Re: Support custom socket directory in pg_upgrade

Daniel Gustafsson  writes:
> [ pg_upgrade_sockdir-v3.patch ]

BTW, I notice that cfbot doesn't like this now that Thomas is running it
with -Werror:

option.c: In function ‘parseCommandLine’:
option.c:265:8: error: ignoring return value of ‘getcwd’, declared with attribute warn_unused_result [-Werror=unused-result]
  getcwd(default_sockdir, MAXPGPATH);
        ^
cc1: all warnings being treated as errors

Failing to check a syscall's result isn't per project style even if
the tools would let you get away with it.  Other places in that same
file do

		if (!getcwd(cwd, MAXPGPATH))
			pg_fatal("could not determine current directory\n");

			regards, tom lane