From 9f89722644018e5949827ee18109f84fd45b41cd Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Sat, 6 Aug 2016 07:49:53 -0700
Subject: Fix issue in make dependency generation.

* Makefile (DEPGEN): We must fold the backslash continuations
before trying to delete the first dependency element,
because if the target name is long, that first element may be
on the following line, and we delete the backslash.
---
 Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 0c443a1d..8f907219 100644
--- a/Makefile
+++ b/Makefile
@@ -93,7 +93,8 @@ ABBREV = $(if $(VERBOSE),\
 ABBREV3 = $(if $(VERBOSE),@:,@printf "%s %s -> %s\n" $(1) "$(3)" $(2))
 
 define DEPGEN
-$(V)sed -e '1s/^/DEP_/' -e '1s/: [^ ]\+/ :=/' < $(1) > $(1:.d=.v)
+$(V)sed ':x; /\\$$/ { N; s/\\\n//; tx }' < $(1) | \
+  sed -e '1s/^/DEP_/' -e '1s/: [^ ]\+/ :=/' > $(1:.d=.v)
 endef
 
 define COMPILE_C
-- 
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