build: fix kernel headers install for uml

The kernel headers makefile needs to override LINUX_KARCH

Signed-off-by: Felix Fietkau <nbd@nbd.name>
(backported from c3a0102195a2902f1964b667fb86031308c78f9d)

diff --git a/include/kernel.mk b/include/kernel.mk
index c169550f488f45de29dfb2137a7bb29441da1855..97bcfe3f0b7d47b771f09e20ff35af55ea1cbbe0 100644 (file)
--- a/include/kernel.mk
+++ b/include/kernel.mk
@@ -97,7 +97,7 @@ endif
 
 KERNEL_MAKE = $(MAKE) $(KERNEL_MAKEOPTS)
 
-KERNEL_MAKE_FLAGS := \
+KERNEL_MAKE_FLAGS = \
        HOSTCFLAGS="$(HOST_CFLAGS) -Wall -Wmissing-prototypes -Wstrict-prototypes" \
        CROSS_COMPILE="$(KERNEL_CROSS)" \
        ARCH="$(LINUX_KARCH)" \