Re: postgres with xcode

On 07/28/2018 04:04 AM, Sumit Chaturvedi wrote:
> Hello everyone. I'm a third year student from IIT Bombay, India. Since
> I'm currently learning about databases, I wanted to debug postgresql
> with xcode. However, I am having a lot of problems.
> OS - 10.13.6 (High Sierra)
> Xcode - 9.4.1
>
> To set up my system, I tried to replicate the instructions found at
> https://wiki.postgresql.org/wiki/Working_with_Eclipse
> <https://wiki.postgresql.org/wiki/Working_with_Eclipse> for my case.
>
> Everything proceeded fine until a point where I had to change the run
> configuration (scheme in xcode terms). I set the executable as postgre
> from /src/backend and gave the appropriate arguments. Then, when I
> pressed run, I got an error as shown in the attachment.

I can tell you where the error comes from:

postmaster.c

/*
* On macOS, libintl replaces setlocale() with a version that calls
* CFLocaleCopyCurrent() when its second argument is "" and every relevant
* environment variable is unset or empty. CFLocaleCopyCurrent() makes
* the process multithreaded. The postmaster calls sigprocmask() and
* calls fork() without an immediate exec(), both of which have undefined
* behavior in a multithreaded program. A multithreaded postmaster is the
* normal case on Windows, which offers neither fork() nor sigprocmask().
*/
if (pthread_is_threaded_np() != 0)
ereport(FATAL,
(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
errmsg("postmaster became multithreaded during
startup"),
errhint("Set the LC_ALL environment variable to
a valid locale.")));

> To solve it, I set up my environment variables in xcode appropriately to
> make sure that locale information was reaching wherever it was needed.
> But even now, when I press run I get the same error.

I do not see that the LC_ALL environment variable is set, per the HINT
to the FATAL message.

>
> Hoping someone can share with me how they went about with their setup.
>
> --
> Sumit Chaturvedi

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com