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fdt: Ensure that libfdt_env.h comes from U-Boot
When building host utilities, we include libfdt.h from the host, not from U-Boot. This in turn brings in libfdt_env.h from the host, which can mess up the types and cause a build failure, depending on the host environment. To fix this, force inclusion of U-Boot's libfdt_env.h so that the types are correct. Another way to fix this is to use -nostdinc and -idirafter to ensure that system includes are included after U-Boot ones. Unfortunately this means that U-Boot's errno.h gets included instead of the system one. This in turn requires a hack to errno.h to redirect things, so all in all the solution in this patch is probably cleaner. Signed-off-by: Simon Glass <sjg@chromium.org>
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1 changed files with 2 additions and 1 deletions
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@ -164,7 +164,8 @@ NOPEDOBJS := $(addprefix $(obj),$(NOPED_OBJ_FILES-y))
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# Use native tools and options
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# Define __KERNEL_STRICT_NAMES to prevent typedef overlaps
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#
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HOSTCPPFLAGS = -idirafter $(SRCTREE)/include \
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HOSTCPPFLAGS = -include $(SRCTREE)/include/libfdt_env.h \
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-idirafter $(SRCTREE)/include \
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-idirafter $(OBJTREE)/include2 \
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-idirafter $(OBJTREE)/include \
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-I $(SRCTREE)/lib/libfdt \
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