Re: Significant oversight in that #include-removal script

Tom Lane wrote:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
> > Bruce Momjian wrote:
> >> The script certainly has no way to know it is missing an extern, and I
> >> am not sure how I would even teach it that trick.
> 
> > It would be easy if the compiler were to have an option to throw a
> > warning when it finds a non-static variable that doesn't have a
> > corresponding extern declaration.
> 
> Yeah, I think this is hopeless (or at least not worth the cost) without
> compiler support --- I was just idly wondering if newer gcc's might have
> such an option.
> 
> The case at hand is actually somewhat improbable, because it requires
> having a header file that exports a variable but not any of the file's
> functions.  So maybe it's not worth worrying about anyway.

The only thing I could come up with was to look at the symbols exported
by the object files.

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
 + If your life is a hard drive, Christ can be your backup. +