linux-elf.h (MULTILIB_DEFAULTS): Remove definition.

2013-08-20  Matthew Gretton-Dann  <matthew.gretton-dann@linaro.org>

	* config/arm/linux-elf.h (MULTILIB_DEFAULTS): Remove definition.
	* config/arm/t-linux-eabi (MULTILIB_OPTIONS): Document association
	with MULTLIB_DEFAULTS.

From-SVN: r201879

gcc/ChangeLog

+2013-08-20  Matthew Gretton-Dann  <matthew.gretton-dann@linaro.org>
+
+	* config/arm/linux-elf.h (MULTILIB_DEFAULTS): Remove definition.
+	* config/arm/t-linux-eabi (MULTILIB_OPTIONS): Document association
+	with MULTLIB_DEFAULTS.
+
 2013-08-20  Nick Clifton  <nickc@redhat.com>
 
 	* target.def (narrow_volatile_bitfield): Note that the default

gcc/config/arm/linux-elf.h

@@ -44,9 +44,9 @@
 
 #define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
 
+/* We do not have any MULTILIB_OPTIONS specified, so there are no
+   MULTILIB_DEFAULTS.  */
 #undef  MULTILIB_DEFAULTS
-#define MULTILIB_DEFAULTS \
-	{ "marm", "mlittle-endian", "mfloat-abi=hard", "mno-thumb-interwork" }
 
 /* Now we define the strings used to build the spec file.  */
 #undef  LIB_SPEC

gcc/config/arm/t-linux-eabi

@@ -18,6 +18,8 @@
 
 # We do not build a Thumb multilib for Linux because the definition of
 # CLEAR_INSN_CACHE in linux-gas.h does not work in Thumb mode.
+# If you set MULTILIB_OPTIONS to a non-empty value you should also set
+# MULTILIB_DEFAULTS in linux-elf.h.
 MULTILIB_OPTIONS	=
 MULTILIB_DIRNAMES	=