x86-64.h: Append --32 to the assembler options when -m16 is used on non-glibc systems as well.

	* config/i386/x86-64.h: Append --32 to the assembler options when
	-m16 is used on non-glibc systems as well.

From-SVN: r243528

gcc/ChangeLog

+2016-12-11  Roger Pau Monné  <roger.pau@citrix.com>
+
+	* config/i386/x86-64.h: Append --32 to the assembler options when
+	-m16 is used on non-glibc systems as well.
+
 2016-12-10  Allan Sandfeld Jensen  <allan.jensen@qt.io>
 
 	PR target/70118

gcc/config/i386/x86-64.h

@@ -49,7 +49,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define WCHAR_TYPE_SIZE 32
 
 #undef ASM_SPEC
-#define ASM_SPEC "%{m32:--32} %{m64:--64} %{mx32:--x32}"
+#define ASM_SPEC "%{m16|m32:--32} %{m64:--64} %{mx32:--x32}"
 
 #undef ASM_OUTPUT_ALIGNED_BSS
 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \