diff --git a/build.bat b/build.bat
index 9a8c81cd..684a30d3 100644
--- a/build.bat
+++ b/build.bat
@@ -27,6 +27,7 @@ cd /D "%~dp0"
 :: - `ubsan`: enable undefined-behavior sanitizer
 :: - `telemetry`: enable RAD telemetry profiling support
 :: - `spall`: enable spall profiling support
+:: - `oodle`: enable Oodle from local\oodle2*\win or an explicit OODLE_SDK_DIR
 
 :: --- Unpack Arguments -------------------------------------------------------
 for %%a in (%*) do set "%%~a=1"
@@ -154,6 +155,38 @@ if not exist build\blake3.lib if "%VSCMD_ARG_TGT_ARCH%" equ "x64" (
   popd
 )
 
+:: --- Set up Oodle SDK -------------------------------------------------------
+if "%oodle%"=="1" (
+  set "oodle_sdk_path=%OODLE_SDK_DIR%"
+  if not defined oodle_sdk_path (
+    for /d %%d in ("%~dp0local\oodle2*") do (
+      if exist "%%~fd\win\include\oodle2.h" (
+        if defined oodle_sdk_path (
+          echo Multiple Oodle SDKs found: "!oodle_sdk_path!" and "%%~fd\win"
+          echo Set OODLE_SDK_DIR to select the SDK root.
+          exit /b 1
+        )
+        set "oodle_sdk_path=%%~fd\win"
+      )
+    )
+  )
+  if not defined oodle_sdk_path (
+    echo Oodle SDK not found. Put an oodle2* SDK with a win subdirectory in "%~dp0local" or set OODLE_SDK_DIR.
+    exit /b 1
+  )
+  if exist "!oodle_sdk_path!\win\include\oodle2.h" set "oodle_sdk_path=!oodle_sdk_path!\win"
+  for %%d in ("!oodle_sdk_path!") do set "oodle_sdk_path=%%~fd"
+  if not exist "!oodle_sdk_path!\include\oodle2.h" (
+    echo Oodle SDK directory "!oodle_sdk_path!" must contain include\oodle2.h
+    exit /b 1
+  )
+  echo [Oodle SDK: !oodle_sdk_path!]
+  set "compile=!compile! -DOODLE_SDK=1 -I"!oodle_sdk_path!\include""
+  if exist "!oodle_sdk_path!\redist\oo2core_*_win64.dll" (
+    copy /y "!oodle_sdk_path!\redist\oo2core_*_win64.dll" "%~dp0build\" >nul || exit /b 1
+  )
+)
+
 :: --- Build Everything (@build_targets) --------------------------------------
 pushd build
 if "%raddbg%"=="1"                     set didbuild=1 && %compile% ..\src\raddbg\raddbg_main.c                               %compile_link% %link_icon% %out%raddbg.exe || exit /b 1
diff --git a/build.sh b/build.sh
index c481af6e..4f015187 100755
--- a/build.sh
+++ b/build.sh
@@ -49,8 +49,9 @@ if   [[ "${release:-0}" == "1" ]]; then echo "[release mode]"; compile="$compile
 elif [[ "${debug:-1}"   == "1" ]]; then echo "[debug mode]";   compile="$compiler $cc_debug";
 fi
 
+oodle_flags=()
 compile() {
-  $compile -Wl,--start-group "$@" blake3.a -latomic -Wl,--end-group
+  $compile "${oodle_flags[@]}" -Wl,--start-group "$@" blake3.a -latomic -Wl,--end-group
 }
 
 # --- Prep Directories --------------------------------------------------------
@@ -77,6 +78,43 @@ then
   $ar rs build/blake3.a build/blake3_*_unix.o
 fi
 
+# --- Set up Oodle SDK -------------------------------------------------------
+if [[ "${oodle:-0}" == "1" ]]; then
+  oodle_sdk_path="${OODLE_SDK_DIR:-}"
+  if [[ -z "$oodle_sdk_path" ]]; then
+    for sdk in "$PWD"/local/oodle2*; do
+      if [[ -f "$sdk/linux/include/oodle2.h" ]]; then
+        if [[ -n "$oodle_sdk_path" ]]; then
+          echo "Multiple Oodle SDKs found: $oodle_sdk_path and $sdk/linux" >&2
+          echo "Set OODLE_SDK_DIR to select the SDK root." >&2
+          exit 1
+        fi
+        oodle_sdk_path="$sdk/linux"
+      fi
+    done
+  fi
+  if [[ -z "$oodle_sdk_path" ]]; then
+    echo "Oodle SDK not found. Put an oodle2* SDK with a linux subdirectory in $PWD/local or set OODLE_SDK_DIR." >&2
+    exit 1
+  fi
+  if [[ -f "$oodle_sdk_path/linux/include/oodle2.h" ]]; then
+    oodle_sdk_path="$oodle_sdk_path/linux"
+  fi
+  if [[ ! -f "$oodle_sdk_path/include/oodle2.h" ]]; then
+    echo "Oodle SDK directory '$oodle_sdk_path' must contain include/oodle2.h" >&2
+    exit 1
+  fi
+  oodle_sdk_path="$(cd "$oodle_sdk_path" && pwd)"
+  echo "[Oodle SDK: $oodle_sdk_path]"
+  # Keep the include path as one argument, including when it contains spaces.
+  oodle_flags=(-DOODLE_SDK=1 "-I$oodle_sdk_path/include")
+  for library in "$oodle_sdk_path"/lib/liboo2corelinux64.so "$oodle_sdk_path"/lib/liboo2corelinux64.so.*; do
+    if [[ -f "$library" ]]; then
+      cp -- "$library" "$PWD/build/"
+    fi
+  done
+fi
+
 # --- Build Everything (@build_targets) ---------------------------------------
 cd build
 if [[ "${raddbg:-0}"               == "1" ]]; then didbuild=1 && compile ../src/raddbg/raddbg_main.c $cc_icon $cc_link $cc_os_gfx $cc_render $cc_font_provider -o raddbg; fi