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>
diff --git a/arch/nds32/config.mk b/arch/nds32/config.mk
index 550f8a4..0cbc4ad 100644
--- a/arch/nds32/config.mk
+++ b/arch/nds32/config.mk
@@ -8,7 +8,9 @@
#
# SPDX-License-Identifier: GPL-2.0+
-CROSS_COMPILE ?= nds32le-linux-
+ifeq ($(CROSS_COMPILE),)
+CROSS_COMPILE := nds32le-linux-
+endif
CONFIG_STANDALONE_LOAD_ADDR = 0x300000 -T $(srctree)/$(src)/nds32.lds