Fix windows build

Author: cjdsellers

.github/workflows/build.yml

@@ -308,11 +308,25 @@ jobs:
           python-version: ${{ matrix.python-version }}
           free-disk-space: "false"
 
+      - name: Make clang-cl the default “cl”
+        shell: bash
+        run: |
+          mkdir -p "$GITHUB_WORKSPACE/bin"
+          cat >"$GITHUB_WORKSPACE/bin/cl.cmd" <<'EOF'
+          @echo off
+          "C:\Program Files\LLVM\bin\clang-cl.exe" %*
+          EOF
+
+          echo "$GITHUB_WORKSPACE/bin" > "$GITHUB_PATH"
+          chmod +x "$GITHUB_WORKSPACE/bin/cl.cmd"
+
       - name: Use clang-cl
         run: |
-          echo 'C:\Program Files\LLVM\bin' > "$GITHUB_PATH"
-          echo 'CC=clang-cl'  >> "$GITHUB_ENV"
-          echo 'CXX=clang-cl' >> "$GITHUB_ENV"
+          echo "C:\Program Files\LLVM\bin" >> "$GITHUB_PATH"
+          echo "CC=clang-cl"  >> "$GITHUB_ENV"
+          echo "CXX=clang-cl" >> "$GITHUB_ENV"
+          echo "DISTUTILS_USE_SDK=1" >> "$GITHUB_ENV"
+          echo "CFLAGS=/D__SIZEOF_INT128__=0" >> "$GITHUB_ENV"
 
       - name: Show compiler
         run: '"C:\Program Files\LLVM\bin\clang-cl" --version | head -n 1'

crates/model/cbindgen.toml

@@ -5,16 +5,7 @@ includes = []
 sys_includes = ["stdint.h", "Python.h"]
 no_includes = true
 tab_width = 4
-after_includes = """\n
-#ifdef HIGH_PRECISION      /* only when the Rust feature is enabled           */
-  /* Clang & GCC both understand __int128.  CL on Windows (MSVC) does not,
-     but when we compile with clang-cl (or on *nix) it works fine.            */
-  #ifdef __SIZEOF_INT128__ /* defined by all targets that actually support it */
-    typedef __uint128_t uint128_t;
-    typedef  __int128_t  int128_t;
-  #endif
-#endif
-"""
+after_includes = "\n#ifdef __SIZEOF_INT128__\n    typedef __uint128_t uint128_t;\n    typedef __int128_t int128_t;\n#endif"
 
 [defines]
 "feature = high-precision" = "HIGH_PRECISION"

nautilus_trader/core/includes/model.h

@@ -5,17 +5,11 @@
 #include <stdint.h>
 #include <Python.h>
 
-
-#ifdef HIGH_PRECISION      /* only when the Rust feature is enabled           */
-  /* Clang & GCC both understand __int128.  CL on Windows (MSVC) does not,
-     but when we compile with clang-cl (or on *nix) it works fine.            */
-  #ifdef __SIZEOF_INT128__ /* defined by all targets that actually support it */
+#ifdef __SIZEOF_INT128__
     typedef __uint128_t uint128_t;
-    typedef  __int128_t  int128_t;
-  #endif
+    typedef __int128_t int128_t;
 #endif
 
-
 #define DEPTH10_LEN 10
 
 /**