build: skip kernel stack validation when building on macOS

Since we switched to 4.19, the kernel build checks for libelf to decide if
it should build tools for stack validation.

On macOS, this check fails during target/compile, but succeeds during package
build (because of the pkg-config path picking up target libraries).

Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/include/kernel.mk b/include/kernel.mk
index 8dfe903bccbb6857d36feda25bf90f80e346acf1..975cf455c4f3aefaa7e103496d4a460194215a5e 100644 (file)
--- a/include/kernel.mk
+++ b/include/kernel.mk
@@ -129,6 +129,10 @@ ifdef CONFIG_USE_SPARSE
   KERNEL_MAKEOPTS += C=1 CHECK=$(STAGING_DIR_HOST)/bin/sparse
 endif
 
+ifeq ($(HOST_OS),Darwin)
+  export SKIP_STACK_VALIDATION:=1
+endif
+
 PKG_EXTMOD_SUBDIRS ?= .
 
 define populate_module_symvers