A recent version of gawk has been successfully compiled and run "make test" on the following: Using cc: Dec Alpha OSF 4.0 HP9000/755 HP-UX 9.01 IBM PowerPC AIX 4.1.4.0 SGI IRIX 4.0.5 SGI IRIX 5.3 SunOS 4.1.3 SunOS 5.5 Other systems: DEC Alpha OSF/1 3.2 DEC Alpha Linux/AXP DECstation 5000 ULTRIX 4.3 HP 9000/735 HP-UX 10.01 IBM RS/6000 AIX 3.2 IBM SP2 AIX 4.1 NeXT Turbostation Mach 3.3 SGI Indigo/2 IRIX 5.3 SGI PowerChallenge IRIX 6.1 Sun SPARC Solaris 2.5 Sun SPARC Solaris 2.5.1 Sun SPARC SunOS 4.1.3 Sun SPARC Linux 2.0.22 Intel x86 Linux 2.1.10 Intel x86 DOS (compiler: djgpp v2, emx+gcc, and MSC 6.00A, 7, and 8) Intel x86 OS+2 (compiler: emx+gcc)