* See "Building FLTK" below.
-- If building TLS support:
- * GnuTLS and its dependencies (libgcrypt, libtasn1, libgpg-error)
+ * GnuTLS
-- If building native language support (NLS):
* Gnu gettext 0.14.4 or later
libiconv and libintl included in the MinGW Developer Toolkit.
-===============================================
-Building Transport Layer Security (TLS) support
-===============================================
-
-VeNCrypt (the TigerVNC security and authentication extensions) can be built
-with TLS support, which provides built-in encryption for VNC sessions. This
-requires GnuTLS, which is readily available in many Linux distributions but not
-as readily available in binary form on other types of systems. This section
-describes the issues associated with building a version of TigerVNC with TLS
-support and how to work around those issues.
-
-
-Unix/Mac
---------
-
-In general, if you are building on a Unix-ish platform that has the GnuTLS
-libraries and include files installed in the standard system locations, then
-the TigerVNC build system should detect the system version of GnuTLS
-automatically and link against it. However, this produces a version of
-TigerVNC that depends on the GnuTLS dynamic libraries, and thus the TigerVNC
-binaries are not portable.
-
-To build a fully portable, cross-compatible version of TigerVNC with TLS
-support, it is necessary to link against the GnuTLS static library (as well
-as the static libraries of its dependencies.) If you are lucky enough, then
-your O/S distribution may include pre-packaged versions of these static
-libraries. Otherwise, it will be necessary to build GnuTLS, libgcrypt,
-libtasn1, and libgpg-error from source.
-
-You can manipulate the GNUTLS_INCLUDE_DIR and GNUTLS_LIBRARY CMake variables to
-build TigerVNC against a custom build of GnuTLS that is installed in a
-non-system directory. For instance, adding
-
- -DGNUTLS_INCLUDE_DIR=/opt/gnutls/include \
- -DGNUTLS_LIBRARY='/opt/gnutls/lib/libgnutls.a;/opt/gnutls/lib/libgcrypt.a;/opt/gnutls/lib/libgpg-error.a;/opt/gnutls/lib/libtasn1.a' \
- -DUSE_INCLUDED_ZLIB=1
-
-to the CMake or 'build-xorg build' command line will cause TigerVNC to be
-statically linked against a custom installation of GnuTLS that resides under
-/opt/gnutls. GnuTLS depends on zlib, so specifying -DUSE_INCLUDED_ZLIB=1 will
-satisfy that dependency using TigerVNC's in-tree version of zlib, which
-prevents TigerVNC from depending on the libz dynamic library.
-
-
-MinGW
------
-
-An installer containing the GnuTLS header files, as well as static and dynamic
-link libraries for 32-bit MinGW, can be downloaded from the following site:
-
-http://josefsson.org/gnutls4win/
-
-As of this writing, GnuTLS cannot be built cleanly with MinGW64 due to the fact
-that portions of the code assume an LP64 data model (Windows uses LLP64.)
-Thus, it is not possible at this time to produce a Win64 version of TigerVNC
-with TLS support.
-
-Whether you use the above installer or build GnuTLS from source, make sure that
-you install the libraries and headers into a pathname that doesn't contain
-spaces (the installer will try to install under c:\Program Files unless you
-tell it otherwise.) If the GnuTLS include path contains spaces, then the MinGW
-resource compiler will barf when you try to build TigerVNC.
-
-You can manipulate the GNUTLS_INCLUDE_DIR and GNUTLS_LIBRARY CMake variables to
-specify the directory under which you installed GnuTLS. For instance, adding
-
- -DGNUTLS_INCLUDE_DIR=/c/gnutls/include \
- -DGNUTLS_LIBRARY=/c/gnutls/lib/libgnutls.dll.a
-
-to the CMake command line when using MinGW will cause TigerVNC to be linked
-against GnuTLS DLLs that are installed under c:\gnutls.
-
-Adding
-
- -DGNUTLS_INCLUDE_DIR=/c/gnutls/include \
- -DGNUTLS_LIBRARY='/c/gnutls/lib/libgnutls.a;/c/gnutls/lib/libgcrypt.a;/c/gnutls/lib/libtasn1.a;/c/gnutls/lib/libgpg-error.a'
-
-to the CMake command line will cause TigerVNC to be statically linked against
-GnuTLS libraries that are installed under c:\gnutls.
-
-
===================
Installing TigerVNC
===================
option(ENABLE_GNUTLS "Enable protocol encryption and advanced authentication" ON)
if(ENABLE_GNUTLS)
find_package(GnuTLS)
- find_package(Gcrypt)
- find_package(Gpg_Error)
if (GNUTLS_FOUND)
include_directories(${GNUTLS_INCLUDE_DIR})
- if (GCRYPT_FOUND)
- include_directories(${GCRYPT_INCLUDE_DIR})
- set(GNUTLS_LIBRARIES ${GNUTLS_LIBRARIES};${GCRYPT_LIBRARIES})
- set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${GCRYPT_LIBRARIES})
- if (GPG_ERROR_FOUND)
- include_directories(${GPG_ERROR_INCLUDE_DIR})
- set(GNUTLS_LIBRARIES ${GNUTLS_LIBRARIES};${GPG_ERROR_LIBRARIES})
- set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${GPG_ERROR_LIBRARIES})
- endif()
- endif()
add_definitions("-DHAVE_GNUTLS")
add_definitions(${GNUTLS_DEFINITIONS})
set(CMAKE_EXTRA_INCLUDE_FILES gnutls/gnutls.h)
set(CMAKE_REQUIRED_LIBRARIES ${GNUTLS_LIBRARIES})
if(WIN32)
- set(CMAKE_EXTRA_INCLUDE_FILES gcrypt.h ${CMAKE_EXTRA_INCLUDE_FILES})
set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ws2_32 user32)
endif()
if(ZLIB_FOUND)
+++ /dev/null
-# - Find gcrypt
-# Find the native GCRYPT includes and library
-#
-# GCRYPT_FOUND - True if gcrypt found.
-# GCRYPT_INCLUDE_DIR - where to find gcrypt.h, etc.
-# GCRYPT_LIBRARIES - List of libraries when using gcrypt.
-
-if (GCRYPT_INCLUDE_DIR AND GCRYPT_LIBRARIES)
- set(GCRYPT_FIND_QUIETLY TRUE)
-endif (GCRYPT_INCLUDE_DIR AND GCRYPT_LIBRARIES)
-
-# Include dir
-find_path(GCRYPT_INCLUDE_DIR
- NAMES
- gcrypt.h
-)
-
-# Library
-find_library(GCRYPT_LIBRARY
- NAMES gcrypt
-)
-
-# handle the QUIETLY and REQUIRED arguments and set GCRYPT_FOUND to TRUE if
-# all listed variables are TRUE
-INCLUDE(FindPackageHandleStandardArgs)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(GCRYPT DEFAULT_MSG GCRYPT_LIBRARY GCRYPT_INCLUDE_DIR)
-
-IF(GCRYPT_FOUND)
- SET( GCRYPT_LIBRARIES ${GCRYPT_LIBRARY} )
-ELSE(GCRYPT_FOUND)
- SET( GCRYPT_LIBRARIES )
-ENDIF(GCRYPT_FOUND)
-
-# Lastly make it so that the GCRYPT_LIBRARY and GCRYPT_INCLUDE_DIR variables
-# only show up under the advanced options in the gui cmake applications.
-MARK_AS_ADVANCED( GCRYPT_LIBRARY GCRYPT_INCLUDE_DIR )
+++ /dev/null
-# - Find gpg-error
-# Find the native GPG_ERROR includes and library
-#
-# GPG_ERROR_FOUND - True if gpg-error found.
-# GPG_ERROR_INCLUDE_DIR - where to find gpg-error.h, etc.
-# GPG_ERROR_LIBRARIES - List of libraries when using gpg-error.
-
-if (GPG_ERROR_INCLUDE_DIR AND GPG_ERROR_LIBRARIES)
- set(GPG_ERROR_FIND_QUIETLY TRUE)
-endif (GPG_ERROR_INCLUDE_DIR AND GPG_ERROR_LIBRARIES)
-
-# Include dir
-find_path(GPG_ERROR_INCLUDE_DIR
- NAMES
- gpg-error.h
-)
-
-# Library
-find_library(GPG_ERROR_LIBRARY
- NAMES gpg-error
-)
-
-# handle the QUIETLY and REQUIRED arguments and set GPG_ERROR_FOUND to TRUE if
-# all listed variables are TRUE
-INCLUDE(FindPackageHandleStandardArgs)
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(GPG_ERROR DEFAULT_MSG GPG_ERROR_LIBRARY GPG_ERROR_INCLUDE_DIR)
-
-IF(GPG_ERROR_FOUND)
- SET( GPG_ERROR_LIBRARIES ${GPG_ERROR_LIBRARY} )
-ELSE(GPG_ERROR_FOUND)
- SET( GPG_ERROR_LIBRARIES )
-ENDIF(GPG_ERROR_FOUND)
-
-# Lastly make it so that the GPG_ERROR_LIBRARY and GPG_ERROR_INCLUDE_DIR variables
-# only show up under the advanced options in the gui cmake applications.
-MARK_AS_ADVANCED( GPG_ERROR_LIBRARY GPG_ERROR_INCLUDE_DIR )
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