kbuild: define DO_DEPS_ONLY for u-boot.cfg to fix build error
Since 741e58e0fc8e (Create a .cfg file containing the CONFIG options
used to build), all the Blackfin boards fail to build if the parallel
(-j) option is passed.
$ make -s bf506f-ezkit_defconfig
#
# configuration written to .config
#
$ make -j8 CROSS_COMPILE=bfin-elf-
scripts/kconfig/conf --silentoldconfig Kconfig
CHK include/config.h
UPD include/config.h
GEN include/autoconf.mk
GEN include/autoconf.mk.dep
CHK include/config/uboot.release
CHK include/generated/timestamp_autogenerated.h
UPD include/generated/timestamp_autogenerated.h
CFG u-boot.cfg
include/asm-offsets.h:3:43: fatal error:
generated/generic-asm-offsets.h: No such file or directory
compilation terminated.
make: *** [u-boot.cfg] Error 1
When parsing header files for defined CONFIG options, DO_DEPS_ONLY
must be defined to exclude generated headers that might not have
been available yet.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index ea67137..fd572f4 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -167,7 +167,7 @@
quiet_cmd_cpp_cfg = CFG $@
cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
- -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
+ -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
$(obj)/$(SPL_BIN).cfg: include/config.h
$(call if_changed,cpp_cfg)