Re: [Pgbuildfarm-members] new build members

Daniel Black <daniel(dot)black(at)au1(dot)ibm(dot)com> writes:
> I've configured a bunch of builds to add to the build farm. The list is:

Hi Daniel! Thanks for bringing all those new critters online.
However, may I suggest that the ccache+clang ones would be a lot more
useful if you added this to their configuration:

build_env =>{

+ # needed to make ccache play nice with clang
+ CCACHE_CPP2 => '1',

Lack of this option is what's causing a lot of those useless warnings
(it has to do with clang being fed preprocessor output, which triggers
some of its more dubious warning heuristics). I think this has become
the default behavior as of ccache 3.3, but in older versions you gotta
ask for it.

As an example of the importance of this,
http://buildfarm.postgresql.org/cgi-bin/show_stage_log.pl?nm=devario&dt=2016-09-08%2000%3A44%3A53&stg=make
contains something north of 1000 warnings, most of which are entirely
bogus. Makes it hard to see if there are any that are meaningful.

regards, tom lane