[openwrt/openwrt] bpf-headers: unset PKG_CONFIG_PATH

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/da668eb03bbd4290d0acf7f6cea9edcf5de51692

commit da668eb03bbd4290d0acf7f6cea9edcf5de51692
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Tue Nov 2 10:36:14 2021 +0100

    bpf-headers: unset PKG_CONFIG_PATH
    
    This fixes an issue where the kernel would pick up an incompatible target
    libyaml for building host tools
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 package/kernel/bpf-headers/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/package/kernel/bpf-headers/Makefile b/package/kernel/bpf-headers/Makefile
index 5f5b89370d..df24bfa13f 100644
--- a/package/kernel/bpf-headers/Makefile
+++ b/package/kernel/bpf-headers/Makefile
@@ -41,6 +41,8 @@ define Package/bpf-headers
   HIDDEN:=1
 endef
 
+PKG_CONFIG_PATH:=
+
 export HOST_EXTRACFLAGS=-I$(STAGING_DIR_HOST)/include
 
 KERNEL_MAKE := \