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====== Building X2Go Client on Mac OS ======

===== Build X2Go Client using MacPorts =====

X2Go Client is available from MacPorts, maintained by Clemens Lang, who currently also builds the official X2Go Client DMGs.

If you just want to get a working version of X2Go Client you can just run ''sudo port install x2goclient''.

If you want to build a re-distributable DMG image such as the one available from the website, follow these steps (assuming you already have MacPorts installed):

**Steps summarized:**

  - Install the dependencies for X2Go Client
  - Install the build-time dependency dylibbundler
  - Get X2Go Client from X2Go Git
  - Build X2Go Client DMG image

So, first install the X2Go Client dependencies and dylibbundler:

<code>
$ sudo port install depof:x2goclient dylibbundler
</code>

Once the dependencies are installed, tweak some file permissions:

<code>
$ sudo chmod u+w /opt/local/lib/libcrypto.1.0.0.dylib /opt/local/lib/libssl.1.0.0.dylib
</code>

If you omit the file permission tweak, dylibbundler will fail to bundle OpenSSL with X2Go Client.

At last, checkout X2Go Client from Git:
<code>
$ git clone git://code.x2go.org/x2goclient.git
</code>

If you want to build a specific version of X2Go Client, select that version with ''git checkout <version>''. If you want to look around what versions are available, use ''git tag'' which will present you a list of valid version tags to use for checkout.

In the X2Go Client source directory, simply run the ''macbuild.sh'' script. Depending on your OS and your needs, you might want to adjust the lines mentioning ''QMAKE_MAC_SDK'', ''QMAKE_MACOSX_DEPLOYMENT_TARGET'' and the ''CONFIG'' line that contains the target architectures. Once done, run

<code>
$ ./macbuild.sh
</code>

to generate ''x2goclient.dmg''.
     
===== Build/Install X2Go Client using Homebrew =====

X2Go Client and it's dependencies are already formulated in Homebrew (thanks to Eugene San).

We assume you've already installed Homebrew.
If not, please visit the [[http://brew.sh|Homebrew website]].

It is possible to install X2Go Client in one command: <code>$ brew install x2goclient</code>
     
     
===== Build X2Go Client from Scratch =====

==== Variables ====

This document makes use of several variables to address paths in a generic, but distinct way. They are not meant to be used via shell, but for human parsing. No program of the x2go suite actually uses them for anything. You may "set" them to whatever value you want to (in your head), just don't change them half-way through the building process. The "default value" is merely a suggestion.

^ Name ^ Description ^ Default value ^
| $X2GO_BASE_DIR | Parent directory of the x2goclient source tree | /usr/src |
| $X2GO_CLIENT_DIR | Directory containing the x2goclient source tree | $X2GO_BASE_DIR/x2goclient-git |
| $X2GO_DIST_SRC | Directory containing x2goclient dependencies source trees | $X2GO_CLIENT_DIR/dist |
| $X2GO_DIST_INST | Installation directory of x2goclient dependencies | $X2GO_DIST_SRC/inst |
| $NX_BASE_DIR | Common NX directory | /usr/src/NX |
| $NX_LIBS_SRC | Directory containing the NX libs source tree | $NX_BASE_DIR/nx-libs-src |
| $NX_DIST_SRC | Directory containing NX libs dependencies source trees | $NX_BASE_DIR/dist |
| $NX_DIST_INST | Installation directory of NX libs dependencies | $NX_DIST_SRC/inst |

==== Get the sources ====

=== x2goclient ===

Prepare $X2GO_BASE_DIR if need be.

<code>
# mkdir -p "$X2GO_BASE_DIR"
# cd "$X2GO_BASE_DIR"
</code>

Fetch the x2goclient sources.

<code>
# git clone git://code.x2go.org/x2goclient.git x2goclient-git
</code>

Prepare the dependencies directories.

<code>
# mkdir "$X2GO_DIST_SRC"
# mkdir "$X2GO_DIST_INST"
</code>


=== NX libraries ===

Prepare $NX_BASE_DIR.

<code>
# mkdir -p "$NX_BASE_DIR"
# cd "$NX_BASE_DIR"
</code>

Fetch the NX libraries sources.

<code>
$ wget http://code.x2go.org/releases/source/nx-libs/nx-libs-<version>-lite.tar.gz
$ tar xzf nx-libs-<version>-lite.tar.gz
$ mv nx-libs-<version> nx-libs-src
</code>

Prepare the dependencies directories.

<code>
# mkdir "$NX_DIST_SRC"
# mkdir "$NX_DIST_INST"
</code>

==== Dependencies ====

  * for optional sound support: PulseAudio
  * build dependencies: 
    * Apple Developer SDK
    * Qt 4
    * libssh >= 0.4.7
    * libjpeg or libjpeg-turbo
    * libpng
    * nx-binaries

=== Qt4 ===

Qt4 is a hard dependency.
You can either download and install the [[http://qt.nokia.com/downloads|SDK package for Mac OS X provided by Nokia]], or, if you want to redistribute/deploy x2goclient on other machines, build your own version from source.

If you decide to build from source, follow these instructions, else skip to the NX part.

== Download ==

Download the source package from [[http://qt.nokia.com/downloads/downloads#qt-lib|the official Qt site]] (.tar.gz recommended.)

Put it into $X2GO_DIST_SRC.

Unpack it.

<code>
# cd "$X2GO_DIST_SRC"
# tar -xzvf qt...tar.gz
# cd qt-...
</code>

== Configuration ==

Configure the qt source tree. We will disable unused stuff and build universal (for deployment.)

If you don't intend to deploy x2goclient, you can remove all -arch parameters and further speed up compilation.

If you don't want to debug x2goclient, replace -debug-and-release with -release for added speed.

Remember to substitute the variables with the correct path values!

<code>
# CXX="g++-4.2" CC="gcc-4.2" OBJC="gcc-4.2" PKG_CONFIG="/usr/bin/pkg-config" ./configure -prefix "$X2GO_DIST_INST/qt" -prefix-install -debug-and-release -opensource -shared -fast -largefile -no-exceptions -no-xmlpatterns -accessibility -stl -no-sql-psql -plugin-sql-sqlite -no-qt3support -no-multimedia -no-audio-backend -no-phonon -no-phonon-backend -svg -no-javascript-jit -no-webkit -no-script -no-scripttools -no-declarative -no-declarative-debug -platform macx-g++ -graphicssystem raster -no-ssse3 -no-sse4.1 -no-sse4.2 -no-avx -no-neon -system-zlib -qt-libtiff -qt-libpng -qt-libmng -qt-libjpeg -openssl-linked -rpath -v -no-optimized-qmake -no-nis -cups -iconv -no-pch -no-dbus -cocoa -framework -dwarf2 -arch "x86_64 x86 ppc" -confirm-license -nomake demos -nomake examples -nomake docs -sdk /Developer/SDKs/MacOSX10.5.sdk
</code>

If everything went through cleanly, proceed to the next step.


== Building ==

Run make and pray. Pray strongly. To whomever or whatever you want, just pray.

<code>
# make
</code>

If everything went through without errors, install Qt.

<code>
# make install
</code>


=== libssh ===

== Dependencies ==

libssh uses CMake to configure the source build. Please download and install CMake from [[http://cmake.org/cmake/resources/software.html|the official CMake repository]].

== Download ==

Download the source package from [[http://www.libssh.org/files/|the libssh repository]]. Note that currently 0.5.2 is buggy, at least on Mac OS X. Please use 0.5.1 for now.

Put it into $X2GO_DIST_SRC.

Unpack the source.

<code>
# tar -xzvf libssh-...tar.gz
# cd libssh-...
</code>

== Configuration ==

Create a build subdir.

<code>
# mkdir build
# cd build
</code>

Configure libssh.

Again, substitute variables. If you don't need multiarch support, replace "CMAKE_OSX_ARCHITECTURES:STRING=i386 -arch x86_64 -arch ppc" with "CMAKE_OSX_ARCHITECTURES:STRING=". 

<code>
# cmake -D "CMAKE_BUILD_TYPE:STRING=Release" -D "CMAKE_CXX_COMPILER:FILEPATH=/usr/bin/g++-4.2" -D "CMAKE_CXX_FLAGS:STRING=-pipe -Wall -Wextra" -D "CMAKE_CXX_FLAGS_RELEASE:STRING=-O3 -DNDEBUG" -D "CMAKE_C_COMPILER:FILEPATH=/usr/bin/gcc-4.2" -D "CMAKE_C_FLAGS:STRING=-pipe -Wall -Wextra" -D "CMAKE_C_FLAGS_RELEASE:STRING=-O3 -DNDEBUG" -D "CMAKE_EXPORT_COMPILE_COMMANDS:BOOL=ON" -D "CMAKE_INSTALL_PREFIX:PATH=$X2GO_DIST_INST" -D "CMAKE_OSX_ARCHITECTURES:STRING=i386 -arch x86_64 -arch ppc" -D "CMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.5" -D "CMAKE_OSX_SYSROOT:PATH=/Developer/SDKs/MacOSX10.5.sdk" -D "CMAKE_VERBOSE_MAKEFILE:BOOL=ON" -D "CMAKE_SKIP_RPATH:BOOL=NO" -D "CPACK_BINARY_BUNDLE:BOOL=OFF" -D "CPACK_BINARY_OSXX11:BOOL=OFF" -D "WITH_BENCHMARKS:BOOL=OFF" -D "WITH_CLIENT_TESTING:BOOL=OFF" -D "WITH_DEBUG_CALLTRACE:BOOL=ON" -D "WITH_DEBUG_CRYPTO:BOOL=OFF" -D "WITH_GCRYPT:BOOL=OFF" -D "WITH_INTERNAL_DOC:BOOL=OFF" -D "WITH_LIBZ:BOOL=ON" -D "WITH_PCAP:BOOL=OFF" -D "WITH_SERVER:BOOL=OFF" -D "WITH_SFTP:BOOL=ON" -D "WITH_SSH1:BOOL=ON" -D "WITH_STATIC_LIB:BOOL=ON" -D "WITH_TESTING:BOOL=OFF"
</code>

== Building ==

Build the source.

<code>
# make
</code>

Install libssh.

<code>
# make install
</code>

Remove the shared libraries (we only need the static one.)

<code>
# rm "$X2GO_DIST_INST/lib/"libssh*.dylib
</code>


**Run the following commands as a regular, non-root user.  You'll need the root password to install them.**

**1. 
Install nxproxy from the nx-libs-lite tarball**

<code>
$ wget http://code.x2go.org/releases/source/nx-libs/nx-libs-<version>-lite.tar.gz
$ tar xzf nx-libs-<version>-lite.tar.gz
$ cd nx-libs-<version>
$ PREFIX=/usr make
$ su -c "make install"
</code>


**2a.
Install x2goclient from git**

<code>
$ git clone git://code.x2go.org/x2goclient
$ cd x2goclient
$ export PREFIX=/usr
$ make build_client && make install_client
</code>

**2b.
Also build+install x2goplugin**

<code>
$ make build_plugin && make install_plugin
</code>
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