Fixed extrapolation bug in Mac OSX for #1086
Fixed extrapolation bug in Mac OSX for #1086

git-svn-id: cc674101e2b794ddc2100b657215d55256e3fd48@29745 fe389314-cf27-0410-b35b-8c050e845b92

jhunkeler/hstcal,jhunkeler/hstcal,jhunkeler/hstcal