"VV" == Vladimir Volovich writes: WK> Are there "aix-7.3.7x-binaries" meanwhile? VV> I was making AIX binaries for TL7, and can remake them if needed. VV> Shall i use source or source.development for build? the AIX binaries which are currently in perforce Master tree are based on Web2C 7.3.7x. $ ./tex This is TeX, Version 3.14159 (Web2C 7.3.7x) **^C Best, v.