I received the following error message when trying to compile a Verilog file with -v95 switch:
VCP2000: Syntax error
Some of the constructs such as '**' for the power operator are not available in the Verilog IEEE Std 1364-1995. If your Verilog code contains construct added to the Verilog IEEE Std 1364-2001 please change the compiler command switch from -v95 to -v2k.