scripts: check g++ only for host

g++ is only needed when building additonal libs on the HOST,
so check wheter g++ is available for the HOST compiler only

Signed-off-by: Bart vdr. Meulen <bartvdrmeulen@gmail.com>
[Yann E. MORIN: fix space damage]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

--- binutils/ld/ldmain.c

+++ binutils/ld/ldmain.c

@@ -273,2 +273,5 @@ main (int argc, char **argv)

   link_info.emit_hash = TRUE;

+#ifndef __mips__

+  link_info.emit_gnu_hash = TRUE;

+#endif

   link_info.callbacks = &link_callbacks;