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