I'm unable to compile POCO 1.3.3 RC1 on my Mac running OSX 10.5.5 by following the instructions in the README file since there doesn't appear an appropriate config file available and I'm too much of a "make challenged" newbie to make one myself.
I prefer using XCode anyway and for starters was able to build and test Foundation as a static lib . But I did have to make some changes to the Foundation source in order to compile without error using XCode 2.5
In File_UNIX.h, Poco/Timestamp.h had to be included ( it is there in File_WIN32.h )
In File_UNIX.cpp, Poco/Path.h had to be included
In DirectoryIterator_UNIX.cpp, Poco/File.h had to be included
In Thread_POSIX.cpp, #undef PAGE_SIZE
In UUID.h, #undef nil
In pcre_internal.h #define BOOL int
I also successfully built Foundation as a static lib using XCode 3.1 but ran into a bunch of linker errors that I can't figure out yet while trying to run the FoundationTestSuite.