projection error

[John Hagstrand]

Hello,

This projection spec works fine with proj Rel. 4.4.7, 31 March 2003.

  PROJECTION
    "proj=merc"
    "lat_ts=0.0"
    "lon_0=-90.0"
    "x_0=0.0"
    "y_0=0.0"
    "ellps=GRS80"
    "no_defs"
  END

But with proj Rel. 4.4.8, 3 May 2004, it gives me this error message:

msProcessProjection(): Projection library error. major axis or radius = 0 or
not given

I'm using MapServer version 4.0.1.
What am I missing?
Thanks
John

___________________
John Hagstrand
www.MapTeam.com
847 838 5371