Avoids displaying an additional error from strip when your cc ICEs or
fails otherwise.
compile.s = $(call maybe_exec,compile.s)
compile.S = @$(call maybe_exec,compile.S)
compile.m = @$(call maybe_exec,compile.m)
-compile-m = @$(disp_compile-m) ; $(cmd_compile-m) ; $(cmd_t_strip)
+compile-m = @$(disp_compile-m) ; $(cmd_compile-m) && $(cmd_t_strip)
do_strip = @$(disp_strip) ; $(cmd_strip)
do_t_strip= @$(disp_t_strip) ; $(cmd_t_strip)
do_unifdef= @$(disp_unifdef) ; $(cmd_unifdef)