View source for Documentation/4.1/Developers/Build Instructions

== PREREQUISITES ==
<br>
<center>To avoid <br>[[#Common_errors|'''Common errors''']], <br>we<br> '''STRONGLY'''<br> recommend to read the<br> <font size="+2">[[Documentation/{{documentation/version}}/Developers/Build Instructions/Prerequisites|Prerequisites]]</font><br> section.</center>

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{{:{{FULLPAGENAME}}/CheckoutSourceCode}}

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{{:{{FULLPAGENAME}}/Configure}}

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{{:{{FULLPAGENAME}}/Compile}}

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== RUN Slicer ==
=== Per-platform instructions===
==== Windows ====

Run <code>Slicer4-SuperBuild/Slicer-build/Slicer.exe</code>

==== Unix-like ====

Run <code>Slicer4-SuperBuild/Slicer-build/Slicer</code>

<br><br><br><br>

== DEBUG Slicer ==
=== Per-platform instructions===
==== Windows ====
* Make sure you build Slicer using the '''Debug''' configuration.
* Open a windows terminal <code>cmd.exe</code>
* Execute the following command:
  cd \path\to\Slicer4-SuperBuild\Slicer-build
  Slicer.exe --VisualStudio Slicer.sln

==== Unix-like ====
NA

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== Common errors ==
=== error: ‘class QList<QString>’ has no member named ‘reserve’ ===
 /nfs/Users/blowekamp/QtSDK/Desktop/Qt/474/gcc/include/QtCore/qdatastream.h: In function ‘QDataStream& operator>>(QDataStream&, QList<T>&) [with T = QString]’:
 /nfs/Users/blowekamp/QtSDK/Desktop/Qt/474/gcc/include/QtCore/qstringlist.h:247:   instantiated from here
 /nfs/Users/blowekamp/QtSDK/Desktop/Qt/474/gcc/include/QtCore/qdatastream.h:246: error: ‘class QList<QString>’ has no member named ‘reserve’
You have multiple Qt versions installed on your machine. Try removing the Qt version installed on the system.

=== libarchive.so: undefined reference to `SHA256_Update' ===

 Linking CXX executable ../../../../../bin/MRMLLogicCxxTests
 /home/benjaminlong/work/slicer/Slicer4-Superbuild-Debug/LibArchive-install/lib/libarchive.so: undefined reference to `SHA256_Update'
 /home/benjaminlong/work/slicer/Slicer4-Superbuild-Debug/LibArchive-install/lib/libarchive.so: undefined reference to `SHA256_Final'
 /home/benjaminlong/work/slicer/Slicer4-Superbuild-Debug/LibArchive-install/lib/libarchive.so: undefined reference to `SHA256_Init'
 /home/benjaminlong/work/slicer/Slicer4-Superbuild-Debug/LibArchive-install/lib/libarchive.so: undefined reference to `MD5_Init'

Solution:
 cd Slicer-superbuild
 rm -rf LibArchive-*
 make -j4

Details:
* http://na-mic.org/Mantis/view.php?id=1616
* http://viewvc.slicer.org/viewvc.cgi/Slicer4?view=revision&revision=18923
* http://viewvc.slicer.org/viewvc.cgi/Slicer4?view=revision&revision=18969

=== A tool returned an error code from "Performing configure step for ..." ===

CMake has some problems building complex projects on Windows7. See more details in: http://cmake.org/Bug/view.php?id=12957

A fix has been already identified and soon will be available in an official CMake release (probably 2.8.8). Until then this unofficial version can be used (based on CMake-2.8.7): https://qshare.queensu.ca/Users01/lasso/public/cmake-2.8.7.12957-win32-x86.exe

=== A tool returned an error code from "Performing download step (git clone) for ..." ===

CMake has problems cloning git repositories on Windows7. See more details in http://cmake.org/Bug/view.php?id=12564

If you think the described problem is the same as you have, please add your specific error message to the bug report (the more people report the problem the sooner it will be fixed).

=== No rule to make target `/usr/lib/x86_64-linux-gnu/libGL.so' ===
See http://techtidings.blogspot.com/2012/01/problem-with-libglso-on-64-bit-ubuntu.html

=== X11 Window errors at start time ===
<pre>
X Error: BadWindow (invalid Window parameter) 3
  Extension:    137 (Uknown extension)
  Minor opcode: 4 (Unknown request)
  Resource id:  0x4200199
X Error: BadWindow (invalid Window parameter) 3
  Extension:    137 (Uknown extension)
  Minor opcode: 4 (Unknown request)
  Resource id:  0x42001a6
X Error: BadWindow (invalid Window parameter) 3
  Extension:    137 (Uknown extension)
  Minor opcode: 4 (Unknown request)
  Resource id:  0x42001b3
</pre>

Solution: 
* Reinstall Nvidia drivers (that also rewrite the xorg.conf file).

=== error C2061: syntax error : identifier 'ssize_t' ===
<pre>
4>1>Compiling...
4>1>version.c
4>1>c:\chene\winbin64\slicer4\cmcurl\urldata.h(585) : error C2061: syntax error : identifier 'ssize_t'
4>1>c:\chene\winbin64\slicer4\cmcurl\urldata.h(593) : error C2365: 'fread' : redefinition; previous definition was 'function'
4>1>        C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\include\stdio.h(248) : see declaration of 'fread'
4>1>c:\chene\winbin64\slicer4\cmcurl\urldata.h(610) : error C2059: syntax error : '}'
</pre>

Solution:
 * See [[#A_tool_returned_an_error_code_from_.22Performing_configure_step_for_....22]]


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==Platform Notes==

* Linux Ubuntu: if you have odd rendering artifacts, try disabling visual effects (System/Appearance/Visual Effects)
* Windows: If build was OK, but it Slicer doesn't start (gives the error: [bin/Release/SlicerQT-real.exe] exit abnormally - Report the problem.) then one possible root cause is that you have a copy of Python26.dll in your windows system directory (e.g., c:\Windows\System32\python26.dll). The solution is to rename or remove the python dll in the system directory. See more details here: http://www.na-mic.org/Bug/view.php?id=1180


==Quick Build on Debian==
 sudo aptitude update
 sudo aptitude install subversion git gcc g++ make cmake-curses-gui libqt4-dev
 svn co http://svn.slicer.org/Slicer4/trunk Slicer4
 mkdir Slicer4-SuperBuild-Debug
 cd Slicer4-SuperBuild-Debug
 cmake ../Slicer4
 make -j5
 
 # runtime dependency:
 sudo aptitude install python-tk