From 76cc80075089460f57cb3498077a89911a17de89 Mon Sep 17 00:00:00 2001
From: kaleb-himes <kaleb@wolfssl.com>
Date: Wed, 12 Apr 2017 11:41:36 -0600
Subject: [PATCH] update ED25519 examples based on feedback

---
 signature/ED25519/Makefile          | 4 ++--
 signature/ED25519/README            | 8 ++++++++
 signature/ED25519/gen_key_files.c   | 4 ++++
 signature/ED25519/sign_and_verify.c | 4 ++++
 4 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/signature/ED25519/Makefile b/signature/ED25519/Makefile
index 9dc7b85a..c704647c 100644
--- a/signature/ED25519/Makefile
+++ b/signature/ED25519/Makefile
@@ -15,8 +15,8 @@ LIBRARIES :=
 #example: if using custom install location add the include and lib dir to the
 #         INCLUDE_DIRS and LIBRARY_DIRS respectively
 
-#INCLUDE_DIRS += /Users/khimes/work/testDir/wolf-install-dir-for-testing/include
-#LIBRARY_DIRS += /Users/khimes/work/testDir/wolf-install-dir-for-testing/lib
+#INCLUDE_DIRS += /path-to-custom/wolf-install-dir-for-testing/include
+#LIBRARY_DIRS += /path-to-custom/wolf-install-dir-for-testing/lib
 LIBRARIES += wolfssl
 
 CPPFLAGS += $(foreach includedir,$(INCLUDE_DIRS),-I$(includedir))
diff --git a/signature/ED25519/README b/signature/ED25519/README
index 3bf1c091..cac8cb1b 100644
--- a/signature/ED25519/README
+++ b/signature/ED25519/README
@@ -1,3 +1,11 @@
+Configure and install wolfSSL with these options:
+
+./configure --enable-ed25519
+make
+make install
+
+(if any build issues due to previous installations please run 'ldconfig`)
+
 To compile without Makefile:
 
 gcc -o gen_key_files gen_key_files.c -lwolfssl
diff --git a/signature/ED25519/gen_key_files.c b/signature/ED25519/gen_key_files.c
index c33d1923..f904aae8 100644
--- a/signature/ED25519/gen_key_files.c
+++ b/signature/ED25519/gen_key_files.c
@@ -3,6 +3,10 @@
 #include <wolfssl/wolfcrypt/ed25519.h>
 #include <wolfssl/ssl.h>
 
+#ifndef HAVE_ED25519
+    #error "Please build wolfSSL with the --enable-ed25519 option"
+#endif
+
 int create_and_output_ed_key(void);
 static int err_sys(const char* msg, int es);
 
diff --git a/signature/ED25519/sign_and_verify.c b/signature/ED25519/sign_and_verify.c
index 59288107..d9f17964 100644
--- a/signature/ED25519/sign_and_verify.c
+++ b/signature/ED25519/sign_and_verify.c
@@ -8,6 +8,10 @@
 #define USE_CERT_BUFFERS_ED
 #include "test_keys.h"
 
+#ifndef HAVE_ED25519
+    #error "Please build wolfSSL with the --enable-ed25519 option"
+#endif
+
 static int err_sys(const char* msg, int es);
 
 static int err_sys(const char* msg, int es)