Igal @ Lucee.org wrote: > After reading Craig's excellent blog post at > https://blog.2ndquadrant.com/compiling-postgresql-extensions-visual-studio-windows/ > I decided to try and build a real extension - tds_fdw. > I've set it up in Visual Studio Community 2017, but am getting the following > errors: > Error C2375 'tds_fdw_handler': redefinition; different linkage > tds_fdw E:\Workspace\git\tds_fdw\src\tds_fdw.c 118 > Error C2375 'tds_fdw_validator': redefinition; different linkage > tds_fdw E:\Workspace\git\tds_fdw\src\tds_fdw.c 156 > Full output: > 1>------ Rebuild All started: Project: tds_fdw, Configuration: Release x64 > ------ > 1>deparse.c > 1>options.c > 1>tds_fdw.c > 1>src\tds_fdw.c(118): error C2375: 'tds_fdw_handler': redefinition; different > linkage > 1>E:\Workspace\git\tds_fdw\include\tds_fdw.h(130): note: see declaration of > 'tds_fdw_handler' > 1>src\tds_fdw.c(156): error C2375: 'tds_fdw_validator': redefinition; > different linkage > 1>E:\Workspace\git\tds_fdw\include\tds_fdw.h(131): note: see declaration of > 'tds_fdw_validator' > 1>Generating Code... > 1>Done building project "tds_fdw.vcxproj" -- FAILED. > ========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ========== > I'm not sure if it's related, but the FreeTDS version that I found for > Windows is marked as 32bit and I am trying to build for 64bit. > I believe that extensions like tds_fdw and pgloader will help users on TDS > databases to migrate to Postgres and will improve adoption of the project. I > will be more than happy to publish my binaries of the extension if I ever get > that far. > Can anyone help?
Based on my experience with oracle_fdw, I would change the function declaration in tds_fdw.h to extern PGDLLEXPORT Datum tds_fdw_handler(PG_FUNCTION_ARGS); Yours, Laurenz Albe -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
