I got today the same error for psp_generator_input.F ("Sequential READ or WRITE not allowed after EOF marker, possibly use REWIND or BACKSPACE", etc) and I used gcc 4.7.2 under LInux Mint to compile nwchem 6.1.1.
Does anybody know which gcc version should I use ? The Software manager has gcc 4.4, 4.5, 4.6 and 4.7.