From: Horst Kronstorfer <hkronsto@frequentis.com>
Date: Thu, 12 Jul 2012 02:58:32 +0000 (+0000)
Subject: dts/Makefile: Check for empty $(LDSCRIPT)
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=a4ff471970e8f749dc16643ee7e354a3fcfa2ad7;p=u-boot.git

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 055b8ac599..50f9066115 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -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)` ;\