diff --git a/packages.d/pygame/pygame.sh b/packages.d/pygame/pygame.sh
index ace2520..257efa3 100755
--- a/packages.d/pygame/pygame.sh
+++ b/packages.d/pygame/pygame.sh
@@ -73,6 +73,23 @@ then
     #unsure
     wget -O- https://patch-diff.githubusercontent.com/raw/pmp-p/pygame-ce-wasm/pull/3.diff | patch -p1
 
+    patch -p1 << END
+diff --git a/buildconfig/Setup.Emscripten.SDL2.in b/buildconfig/Setup.Emscripten.SDL2.in
+index 0bd60a30..e74effe9 100644
+--- a/buildconfig/Setup.Emscripten.SDL2.in
++++ b/buildconfig/Setup.Emscripten.SDL2.in
+@@ -6,7 +6,8 @@
+ #MIXER = -lSDL2_mixer
+ #SCRAP =
+ #FREETYPE = -lfreetype -lharfbuzz
+-
++PNG= -lpng
++JPEG= -ljpeg
+ DEBUG =
+
+ # these can build alone and object files merged with ar
+END
+
     patch -p1 << END
 diff --git a/src_c/static.c b/src_c/static.c
 index 03cc7c61..a00a51a7 100644
diff --git a/pygbag/support/cross/aio/gthread.py b/pygbag/support/cross/aio/gthread.py
index 3820050..9e368bb 100644
--- a/pygbag/support/cross/aio/gthread.py
+++ b/pygbag/support/cross/aio/gthread.py
@@ -101,7 +101,7 @@ def __init__(self, group=None, target=None, name=None, args=(), kwargs={}, *, da
         self.name = name
         self.slice = 0
         self.last = aio.rtclock()
-
+        self.native_id = id(self)
         if target:
             if hasattr(target, "run"):
                 if name is None:
@@ -112,14 +112,14 @@ def __init__(self, group=None, target=None, name=None, args=(), kwargs={}, *, da
 
             if name is None:
                 try:
-                    self.name = "%s-%s" % (self.run.__name__, id(self))
+                    self.name = "%s-%s" % (self.run.__name__, self.native_id)
                 except:
                     pass
         else:
             target = self
 
         if self.name is None:
-            self.name = "%s-%s" % (self.__class__.__name__, id(self))
+            self.name = "%s-%s" % (self.__class__.__name__, self.native_id)
         self.status = None
 
     async def wrap(self):
diff --git a/scripts/build-loader.sh b/scripts/build-loader.sh
index b0846b2..e4cec71 100755
--- a/scripts/build-loader.sh
+++ b/scripts/build-loader.sh
@@ -255,6 +255,7 @@ then
     " 1>&2
 
 #  -std=gnu99 -std=c++23
+# EXTRA_EXPORTED_RUNTIME_METHODS => EXPORTED_RUNTIME_METHODS after 3.1.52
 
     cat > final_link.sh <<END
 #!/bin/bash
@@ -263,7 +264,7 @@ emcc \\
  $LOPTS \\
  -D__PYDK__=1 -DNDEBUG \\
      -sTOTAL_MEMORY=256MB -sSTACK_SIZE=4MB -sALLOW_TABLE_GROWTH -sALLOW_MEMORY_GROWTH \\
-    -sEXTRA_EXPORTED_RUNTIME_METHODS=FS \\
+    -sEXPORTED_RUNTIME_METHODS=FS \\
      $CF_SDL \\
      --use-preload-plugins \\
      $STDLIBFS \\
diff --git a/scripts/vendoring.sh b/scripts/vendoring.sh
index 0bd9e55..f2cccba 100755
--- a/scripts/vendoring.sh
+++ b/scripts/vendoring.sh
@@ -5,7 +5,7 @@ export VENDOR=${VENDOR:-pygbag}
 export PACKAGES=${PACKAGES:-emsdk hpy pygame}
 
 export SDKROOT=${SDKROOT:-/opt/python-wasm-sdk}
-export SDK_VERSION=${SDK_VERSION:-3.1.51.1bi}
+export SDK_VERSION=${SDK_VERSION:-3.1.52.0bi}
 export CYTHON=${CYTHON:-Cython-3.0.1-py2.py3-none-any.whl}
 export PYBUILD=${PYBUILD:-3.11}
 export LC_ALL=C
diff --git a/test/main.py b/test/main.py
index 84dcb9f..b766b6c 100644
--- a/test/main.py
+++ b/test/main.py
@@ -90,13 +90,17 @@ async def main():
     # Green threads are ordered at runtime unlike system threads.
 
     # erase and fill
-    Thread(target=color_background, args=[win]).start()
+    t1=Thread(target=color_background, args=[win])
+    t1.start()
 
     # 1st object to draw
-    Thread(target=moving_png, args=[win]).start()
+    t2=Thread(target=moving_png, args=[win])
+    t2.start()
 
     # 2nd
-    Thread(target=moving_bmp, args=[win]).start()
+    (t3:=Thread(target=moving_bmp, args=[win])).start()
+
+    print( t1.native_id , t2.native_id , t3.native_id)
 
     while True:
         if count >= 0: