diff --git a/extern/CMakeProject-tomcrypt.cmake b/extern/CMakeProject-tomcrypt.cmake
index ebc23ede8a..521d6542ed 100644
--- a/extern/CMakeProject-tomcrypt.cmake
+++ b/extern/CMakeProject-tomcrypt.cmake
@@ -474,6 +474,7 @@ if(APPLE)
 
   # Fixes build failures due to warnings on macOS >= 13.3
   # See itgmania/itgmania#107 for details
+  # TODO(teejusb/natano): Remove these two lines once these issues have been fixed upstream.
   set_property(TARGET "tomcrypt" PROPERTY C_STANDARD 90)
   set_property(TARGET "tomcrypt" PROPERTY C_STANDARD_REQUIRED ON)
 endif()
diff --git a/extern/CMakeProject-zlib.cmake b/extern/CMakeProject-zlib.cmake
index 725171af04..454652493b 100644
--- a/extern/CMakeProject-zlib.cmake
+++ b/extern/CMakeProject-zlib.cmake
@@ -35,6 +35,7 @@ set_property(TARGET "zlib" PROPERTY FOLDER "External Libraries")
 if(APPLE)
   # Fixes build failures due to warnings on macOS >= 13.3
   # See itgmania/itgmania#107 for details
+  # TODO(teejusb/natano): Remove these two lines once these issues have been fixed upstream.
   set_property(TARGET "zlib" PROPERTY C_STANDARD 90)
   set_property(TARGET "zlib" PROPERTY C_STANDARD_REQUIRED ON)
 endif(APPLE)