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FPC Whole Program Optimization

How can I use Whole Program Optimization feature in Free Pascal 2.7.1 on Windows?

I get this error:

Project1.dpr(92,1) Fatal: Cannot find "nm.exe" or "" to extract symbol liveness information from linked program

Solution

  • The problem is the WPO is trying to extract symbols from your executable using NM. NM is not available for Windows.

    The good news is, Windows has DumpBin instead. I think you can use this directly in place of NM.