Re: Complier warnings on mingw gcc 4.5.0

Andrew Dunstan <andrew@dunslane.net> writes:
> On 11/01/2010 10:10 PM, Itagaki Takahiro wrote:
>> BTW, with out without the above fix, regression test failed with
>> weird error if the server is built with gcc 4.5. However, server
>> can run if I started it manually with PGPORT or -o "--port=X".
>> We might need another fix for the issue.
>> ----
>> LOG:  database system was shut down at 2010-11-02 10:32:13 JST
>> LOG:  database system is ready to accept connections
>> LOG:  autovacuum launcher started
>> FATAL:  parameter "port" cannot be changed without restarting the server
>> (repeated)

> I have just run into this when trying to set up a new buildfarm member 
> running Mingw. Is there a fix? Is anyone working on it? Or do I just 
> need to downgrade the compiler?

It smells a little bit like an optimization bug.  Does dialing down to
-O0 make it go away?
        regards, tom lane