[Lazarus] Problem with TProcessUTF8 and filenames with spaces

[zeljko]

Hi,

TCustomApplication, fpc-2.6.0

./mycmdtool --inputfile=myfile withspace.txt
GetOptionValue('i','inputfile') returns only "myfile"
same thing happens if I try:
./mycmdtool "--inputfile=myfile withspace.txt"
./mycmdtool --inputfile="myfile withspace.txt"
./mycmdtool --inputfile='myfile withspace.txt'

How to fix this (have param value with space) ? Any workarounds if it's bug in 
TCustomApplication or whatever ?

This is tested on linux, but I need it on windows too.

zeljko