rarch should compile on any POSIX-compliant system.
Before every release, rarch is compiled on the following systems/architectures to make sure it compiles without errors:

• Linux (2.2/2.4)
  • x86 (dual-processor SMP Intel Pentium III)
  • DEC Alpha (EV67)
  • PowerPC (IBM RS/6000 with PPC processor)
  • Sun Sparc (Sun Ultra60 system, sparc64)
• FreeBSD (4.3)
  • x86 (Intel Pentium III)
• Sun Solaris (8)
  • Sun Ultra Enterprise 220R
• MacOS X (10.1)
  • PowerPC (Apple Mac G4)