4 files changed, 9 insertions, 9 deletions
diff --git a/src/crypto/crypto.cpp b/src/crypto/crypto.cpp
index 1e39a8b04..fa7b1b580 100644
--- a/src/crypto/crypto.cpp
+++ b/src/crypto/crypto.cpp
@@ -41,7 +41,7 @@
 #include "crypto.h"
 #include "hash.h"
 
-#ifndef __FreeBSD__
+#if !defined(__FreeBSD__) && !defined(__OpenBSD__)
  #include <alloca.h>
 #else
  #include <stdlib.h>
diff --git a/src/crypto/oaes_lib.c b/src/crypto/oaes_lib.c
index c86b8caa0..7fbe96e4c 100644
--- a/src/crypto/oaes_lib.c
+++ b/src/crypto/oaes_lib.c
@@ -37,13 +37,13 @@ static const char _NR[] = {
 #include <stdlib.h>
 #include <stdio.h>
 
-// Both OS X and FreeBSD don't need malloc.h
-#if !defined(__APPLE__) && !defined(__FreeBSD__)
+// OS X, FreeBSD, and OpenBSD don't need malloc.h
+#if !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__OpenBSD__)
  #include <malloc.h>
 #endif
 
-// FreeBSD also doesn't need timeb.h
-#ifndef __FreeBSD__
+// FreeBSD, and OpenBSD also don't need timeb.h
+#if !defined(__FreeBSD__) && !defined(__OpenBSD__)
  #include <sys/timeb.h>
 #else
  #include <sys/time.h>
@@ -470,7 +470,7 @@ OAES_RET oaes_sprintf(
 #ifdef OAES_HAVE_ISAAC
 static void oaes_get_seed( char buf[RANDSIZ + 1] )
 {
-	#ifndef __FreeBSD__
+        #if !defined(__FreeBSD__) && !defined(__OpenBSD__)
 	struct timeb timer;
 	struct tm *gmTimer;
 	char * _test = NULL;
@@ -502,7 +502,7 @@ static void oaes_get_seed( char buf[RANDSIZ + 1] )
 #else
 static uint32_t oaes_get_seed(void)
 {
-	#ifndef __FreeBSD__
+        #if !defined(__FreeBSD__) && !defined(__OpenBSD__)
 	struct timeb timer;
 	struct tm *gmTimer;
 	char * _test = NULL;
diff --git a/src/crypto/slow-hash.c b/src/crypto/slow-hash.c
index 544083fb0..903a3792f 100644
--- a/src/crypto/slow-hash.c
+++ b/src/crypto/slow-hash.c
@@ -421,7 +421,7 @@ void slow_hash_allocate_state(void)
     hp_state = (uint8_t *) VirtualAlloc(hp_state, MEMORY, MEM_LARGE_PAGES |
                                         MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
 #else
-#if defined(__APPLE__) || defined(__FreeBSD__)
+#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__)
     hp_state = mmap(0, MEMORY, PROT_READ | PROT_WRITE,
                     MAP_PRIVATE | MAP_ANON, 0, 0);
 #else
diff --git a/src/crypto/tree-hash.c b/src/crypto/tree-hash.c
index e90b23841..7a128e4b0 100644
--- a/src/crypto/tree-hash.c
+++ b/src/crypto/tree-hash.c
@@ -34,7 +34,7 @@
 
 #include "hash-ops.h"
 
-#ifndef __FreeBSD__
+#if !defined(__FreeBSD__) && !defined(__OpenBSD__)
  #include <alloca.h>
 #else
  #include <stdlib.h>