When autoreconf runs it dumps lines stating it's installing of various files, these seem to trigger a a GCC error filter.

The lines referenced appear to be meaningless, e.g. line 16 is blank, and 25 a commented out
check statement in configure.ac (Attached).

— Output in Hudson ------------
File: configure.ac, Line: 16, Type: gcc, Priority: High, Category: GCC error
installing `./missing'

File: configure.ac, Line: 25, Type: gcc, Priority: High, Category: GCC error
installing `./compile'

File: configure.ac, Line: 25, Type: gcc, Priority: High, Category: GCC error
installing `./config.sub'

File: configure.ac, Line: 16, Type: gcc, Priority: High, Category: GCC error
installing `./install-sh'

--Likely trigger lines in autoconf output---
configure.ac:9: installing `auto/config.guess'
configure.ac:9: installing `auto/config.sub'
configure.ac:6: installing `auto/install-sh'
configure.ac:6: installing `auto/missing'

(I know they don't completely match up, confusing me a bit too).