I have a Mac running the latest version of Mac OS X and the latest version of Xcode. In the Mac world it would be referred to as the STANDARD system. I've installed the latest Qt 5.0.2 on my Mac. (This is the version of choice on the Qt website.) I have followed the directions in the ReadMe file for the release to set up the header and library paths. I have repeated this twice and carefully verified that I'm following the Qt 5.0.2 installation and usage procedures. The qt RInside example won't compile and the two errors I listed in my original post are the first fatal errors the compiler reports.
After not having success with Qt 5.0.2 I uninstalled it and downloaded the old 4.8 version of Qt. On a Mac with Qt 4.8 the qmake runs but generates a garbage Xcode project file and generates no Makefile at all. So, even with Qt 4, the qt RInside example won't compile on a Mac. If there are any Mac cognoscenti who can offer some insight on issues with Qt on a Mac I'd appreciate hearing from you. My current approach is to uninstall Qt 4.8 and reinstall Qt 5.0.2 and work towards fixing the compile errors in the qt RInside example. On Sat, Apr 27, 2013 at 9:13 AM, Dirk Eddelbuettel <[email protected]> wrote: > > On 27 April 2013 at 08:29, Paul Johnson wrote: > | I'm getting numerous errors when I try to create the RInside qtdensity > example. > | > | This is my first experience with Qt so I suspect there's some simple > | thing I'm not doing right. > | > | The first two fatal compilation errors I get are: > | > | --- > | qtdensity.cpp:37:31: error: allocation of incomplete type 'QLineEdit' > | QLineEdit *cmdEntry = new QLineEdit(m_cmd); > | ^~~~~~~~~ > | /usr/local/Qt-5.0.2/include/QtWidgets/qabstractspinbox.h:55:7: note: forward > | declaration of 'QLineEdit' > | class QLineEdit; > | ^ > | qtdensity.cpp:38:14: error: no matching member function for call to > 'connect' > | QObject::connect(cmdEntry, SIGNAL(textEdited(QString)), this,... > | ~~~~~~~~~^~~~~~~ > | /usr/local/Qt-5.0.2/include/QtCore/qobject.h:199:36: note: candidate > function > | not viable: cannot convert argument of incomplete type 'QLineEdit *' > to > | 'const QObject *' > | static QMetaObject::Connection connect(const QObject *sender, const... > | --- > | > | The fatal errors occur when processing Qt header files, so perhaps I > | have a problem with my Qt installation. > > Very likely. > > Here is what it looks like on my system. Not a line of output from the > compiler even under -Wall: > > edd@max:~/svn/rinside/pkg/inst/examples/qt$ qmake && make > g++ -c -m64 -pipe -I/usr/share/R/include > -I/usr/local/lib/R/site-library/Rcpp/include > -I/usr/local/lib/R/site-library/RInside/include -O2 -Wall -W -D_REENTRANT > -DQT_WEBKIT -DQT_NO_DEBUG -DQT_SVG_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED > -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore > -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtSvg -I/usr/include/qt4 -I. -o > qtdensity.o qtdensity.cpp > g++ -c -m64 -pipe -I/usr/share/R/include > -I/usr/local/lib/R/site-library/Rcpp/include > -I/usr/local/lib/R/site-library/RInside/include -O2 -Wall -W -D_REENTRANT > -DQT_WEBKIT -DQT_NO_DEBUG -DQT_SVG_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED > -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore > -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtSvg -I/usr/include/qt4 -I. -o > main.o main.cpp > /usr/bin/moc-qt4 -DQT_WEBKIT -DQT_NO_DEBUG -DQT_SVG_LIB -DQT_GUI_LIB > -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. > -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtSvg > -I/usr/include/qt4 -I. qtdensity.h -o moc_qtdensity.cpp > g++ -c -m64 -pipe -I/usr/share/R/include > -I/usr/local/lib/R/site-library/Rcpp/include > -I/usr/local/lib/R/site-library/RInside/include -O2 -Wall -W -D_REENTRANT > -DQT_WEBKIT -DQT_NO_DEBUG -DQT_SVG_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED > -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore > -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtSvg -I/usr/include/qt4 -I. -o > moc_qtdensity.o moc_qtdensity.cpp > g++ -m64 -Wl,-O1 -o qtdensity qtdensity.o main.o moc_qtdensity.o > -L/usr/lib/x86_64-linux-gnu -L/usr/lib/R/lib -lR -lblas -llapack > -L/usr/local/lib/R/site-library/RInside/lib -lRInside > -Wl,-rpath,/usr/local/lib/R/site-library/RInside/lib > -L/usr/local/lib/R/site-library/Rcpp/lib -lRcpp > -Wl,-rpath,/usr/local/lib/R/site-library/Rcpp/lib -lQtSvg -lQtGui -lQtCore > -lpthread > edd@max:~/svn/rinside/pkg/inst/examples/qt$ > > On a less-standard system, you may need to do more legwork yourself. The > setup is consistent with Qt practice, tested and maintained. And has worked > just fine for a number of Qt 4.* releases. > > Dirk > > -- > Dirk Eddelbuettel | [email protected] | http://dirk.eddelbuettel.com _______________________________________________ Rcpp-devel mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
