From 648650d64c6777240f5e9e8ba5b005e7b6f415c3 Mon Sep 17 00:00:00 2001
From: Antonio Ospite <ao2@ao2.it>
Date: Sat, 10 Oct 2020 19:01:56 +0200
Subject: [PATCH] Makefile: ignore warnings in OpenCV headers

OpenCV header files were triggering a lot of warnings because of the
strict compiler flags set for the project.

Instead of disabling the warnings treat the OpenCV headers as system
dependencies, this way the compiler will ignore warnings on them but
will still apply the warnings to the project code.
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 75dde40..bd0d850 100644
--- a/Makefile
+++ b/Makefile
@@ -34,7 +34,7 @@ ifeq ($(COMPILER), clang)
   LDFLAGS += -Qunused-arguments
 endif
 
-CXXFLAGS += $(shell pkg-config --cflags opencv4)
+CXXFLAGS += $(shell pkg-config --cflags opencv4 | sed -e 's/-I/-isystem/g')
 LDLIBS += $(shell pkg-config --libs opencv4)
 
 LINK.o = $(LINK.cpp)
-- 
2.1.4