From d839b8b46094dd27de5c7a9d01e8cfdc0c2af9c7 Mon Sep 17 00:00:00 2001
From: Kamil Cudnik <kcudnik@gmail.com>
Date: Wed, 21 Nov 2018 16:34:23 +0100
Subject: [PATCH] Add binary check in meta Makefile (#891)

---
 meta/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/meta/Makefile b/meta/Makefile
index ba9fb9b38..b18386596 100644
--- a/meta/Makefile
+++ b/meta/Makefile
@@ -63,6 +63,10 @@ WARNINGS = \
 	-Wvariadic-macros \
 	-Wwrite-strings
 
+BINS = doxygen perl dot
+
+$(foreach bin,$(BINS),$(if $(shell which $(bin)),,$(error "Missing $(bin) in PATH")))
+
 CFLAGS += -I../inc -I../experimental $(WARNINGS)
 
 DEPS = $(wildcard ../inc/*.h) $(wildcard ../experimental/*.h)