BCB50에서는 project.bpk.xml 의 이 라인에
    <PFLAGS value="..."/>
   
'-LUvcl50 '를 붙이면 된다는 글을 찾아 냈는데여
    <PFLAGS value="... -LUvcl50"/>

BCB60에서는 어떻게 해야 할까요?
(만일을 위해 컴포넌트를 같이 올립니다. )
////////////////////////////////////////////////////////원래 글

Error message: [Pascal Fatal Error] file.pas(line #): File not found: 'DsgnIntf.dcu'
Posted: October 17, 2000
Problem: When I try to install a Delphi component I get the above error message. The error refers to a file DsgnIntf.dcu in the Uses section of the source code but I don't have the file. What do I do?

Solution: Apparently, the file DsgnIntf.dcu is proprietary and isn't distributed with newer versions of BCB and Delphi. The problem and solution are described in the "Using C++Builder" help file in the section

Upgrading to Borland C++Builder 5
VCL and global functions
Compiling packages with DsgnIntf.pas.
In short, click on the menu option Project > Edit Option Source to to open project.bpk.xml. Then find the line

    <PFLAGS value="..."/>
   
and append option -LUvcl50 so it looks like
    <PFLAGS value="... -LUvcl50"/>
   
Finally, choose File > Save all and Project > Make ... to rebuild and install the component.