emit proper error messages if important kernel config files are missing

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15352 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/include/target.mk b/include/target.mk
index 5484592..a554386 100644 (file)
--- a/include/target.mk
+++ b/include/target.mk
@@ -119,7 +119,13 @@ LINUX_SUBCONFIG?=$(firstword $(wildcard $(PLATFORM_SUBDIR)/config-$(KERNEL_PATCH
 ifeq ($(LINUX_CONFIG),$(LINUX_SUBCONFIG))
   LINUX_SUBCONFIG:=
 endif
-LINUX_CONFCMD=$(if $(LINUX_CONFIG),$(SCRIPT_DIR)/kconfig.pl + $(GENERIC_LINUX_CONFIG) $(if $(LINUX_SUBCONFIG),+ $(LINUX_CONFIG) $(LINUX_SUBCONFIG),$(LINUX_CONFIG)),true)
+LINUX_CONFCMD=$(if $(LINUX_CONFIG), \
+       $(if $(GENERIC_LINUX_CONFIG),,$(error The generic kernel config for your kernel version is mising)) \
+       $(if $(LINUX_CONFIG),,$(error The target kernel config for your kernel version is mising)) \
+       $(SCRIPT_DIR)/kconfig.pl \
+               + $(GENERIC_LINUX_CONFIG) \
+               $(if $(LINUX_SUBCONFIG),+ $(LINUX_CONFIG) $(LINUX_SUBCONFIG),$(LINUX_CONFIG)), \
+       true)
 
 ifeq ($(DUMP),1)
   BuildTarget=$(BuildTargets/DumpCurrent)