Thank you for the Cc: bug mailing list.
> 1. Yes, I know but it seems that gtags uses sort utility
> internally? See that sort are making lots of temp files
> while gtags is doing parsing.
You can stop sorting using the following configuration option.
But it probably becomes slow.
The --sqlite3 option does not use sorting, either.
> 2. It seems it's 2GB issue.
> -rw------- 1 kit kit 895279104 Jun 15 16:19 GPATH
> -rw------- 1 kit kit 0 Jun 15 15:54 GRTAGS
> -rw------- 1 kit kit 2147483647 Jun 15 16:21 GTAGS
Probably, that's right.
> 3. sqlite. Is that because it could have tag file bigger
> than 2GB? If use sqlite, is it going be slower than using
> normal tag db?
Please try it.