+    end
+    if toolchain:is_plat("macosx") then
+        toolchain:set("toolset", "as", xc_clang)
+    elseif appledev == "simulator" or appledev == "catalyst" then
+        toolchain:set("toolset", "as", xc_clang)
+    else
+        toolchain:set("toolset", "as", path.join(os.programdir(), "scripts", "gas-preprocessor.pl " .. xc_clang))
+    end
+end
+
+-- add platform-independent flags for xcode toolchain
+function _add_common_flags(toolchain, xcode_sysroot)
+
+    -- init target triple flags
+    local targetflag = {"-target", toolchain_utils.get_xcode_target_triple(toolchain)}
+
+    -- init flags for c/c++
+    toolchain:add("cxflags", targetflag, "-isysroot", xcode_sysroot)
+    if toolchain:is_plat("macosx") then
+        toolchain:add("ldflags", targetflag, "-isysroot", xcode_sysroot, "-lz")
+        toolchain:add("shflags", targetflag, "-isysroot", xcode_sysroot, "-lz")
+    else
+        toolchain:add("ldflags", targetflag, "-isysroot", xcode_sysroot, "-ObjC", "-fobjc-link-runtime")
+        toolchain:add("shflags", targetflag, "-isysroot", xcode_sysroot, "-ObjC", "-fobjc-link-runtime")
+    end
+
+    -- init flags for objc/c++
+    toolchain:add("mxflags", targetflag, "-isysroot", xcode_sysroot)
+
+    -- we can use `add_mxflags("-fno-objc-arc")` to override it in xmake.lua
+    toolchain:add("mxflags", "-fobjc-arc")
+
+    -- init flags for asm
+    toolchain:add("asflags", targetflag, "-isysroot", xcode_sysroot)
+
+    -- init flags for swift
+    toolchain:add("scflags", {"-sdk", xcode_sysroot}, targetflag)
+    toolchain:add("scshflags", {"-sdk", xcode_sysroot}, targetflag, "-emit-library")
+    toolchain:add("scarflags", {"-sdk", xcode_sysroot}, targetflag, "-emit-library", "-static")
+    toolchain:add("scldflags", {"-sdk", xcode_sysroot}, targetflag, "-emit-executable")
+end
+
+-- add extra headers/libs/frameworks for catalyst (macosx + appledev=catalyst)
+function _add_catalyst_support(toolchain, xcode_sysroot)
+
+    toolchain:add("cxflags", {"-I", path.join(xcode_sysroot, "System/iOSSupport/usr/include")})
+    toolchain:add("mxflags", {"-I", path.join(xcode_sysroot, "System/iOSSupport/usr/include")})
+
+    toolchain:add("asflags", {"-I", path.join(xcode_sysroot, "System/iOSSupport/usr/include")})
+    toolchain:add("ldflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
+    toolchain:add("shflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
+
+    toolchain:add("scflags", {"-I", path.join(xcode_sysroot, "System/iOSSupport/usr/include")})
+    toolchain:add("scldflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
+    toolchain:add("scshflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
+    toolchain:add("scarflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
+
+    toolchain:add("cxflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
+    toolchain:add("mxflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
+
+    toolchain:add("asflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
+    toolchain:add("ldflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
+    toolchain:add("shflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
+
+    toolchain:add("scflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
+    toolchain:add("scshflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
+    toolchain:add("scarflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
+    toolchain:add("scldflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
+end
+
+-- main entry
+function main(toolchain)
+
+    local appledev = toolchain:config("appledev")
+    local xcode_sysroot = toolchain:config("xcode_sysroot")
+    if toolchain:is_plat("macosx") then
+        assert(appledev ~= "simulator")
+    end
+
+    -- init toolset
+    _set_toolset(toolchain, appledev)
+
+    -- init flags
+    _add_common_flags(toolchain, xcode_sysroot)
+
+    -- init extra flags for catalyst
+    if toolchain:is_plat("macosx") and xcode_sysroot and appledev == "catalyst" then
+        _add_catalyst_support(toolchain, xcode_sysroot)
+    end
+end
diff --git a/xmake/toolchains/xcode/load_appletvos.lua b/xmake/toolchains/xcode/load_appletvos.lua
deleted file mode 100644
index cc3382a06..000000000
--- a/xmake/toolchains/xcode/load_appletvos.lua
+++ /dev/null
@@ -1,26 +0,0 @@
---!A cross-toolchain 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        load_appletvos.lua
---
-
-import("load_platform")
-
-function main(toolchain)
-    load_platform(toolchain, "tvos")
-end
-
diff --git a/xmake/toolchains/xcode/load_applexros.lua b/xmake/toolchains/xcode/load_applexros.lua
deleted file mode 100644
index 497c5024c..000000000
--- a/xmake/toolchains/xcode/load_applexros.lua
+++ /dev/null
@@ -1,26 +0,0 @@
---!A cross-toolchain 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        load_applexros.lua
---
-
-import("load_platform")
-
-function main(toolchain)
-    load_platform(toolchain, "xros")
-end
-
diff --git a/xmake/toolchains/xcode/load_iphoneos.lua b/xmake/toolchains/xcode/load_iphoneos.lua
deleted file mode 100644
index 7c7df157a..000000000
--- a/xmake/toolchains/xcode/load_iphoneos.lua
+++ /dev/null
@@ -1,25 +0,0 @@
---!A cross-toolchain 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        load_iphoneos.lua
---
-
-import("load_platform")
-
-function main(toolchain)
-    load_platform(toolchain, "ios")
-end
diff --git a/xmake/toolchains/xcode/load_macosx.lua b/xmake/toolchains/xcode/load_macosx.lua
deleted file mode 100644
index ff484736b..000000000
--- a/xmake/toolchains/xcode/load_macosx.lua
+++ /dev/null
@@ -1,88 +0,0 @@
---!A cross-toolchain 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        load_macosx.lua
---
-
-function main(toolchain)
-    -- init architecture
-    local arch = toolchain:arch()
-    local xcode_sysroot = toolchain:config("xcode_sysroot")
-
-    -- is simulator?
-    local appledev = toolchain:config("appledev")
-    local simulator = appledev == "simulator"
-    assert(not simulator)
-    local catalyst = appledev == "catalyst"
-
-    -- init target minimal version
-    local target_minver = toolchain:config("target_minver")
-    local targetflag = format("%s-apple-macos", arch)
-    if target_minver then
-        targetflag = targetflag .. target_minver
-    end
-    if catalyst then
-        targetflag = targetflag .. "-macabi"
-    end
-    targetflag = {"-target", targetflag}
-
-    -- init flags for c/c++
-    toolchain:add("cxflags", {"-arch", arch}, targetflag, {"-isysroot", xcode_sysroot})
-    toolchain:add("ldflags", {"-arch", arch}, targetflag, {"-isysroot", xcode_sysroot}, "-lz")
-    toolchain:add("shflags", {"-arch", arch}, targetflag, {"-isysroot", xcode_sysroot}, "-lz")
-
-    -- init flags for objc/c++
-    toolchain:add("mxflags", {"-arch", arch}, targetflag, {"-isysroot", xcode_sysroot})
-
-    -- we can use `add_mxflags("-fno-objc-arc")` to override it in xmake.lua
-    toolchain:add("mxflags", "-fobjc-arc")
-
-    -- init flags for asm
-    toolchain:add("asflags", {"-arch", arch}, targetflag, "-isysroot", xcode_sysroot)
-
-    -- init flags for swift (with toolchain:add("ldflags and toolchain:add("shflags)
-    toolchain:add("scflags", {"-sdk", xcode_sysroot}, targetflag)
-    toolchain:add("scshflags", {"-sdk", xcode_sysroot}, targetflag, "-emit-library")
-    toolchain:add("scarflags", {"-sdk", xcode_sysroot}, targetflag, "-emit-library", "-static")
-    toolchain:add("scldflags", {"-sdk", xcode_sysroot}, targetflag, "-emit-executable")
-
-    if xcode_sysroot and catalyst then
-        toolchain:add("cxflags", {"-I", path.join(xcode_sysroot, "System/iOSSupport/usr/include")})
-        toolchain:add("mxflags", {"-I", path.join(xcode_sysroot, "System/iOSSupport/usr/include")})
-
-        toolchain:add("asflags", {"-I", path.join(xcode_sysroot, "System/iOSSupport/usr/include")})
-        toolchain:add("ldflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
-        toolchain:add("shflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
-
-        toolchain:add("scflags", {"-I", path.join(xcode_sysroot, "System/iOSSupport/usr/include")})
-        toolchain:add("scldflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
-        toolchain:add("scshflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
-        toolchain:add("scarflags", {"-L", path.join(xcode_sysroot, "System/iOSSupport/usr/lib")})
-
-        toolchain:add("cxflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
-        toolchain:add("mxflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
-
-        toolchain:add("asflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
-        toolchain:add("ldflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
-        toolchain:add("shflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
-
-        toolchain:add("scflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
-        toolchain:add("scshflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
-        toolchain:add("scarflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
-        toolchain:add("scldflags", {"-iframework", path.join(xcode_sysroot, "System/iOSSupport/System/Library/Frameworks")})
-    end
-end
diff --git a/xmake/toolchains/xcode/load_platform.lua b/xmake/toolchains/xcode/load_platform.lua
deleted file mode 100644
index 74c5c616f..000000000
--- a/xmake/toolchains/xcode/load_platform.lua
+++ /dev/null
@@ -1,59 +0,0 @@
---!A cross-toolchain 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        load_platform.lua
---
-
-function main(toolchain, plat)
-    -- init architecture
-    local arch = toolchain:arch()
-    local xcode_sysroot = toolchain:config("xcode_sysroot")
-
-    -- is simulator?
-    local appledev = toolchain:config("appledev")
-    local simulator = appledev == "simulator"
-
-    -- init target minimal version
-    local target_minver = toolchain:config("target_minver")
-    if target_minver then
-        if plat == "ios" and tonumber(target_minver) > 10 and (arch == "armv7" or arch == "armv7s" or arch == "i386") then
-            target_minver = "10" -- iOS 10 is the maximum deployment target for 32-bit targets
-        end
-    end
-    local targetflag = format("%s-apple-%s%s%s", arch, plat, target_minver or "", simulator and "-simulator" or "")
-    targetflag = {"-target", targetflag}
-
-    -- init flags for c/c++
-    toolchain:add("cxflags", {"-arch", arch}, targetflag, "-isysroot", xcode_sysroot)
-    toolchain:add("ldflags", {"-arch", arch}, targetflag, "-isysroot", xcode_sysroot, "-ObjC", "-fobjc-link-runtime")
-    toolchain:add("shflags", {"-arch", arch}, targetflag, "-isysroot", xcode_sysroot, "-ObjC", "-fobjc-link-runtime")
-
-    -- init flags for objc/c++
-    toolchain:add("mxflags", {"-arch", arch}, targetflag, "-isysroot", xcode_sysroot)
-
-    -- we can use `add_mxflags("-fno-objc-arc")` to override it in xmake.lua
-    toolchain:add("mxflags", "-fobjc-arc")
-
-    -- init flags for asm
-    toolchain:add("asflags", {"-arch", arch}, targetflag, "-isysroot", xcode_sysroot)
-
-    -- init flags for swift (with toolchain:add("ldflags and toolchain:add("shflags)
-    toolchain:add("scflags", {"-sdk", xcode_sysroot}, targetflag)
-    toolchain:add("scshflags", {"-sdk", xcode_sysroot}, targetflag, "-emit-library")
-    toolchain:add("scarflags", {"-sdk", xcode_sysroot}, targetflag, "-emit-library", "-static")
-    toolchain:add("scldflags", {"-sdk", xcode_sysroot}, targetflag, "-emit-executable")
-end
diff --git a/xmake/toolchains/xcode/load_watchos.lua b/xmake/toolchains/xcode/load_watchos.lua
deleted file mode 100644
index fa3f9f785..000000000
--- a/xmake/toolchains/xcode/load_watchos.lua
+++ /dev/null
@@ -1,26 +0,0 @@
---!A cross-toolchain 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        load_watchos.lua
---
-
-import("load_platform")
-
-function main(toolchain)
-    load_platform(toolchain, "watchos")
-end
-
diff --git a/xmake/toolchains/xcode/xmake.lua b/xmake/toolchains/xcode/xmake.lua
index 482fbaf7e..59ddb045d 100644
--- a/xmake/toolchains/xcode/xmake.lua
+++ b/xmake/toolchains/xcode/xmake.lua
@@ -25,44 +25,4 @@ toolchain("xcode")
     set_runtimes("c++_static", "c++_shared", "stdc++_static", "stdc++_shared")
 
     on_check("check")
-    on_load(function (toolchain)
-
-        -- set toolset
-        local arch              = toolchain:arch()
-        local bindir            = toolchain:bindir()
-        local appledev          = toolchain:config("appledev")
-        local xc_clang          = bindir and path.join(bindir, "clang") or "clang"
-        local xc_clangxx        = bindir and path.join(bindir, "clang++") or "clang++"
-        local xc_ar             = bindir and path.join(bindir, "ar") or "ar"
-        local xc_strip          = bindir and path.join(bindir, "strip") or "strip"
-        local xc_swift_frontend = bindir and path.join(bindir, "swift-frontend") or "swift-frontend"
-        local xc_swiftc         = bindir and path.join(bindir, "swiftc") or "swiftc"
-        local xc_dsymutil       = bindir and path.join(bindir, "dsymutil") or "dsymutil"
-
-        toolchain:set("toolset", "cc", xc_clang)
-        toolchain:set("toolset", "cxx", xc_clangxx, xc_clang)
-        toolchain:set("toolset", "ld", xc_clangxx, xc_clang)
-        toolchain:set("toolset", "sh", xc_clangxx, xc_clang)
-        toolchain:set("toolset", "ar", xc_ar)
-        toolchain:set("toolset", "strip", xc_strip)
-        toolchain:set("toolset", "dsymutil", xc_dsymutil, "dsymutil")
-        toolchain:set("toolset", "mm", xc_clang)
-        toolchain:set("toolset", "mxx", xc_clangxx, xc_clang)
-        toolchain:set("toolset", "sc", xc_swift_frontend, "swift_frontend", xc_swiftc, "swiftc")
-        toolchain:set("toolset", "scld", xc_swiftc, "swiftc")
-        toolchain:set("toolset", "scsh", xc_swiftc, "swiftc")
-        toolchain:set("toolset", "scar", xc_swiftc, "swiftc")
-        if arch then
-            toolchain:set("toolset", "cpp", xc_clang .. " -arch " .. arch .. " -E")
-        end
-        if toolchain:is_plat("macosx") then
-            toolchain:set("toolset", "as", xc_clang)
-        elseif appledev == "simulator" or appledev == "catalyst" then
-            toolchain:set("toolset", "as", xc_clang)
-        else
-            toolchain:set("toolset", "as", path.join(os.programdir(), "scripts", "gas-preprocessor.pl " .. xc_clang))
-        end
-
-        -- load configurations
-        import("load_" .. toolchain:plat())(toolchain)
-    end)
+    on_load("load")