Re: PostgreSQL X/Open Socket / BSD Socket Issue on HP-UX

MUHAMMAD ASIF <anaeem(dot)it(at)hotmail(dot)com> writes:
> I faced similar issue as discussed in "http://postgresql.1045698.n5.nabble.com/Fwd-DBD-Pg-on-HP-UX-11-31-64bit-td3305163.html".
> (man xopen_networking - http://docstore.mik.ua/manuals/hp-ux/en/B2355-60130/xopen_networking.7.html) ... There are two ways to obtain X/Open Sockets functionality: * Method A is in compliance with X/Open compilation specification. * Method B slightly deviates from X/Open compilation specification. However, Method B allows a program to include both objects compiled to X/Open Sockets specification and objects compiled to BSD Sockets specification. ...
> PostgreSQL support X/Open Sockets. Apache web server (2.2.15, /opt/hpws22/apache) and Perl (5.8.8, /opt/perl_64) are BSD Socket applications that are default with the OS. I tried Method B (It provides wrapper _xpg_ socket functions that allows using X/Open socket objects and BSD socket objects in the same binary) to build PostgreSQL 9.1 code, I LD_PRELOAD the generated libpq binary, without any other change both perl and apache work fine with postgresql now,and it is easy to implement too. We just need to build the source code with "-D_XOPEN_SOURCE=600 -D_HPUX_ALT_XOPEN_SOCKET_API" and link binary with libc. PFA patch. Thanks.

AFAICT, the proposed patch will break things on at least some versions
of HPUX. You can't just arbitrarily remove the reference to -lxnet,
at least not without explaining to us why the existing comment about it
is wrong. Likewise, removing -D_XOPEN_SOURCE_EXTENDED isn't
acceptable without a whole more supporting evidence than you've
provided. (I'm fairly certain that the latter will break the build on
my old HPUX 10.20 box, for example.)

regards, tom lane