or1k-elf-gcc -B/home/olof/code/or1k/tc/build-newlib/or1k-elf/newlib/ -isystem /home/olof/code/or1k/tc/build-newlib/or1k-elf/newlib/targ-include -isystem /home/olof/code/or1k/tc/newlib-2.2.0.20150225/newlib/libc/include -B/home/olof/code/or1k/tc/build-newlib/or1k-elf/libgloss/or1k -L/home/olof/code/or1k/tc/build-newlib/or1k-elf/libgloss/libnosys -L/home/olof/code/or1k/tc/newlib-2.2.0.20150225/libgloss/or1k    -g -O2 -O2 -I. -I../../../../newlib-2.2.0.20150225/libgloss/or1k/.. -c -g -O2 ../../../../newlib-2.2.0.20150225/libgloss/or1k/syscalls.c
../../../../newlib-2.2.0.20150225/libgloss/or1k/syscalls.c:127:1: error: conflicting types for ‘_open_r’
 _open_r(struct _reent *reent, char *file, int flags, int mode)
 ^
In file included from ../../../../newlib-2.2.0.20150225/libgloss/or1k/syscalls.c:20:0:
/home/olof/code/or1k/tc/newlib-2.2.0.20150225/newlib/libc/include/reent.h:151:12: note: previous declaration of ‘_open_r’ was here
 extern int _open_r _PARAMS ((struct _reent *, const char *, int, int));
            ^