On 01/27/2013 01:14 AM, Anderson C. Carniel wrote: > Hi, > > I'm trying to build a. dll file to extend the postgres server with C > functions. I'm using visual studio 2012 to build the dll, and > PostgreSQL 9.2. I imported all directories postgres "\include\server*" > But I'm having the errors: > > error C2011: 'timezone': 'struct' type redefinition > > error C2011: 'itimerval': 'struct' type redefinition > > In the file *pg_confi_os.h* at line 205 and 214 >
First, you'll want to build with Visual Studio 2010 or older. The Express edition works fine. Second, it's very unlikely that you can just compile the extension .c file stand-alone. You'll need to set a bunch of preprocesor definitions, some of which are somewhat configuration/environment specific. The best way to compile extensions at the moment may be to get the PostgreSQL source tree, add your extension as a folder inside the contrib/ directory with a Makefile, then use the tooling in src/tools/msvc to compile the source tree including the extension. I would really like to see this improve, with a working PGXS alternative for Windows MSVC builds. I'm not presently aware of anything, but I haven't investigated building extensions out of tree under Windows/MSVC in detail yet. -- Craig Ringer http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
