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.klaver@aklaver.com