Improve Visual C++ compat.

src/libsodium/crypto_box/curve25519xsalsa20poly1305/ref/before_curve25519xsalsa20poly1305.c

@@ -3,7 +3,7 @@
 #include "crypto_scalarmult_curve25519.h"
 
 static const unsigned char sigma[16] = {
-    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', 'k'
+    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
 };
 static const unsigned char n[16] = {0};
 

src/libsodium/crypto_sign/ed25519/ref10/fe_isnonzero.c

@@ -9,7 +9,7 @@ Preconditions:
    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
 */
 
-static const unsigned char zero[32];
+static unsigned char zero[32];
 
 int fe_isnonzero(const fe f)
 {

src/libsodium/crypto_stream/salsa20/ref/stream_salsa20.c

@@ -9,7 +9,9 @@ Public domain.
 
 typedef unsigned int uint32;
 
-static const unsigned char sigma[16] = "expand 32-byte k";
+static const unsigned char sigma[16] = {
+    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
+};
 
 int crypto_stream(
         unsigned char *c,unsigned long long clen,

src/libsodium/crypto_stream/salsa20/ref/xor_salsa20.c

@@ -9,7 +9,9 @@ Public domain.
 
 typedef unsigned int uint32;
 
-static const unsigned char sigma[16] = "expand 32-byte k";
+static const unsigned char sigma[16] = {
+    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
+};
 
 int crypto_stream_xor(
         unsigned char *c,

src/libsodium/crypto_stream/salsa2012/ref/stream_salsa2012.c

@@ -9,7 +9,9 @@ Public domain.
 
 typedef unsigned int uint32;
 
-static const unsigned char sigma[16] = "expand 32-byte k";
+static const unsigned char sigma[16] = {
+    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
+};
 
 int crypto_stream(
         unsigned char *c,unsigned long long clen,

src/libsodium/crypto_stream/salsa2012/ref/xor_salsa2012.c

@@ -9,7 +9,9 @@ Public domain.
 
 typedef unsigned int uint32;
 
-static const unsigned char sigma[16] = "expand 32-byte k";
+static const unsigned char sigma[16] = {
+    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
+};
 
 int crypto_stream_xor(
         unsigned char *c,

src/libsodium/crypto_stream/salsa208/ref/stream_salsa208.c

@@ -9,7 +9,9 @@ Public domain.
 
 typedef unsigned int uint32;
 
-static const unsigned char sigma[16] = "expand 32-byte k";
+static const unsigned char sigma[16] = {
+        'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
+};
 
 int crypto_stream(
         unsigned char *c,unsigned long long clen,

src/libsodium/crypto_stream/salsa208/ref/xor_salsa208.c

@@ -9,7 +9,9 @@ Public domain.
 
 typedef unsigned int uint32;
 
-static const unsigned char sigma[16] = "expand 32-byte k";
+static const unsigned char sigma[16] = {
+    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
+};
 
 int crypto_stream_xor(
         unsigned char *c,

src/libsodium/crypto_stream/xsalsa20/ref/stream_xsalsa20.c

@@ -8,7 +8,9 @@ Public domain.
 #include "crypto_core_hsalsa20.h"
 #include "crypto_stream_salsa20.h"
 
-static const unsigned char sigma[16] = "expand 32-byte k";
+static const unsigned char sigma[16] = {
+    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
+};
 
 int crypto_stream(
         unsigned char *c,unsigned long long clen,

src/libsodium/crypto_stream/xsalsa20/ref/xor_xsalsa20.c

@@ -8,7 +8,9 @@ Public domain.
 #include "crypto_core_hsalsa20.h"
 #include "crypto_stream_salsa20.h"
 
-static const unsigned char sigma[16] = "expand 32-byte k";
+static const unsigned char sigma[16] = {
+    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
+};
 
 int crypto_stream_xor(
         unsigned char *c,

src/libsodium/include/sodium/utils.h

@@ -10,8 +10,8 @@
 extern "C" {
 #endif
 
-void *_sodium_alignedcalloc(unsigned char ** const unaligned_p,
-                            const size_t len);
+unsigned char *_sodium_alignedcalloc(unsigned char ** const unaligned_p,
+                                     const size_t len);
 
 SODIUM_EXPORT
 void sodium_memzero(void * const pnt, const size_t len);

src/libsodium/randombytes/salsa20/randombytes_salsa20_random.c

@@ -262,7 +262,7 @@ randombytes_salsa20_random_buf(void * const buf, const size_t size)
 #ifdef ULONG_LONG_MAX
     assert(size <= ULONG_LONG_MAX);
 #endif
-    ret = crypto_stream_salsa20(buf, (unsigned long long) size,
+    ret = crypto_stream_salsa20((unsigned char *) buf, (unsigned long long) size,
                                 (unsigned char *) &stream.nonce,
                                 stream.key);
     assert(ret == 0);

src/libsodium/sodium/core.c

@@ -1,8 +1,10 @@
 
+#include <stdbool.h>
+
 #include "core.h"
 #include "crypto_onetimeauth.h"
 
-static _Bool initialized;
+static bool initialized;
 
 int
 sodium_init(void)

src/libsodium/sodium/utils.c

@@ -27,7 +27,7 @@ sodium_memzero(void * const pnt, const size_t len)
 #endif
 }
 
-void *
+unsigned char *
 _sodium_alignedcalloc(unsigned char ** const unaligned_p, const size_t len)
 {
     unsigned char *aligned;
@@ -35,7 +35,7 @@ _sodium_alignedcalloc(unsigned char ** const unaligned_p, const size_t len)
     size_t         i;
 
     if (SIZE_MAX - (size_t) 256U < len ||
-        (unaligned = malloc(len + (size_t) 256U)) == NULL) {
+        (unaligned = (unsigned char *) malloc(len + (size_t) 256U)) == NULL) {
         *unaligned_p = NULL;
         return NULL;
     }