--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/3rdparty/vmime/cmake/FindGSasl.cmake	Tue Aug 17 11:19:54 2021 +0200
@@ -0,0 +1,51 @@
+# - Try to find the GNU sasl library (gsasl)
+#
+# Once done this will define
+#
+#  GNUTLS_FOUND - System has gnutls
+#  GNUTLS_INCLUDE_DIR - The gnutls include directory
+#  GNUTLS_LIBRARIES - The libraries needed to use gnutls
+#  GNUTLS_DEFINITIONS - Compiler switches required for using gnutls
+
+# Adapted from FindGnuTLS.cmake, which is:
+#   Copyright 2009, Brad Hards, <bradh@kde.org>
+#
+# Changes are Copyright 2009, Michele Caini, <skypjack@gmail.com>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+
+IF (GSASL_INCLUDE_DIR AND GSASL_LIBRARIES)
+   # in cache already
+   SET(GSasl_FIND_QUIETLY TRUE)
+ENDIF (GSASL_INCLUDE_DIR AND GSASL_LIBRARIES)
+
+IF (NOT WIN32)
+   # use pkg-config to get the directories and then use these values
+   # in the FIND_PATH() and FIND_LIBRARY() calls
+   find_package(PkgConfig)
+   pkg_check_modules(PC_GSASL libgsasl)
+   SET(GSASL_DEFINITIONS ${PC_GSASL_CFLAGS_OTHER})
+ENDIF (NOT WIN32)
+
+FIND_PATH(GSASL_INCLUDE_DIR gsasl.h
+   HINTS
+   ${PC_GSASL_INCLUDEDIR}
+   ${PC_GSASL_INCLUDE_DIRS}
+   PATH_SUFFIXES gsasl
+   )
+
+FIND_LIBRARY(GSASL_LIBRARIES NAMES gsasl libgsasl
+    HINTS
+    ${PC_GSASL_LIBDIR}
+    ${PC_GSASL_LIBRARY_DIRS}
+  )
+
+INCLUDE(FindPackageHandleStandardArgs)
+
+# handle the QUIETLY and REQUIRED arguments and set GSASL_FOUND to TRUE if 
+# all listed variables are TRUE
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(GSASL DEFAULT_MSG GSASL_LIBRARIES GSASL_INCLUDE_DIR)
+
+MARK_AS_ADVANCED(GSASL_INCLUDE_DIR GSASL_LIBRARIES)