Fix clang-cl toolchain with lto

1 files changed, 7 insertions, 0 deletions

diff --git a/xmake/rules/c++/build_optimization/config.lua b/xmake/rules/c++/build_optimization/config.lua
index 357c3cf76..72b82a63a 100644
--- a/xmake/rules/c++/build_optimization/config.lua
+++ b/xmake/rules/c++/build_optimization/config.lua
@@ -30,6 +30,8 @@ function _add_lto_optimization(target, sourcekind)
     local cflag = sourcekind == "cxx" and "cxxflags" or "cflags"
     if cc == "cl" then
         target:add(cflag, "-GL")
+    elseif cc == "clang_cl" then
+        target:add(cflag, "/clang:-flto=thin")
     elseif cc == "clang" or cc == "clangxx" then
         target:add(cflag, "-flto=thin")
     elseif cc == "gcc" or cc == "gxx" then
@@ -57,6 +59,11 @@ function _add_lto_optimization(target, sourcekind)
             target:add("shflags", optimize_flags)
         end
     end
+
+    if cc == "clang_cl" and ld == "link" then
+        wprint([[clang-cl + msvc link unsupported lto, please use `set_toolset("ld", "lld-link")`]])
+        target:set("toolset", "ld", "lld-link")
+    end
 end
 
 function main(target, sourcekind)