Error: Parameter user_offset_enable is not supported for WYSIWYG primitive "sdl"

Description

You may see this error in the Quartus® II software version 9.0 SP2 and earlier for designs targeting Stratix® IV devices when using the ALTTEMP_SENSE megafunction.

This problem only affects ALTTEMP_SENSE megafunction variation files generated in VHDL.

To work around this problem, perform either of the following steps:

• Regenerate the ALTTEMP_SENSE megafunction variation file in Verilog HDL, which is unaffected by this problem
• Comment out line 73 from the ALTTEMP_SENSE megafunction VHDL variation file (.vhd)
  user_offset_enable : STRING := "off";

This problem is fixed beginning with the Quartus II software version 10.0.