xuxin930 opened a new pull request, #2506:
URL: https://github.com/apache/nuttx-apps/pull/2506
## Summary
1. overwritten issue
when there are a lot of SRCS files and they are split into many
batches,
the Make.dep file will be overwritten, causing incremental compilation
exceptions.
2. incremental compile speed issue
when incremental compilation is performed, the contents of the
Make.dep file will be repeated multiple times (because the incremental SRC
changes will cause .depend to be executed).
this will cause additional overhead when Make.dep is parsed by GNU Make.
In the case I tested, Make.dep was incrementally compiled to more than 1G,
slowing down the incremental compilation speed.
## Impact
## Testing
CI
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