[fpc-pascal] How to use external linker on windows i386

[Ondrej Pokorny]

Hello,

I am on Windows 64bit, but using the i386 compiler.

I have to link a 3rd party OBJ file with {$L 'xyz.obj'}.

With the internal linker I get these errors:
Error: COMDAT selection mode 0 not supported (section: "0")
Error: Failed reading coff file, invalid section index while reading xyz.obj
Error: Associative COMDAT section for section ".rdata" not found

So I tried to use the external linker with -Xe and I get these errors:
Linking myProgram.exe
ld: warning: directory not found for option '-L/usr/lib'
ld: warning: directory not found for option '-F/System/Library/Frameworks/'
ld: warning: option -b is obsolete and being ignored
ld: file not found: pei-i386
Error: Error while linking

I searched for any information but couldn't find any help or tutorial 
how to setup the external linker.

I tried:
I downloaded the current mingw32 binaries and registered the search path 
with:
-Xe -XRp:\software\MinGW\mingw32\bin
But it didn't not help - still the same error.

Can anybody help please?
Delphi can link the OBJ file without problems.

Thanks
Ondrej