On alpha, <machine/exec.h> defines ELF_TARG_MACH to EM_ALPHA_EXP, unknown to elftoolchain. Add a define, value from <sys/exec_elf.h>. ok phessler@
BSD-licensed implementation of compilation tools (nm, ar, as, ld, etc.) for the ELF object format. Currently only builds libdwarf/libelf ok aja@