JCL uses dcc32 to compile build.dpr, and if it wasn't found you won't get the error "'dcc32.exe not found'" you'll get something like that

  • ======= FAILED =======

    Delphi Compiler for Win32 (dcc32.exe) was not found. Please add the
    echo Delphi\Bin directory to the PATH environment     variable.

    You can do this by executing
    'SET PATH=C:\Program Files\Borland\Delphi7\Bin;%%PATH%%'
    (Adjust the directories to your installation path)


Although if it worked for D7 (found dcc32) it should have worked for BDS8.. :/ and when JEDI-JCL installation appears you can install it for both development systems at once (you will see 2 tags one with D7 options and one for BDS.