build: fix external module symbol collection if build_dir is a symlink

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

diff --git a/include/kernel.mk b/include/kernel.mk
index 3195090a0a79795bd4f629fae963c251c6c18a4b..8dfe903bccbb6857d36feda25bf90f80e346acf1 100644 (file)
--- a/include/kernel.mk
+++ b/include/kernel.mk
@@ -141,7 +141,10 @@ endef
 
 define collect_module_symvers
        for subdir in $(PKG_EXTMOD_SUBDIRS); do \
-               grep -F $$$$(readlink -f $(PKG_BUILD_DIR)) $(PKG_BUILD_DIR)/$$$$subdir/Module.symvers >> $(PKG_BUILD_DIR)/Module.symvers.tmp; \
+               realdir=$$$$(readlink -f $(PKG_BUILD_DIR)); \
+               grep -F $(PKG_BUILD_DIR) $(PKG_BUILD_DIR)/$$$$subdir/Module.symvers >> $(PKG_BUILD_DIR)/Module.symvers.tmp; \
+               [ "$(PKG_BUILD_DIR)" = "$$$$realdir" ] || \
+                       grep -F $$$$realdir $(PKG_BUILD_DIR)/$$$$subdir/Module.symvers >> $(PKG_BUILD_DIR)/Module.symvers.tmp; \
        done; \
        sort -u $(PKG_BUILD_DIR)/Module.symvers.tmp > $(PKG_BUILD_DIR)/Module.symvers; \
        mv $(PKG_BUILD_DIR)/Module.symvers $(PKG_INFO_DIR)/$(PKG_NAME).symvers