Replace abs() with fabs() in solver functions, with gcc this was causing integer absolute value to be used.
Replace abs() with fabs() in solver functions, with gcc this was causing integer absolute value to be used.

ibell/coolprop,CoolProp/CoolProp-museum,ibell/coolprop,ibell/coolprop,CoolProp/CoolProp-museum,CoolProp/CoolProp-museum,ibell/coolprop,ibell/coolprop,CoolProp/CoolProp-museum,ibell/coolprop,CoolProp/CoolProp-museum,CoolProp/CoolProp-museum,CoolProp/CoolProp-museum,ibell/coolprop,ibell/coolprop