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-rw-r--r--Makefile.inc10
1 files changed, 7 insertions, 3 deletions
diff --git a/Makefile.inc b/Makefile.inc
index 3e21bc1df9..5cd13ba6f4 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -306,7 +306,7 @@ cbfs-files-processor-nvramtool= \
mv $(2).tmp $(2))
#######################################################################
-# Reduce a .config file by removing lines about unset booleans
+# Reduce a .config file by removing lines about default unset booleans
# arg1: input
# arg2: output
define cbfs-files-processor-config
@@ -314,8 +314,12 @@ define cbfs-files-processor-config
+printf " CREATE $(2) (from $(1))\n"; \
printf "# This image was built using coreboot " > $(2).tmp && \
grep "\<COREBOOT_VERSION\>" $(obj)/build.h |cut -d\" -f2 >> $(2).tmp && \
- sed -e '/^CONFIG/!d' $(1) >> $(2).tmp && \
- \mv -f $(2).tmp $(2))
+ $(MAKE) DOTCONFIG=$(1) DEFCONFIG=$(2).tmp2 savedefconfig && \
+ cat $(2).tmp2 >> $(2).tmp && \
+ printf "# End of defconfig. Derivable values start here.\n" >> $(2).tmp && \
+ grep "^CONFIG" $(1) | grep -F -v -f $(2).tmp2 >> $(2).tmp && \
+ rm -f $(2).tmp2 && \
+ mv -f $(2).tmp $(2))
endef
#######################################################################