On Sun, Jun 18, 2023 at 09:23:22PM +0800, jian he wrote:
> previously I cannot link it. with
> v2-0001-Support-sending-Close-messages-from-libpq.patch. now I can
> compile it, link it, but then run time error.
> same c program in the first email.
> when I run it ./a.out, then error:
> ./a.out: symbol lookup error: ./a.out: undefined symbol: PQsendClosePrepared
If you still have problems, it seems to me that one mistake is in not
updating LD_LIBRARY_PATH. It should point to a version of libpq
compiled with the patch, or -lpq will not be able to resolve correctly
when compiling your test program.
--
Michael