root: unable to use TGuiBuilder

[mojca (Mojca Miklavec)]

I have the following version (variants) of root installed on 10.7:

 root @5.34.09_0+graphviz+gsl+minuit2+opengl+roofit+soversion+ssl+tmva+xml

If I try to launch TGuiBuilder, it fails with the following error:

  *******************************************
  *                                         *
  *        W E L C O M E  to  R O O T       *
  *                                         *
  *   Version   5.34/09      26 June 2013   *
  *                                         *
  *  You are welcome to visit our Web site  *
  *          http://root.cern.ch            *
  *                                         *
  *******************************************

ROOT 5.34/09 (v5-34-09@v5-34-09, Jun 26 2013, 17:10:36 on macosx64)

CINT/ROOT C/C++ Interpreter version 5.18.00, July 2, 2010
Type ? for help. Commands must be C++ statements.
Enclose multiple statements between { }.
root [0] new [] TGuiBuilder
Error: Symbol TGuiBuilder is not defined in current scope  (tmpfile):1:
Error in <TCint::AutoLoadCallback>: failure loading dependent library libRIO.so for class TGuiBuilder
Error in <TCint::AutoLoadCallback>: failure loading dependent library libGraf.so for class TGuiBuilder
Error in <TCint::AutoLoadCallback>: failure loading dependent library libGpad.so for class TGuiBuilder
Error in <TCint::AutoLoadCallback>: failure loading library libGui.so for class TGuiBuilder
*** Interpreter error recovered ***
root [1] 

I will try if Qt solves the problem (it probably doesn't), but honestly I'm not sure where to start looking. The libraries are there, for example:

/opt/local/lib/root/libRIO.5.34.so
/opt/local/lib/root/libRIO.5.so
/opt/local/lib/root/libRIO.rootmap
/opt/local/lib/root/libRIO.so

but root indeed doesn't link against any particular dylib other than X11.

> otool -L /opt/local/bin/root
/opt/local/bin/root:
	/opt/local/lib/libXpm.4.dylib (compatibility version 16.0.0, current version 16.0.0)
	/opt/local/lib/libXext.6.dylib (compatibility version 11.0.0, current version 11.0.0)
	/opt/local/lib/libX11.6.dylib (compatibility version 10.0.0, current version 10.0.0)
	/usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 52.0.0)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 159.1.0)

[cjones051073 (Chris Jones)]

Hi,

Why are you using operator [] to make a new instance ? This isn't an array, but a single object, so that isn't valid syntax I think.

I don't have access to OSX right now, but on linux I get the same if I do

root [1] new [] TGuiBuilder
Error: Symbol TGuiBuilder is not defined in current scope  (tmpfile):1:
*** Interpreter error recovered ***

but

root [0] new TGuiBuilder()
(class TGuiBuilder*)0x2281c70

works just fine.

Chris

[cjones051073 (Chris Jones)]

Back at my Mac, and

new TGuiBuilder()

Works perfectly, as I expected.

Please could a committer close this report as invalid ?

cheers Chris

[mojca (Mojca Miklavec)]

Gosh. Because I cleverly mistyped the example from ​http://root.cern.ch/drupal/content/how-use-root-gui-builder which says that one should use

[] new TGuiBuilder

so I typed

new [] TGuiBuilder

and kept copy-pasting to every further window. I "forgot to think about it" and the error looked like a misconfigured installation. I guess I should say "sorry for the noise (but it would be really nice if the error report was slightly more accurate)" ;).