PHILO-HE commented on issue #6726:
URL: 
https://github.com/apache/incubator-gluten/issues/6726#issuecomment-2272814414

   @xumingming, I just recalled something.
   
   ARROW_PARQUET & ARROW_FILESYSTEM are set to ON in two places:
   1. Gluten's 
[build_arrow.sh](https://github.com/apache/incubator-gluten/blob/main/dev/build_arrow.sh#L40).
 It will install arrow libs into system path. And we also remove install_arrow 
from velox's setup script to make sure those arrow libs built out with expected 
options are installed, see 
[link](https://github.com/apache/incubator-gluten/blob/main/ep/build-velox/src/get_velox.sh#L93).
   2. Velox's 
[modify_velox.patch](https://github.com/apache/incubator-gluten/blob/main/ep/build-velox/src/modify_velox.patch#L38).
 The code change by this patch will take affect when building arrow from 
source. This build will be triggered only if system arrow libs are not found, 
assuming `Arrow_SOURCE=AUTO`.
   
   This looks a bit tricky. If you have any advice, please kindly let me know.
   
   I guess your system has installed arrow libs from Velox's script.


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