Upgrade libssh2 to 1.11.0

libssh2/cmake/Findwolfssl.cmake

@@ -0,0 +1,41 @@
+# - Try to find wolfssl
+# Once done this will define
+#  WOLFSSL_FOUND           - System has wolfssl
+#  WOLFSSL_INCLUDE_DIR     - The wolfssl include directories
+#  WOLFSSL_LIBRARIES       - The libraries needed to use wolfssl
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_WOLFSSL QUIET wolfssl)
+
+find_path(WOLFSSL_INCLUDE_DIR
+  NAMES wolfssl/ssl.h
+  HINTS ${PC_WOLFSSL_INCLUDE_DIRS}
+)
+find_library(WOLFSSL_LIBRARY
+  NAMES wolfssl
+  HINTS ${PC_WOLFSSL_LIBRARY_DIRS}
+)
+
+if(WOLFSSL_INCLUDE_DIR)
+  set(_version_regex "^#define[ \t]+LIBWOLFSSL_VERSION_STRING[ \t]+\"([^\"]+)\".*")
+  file(STRINGS "${WOLFSSL_INCLUDE_DIR}/wolfssl/version.h"
+    WOLFSSL_VERSION REGEX "${_version_regex}")
+  string(REGEX REPLACE "${_version_regex}" "\\1"
+    WOLFSSL_VERSION "${WOLFSSL_VERSION}")
+  unset(_version_regex)
+endif()
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set WOLFSSL_FOUND
+# to TRUE if all listed variables are TRUE and the requested version
+# matches.
+find_package_handle_standard_args(wolfssl REQUIRED_VARS
+                                  WOLFSSL_LIBRARY WOLFSSL_INCLUDE_DIR
+                                  VERSION_VAR WOLFSSL_VERSION)
+
+if(WOLFSSL_FOUND)
+  set(WOLFSSL_LIBRARIES     ${WOLFSSL_LIBRARY})
+  set(WOLFSSL_INCLUDE_DIRS  ${WOLFSSL_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(WOLFSSL_INCLUDE_DIR WOLFSSL_LIBRARY)