make proto fails

[Jim Wilson]

Andreas Jaeger wrote:
> # Fix for argument ‘clean_text_p’ might be clobbered by ‘longjmp’ or ‘vfork’
> unprotoize.o-warn = -Wno-error

This is OK.

PR 21161 and PR 24239 are different instances of the same problem, so we 
don't need another bug report for this.  The previously mentioned PR 
21059 is a different issue.
-- 
Jim Wilson, GNU Tools Support, http://www.specifix.com