[fpc-devel] Issue with Compiling FPC and MacOS Big Sur

Joubert Nel joubert at joubster.com
Thu Dec 24 17:52:15 CET 2020

I've run into the same issue, but under different circumstances.
In some sense, my scenario is simpler: I'm not compiling FPC, just
compiling my own project.
Able to work around it for my particular case and thought I'd share in case
it helps others.

When I have an "fpc.cfg" file in the directory in which I compile my
project, I get:

ld: library not found for -lc
An error occurred while linking
lox.pas(33,17) Error: Error while linking
lox.pas(33,17) Fatal: There were 1 errors compiling module, stopping
Fatal: Compilation aborted
Error: /usr/local/bin/ppcx64 returned an error exitcode

When I delete "fpc.cfg" the problem goes away.

ATTEMPTED SOLUTION: reinstall xcode command line tools & fpc compiler
1. remove xcode command line tools
      sudo rm -rf /Library/Developer/CommandLineTools/

2. reinstall xcode command line tools
      sudo xcode-select --install
      sudo xcodebuild -license accept

3. reinstall latest FPC for macOS from

However, the problem persists.

SOLUTION: not ideal, fine for me
When I delete the "fpc.cfg" file in my compilation directory, the problem
goes away.
The same error occurs if I have an ".fpc.cfg" file in my home directory so
I avoid that too.
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