patch for libressl-portable for older C compilers.

[Graham Ollis]

Please find attached two patches (one against libressl-portable / 
openbsd and one against libressl-portable / portable) which allow 
libressl to build with older pre-C99 compilers that does not allow 
declarations after statements.

Thanks,
Graham

diff --git a/src/lib/libcrypto/modes/gcm128.c b/src/lib/libcrypto/modes/gcm128.c
index 69b1dd4f4..7a938ee37 100644
--- a/src/lib/libcrypto/modes/gcm128.c
+++ b/src/lib/libcrypto/modes/gcm128.c
@@ -1515,13 +1515,15 @@ int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx,const 
unsigned char *tag,
        alen = BSWAP8(alen);
        clen = BSWAP8(clen);
 #else
-       u8 *p = ctx->len.c;
+       {
+               u8 *p = ctx->len.c;
 
-       ctx->len.u[0] = alen;
-       ctx->len.u[1] = clen;
+               ctx->len.u[0] = alen;
+               ctx->len.u[1] = clen;
 
-       alen = (u64)GETU32(p)  <<32|GETU32(p+4);
-       clen = (u64)GETU32(p+8)<<32|GETU32(p+12);
+               alen = (u64)GETU32(p)  <<32|GETU32(p+4);
+               clen = (u64)GETU32(p+8)<<32|GETU32(p+12);
+       }
 #endif
 #endif
 
diff --git a/src/lib/libcrypto/x509/x509_vpm.c 
b/src/lib/libcrypto/x509/x509_vpm.c
index 348222747..3ec31caab 100644
--- a/src/lib/libcrypto/x509/x509_vpm.c
+++ b/src/lib/libcrypto/x509/x509_vpm.c
@@ -101,11 +101,11 @@ sk_deep_copy(void *sk_void, void *copy_func_void, void 
*free_func_void)
        void *(*copy_func)(void *) = copy_func_void;
        void (*free_func)(void *) = free_func_void;
        _STACK *ret = sk_dup(sk);
+       size_t i;
 
        if (ret == NULL)
                return NULL;
 
-       size_t i;
        for (i = 0; i < ret->num; i++) {
                if (ret->data[i] == NULL)
                        continue;
diff --git a/apps/openssl/compat/poll_win.c b/apps/openssl/compat/poll_win.c
index c9422b9..cc9fdac 100644
--- a/apps/openssl/compat/poll_win.c
+++ b/apps/openssl/compat/poll_win.c
@@ -44,9 +44,9 @@ conn_has_oob_data(int fd)
 static int
 is_socket(int fd)
 {
+       WSANETWORKEVENTS events;
        if (fd < 3)
                return 0;
-       WSANETWORKEVENTS events;
        return (WSAEnumNetworkEvents((SOCKET)fd, NULL, &events) == 0);
 }
 
diff --git a/crypto/compat/posix_win.c b/crypto/compat/posix_win.c
index d6e2dcb..0aacc15 100644
--- a/crypto/compat/posix_win.c
+++ b/crypto/compat/posix_win.c
@@ -29,10 +29,11 @@ FILE *
 posix_fopen(const char *path, const char *mode)
 {
        if (strchr(mode, 'b') == NULL) {
+               FILE *f;
                char *bin_mode = NULL;
                if (asprintf(&bin_mode, "%sb", mode) == -1)
                        return NULL;
-               FILE *f = fopen(path, bin_mode);
+               f = fopen(path, bin_mode);
                free(bin_mode);
                return f;
        }