kernel-defaults: fix external kernel build when user_headers is missing

[openwrt/openwrt.git] / include / kernel-defaults.mk

diff --git a/include/kernel-defaults.mk b/include/kernel-defaults.mk
index db93a53d71e42ebe2d3312ebcefceaa611fb1f72..3aa1baa7610d95f88aea10e4896e12164bda8445 100644 (file)
--- a/include/kernel-defaults.mk
+++ b/include/kernel-defaults.mk
@@ -1,9 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
-# Copyright (C) 2006-2015 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
+# Copyright (C) 2006-2020 OpenWrt.org
 
 ifdef CONFIG_STRIP_KERNEL_EXPORTS
   KERNEL_MAKEOPTS += \
@@ -24,7 +21,7 @@ Kernel/Patch:=$(Kernel/Patch/Default)
 ifneq (,$(findstring .xz,$(LINUX_SOURCE)))
   LINUX_CAT:=xzcat
 else
-  LINUX_CAT:=zcat
+  LINUX_CAT:=gzip -dc
 endif
 
 ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
@@ -46,6 +43,9 @@ else
                rmdir $(LINUX_DIR); \
        fi
        ln -s $(CONFIG_EXTERNAL_KERNEL_TREE) $(LINUX_DIR)
+       if [ -d $(LINUX_DIR)/user_headers ]; then \
+               rm -rf $(LINUX_DIR)/user_headers; \
+       fi
   endef
 endif
 
@@ -77,6 +77,7 @@ ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
        echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZO),CONFIG_INITRAMFS_COMPRESSION_LZO=y\nCONFIG_RD_LZO=y,# CONFIG_INITRAMFS_COMPRESSION_LZO is not set\n# CONFIG_RD_LZO is not set)" >> $(LINUX_DIR)/.config
        echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_XZ),CONFIG_INITRAMFS_COMPRESSION_XZ=y\nCONFIG_RD_XZ=y,# CONFIG_INITRAMFS_COMPRESSION_XZ is not set\n# CONFIG_RD_XZ is not set)" >> $(LINUX_DIR)/.config
        echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZ4),CONFIG_INITRAMFS_COMPRESSION_LZ4=y\nCONFIG_RD_LZ4=y,# CONFIG_INITRAMFS_COMPRESSION_LZ4 is not set\n# CONFIG_RD_LZ4 is not set)" >> $(LINUX_DIR)/.config
+       echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_ZSTD),CONFIG_INITRAMFS_COMPRESSION_ZSTD=y\nCONFIG_RD_STD=y,# CONFIG_INITRAMFS_COMPRESSION_ZSTD is not set\n# CONFIG_RD_ZSTD is not set)" >> $(LINUX_DIR)/.config
   endef
 else
 endif