--- Makefile.orig	2016-02-05 20:54:01.917438728 +0200
+++ Makefile	2016-02-09 22:48:23.383830842 +0200
@@ -12,7 +12,8 @@
 
 CFLAGS = -c -O2 -pipe \
 	-falign-functions=32 -fomit-frame-pointer -fno-strict-aliasing \
-	-W -Wimplicit -Wreturn-type -Wunused -Wformat \
+	-Wall -Wno-parentheses -Wno-sequence-point \
+	-Wextra -Wimplicit -Wreturn-type -Wunused -Wformat \
 	-Wuninitialized -Wstrict-prototypes \
 	-D_GNU_SOURCE  -D_FILE_OFFSET_BITS=64