define the HAVE_LIBSSH2_KNOWNHOST_API to the version number 1.1.1 to make apps

know that when this define exists, the API exists. And the version number can
be used for run-time checks. 1.1.1 is not likely to be the release version as
I think we'll go with 1.2 instead but 1.1.1 OR LATER should still work.

NEWS

@@ -1,3 +1,10 @@
+* (May 29 2009) Daniel Stenberg:
+
+ - Updated the knownhost API and there are now 9 functions, and all of them
+   have man pages. The libssh2.h now defines HAVE_LIBSSH2_KNOWNHOST_API to
+   ease things for applications to check for the correct release before trying
+   to use it.
+
 * (May 23 2009) Daniel Stenberg:
 
  - Anonymous bug report #2795816 revealed that doing subsequent

include/libssh2.h

@@ -669,6 +669,7 @@ LIBSSH2_API int libssh2_base64_decode(LIBSSH2_SESSION *session, char **dest,
 LIBSSH2_API
 const char *libssh2_version(int req_version_num);
 
+#define HAVE_LIBSSH2_KNOWNHOST_API 0x010101 /* since 1.1.1 */
 
 struct libssh2_knownhost {
     unsigned int magic;  /* magic stored by the library */