Description: use `dpkg-buildflags` for generic CFLAGS and LDFLAGS to use.
Author: Vincent Bernat <bernat@debian.org>

diff --git a/Makefile b/Makefile
index fab684f..b0dc5ac 100644
--- a/Makefile
+++ b/Makefile
@@ -7,9 +7,9 @@ PREFIX  = /usr/local
 BINDIR  = $(PREFIX)/bin
 MANDIR  = $(PREFIX)/share/man
 
-CFLAGS  = -O2 -g -std=c99 -fno-strict-aliasing -Wall -W -D_GNU_SOURCE
-LDFLAGS = -lssl -lcrypto -lev
+CFLAGS  = $(shell dpkg-buildflags --get CPPFLAGS) $(shell dpkg-buildflags --get CFLAGS) -std=c99 -fno-strict-aliasing -Wall -W -D_GNU_SOURCE
+LDFLAGS = $(shell dpkg-buildflags --get LDFLAGS) -lssl -lcrypto -lev
 OBJS    = stud.o ringbuffer.o
 
 all: realall