--- Makefile.orig	2014-07-16 16:15:20.000000000 +0200
+++ Makefile	2014-07-16 16:15:47.000000000 +0200
@@ -3,8 +3,7 @@
 SRCS=signify.c ohash.c strlcpy.c base64.c explicit_bzero.c readpassphrase.c bcrypt_pbkdf.c ed25519.c sc25519.c ge25519.c fe25519.c arc4random.c blowfish.c hash.c blocks.c getentropy.c verify.c sha2.c shafile.c
 OBJS=$(patsubst %.c,%.o,$(SRCS))
 
-CC=gcc -D_GNU_SOURCE -D_BSD_SOURCE -DHAVE_SYS_SYSCALL_H
-CFLAGS=-Os -pipe
+CFLAGS=-Os -pipe -D_GNU_SOURCE -D_BSD_SOURCE -DHAVE_SYS_SYSCALL_H
 LDFLAGS=-s
 LDLIBS=-lcrypto