Wrap <stdint.h> in #ifdef HAVE_STDINT_H.

xmss_commons.c

@@ -10,7 +10,9 @@ Public domain.
 #include "xmss_commons.h"
 #include <stdlib.h>
 #include <stdio.h>
+#ifdef HAVE_STDINT_H
 #include <stdint.h>
+#endif
 
 void to_byte(unsigned char *out, unsigned long long in, uint32_t bytes)
 {

xmss_commons.h

@@ -8,7 +8,9 @@ Public domain.
 #define XMSS_COMMONS_H
 
 #include <stdlib.h>
+#ifdef HAVE_STDINT_H
 #include <stdint.h>
+#endif
 
 void to_byte(unsigned char *output, unsigned long long in, uint32_t bytes);
 #if 0

xmss_fast.c

@@ -10,7 +10,9 @@ Public domain.
 #include "xmss_fast.h"
 #include <stdlib.h>
 #include <string.h>
+#ifdef HAVE_STDINT_H
 #include <stdint.h>
+#endif
 
 #include "crypto_api.h"
 #include "xmss_wots.h"

xmss_hash.c

@@ -12,7 +12,9 @@ Public domain.
 #include "xmss_hash.h"
 
 #include <stddef.h>
+#ifdef HAVE_STDINT_H
 #include <stdint.h>
+#endif
 #include <stdio.h>
 #include <string.h>
 #include <openssl/sha.h>

xmss_hash_address.c

@@ -6,7 +6,9 @@ Public domain.
 */
 #include "includes.h"
 
+#ifdef HAVE_STDINT_H
 #include <stdint.h>
+#endif
 #include "xmss_hash_address.h"	/* prototypes */
 
 void setLayerADRS(uint32_t adrs[8], uint32_t layer){

xmss_hash_address.h

@@ -5,7 +5,9 @@ Joost Rijneveld
 Public domain.
 */
 
+#ifdef HAVE_STDINT_H
 #include <stdint.h>
+#endif
 
 void setLayerADRS(uint32_t adrs[8], uint32_t layer);
 

xmss_wots.c

@@ -8,7 +8,9 @@ Public domain.
 #include "includes.h"
 
 #include <stdlib.h>
+#ifdef HAVE_STDINT_H
 #include <stdint.h>
+#endif
 #include <limits.h>
 #include "xmss_commons.h"
 #include "xmss_hash.h"

xmss_wots.h

@@ -8,7 +8,9 @@ Public domain.
 #ifndef WOTS_H
 #define WOTS_H
 
+#ifdef HAVE_STDINT_H
 #include "stdint.h"
+#endif
 
 /**
  * WOTS parameter set