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I'm getting the same problem expressed here

Failing to build PostGIS on OS X 10.7 Lion

But in Mac OS X Snow Leopard. Things I have checked include:

  • PostgreSQL compiled to several architectures. I used the binary from, and tested the dynlib objects with the tool file
  • PROJ and GEOS compiled for i386 and x86_64. I used the frameworks from
  • GDAL compiled from sources following KyngChaos instructions. I compiled it instead of using the provided framework because I'm a GDAL developer, and I'm going to work with it.
  • Trying to compile PostGIS, because I'm a PostGIS developer too, and I don't want to use the binaries. It has been configured correctly. I used this:

But I'm still getting the error: ld: symbol(s) not found for architecture i386

Other things I've tried:

  • Compile ONLY for arch i386. Not working. PostgreSQL expects PostGIS compiled for both architectures. I get the error ld: symbol(s) not found for architecture x86_64.
  • Compile ONLY for arch x86_64. Not working, for the same reason. I get the error ld: symbol(s) not found for architecture i386

I could provide configure and makefile logs, if needed, but the problem is this. It's a problem known in PostGIS lists, but I still haven't found a solution...

Thanks in advance, and best regards

share|improve this question
Maybe you should add a link to the problem as expressed on the PostGIS mailing lists ... – Stev_k Mar 9 '12 at 11:44
I solved the problem, but here the link to my message in the postgis-devel list:… – jorgeas80 Mar 9 '12 at 15:58
Do you really need PostGIS as a fat binary? If it is just for use on one Mac (i.e. you are not distributing binaries to other machines), save yourself a dumptruckload of pain and just build everything as x86_64. A package manager such a Homebrew or MacPorts can also help get things installed. – Sharpie Mar 9 '12 at 17:55
Yes, it's only for me. I could compile only for x86_64. I'm probably too lazy, because I followed instructions that compile for both archs. Thanks for the suggestion! – jorgeas80 Mar 11 '12 at 22:36
up vote 4 down vote accepted

Build for both and only exclude powerpc binaries.

 ARCHFLAGS="-arch i386 -arch x86_64" ./configure
 ARCHFLAGS="-arch i386 -arch x86_64" ./make

But honestly, if you are already in the Kyngchaos realm with GEOS and proj.4, then just grab his PostgreSQL/PostGIS binaries, too.

share|improve this answer
Thanks for the tip. Now I'm getting a different error: ar: libpgcommon.a is a fat file (use libtool(1) or lipo(1) and ar(1) on it) ar: libpgcommon.a: Inappropriate file type or format. I'd use the binaries, but the point is I'm a GDAL/PostGIS developer, and I need to compile both libraries by myself. – jorgeas80 Mar 9 '12 at 8:01
I finally solved the problem compiling PostgreSQL using -arch i386 -arch x86_64. – jorgeas80 Mar 9 '12 at 15:57
Sorry, I'm probably misunderstanding your answer, but your suggestion was to compile PostGIS with those flags. My solution was to compile PostgreSQL, a prerequisite, using those flags too, instead of using a precompiled version of PostgreSQL. Anyway, I'll mark your answer as valid. – jorgeas80 Mar 11 '12 at 22:33
Any binary that you will link against must match the architecture. So in your case client-postgresql/proj/geos/gdal/postgis/etc must match. When in doubt, use the file <library_name> command. – Ragi Yaser Burhum Mar 12 '12 at 5:18
Yes, I discovered the "file" command, and it's really useful. Thanks for the tip! – jorgeas80 Mar 13 '12 at 10:26

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