LD rockbox.elf
/home/jim/git/rockbox/build-dir/apps/bitmaps/mono/default_icons.o: file not recognized: File format not recognized
collect2: ld returned 1 exit status
/home/jim/git/rockbox/tools/root.make:232: recipe for target '/home/jim/git/rockbox/build-dir/rockbox.elf' failed
make: *** [/home/jim/git/rockbox/build-dir/rockbox.elf] Error 1