fix libc++ abi issue

Author: Sunrisepeak

.github/workflows/ci.yml

@@ -78,9 +78,7 @@ jobs:
 
       - name: Build with xmake
         run: |
-          export LLVM_PREFIX=$HOME/.xlings/data/xpkgs/xim-x-llvm/20.1.7
-          ls -al $LLVM_PREFIX
-          xmake f -m release --toolchain=llvm --sdk=$LLVM_PREFIX -vv -y
+          xmake f -m release --toolchain=llvm -vv -y
           xmake -j$(nproc)
 
       - name: Verify d2x --version

xmake.lua

@@ -20,14 +20,6 @@ target("d2x")
     -- platform specific settings
     if is_plat("macosx") then
         set_toolchains("llvm")
-        local llvm_prefix = os.getenv("LLVM_PREFIX")
-        if llvm_prefix then -- if LLVM_PREFIX is set, we assume it's a recent version of LLVM that provides its own libc++ with C++23 support
-            -- 静态链接 LLVM 自带的 libc++，避免依赖系统 libc++.dylib 中缺失的 C++23 符号
-            -- (std::println 等 C++23 特性需要 macOS 15+ 的 libc++，静态链接后可在 macOS 11+ 运行)
-            add_ldflags("-nostdlib++", {force = true})
-            add_ldflags(llvm_prefix .. "/lib/libc++.a", {force = true})
-            add_ldflags(llvm_prefix .. "/lib/libc++abi.a", {force = true})
-        end
     elseif is_plat("linux") then
         add_ldflags("-static", {force = true})
     end