From 91bc5784d92d549dde59ba8004e336b1f0b57fa2 Mon Sep 17 00:00:00 2001
From: ken <ken@mihrtec.com>
Date: Wed, 15 Feb 2017 19:44:06 -0800
Subject: [PATCH] missing deps error

---
 Makefile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index ad90bba..62bf119 100644
--- a/Makefile
+++ b/Makefile
@@ -62,6 +62,8 @@ ifeq (,$(filter clean,$(MAKECMDGOALS)))
 # Deps should be generated for each source file, when not cleaning
 cGENDEP = $(if $(wildcard $1),$(subst $(dir $1),,$(filter-out $1 \ %:,$(shell $(CC) -MM -MG $1))),\
 $(info [<$1>: no deps - file not found]))
+# Filter only missing deps
+cMISDEP = $(strip $(foreach dep,$(call cGENDEP,$1),$(if $(wildcard src/$(dep)),,$(dep))))
 # S2S will print the command necessary to create a file when called
 S2S  = $(if $(filter $2,$(call NEWER,$2,$3)),$(eval 4 := t),$(eval 4 :=))
 S2S += $(if $4,$(info $(call $1,$2,$3)))
@@ -78,7 +80,8 @@ cleanCMD = $(if $(wildcard $1),rm $(wildcard $(sort $1)))
 .SECONDEXPANSION:
 $(ldTRG): $$(call ldDEP,$$@) | $(hGEN) ; $(call LDCMD,$^,$@)
 %-d.o: CFLAGS+= -Og -ggdb -DDEBUG=$(DEBUG)
-%.o %-d.o: %.c $$(call cGENDEP,$$(dir $$@)%.c) ; $(call CCMD,$<,$@)
+%.o %-d.o: %.c $$(call cGENDEP,$$(dir $$@)%.c); $(call CCMD,$<,$@)
+%.o %-d.o: %.c; $(error Missing dependencies for $<: $(call cMISDEP, $<))
 %.tab.h: %.tab.c ;
 %.tab.c: %.y $$(call S2S,YCMD,%.y,$$@) ;
 %.fsm.c: %.rl $$(call S2S,RLCMD,%.rl,$$@) ;
-- 
2.18.0