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-rw-r--r--arch/um/Makefile11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 133f7de2a13d..48d92bbe62e9 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -6,6 +6,17 @@
# Licensed under the GPL
#
+# select defconfig based on actual architecture
+ifeq ($(SUBARCH),x86)
+ ifeq ($(shell uname -m),x86_64)
+ KBUILD_DEFCONFIG := x86_64_defconfig
+ else
+ KBUILD_DEFCONFIG := i386_defconfig
+ endif
+else
+ KBUILD_DEFCONFIG := $(SUBARCH)_defconfig
+endif
+
ARCH_DIR := arch/um
OS := $(shell uname -s)
# We require bash because the vmlinux link and loader script cpp use bash