no1wudi opened a new pull request, #13245:
URL: https://github.com/apache/nuttx/pull/13245

   
   ## Summary
   This patch adds a static compatiblity check
   for most of structures from NuttX, which is used by Rust.
   
   Currently, for most of them have a reserved field, which is for possible 
future use, you can refer to 
https://github.com/no1wudi/libc/blob/39277b5357cb2aa7af1bd8344956ec292c35abed/src/unix/nuttx/mod.rs#L71
 for more details.
   
   I think we should define the initial version carefully, to avoid 
compatiblity problems in future as much as possible:
   1. Struct reserved size is 2 pointer size, is it sufficient?
   2. Which option should we preferred to use? Such as SYSTEM_TIME64 and 
FS_LARGEFILE?
   3. Should we enable it by default to cover more cases in build CI? It can 
prevent introduce compatiblity issues.
   
   Please feel free to comment


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