devel/arm-elf/gcc has been marked as broken almost three years ago, devel/arm-elf/newlib depends on it. I doubt that gdb and binutils alone are useful, especially since the ARM ecosystem moved to a newer ABI.
ok to remove? -- jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE
