[PORTS] Mac OS 10.4/10.5 compile issues

From: Israel Brewster <israel(at)frontierflying.com>
Date: Wed Feb 06 2008 - 14:36:04 EST

I am developing an application that links against libpq on Mac OS 10.5. I want this application to be able to run on both 10.4 and 10.5. So far I have it working fine on my 10.5 build machine. However, when I try moving it to a 10.4 machine, I run into problems apparently related to the libpq build.

My first attempt was with a "standard" universal binary build of postgresql (CFLAGS="-O -g -arch i386 -arch ppc" ./configure; make; make install ) This produced a .dylib file that my application happily linked against, and ran fine on 10.5. When I move the library and application to 10.4, however, while the application will still launch and run, as soon as I try to use anything from libpq, the program crashes with the following error:

dyld: lazy symbol binding failed: Symbol not found: _fcntl$UNIX2003

   Referenced from: /Volumes/MIS/AssetTracker/AssetTracker.app/ Contents/MacOS/../Frameworks/libpq.5.dylib

   Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: _fcntl$UNIX2003

   Referenced from: /Volumes/MIS/AssetTracker/AssetTracker.app/ Contents/MacOS/../Frameworks/libpq.5.dylib

   Expected in: /usr/lib/libSystem.B.dylib

It would appear that libpq is looking for something in the libSystem library that apparently exists on 10.5, but not 10.4. I figured that a static build of libpq should fix this problem, so I did a make distclean, and then re-ran the configure command with the --disable- shared flag to generate a static-only build. Unfortunately, this resulted in a slew of "undefined symbol" errors when I tried to compile my app. It would appear that when I don't build the shared libraries, my app can no longer link against libpq properly. Now, granted, that could be an issue with my application and not postgres at all, but I thought I'd ask here and see if maybe there is something wrong with the way I am building postgres. Thanks for any help that can be provided.

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Israel Brewster
Computer Support Technician
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293

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Received on Wed Feb 6 14:37:45 2008