diff --git a/core/SCsub b/core/SCsub
index 579c99b8124..aaa59618f36 100644
--- a/core/SCsub
+++ b/core/SCsub
@@ -40,6 +40,9 @@ with open("script_encryption_key.gen.cpp", "w") as f:
 
 
 # Add required thirdparty code.
+
+thirdparty_obj = []
+
 env_thirdparty = env.Clone()
 env_thirdparty.disable_warnings()
 
@@ -57,7 +60,7 @@ thirdparty_misc_sources = [
     "clipper.cpp",
 ]
 thirdparty_misc_sources = [thirdparty_misc_dir + file for file in thirdparty_misc_sources]
-env_thirdparty.add_source_files(env.core_sources, thirdparty_misc_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_misc_sources)
 
 # Zlib library, can be unbundled
 if env["builtin_zlib"]:
@@ -83,7 +86,7 @@ if env["builtin_zlib"]:
     if env["target"] == "debug":
         env_thirdparty.Append(CPPDEFINES=["ZLIB_DEBUG"])
 
-    env_thirdparty.add_source_files(env.core_sources, thirdparty_zlib_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_zlib_sources)
 
 # Minizip library, could be unbundled in theory
 # However, our version has some custom modifications, so it won't compile with the system one
@@ -94,7 +97,7 @@ thirdparty_minizip_sources = [
     "zip.c",
 ]
 thirdparty_minizip_sources = [thirdparty_minizip_dir + file for file in thirdparty_minizip_sources]
-env_thirdparty.add_source_files(env.core_sources, thirdparty_minizip_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_minizip_sources)
 
 # Zstd library, can be unbundled in theory
 # though we currently use some private symbols
@@ -136,10 +139,14 @@ if env["builtin_zstd"]:
     # Also needed in main env includes will trigger warnings
     env.Append(CPPDEFINES=["ZSTD_STATIC_LINKING_ONLY"])
 
-    env_thirdparty.add_source_files(env.core_sources, thirdparty_zstd_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_zstd_sources)
 
 
-# Godot's own sources
+env.core_sources += thirdparty_obj
+
+
+# Godot source files
+
 env.add_source_files(env.core_sources, "*.cpp")
 
 # Certificates
@@ -185,3 +192,6 @@ SConscript("bind/SCsub")
 # Build it all as a library
 lib = env.add_library("core", env.core_sources)
 env.Prepend(LIBS=[lib])
+
+# Needed to force rebuilding the core files when the thirdparty code is updated.
+env.Depends(lib, thirdparty_obj)
diff --git a/core/crypto/SCsub b/core/crypto/SCsub
index da4a9c9381d..4f3104d84be 100644
--- a/core/crypto/SCsub
+++ b/core/crypto/SCsub
@@ -6,6 +6,7 @@ env_crypto = env.Clone()
 
 is_builtin = env["builtin_mbedtls"]
 has_module = env["module_mbedtls_enabled"]
+thirdparty_obj = []
 
 if is_builtin or not has_module:
     # Use our headers for builtin or if the module is not going to be compiled.
@@ -35,6 +36,16 @@ if not has_module:
         "godot_core_mbedtls_platform.c",
     ]
     thirdparty_mbedtls_sources = [thirdparty_mbedtls_dir + file for file in thirdparty_mbedtls_sources]
-    env_thirdparty.add_source_files(env.core_sources, thirdparty_mbedtls_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_mbedtls_sources)
+    env.core_sources += thirdparty_obj
 
-env_crypto.add_source_files(env.core_sources, "*.cpp")
+
+# Godot source files
+
+core_obj = []
+
+env_crypto.add_source_files(core_obj, "*.cpp")
+env.core_sources += core_obj
+
+# Needed to force rebuilding the core files when the thirdparty library is updated.
+env.Depends(core_obj, thirdparty_obj)
diff --git a/drivers/gl_context/SCsub b/drivers/gl_context/SCsub
index e2e499f5c2a..3084ddd9591 100644
--- a/drivers/gl_context/SCsub
+++ b/drivers/gl_context/SCsub
@@ -2,6 +2,8 @@
 
 Import("env")
 
+thirdparty_obj = []
+
 if env["platform"] in ["haiku", "osx", "windows", "x11"]:
     # Thirdparty source files
     thirdparty_dir = "#thirdparty/glad/"
@@ -17,7 +19,16 @@ if env["platform"] in ["haiku", "osx", "windows", "x11"]:
 
     env_thirdparty = env.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.drivers_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.drivers_sources += thirdparty_obj
+
 
 # Godot source files
-env.add_source_files(env.drivers_sources, "*.cpp")
+
+driver_obj = []
+
+env.add_source_files(driver_obj, "*.cpp")
+env.drivers_sources += driver_obj
+
+# Needed to force rebuilding the driver files when the thirdparty code is updated.
+env.Depends(driver_obj, thirdparty_obj)
diff --git a/drivers/png/SCsub b/drivers/png/SCsub
index db08be0c47c..26508dc6121 100644
--- a/drivers/png/SCsub
+++ b/drivers/png/SCsub
@@ -5,6 +5,9 @@ Import("env")
 env_png = env.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_libpng"]:
     thirdparty_dir = "#thirdparty/libpng/"
     thirdparty_sources = [
@@ -41,7 +44,7 @@ if env["builtin_libpng"]:
 
     env_thirdparty = env_png.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.drivers_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
 
     if use_neon:
         env_neon = env_thirdparty.Clone()
@@ -52,9 +55,17 @@ if env["builtin_libpng"]:
         neon_sources.append(env_neon.Object(thirdparty_dir + "/arm/filter_neon_intrinsics.c"))
         neon_sources.append(env_neon.Object(thirdparty_dir + "/arm/filter_neon.S"))
         neon_sources.append(env_neon.Object(thirdparty_dir + "/arm/palette_neon_intrinsics.c"))
-        env.drivers_sources += neon_sources
+        thirdparty_obj += neon_sources
+
+    env.drivers_sources += thirdparty_obj
+
 
 # Godot source files
-env_png.add_source_files(env.drivers_sources, "*.cpp")
 
-Export("env")
+driver_obj = []
+
+env_png.add_source_files(driver_obj, "*.cpp")
+env.drivers_sources += driver_obj
+
+# Needed to force rebuilding the driver files when the thirdparty library is updated.
+env.Depends(driver_obj, thirdparty_obj)
diff --git a/modules/bullet/SCsub b/modules/bullet/SCsub
index 14ee85e0514..6fce7d9ee16 100644
--- a/modules/bullet/SCsub
+++ b/modules/bullet/SCsub
@@ -7,6 +7,8 @@ env_bullet = env_modules.Clone()
 
 # Thirdparty source files
 
+thirdparty_obj = []
+
 if env["builtin_bullet"]:
     # Build only version 2 for now (as of 2.89)
     # Sync file list with relevant upstream CMakeLists.txt for each folder.
@@ -207,8 +209,16 @@ if env["builtin_bullet"]:
 
     env_thirdparty = env_bullet.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
 
 
 # Godot source files
-env_bullet.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_bullet.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/cvtt/SCsub b/modules/cvtt/SCsub
index 3a27a599456..bd83ce0032a 100644
--- a/modules/cvtt/SCsub
+++ b/modules/cvtt/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_cvtt = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 thirdparty_dir = "#thirdparty/cvtt/"
 thirdparty_sources = ["ConvectionKernels.cpp"]
 
@@ -15,7 +18,15 @@ env_cvtt.Prepend(CPPPATH=[thirdparty_dir])
 
 env_thirdparty = env_cvtt.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
 # Godot source files
-env_cvtt.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_cvtt.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/denoise/SCsub b/modules/denoise/SCsub
index a202d1c7c04..83193f5222d 100644
--- a/modules/denoise/SCsub
+++ b/modules/denoise/SCsub
@@ -8,6 +8,9 @@ Import("env_modules")
 env_oidn = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 thirdparty_dir = "#thirdparty/oidn/"
 thirdparty_sources = [
     "core/api.cpp",
@@ -106,7 +109,8 @@ env_oidn.Append(
 
 env_thirdparty = env_oidn.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
 if env["platform"] == "windows" and not env.msvc:
     env_thirdparty.Append(CPPFLAGS=["-mstackrealign"])
@@ -117,5 +121,13 @@ weights_out_path = thirdparty_dir + "weights/rtlightmap_hdr.gen.cpp"
 env_thirdparty.Depends(weights_out_path, weights_in_path)
 env_thirdparty.CommandNoCache(weights_out_path, weights_in_path, resource_to_cpp.tza_to_cpp)
 
-env_oidn.add_source_files(env.modules_sources, "denoise_wrapper.cpp")
-env_modules.add_source_files(env.modules_sources, ["register_types.cpp", "lightmap_denoiser.cpp"])
+# Godot source files
+
+module_obj = []
+
+env_oidn.add_source_files(module_obj, "denoise_wrapper.cpp")
+env_modules.add_source_files(module_obj, ["register_types.cpp", "lightmap_denoiser.cpp"])
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/enet/SCsub b/modules/enet/SCsub
index c8f4b3885e4..580e5a3eb02 100644
--- a/modules/enet/SCsub
+++ b/modules/enet/SCsub
@@ -7,6 +7,8 @@ env_enet = env_modules.Clone()
 
 # Thirdparty source files
 
+thirdparty_obj = []
+
 if env["builtin_enet"]:
     thirdparty_dir = "#thirdparty/enet/"
     thirdparty_sources = [
@@ -26,6 +28,16 @@ if env["builtin_enet"]:
 
     env_thirdparty = env_enet.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
 
-env_enet.add_source_files(env.modules_sources, "*.cpp")
+
+# Godot source files
+
+module_obj = []
+
+env_enet.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/etc/SCsub b/modules/etc/SCsub
index 383bbf83c3e..9b46f179169 100644
--- a/modules/etc/SCsub
+++ b/modules/etc/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_etc = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 # Not unbundled so far since not widespread as shared library
 thirdparty_dir = "#thirdparty/etc2comp/"
 thirdparty_sources = [
@@ -31,7 +34,15 @@ env_etc.Prepend(CPPPATH=[thirdparty_dir])
 
 env_thirdparty = env_etc.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
 # Godot source files
-env_etc.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_etc.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/freetype/SCsub b/modules/freetype/SCsub
index cb9eb36b410..cc0fcaa1169 100644
--- a/modules/freetype/SCsub
+++ b/modules/freetype/SCsub
@@ -8,6 +8,9 @@ from compat import isbasestring
 env_freetype = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_freetype"]:
     thirdparty_dir = "#thirdparty/freetype/"
     thirdparty_sources = [
@@ -86,6 +89,7 @@ if env["builtin_freetype"]:
     env_thirdparty = env_freetype.Clone()
     env_thirdparty.disable_warnings()
     lib = env_thirdparty.add_library("freetype_builtin", thirdparty_sources)
+    thirdparty_obj += lib
 
     # Needs to be appended to arrive after libscene in the linker call,
     # but we don't want it to arrive *after* system libs, so manual hack
@@ -100,7 +104,16 @@ if env["builtin_freetype"]:
     if not inserted:
         env.Append(LIBS=[lib])
 
+
 # Godot source files
-env_freetype.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_freetype.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
 # Used in scene/, needs to be in main env
 env.Append(CPPDEFINES=["FREETYPE_ENABLED"])
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/jpg/SCsub b/modules/jpg/SCsub
index 8ee8e6dd6ee..7c6ceeea29f 100644
--- a/modules/jpg/SCsub
+++ b/modules/jpg/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_jpg = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 # Not unbundled for now as they are not commonly available as shared library
 thirdparty_dir = "#thirdparty/jpeg-compressor/"
 thirdparty_sources = [
@@ -17,7 +20,15 @@ env_jpg.Prepend(CPPPATH=[thirdparty_dir])
 
 env_thirdparty = env_jpg.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
-# Godot's own source files
-env_jpg.add_source_files(env.modules_sources, "*.cpp")
+# Godot source files
+
+module_obj = []
+
+env_jpg.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/mbedtls/SCsub b/modules/mbedtls/SCsub
index 5f5d25a3ee2..295fad49b43 100644
--- a/modules/mbedtls/SCsub
+++ b/modules/mbedtls/SCsub
@@ -5,8 +5,11 @@ Import("env_modules")
 
 env_mbed_tls = env_modules.Clone()
 
+# Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_mbedtls"]:
-    # Thirdparty source files
     thirdparty_sources = [
         "aes.c",
         "aesni.c",
@@ -96,7 +99,17 @@ if env["builtin_mbedtls"]:
 
     env_thirdparty = env_mbed_tls.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
 
-# Module sources
-env_mbed_tls.add_source_files(env.modules_sources, "*.cpp")
+
+# Godot source files
+
+module_obj = []
+
+env_mbed_tls.add_source_files(module_obj, "*.cpp")
+
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/ogg/SCsub b/modules/ogg/SCsub
index e768fb4ae84..e415d924985 100644
--- a/modules/ogg/SCsub
+++ b/modules/ogg/SCsub
@@ -9,6 +9,9 @@ Import("env_modules")
 env_ogg = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_libogg"]:
     thirdparty_dir = "#thirdparty/libogg/"
     thirdparty_sources = [
@@ -21,7 +24,16 @@ if env["builtin_libogg"]:
 
     env_thirdparty = env_ogg.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
+
 
 # Godot source files
-env_ogg.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_ogg.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/opensimplex/SCsub b/modules/opensimplex/SCsub
index 52d8b145ef3..86d77c3dfbd 100644
--- a/modules/opensimplex/SCsub
+++ b/modules/opensimplex/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_opensimplex = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 thirdparty_dir = "#thirdparty/misc/"
 thirdparty_sources = [
     "open-simplex-noise.c",
@@ -16,7 +19,15 @@ env_opensimplex.Prepend(CPPPATH=[thirdparty_dir])
 
 env_thirdparty = env_opensimplex.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
-# Godot's own source files
-env_opensimplex.add_source_files(env.modules_sources, "*.cpp")
+# Godot source files
+
+module_obj = []
+
+env_opensimplex.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/opus/SCsub b/modules/opus/SCsub
index 52c61fa7080..1437cd86df2 100644
--- a/modules/opus/SCsub
+++ b/modules/opus/SCsub
@@ -9,6 +9,10 @@ Import("env_modules")
 
 env_opus = env_modules.Clone()
 
+# Thirdparty source files
+
+thirdparty_obj = []
+
 # Thirdparty source files
 if env["builtin_opus"]:
     thirdparty_dir = "#thirdparty/opus/"
@@ -233,7 +237,16 @@ if env["builtin_opus"]:
 
     env_thirdparty = env_opus.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
 
-# Module files
-env_opus.add_source_files(env.modules_sources, "register_types.cpp")
+
+# Godot source files
+
+module_obj = []
+
+env_opus.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/pvr/SCsub b/modules/pvr/SCsub
index e0baf851f18..36052cffed5 100644
--- a/modules/pvr/SCsub
+++ b/modules/pvr/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_pvr = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 # Not unbundled so far since not widespread as shared library
 thirdparty_dir = "#thirdparty/pvrtccompressor/"
 thirdparty_sources = [
@@ -21,7 +24,15 @@ env_pvr.Prepend(CPPPATH=[thirdparty_dir])
 
 env_thirdparty = env_pvr.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
 # Godot source files
-env_pvr.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_pvr.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/raycast/SCsub b/modules/raycast/SCsub
index e6808d76ba1..978428e85cc 100644
--- a/modules/raycast/SCsub
+++ b/modules/raycast/SCsub
@@ -7,6 +7,8 @@ env_raycast = env_modules.Clone()
 
 # Thirdparty source files
 
+thirdparty_obj = []
+
 if env["builtin_embree"]:
     thirdparty_dir = "#thirdparty/embree/"
 
@@ -92,8 +94,16 @@ if env["builtin_embree"]:
 
     env_thirdparty = env_raycast.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
 
 
 # Godot source files
-env_raycast.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_raycast.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/recast/SCsub b/modules/recast/SCsub
index 5ef7e0b489c..050ca23082e 100644
--- a/modules/recast/SCsub
+++ b/modules/recast/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_recast = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_recast"]:
     thirdparty_dir = "#thirdparty/recastnavigation/Recast/"
     thirdparty_sources = [
@@ -27,7 +30,15 @@ if env["builtin_recast"]:
 
     env_thirdparty = env_recast.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
 
 # Godot source files
-env_recast.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_recast.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/regex/SCsub b/modules/regex/SCsub
index 2afacc1d9c7..deb9db7591f 100644
--- a/modules/regex/SCsub
+++ b/modules/regex/SCsub
@@ -5,6 +5,10 @@ Import("env_modules")
 
 env_regex = env_modules.Clone()
 
+# Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_pcre2"]:
     thirdparty_dir = "#thirdparty/pcre2/src/"
     thirdparty_flags = ["PCRE2_STATIC", "HAVE_CONFIG_H", "SUPPORT_UNICODE"]
@@ -52,11 +56,21 @@ if env["builtin_pcre2"]:
         env_pcre2 = env_regex.Clone()
         env_pcre2.disable_warnings()
         env_pcre2["OBJSUFFIX"] = "_" + width + env_pcre2["OBJSUFFIX"]
-        env_pcre2.add_source_files(env.modules_sources, thirdparty_sources)
         env_pcre2.Append(CPPDEFINES=[("PCRE2_CODE_UNIT_WIDTH", width)])
+        env_pcre2.add_source_files(thirdparty_obj, thirdparty_sources)
+        env.modules_sources += thirdparty_obj
 
     pcre2_builtin("16")
     pcre2_builtin("32")
 
+
+# Godot source files
+
+module_obj = []
+
 env_regex.Append(CPPDEFINES=[("PCRE2_CODE_UNIT_WIDTH", 0)])
-env_regex.add_source_files(env.modules_sources, "*.cpp")
+env_regex.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/squish/SCsub b/modules/squish/SCsub
index b31032403f2..c9e29911d85 100644
--- a/modules/squish/SCsub
+++ b/modules/squish/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_squish = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_squish"]:
     thirdparty_dir = "#thirdparty/squish/"
     thirdparty_sources = [
@@ -26,7 +29,16 @@ if env["builtin_squish"]:
 
     env_thirdparty = env_squish.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
+
 
 # Godot source files
-env_squish.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_squish.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/stb_vorbis/SCsub b/modules/stb_vorbis/SCsub
index 266c87c8024..8fddb23dc86 100644
--- a/modules/stb_vorbis/SCsub
+++ b/modules/stb_vorbis/SCsub
@@ -6,11 +6,22 @@ Import("env_modules")
 env_stb_vorbis = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 thirdparty_sources = ["#thirdparty/misc/stb_vorbis.c"]
 
 env_thirdparty = env_stb_vorbis.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
-# Godot's own source files
-env_stb_vorbis.add_source_files(env.modules_sources, "*.cpp")
+# Godot source files
+
+module_obj = []
+
+env_stb_vorbis.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/svg/SCsub b/modules/svg/SCsub
index 3d17f2dcf85..09f8ad94d4f 100644
--- a/modules/svg/SCsub
+++ b/modules/svg/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_svg = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 thirdparty_dir = "#thirdparty/nanosvg/"
 thirdparty_sources = ["nanosvg.cc"]
 thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
@@ -18,7 +21,15 @@ env.Append(CPPDEFINES=["SVG_ENABLED"])
 
 env_thirdparty = env_svg.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
-# Godot's own source files
-env_svg.add_source_files(env.modules_sources, "*.cpp")
+# Godot source files
+
+module_obj = []
+
+env_svg.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/theora/SCsub b/modules/theora/SCsub
index a01e65b4b07..6038ea086a2 100644
--- a/modules/theora/SCsub
+++ b/modules/theora/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_theora = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_libtheora"]:
     thirdparty_dir = "#thirdparty/libtheora/"
     thirdparty_sources = [
@@ -80,7 +83,16 @@ if env["builtin_libtheora"]:
 
     env_thirdparty = env_theora.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
+
 
 # Godot source files
-env_theora.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_theora.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/upnp/SCsub b/modules/upnp/SCsub
index 9ec99a9e99a..b2fed0cb23b 100644
--- a/modules/upnp/SCsub
+++ b/modules/upnp/SCsub
@@ -7,6 +7,8 @@ env_upnp = env_modules.Clone()
 
 # Thirdparty source files
 
+thirdparty_obj = []
+
 if env["builtin_miniupnpc"]:
     thirdparty_dir = "#thirdparty/miniupnpc/"
     thirdparty_sources = [
@@ -32,7 +34,16 @@ if env["builtin_miniupnpc"]:
 
     env_thirdparty = env_upnp.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
+
 
 # Godot source files
-env_upnp.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_upnp.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/vhacd/SCsub b/modules/vhacd/SCsub
index ecd432b275e..1ff4122114e 100644
--- a/modules/vhacd/SCsub
+++ b/modules/vhacd/SCsub
@@ -7,6 +7,8 @@ env_vhacd = env_modules.Clone()
 
 # Thirdparty source files
 
+thirdparty_obj = []
+
 thirdparty_dir = "#thirdparty/vhacd/"
 
 thirdparty_sources = [
@@ -24,10 +26,19 @@ thirdparty_sources = [
 
 thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-env_vhacd.Prepend(CPPPATH=[thirdparty_dir + "/inc"])
+env_vhacd.Prepend(CPPPATH=[thirdparty_dir + "inc"])
 
 env_thirdparty = env_vhacd.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
-env_vhacd.add_source_files(env.modules_sources, "*.cpp")
+# Godot source files
+
+module_obj = []
+
+env_vhacd.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/vorbis/SCsub b/modules/vorbis/SCsub
index 05d46757d3f..bc31fff066f 100644
--- a/modules/vorbis/SCsub
+++ b/modules/vorbis/SCsub
@@ -8,9 +8,10 @@ Import("env_modules")
 
 env_vorbis = env_modules.Clone()
 
-stub = True
-
 # Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_libvorbis"]:
     thirdparty_dir = "#thirdparty/libvorbis/"
     thirdparty_sources = [
@@ -51,7 +52,16 @@ if env["builtin_libvorbis"]:
 
     env_thirdparty = env_vorbis.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
 
-# Module files
-env_vorbis.add_source_files(env.modules_sources, "register_types.cpp")
+
+# Godot source files
+
+module_obj = []
+
+env_vorbis.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/webm/SCsub b/modules/webm/SCsub
index 247b4ead37c..44e80e2870e 100644
--- a/modules/webm/SCsub
+++ b/modules/webm/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_webm = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 thirdparty_dir = "#thirdparty/libsimplewebm/"
 thirdparty_sources = [
     "libwebm/mkvparser/mkvparser.cc",
@@ -31,7 +34,15 @@ if env["builtin_libvpx"]:
 
 env_thirdparty = env_webm.Clone()
 env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.modules_sources += thirdparty_obj
 
 # Godot source files
-env_webm.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_webm.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/webp/SCsub b/modules/webp/SCsub
index 58f2bb35e61..4c0c2f78937 100644
--- a/modules/webp/SCsub
+++ b/modules/webp/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_webp = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_libwebp"]:
     thirdparty_dir = "#thirdparty/libwebp/"
     thirdparty_sources = [
@@ -130,7 +133,16 @@ if env["builtin_libwebp"]:
 
     env_thirdparty = env_webp.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
+
 
 # Godot source files
-env_webp.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_webp.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/webrtc/SCsub b/modules/webrtc/SCsub
index 4f870ddb2f2..31b8a73bf2b 100644
--- a/modules/webrtc/SCsub
+++ b/modules/webrtc/SCsub
@@ -3,8 +3,6 @@
 Import("env")
 Import("env_modules")
 
-# Thirdparty source files
-
 env_webrtc = env_modules.Clone()
 use_gdnative = env_webrtc["module_gdnative_enabled"]
 
diff --git a/modules/websocket/SCsub b/modules/websocket/SCsub
index 13e51a39c05..4c022c43cfd 100644
--- a/modules/websocket/SCsub
+++ b/modules/websocket/SCsub
@@ -5,28 +5,44 @@ Import("env_modules")
 
 env_ws = env_modules.Clone()
 
+thirdparty_obj = []
+
 if env["platform"] == "javascript":
     # Our JavaScript/C++ interface.
     env.AddJSLibraries(["library_godot_websocket.js"])
+
 elif env["builtin_wslay"]:
     # Thirdparty source files
-    wslay_dir = "#thirdparty/wslay/"
-    wslay_sources = [
+    thirdparty_dir = "#thirdparty/wslay/"
+    thirdparty_sources = [
         "wslay_net.c",
         "wslay_event.c",
         "wslay_queue.c",
         "wslay_stack.c",
         "wslay_frame.c",
     ]
-    wslay_sources = [wslay_dir + s for s in wslay_sources]
-    env_ws.Prepend(CPPPATH=[wslay_dir + "includes/"])
+    thirdparty_sources = [thirdparty_dir + s for s in thirdparty_sources]
+
+    env_ws.Prepend(CPPPATH=[thirdparty_dir + "includes/"])
     env_ws.Append(CPPDEFINES=["HAVE_CONFIG_H"])
+
     if env["platform"] == "windows" or env["platform"] == "uwp":
         env_ws.Append(CPPDEFINES=["HAVE_WINSOCK2_H"])
     else:
         env_ws.Append(CPPDEFINES=["HAVE_NETINET_IN_H"])
-    env_wslay = env_ws.Clone()
-    env_wslay.disable_warnings()
-    env_wslay.add_source_files(env.modules_sources, wslay_sources)
 
-env_ws.add_source_files(env.modules_sources, "*.cpp")
+    env_thirdparty = env_ws.Clone()
+    env_thirdparty.disable_warnings()
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
+
+
+# Godot source files
+
+module_obj = []
+
+env_ws.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/modules/xatlas_unwrap/SCsub b/modules/xatlas_unwrap/SCsub
index c659349d05f..aa6bdaea334 100644
--- a/modules/xatlas_unwrap/SCsub
+++ b/modules/xatlas_unwrap/SCsub
@@ -6,6 +6,9 @@ Import("env_modules")
 env_xatlas_unwrap = env_modules.Clone()
 
 # Thirdparty source files
+
+thirdparty_obj = []
+
 if env["builtin_xatlas"]:
     thirdparty_dir = "#thirdparty/xatlas/"
     thirdparty_sources = [
@@ -17,7 +20,16 @@ if env["builtin_xatlas"]:
 
     env_thirdparty = env_xatlas_unwrap.Clone()
     env_thirdparty.disable_warnings()
-    env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
+    env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+    env.modules_sources += thirdparty_obj
+
 
 # Godot source files
-env_xatlas_unwrap.add_source_files(env.modules_sources, "*.cpp")
+
+module_obj = []
+
+env_xatlas_unwrap.add_source_files(module_obj, "*.cpp")
+env.modules_sources += module_obj
+
+# Needed to force rebuilding the module files when the thirdparty library is updated.
+env.Depends(module_obj, thirdparty_obj)
diff --git a/platform/android/SCsub b/platform/android/SCsub
index 6dd9dc04101..f2cea80611c 100644
--- a/platform/android/SCsub
+++ b/platform/android/SCsub
@@ -28,10 +28,14 @@ for x in android_files:
 
 env_thirdparty = env_android.Clone()
 env_thirdparty.disable_warnings()
-android_objects.append(env_thirdparty.SharedObject("#thirdparty/misc/ifaddrs-android.cc"))
+thirdparty_obj = env_thirdparty.SharedObject("#thirdparty/misc/ifaddrs-android.cc")
+android_objects.append(thirdparty_obj)
 
 lib = env_android.add_shared_library("#bin/libgodot", [android_objects], SHLIBSUFFIX=env["SHLIBSUFFIX"])
 
+# Needed to force rebuilding the platform files when the thirdparty code is updated.
+env.Depends(lib, thirdparty_obj)
+
 lib_arch_dir = ""
 if env["android_arch"] == "armv7":
     lib_arch_dir = "armeabi-v7a"
diff --git a/scene/SCsub b/scene/SCsub
index f9fc00f3f24..ccd2bab8ffe 100644
--- a/scene/SCsub
+++ b/scene/SCsub
@@ -4,24 +4,9 @@ Import("env")
 
 env.scene_sources = []
 
-# Thirdparty code
-thirdparty_dir = "#thirdparty/misc/"
-thirdparty_sources = [
-    # C++ sources
-    "easing_equations.cpp",
-    # C sources
-    "mikktspace.c",
-]
-thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
-
-env_thirdparty = env.Clone()
-env_thirdparty.disable_warnings()
-env_thirdparty.add_source_files(env.scene_sources, thirdparty_sources)
-
-# Godot's own sources
+# Godot source files
 env.add_source_files(env.scene_sources, "*.cpp")
 
-
 # Chain load SCsubs
 SConscript("main/SCsub")
 SConscript("gui/SCsub")
@@ -32,7 +17,6 @@ SConscript("audio/SCsub")
 SConscript("resources/SCsub")
 SConscript("debugger/SCsub")
 
-
 # Build it all as a library
 lib = env.add_library("scene", env.scene_sources)
 env.Prepend(LIBS=[lib])
diff --git a/scene/animation/SCsub b/scene/animation/SCsub
index fc61250247d..cc33a5af84f 100644
--- a/scene/animation/SCsub
+++ b/scene/animation/SCsub
@@ -2,4 +2,23 @@
 
 Import("env")
 
-env.add_source_files(env.scene_sources, "*.cpp")
+# Thirdparty code
+
+thirdparty_obj = []
+
+thirdparty_sources = "#thirdparty/misc/easing_equations.cpp"
+
+env_thirdparty = env.Clone()
+env_thirdparty.disable_warnings()
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.scene_sources += thirdparty_obj
+
+# Godot source files
+
+scene_obj = []
+
+env.add_source_files(scene_obj, "*.cpp")
+env.scene_sources += scene_obj
+
+# Needed to force rebuilding the scene files when the thirdparty code is updated.
+env.Depends(scene_obj, thirdparty_obj)
diff --git a/scene/resources/SCsub b/scene/resources/SCsub
index 3a86b228351..f4dc7a46fb0 100644
--- a/scene/resources/SCsub
+++ b/scene/resources/SCsub
@@ -2,6 +2,25 @@
 
 Import("env")
 
-env.add_source_files(env.scene_sources, "*.cpp")
+# Thirdparty code
+
+thirdparty_obj = []
+
+thirdparty_sources = "#thirdparty/misc/mikktspace.c"
+
+env_thirdparty = env.Clone()
+env_thirdparty.disable_warnings()
+env_thirdparty.add_source_files(thirdparty_obj, thirdparty_sources)
+env.scene_sources += thirdparty_obj
+
+# Godot source files
+
+scene_obj = []
+
+env.add_source_files(scene_obj, "*.cpp")
+env.scene_sources += scene_obj
+
+# Needed to force rebuilding the scene files when the thirdparty code is updated.
+env.Depends(scene_obj, thirdparty_obj)
 
 SConscript("default_theme/SCsub")
diff --git a/servers/camera/SCsub b/servers/camera/SCsub
index c949f3bb259..86681f9c74d 100644
--- a/servers/camera/SCsub
+++ b/servers/camera/SCsub
@@ -3,5 +3,3 @@
 Import("env")
 
 env.add_source_files(env.servers_sources, "*.cpp")
-
-Export("env")