Initial commit
Change-Id: I6a4444e3c193dae437cd7929f4c39aba7b749efa
diff --git a/cmake/Modules/FindGnuTLS.cmake b/cmake/Modules/FindGnuTLS.cmake
new file mode 100644
index 0000000..19c4fff
--- /dev/null
+++ b/cmake/Modules/FindGnuTLS.cmake
@@ -0,0 +1,64 @@
+# - Find gnutls
+# Find the native GNUTLS includes and library
+#
+# GNUTLS_FOUND - True if gnutls found.
+# GNUTLS_INCLUDE_DIR - where to find gnutls.h, etc.
+# GNUTLS_LIBRARIES - List of libraries when using gnutls.
+# GNUTLS_VERSION_210 - true if GnuTLS version is >= 2.10.0 (does not require additional separate gcrypt initialization)
+# GNUTLS_VERSION_212 - true if GnuTLS version is >= 2.12.0 (supports gnutls_transport_set_vec_push_function)
+# GNUTLS_VERSION_300 - true if GnuTLS version is >= 3.00.0 (x509 verification functions changed)
+# GNUTLS_VERSION_310 - true if GnuTLS version is >= 3.01.0 (stabilization branch with new APIs)
+
+if (GNUTLS_INCLUDE_DIR AND GNUTLS_LIBRARIES)
+ set(GNUTLS_FIND_QUIETLY TRUE)
+endif (GNUTLS_INCLUDE_DIR AND GNUTLS_LIBRARIES)
+
+# Include dir
+find_path(GNUTLS_INCLUDE_DIR
+ NAMES
+ gnutls.h
+ gnutls/gnutls.h
+)
+
+# Library
+find_library(GNUTLS_LIBRARY
+ NAMES gnutls
+)
+
+# handle the QUIETLY and REQUIRED arguments and set GNUTLS_FOUND to TRUE if
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(GNUTLS DEFAULT_MSG GNUTLS_LIBRARY GNUTLS_INCLUDE_DIR)
+
+IF(GNUTLS_FOUND)
+ SET( GNUTLS_LIBRARIES ${GNUTLS_LIBRARY} )
+ELSE(GNUTLS_FOUND)
+ SET( GNUTLS_LIBRARIES )
+ENDIF(GNUTLS_FOUND)
+
+# Lastly make it so that the GNUTLS_LIBRARY and GNUTLS_INCLUDE_DIR variables
+# only show up under the advanced options in the gui cmake applications.
+MARK_AS_ADVANCED( GNUTLS_LIBRARY GNUTLS_INCLUDE_DIR )
+
+# Now check if the library is recent. gnutls_hash was added in 2.10.0.
+# Also test library is even more recent. gnutls_x509_trust_list_verify_crt was added in 3.00.0.
+IF(GNUTLS_FOUND)
+ IF( NOT( "${GNUTLS_VERSION_TEST_FOR}" STREQUAL "${GNUTLS_LIBRARY}" ))
+ INCLUDE (CheckLibraryExists)
+ MESSAGE(STATUS "Checking GNUTLS version")
+ UNSET(GNUTLS_VERSION_210)
+ UNSET(GNUTLS_VERSION_210 CACHE)
+ UNSET(GNUTLS_VERSION_212)
+ UNSET(GNUTLS_VERSION_212 CACHE)
+ UNSET(GNUTLS_VERSION_300)
+ UNSET(GNUTLS_VERSION_300 CACHE)
+ UNSET(GNUTLS_VERSION_310)
+ UNSET(GNUTLS_VERSION_310 CACHE)
+ GET_FILENAME_COMPONENT(GNUTLS_PATH ${GNUTLS_LIBRARY} PATH)
+ CHECK_LIBRARY_EXISTS(gnutls gnutls_hash ${GNUTLS_PATH} GNUTLS_VERSION_210)
+ CHECK_LIBRARY_EXISTS(gnutls gnutls_transport_set_vec_push_function ${GNUTLS_PATH} GNUTLS_VERSION_212)
+ CHECK_LIBRARY_EXISTS(gnutls gnutls_x509_trust_list_verify_crt ${GNUTLS_PATH} GNUTLS_VERSION_300)
+ CHECK_LIBRARY_EXISTS(gnutls gnutls_handshake_set_timeout ${GNUTLS_PATH} GNUTLS_VERSION_310)
+ SET( GNUTLS_VERSION_TEST_FOR ${GNUTLS_LIBRARY} CACHE INTERNAL "Version the test was made against" )
+ ENDIF (NOT( "${GNUTLS_VERSION_TEST_FOR}" STREQUAL "${GNUTLS_LIBRARY}" ))
+ENDIF(GNUTLS_FOUND)