commit f0ac9e04db3e8d3eda1f711e4de5edf09aeeba2b
author Masahiro Yamada <yamada.m@jp.panasonic.com> Fri Feb 28 14:33:30 2014 +0900
committer Tom Rini <trini@ti.com> Tue Mar 04 12:15:30 2014 -0500
tree aba046ec8f727fe744034100c5916af4186d4fd8
parent 933c7e0c661a810efd898e3dbe67d938ec6e2d4d

kbuild: fix CROSS_COMPILE settings in config.mk

The syntax
  CROSS_COMIPLE ?= <cross_compiler_prefix>
does not work because config.mk is parsed after
exporting CROSS_COMPILE.

Like Linux Kernel's arch/$(ARCH)/Makefile,
we must write as follows:

  ifeq ($(CROSS_COMPILE),)
  CROSS_COMPILE := <cross_compiler_prefix>
  endif

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

arch/nios2/config.mk

diff --git a/arch/nios2/config.mk b/arch/nios2/config.mk
index 7d546ef..65a5a40 100644
--- a/arch/nios2/config.mk
+++ b/arch/nios2/config.mk
@@ -6,7 +6,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CROSS_COMPILE ?= nios2-elf-
+ifeq ($(CROSS_COMPILE),)
+CROSS_COMPILE := nios2-elf-
+endif
 
 CONFIG_STANDALONE_LOAD_ADDR ?= 0x02000000