ROUTINE
-------

INT_ ug_get_arch_info
 (char arch_mode32_suffix[],
  char arch_mode64_suffix[],
  char base_arch_type[],
  char base_sys_arch_type[],
  char def_arch_mode_suffix[],
  char def_arch_type[])

DESCRIPTION
-----------

Get current architecture and OS information. Derived from uname or environment.

RETURN VALUE
---------------

0                      : No errors occurred.
<0                     : Errors occurred.

OUTPUT ARGUMENTS
---------------

arch_mode32_suffix     : Suffix for 32-bit mode architecture, e.g. -32 or blank.
arch_mode64_suffix     : Suffix for 64-bit mode architecture, e.g. -64 or blank.
base_arch_type         : Base architecture name, e.g. MaxOSX-x86.
base_sys_arch_type     : Base architecture name, e.g. MacOSX.
def_arch_mode_suffix   : Default arch_mode##_suffix, e.g. -64.
def_arch_type          : Default architecture type, e.g. MaxOSX-x86-64.
