[GENERAL] building a binary-portable database

I've filled a database on Linux and tried to bring it across to Mac OSX, and got an error: FATAL:  incorrect checksum in control file.

Exploring with pg_controldata shows differences such as:

Linux:

pg_control version number:            833

Catalog version number:               200711281

Database system identifier:           5338438316294798685

Database cluster state:               in production

pg_control last modified:             Fri 24 Jul 2009 06:37:28 PM EDT

Latest checkpoint location:           4B/5E4B2EC8

Prior checkpoint location:            4B/5E011FD8

Latest checkpoint's REDO location:    4B/5E4B2EC8

Latest checkpoint's TimeLineID:       1

Latest checkpoint's NextXID:          0/47680877

Latest checkpoint's NextOID:          24576

Latest checkpoint's NextMultiXactId:  1

Latest checkpoint's NextMultiOffset:  0

Time of latest checkpoint:            Fri 24 Jul 2009 06:34:58 PM EDT

Minimum recovery ending location:     0/0

Maximum data alignment:               8

Database block size:                  8192

Blocks per segment of large relation: 131072

WAL block size:                       8192

Bytes per WAL segment:                16777216

Maximum length of identifiers:        64

Maximum columns in an index:          32

Maximum size of a TOAST chunk:        1996

Date/time type storage:               floating-point numbers

Maximum length of locale name:        128

LC_COLLATE:                           en_US.UTF-8

LC_CTYPE:                             en_US.UTF-8

Mac:

WARNING: Calculated CRC checksum does not match value stored in file.

Either the file is corrupt, or it has a different layout than this program

is expecting.  The results below are untrustworthy.

pg_control version number:            833

Catalog version number:               200711281

Database system identifier:           5338438316294798685

Database cluster state:               in production

pg_control last modified:             Wed Dec 31 19:00:00 1969

Latest checkpoint location:           4A6A35E8/0

Prior checkpoint location:            4B/5E011FD8

Latest checkpoint's REDO location:    4B/5B2B3F28

Latest checkpoint's TimeLineID:       75

Latest checkpoint's NextXID:          1560372384/1

Latest checkpoint's NextOID:          0

Latest checkpoint's NextMultiXactId:  47680877

Latest checkpoint's NextMultiOffset:  24576

Time of latest checkpoint:            Wed Dec 31 19:00:01 1969

Minimum recovery ending location:     0/4A6A35E6

Maximum data alignment:               0

Database block size:                  8

Blocks per segment of large relation: 0

WAL block size:                       0

Bytes per WAL segment:                1093850759

Maximum length of identifiers:        8192

Maximum columns in an index:          131072

Maximum size of a TOAST chunk:        8192

Date/time type storage:               64-bit integers

Maximum length of locale name:        64

LC_COLLATE:                            

LC_CTYPE:

-- apparently, Linux uses floating-point timestamps, while Mac uses 64-bit integers.

Is there a set of options for the build which will ensure I'll be able to rsync the databases between 64-bit Linux and 64-bit Mac, both Intel ones?

Cheers,

Alexy