RPISoft UART compile error - Raspberry Pi Forums

hello,
use second uart port on pi.
unfortunately can't use usb serial adapter.
found "patch" on github https://github.com/themrleon/rpisoft-uart.
set xubuntu cross compiler. used tutorial: http://sysprogs.com/visualkernel/tutori ... ildkernel/
after configuring kernel, tried add patch in kernel, failed.
here output:

code: select all

make -c /root/src/linux/ m=/root/src/rpisoft-uart-master modules arch=arm cross_compile= make[1]: verzeichnis »/root/src/linux« wird betreten    warning: symbol version dump ./module.symvers            missing; modules have no dependencies , modversions.    cc [m]  /root/src/rpisoft-uart-master/softuart.o gcc: error: unrecognized argument in option ‘-mabi=aapcs-linux’ gcc: note: valid arguments ‘-mabi=’ are: ms sysv gcc: error: unrecognized command line option ‘-mlittle-endian’ gcc: error: unrecognized command line option ‘-mapcs’ gcc: error: unrecognized command line option ‘-mno-sched-prolog’ gcc: error: unrecognized command line option ‘-mno-thumb-interwork’ gcc: error: unrecognized command line option ‘-mfpu=vfp’ make[2]: *** [/root/src/rpisoft-uart-master/softuart.o] fehler 1 make[1]: *** [_module_/root/src/rpisoft-uart-master] fehler 2 make[1]: verzeichnis »/root/src/linux« wird verlassen make: *** [all] fehler 2 

found annotation in readme file in github:

updated (june 2016)

tag 1.0 released , pull request accept on master branch, seems new raspberry pi toolchain can't understand of old symbols, hardcoded

can me problem?

raspberrypi