dts/Makefile: Check for empty $(LDSCRIPT)
Make sure that $(LDSCRIPT) is not empty before calling process_lds
with 'cat $(LDSCRIPT)' else cat will block waiting for input from
stdin.
Signed-off-by: Horst Kronstorfer <hkronsto@frequentis.com>
diff --git a/dts/Makefile b/dts/Makefile
index 055b8ac..50f9066 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -67,8 +67,9 @@
# We look in the LDSCRIPT first.
# Then try the linker which should give us the answer.
# Then check it worked.
- oformat=`$(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)` ;\