Updated patch for new SSH2 version.

patch/ssh2_session.diff

@@ -1,17 +1,20 @@
-diff --git "a/D:\\_Sandbox\\curl\\libssh2-x64\\src\\session.c.orig" "b/D:\\_Sandbox\\curl\\libssh2-x64\\src\\session.c"
-index e439acd..476a497 100644
---- "a/src/session.c"
-+++ "b/src/session.c"
-@@ -58,6 +58,8 @@
- #include "mac.h"
- #include "misc.h"
+ src/session.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/src/session.c b/src/session.c
+index a4d602b..e653f1d 100644
+--- a/src/session.c
++++ b/src/session.c
+@@ -66,6 +66,8 @@
+ #undef libssh2_usec_t
+ #endif
  
 +#define DIFFTIME(_b,_a) ((double)((_b) - (_a)))
 +
  /* libssh2_default_alloc
   */
  static
-@@ -610,7 +612,7 @@ int _libssh2_wait_socket(LIBSSH2_SESSION *session, time_t start_time)
+@@ -602,7 +604,7 @@ int _libssh2_wait_socket(LIBSSH2_SESSION *session, time_t start_time)
          (seconds_to_next == 0 ||
           ms_to_next > session->api_timeout)) {
          time_t now = time(NULL);