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dts/Makefile: Check for empty $(LDSCRIPT)

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Make sure that $(LDSCRIPT) is not empty before calling process_lds
with 'cat $(LDSCRIPT)' else cat will block waiting for input from
stdin.

Signed-off-by: Horst Kronstorfer <hkronsto@frequentis.com>
This commit is contained in:
Horst Kronstorfer 2012-07-12 02:58:32 +00:00 committed by Wolfgang Denk
parent 8b5a02640a
commit a4ff471970
1 changed files with 3 additions and 2 deletions
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5
dts/Makefile
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@ -67,8 +67,9 @@ $(obj)dt.o: $(DT_BIN)
# We look in the LDSCRIPT first.
# Then try the linker which should give us the answer.
# Then check it worked.
oformat=`$(call process_lds,cat $(LDSCRIPT),FORMAT)` ;\
oarch=`$(call process_lds,cat $(LDSCRIPT),ARCH)` ;\
[ -n "$(LDSCRIPT)" ] && \
oformat=`$(call process_lds,cat $(LDSCRIPT),FORMAT)` && \
oarch=`$(call process_lds,cat $(LDSCRIPT),ARCH)` ;\
\
[ -z $${oformat} ] && \
oformat=`$(call process_lds,$(GET_LDS),FORMAT)` ;\