I'm sorry to be a pain Uwe but I'm no further forward. This is what I have done :
1) Built qwt as described in the INSTALL file. This has resulted in a directory '/usr/local/qwt-5.2.0' underneath which is directories for doc, include and lib. There also appears to be libqwt_designer_plugin.so in the directory '/usr/lib/qt4/plugins/designer' (I assume this is the plugin I Creator has to load so that qwt widgets appear in the toolbar ?)
2) I incuded the following in my .profile :
QT_DEBUG_PLUGINS=1
export QT_DEBUG_PLUGINS
QT_PLUGIN_PATH="/usr/lib/qt4/plugins/designer" # Point toward qwt plugin ?
export QT_PLUGIN_PATH
QT_DEBUG_PLUGINS=1
export QT_DEBUG_PLUGINS
QT_PLUGIN_PATH="/usr/lib/qt4/plugins/designer" # Point toward qwt plugin ?
export QT_PLUGIN_PATH
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3)When starting up ./qtcreator from shell gives this output :
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/sqldrivers/libqsqlite.so"
keys ("QSQLITE")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/iconengines/libqsvgicon.so"
keys ("svg", "svgz", "svg.gz")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/iconengines/libqsvgicon.so"
keys ()
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqgif.so"
keys ("gif")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqico.so"
keys ("ico")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqjpeg.so"
keys ("jpeg", "jpg")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqmng.so"
keys ("mng")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqsvg.so"
keys ("svg")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqtiff.so"
keys ("tiff", "tif")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/sqldrivers/libqsqlite.so"
keys ("QSQLITE")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/iconengines/libqsvgicon.so"
keys ("svg", "svgz", "svg.gz")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/iconengines/libqsvgicon.so"
keys ()
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqgif.so"
keys ("gif")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqico.so"
keys ("ico")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqjpeg.so"
keys ("jpeg", "jpg")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqmng.so"
keys ("mng")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqsvg.so"
keys ("svg")
QFactoryLoader::QFactoryLoader() looking at "/home/kerubu/qtsdk-2009.03/bin/imageformats/libqtiff.so"
keys ("tiff", "tif")
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5)QtCreator is installed in '~/qtsdk-2009.03/bin'. I tried
ldd qtcreator.bin
linux-gate.so.1 => (0xb7f0f000)
libExtensionSystem.so.1 => /home/kerubu/qtsdk-2009.03/bin/../lib/qtcreator/libExtensionSystem.so.1 (0xb7ee8000)
libAggregation.so.1 => /home/kerubu/qtsdk-2009.03/bin/../lib/qtcreator/libAggregation.so.1 (0xb7ee3000)
libQtGui.so.4 => /home/kerubu/qtsdk-2009.03/bin/../lib/libQtGui.so.4 (0xb74e2000)
libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0xb745b000)
libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0xb741d000)
libSM.so.6 => /usr/lib/libSM.so.6 (0xb7414000)
libICE.so.6 => /usr/lib/libICE.so.6 (0xb73fc000)
libXrender.so.1 => /usr/lib/libXrender.so.1 (0xb73f1000)
libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0xb73c4000)
libXext.so.6 => /usr/lib/libXext.so.6 (0xb73b4000)
libX11.so.6 => /usr/lib/libX11.so.6 (0xb72c5000)
libQtNetwork.so.4 => /home/kerubu/qtsdk-2009.03/bin/../lib/libQtNetwork.so.4 (0xb71a0000)
libQtCore.so.4 => /home/kerubu/qtsdk-2009.03/bin/../lib/libQtCore.so.4 (0xb6f4a000)
libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0xb6f44000)
librt.so.1 => /lib/tls/i686/cmov/librt.so.1 (0xb6f3b000)
libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0xb6e83000)
libdl.so.2 => /lib/tls/i686/cmov/libdl.so.2 (0xb6e7f000)
libpthread.so.0 => /lib/tls/i686/cmov/libpthread.so.0 (0xb6e65000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb6d76000)
libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0xb6d50000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb6d41000)
libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb6bde000)
libQtXml.so.4 => /home/kerubu/qtsdk-2009.03/bin/../lib/qtcreator/../libQtXml.so.4 (0xb6b96000)
libz.so.1 => /lib/libz.so.1 (0xb6b80000)
libpcre.so.3 => /lib/libpcre.so.3 (0xb6b4e000)
libuuid.so.1 => /lib/libuuid.so.1 (0xb6b49000)
libexpat.so.1 => /usr/lib/libexpat.so.1 (0xb6b22000)
libXau.so.6 => /usr/lib/libXau.so.6 (0xb6b1d000)
libxcb.so.1 => /usr/lib/libxcb.so.1 (0xb6b03000)
/lib/ld-linux.so.2 (0xb7f10000)
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0xb6afe000)
ldd qtcreator.bin
linux-gate.so.1 => (0xb7f0f000)
libExtensionSystem.so.1 => /home/kerubu/qtsdk-2009.03/bin/../lib/qtcreator/libExtensionSystem.so.1 (0xb7ee8000)
libAggregation.so.1 => /home/kerubu/qtsdk-2009.03/bin/../lib/qtcreator/libAggregation.so.1 (0xb7ee3000)
libQtGui.so.4 => /home/kerubu/qtsdk-2009.03/bin/../lib/libQtGui.so.4 (0xb74e2000)
libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0xb745b000)
libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0xb741d000)
libSM.so.6 => /usr/lib/libSM.so.6 (0xb7414000)
libICE.so.6 => /usr/lib/libICE.so.6 (0xb73fc000)
libXrender.so.1 => /usr/lib/libXrender.so.1 (0xb73f1000)
libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0xb73c4000)
libXext.so.6 => /usr/lib/libXext.so.6 (0xb73b4000)
libX11.so.6 => /usr/lib/libX11.so.6 (0xb72c5000)
libQtNetwork.so.4 => /home/kerubu/qtsdk-2009.03/bin/../lib/libQtNetwork.so.4 (0xb71a0000)
libQtCore.so.4 => /home/kerubu/qtsdk-2009.03/bin/../lib/libQtCore.so.4 (0xb6f4a000)
libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0xb6f44000)
librt.so.1 => /lib/tls/i686/cmov/librt.so.1 (0xb6f3b000)
libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0xb6e83000)
libdl.so.2 => /lib/tls/i686/cmov/libdl.so.2 (0xb6e7f000)
libpthread.so.0 => /lib/tls/i686/cmov/libpthread.so.0 (0xb6e65000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb6d76000)
libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0xb6d50000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb6d41000)
libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb6bde000)
libQtXml.so.4 => /home/kerubu/qtsdk-2009.03/bin/../lib/qtcreator/../libQtXml.so.4 (0xb6b96000)
libz.so.1 => /lib/libz.so.1 (0xb6b80000)
libpcre.so.3 => /lib/libpcre.so.3 (0xb6b4e000)
libuuid.so.1 => /lib/libuuid.so.1 (0xb6b49000)
libexpat.so.1 => /usr/lib/libexpat.so.1 (0xb6b22000)
libXau.so.6 => /usr/lib/libXau.so.6 (0xb6b1d000)
libxcb.so.1 => /usr/lib/libxcb.so.1 (0xb6b03000)
/lib/ld-linux.so.2 (0xb7f10000)
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0xb6afe000)
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But I'm not sure if that is what you meant in your earlier post. If it is, then as you can see qwt is not listed.
Finally you should know I installed the SDK as a binary rather than build individually the Qt libraries and Creator.
Sorry to be a pain but I'm really confused about how to get plugins working.
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