From 771b11f775577d9560fadd1b59640e8eec5a670f Mon Sep 17 00:00:00 2001
From: Peter Huewe <peterhuewe@gmx.de>
Date: Thu, 22 Mar 2018 22:31:06 +0100
Subject: [PATCH] Make eltt2 c99 compliant

Some implicit headerfiles were missing, if used without -std=gnu99.
Since we do not rely on gnu99 behavior by including the header files,
we can use -std=c99, which we state explicitly in the Makefile now.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 Makefile | 2 +-
 eltt2.h  | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 987ee9b..995311f 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 # Copyright (c) Infineon Technologies AG
 
 CC=gcc
-CFLAGS=-Wall -Wextra -g
+CFLAGS=-Wall -Wextra -std=c99 -g
 
 all: eltt2
 
diff --git a/eltt2.h b/eltt2.h
index e9ca42e..7cff7c0 100644
--- a/eltt2.h
+++ b/eltt2.h
@@ -67,8 +67,10 @@
 #include <fcntl.h>
 #include <errno.h>
 #include <unistd.h>
+#include <getopt.h>
 #include <ctype.h>
 #include <string.h>
+#include <strings.h>
 
 //-------------"Defines"-------------
 #define TPM_RESP_MAX_SIZE		4096			///< This is the maximum possible TPM response size in bytes.