Yes, you are right. my mistake. I should choose the manual dev version. On Fri, Mar 17, 2023 at 4:12 PM Thomas Munro <thomas.mu...@gmail.com> wrote:
> On Fri, Mar 17, 2023 at 7:48 PM jian he <jian.universal...@gmail.com> > wrote: > > Hi, > > playing around with $[0] testlibpq2.c example. I wondered where > HAVE_SYS_SELECT_H is defined? > > > > I searched on the internet, founded that people also asked the same > question in $[1]. > > > > In my machine, I do have <sys/select.h>. > > system version: Ubuntu 22.04.1 LTS > > gcc version: gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0 > > gcc compile command: gcc pg_testlibpq2.c > -I/home/jian/postgres/pg16/include \ > > -L/home/jian/postgres/pg16/lib -lpq > > > > [0]https://www.postgresql.org/docs/current/libpq-example.html > > [1] > https://stackoverflow.com/questions/37876850/in-compilation-time-how-to-find-the-macro-is-defined-in-which-header-file > > In 15 and earlier, it is defined in pg_config.h, which is created by > configure. But in 16, that particular macro was removed by commit > 7e50b4e3c. It looks like you are using PostgreSQL 16 sources, but > looking at PostgreSQL 15 examples? > -- I recommend David Deutsch's <<The Beginning of Infinity>> Jian