[Lazarus] Lazarus on Power8 (ppc64le)

[Alfred]

Hello,

I am trying to run Lazarus on a IBM Power8 (ppc64le), OS=Debian.
Problem: it does not run.
(it does start, but errors out on an illegal free() )

Details.

Command line apps compiled native on Power8 do run.
Command line apps compiled cross-compiled from Windows to Power8 do run.
FPC rtti tests run flawless on ppc64le.

Most simple GUI (only an empty form) app cross-compiled does not run.
But they also do not generate any error. They just start and stop 
without any effect or message.
(compiled with all debug info and -O0)

Debugging with gdbserver should work (server runs ok with app), if I had 
a gdb for ppc64le on Windows.

Any ideas ?
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