Posted by duncan.lithgow on Jan 02, 2021; 12:41pm
URL: https://forum.librecad.org/Install-2-2-rc1-from-source-on-Ubuntu-20-04-tp5719984.html

Following the instructions to install LibreCAD 2.2_rc1 here:
https://librecad.readthedocs.io/en/latest/appx/build.html

I'm getting a lot of errors. Here's a few that might help anyone who can help me find the cause:

duncan@duncan-ThinkPad-W540:~/Downloads/LibreCAD-2.2.0-rc1$ qmake -v
QMake version 3.1
Using Qt version 5.12.8 in /usr/lib/x86_64-linux-gnu
duncan@duncan-ThinkPad-W540:~/Downloads/LibreCAD-2.2.0-rc1$ uic -v
uic 5.12.8

So there is a lot about things depreciated in Qt.

/usr/include/x86_64-linux-gnu/qt5/QtCore/qvariant.h:275:25: warning: implicitly-declared ‘QVariant::Private& QVariant::Private::operator=(const QVariant::Private&)’ is deprecated [-Wdeprecated-copy]
  275 |     { other.d = Private(); }

There is a whole section of warnings like this:

ui/qg_actionhandler.cpp:275:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
  275 |   if(!document->countSelected()){
      |   ^~

The first error looks lihe this:

ui/forms/qg_commandwidget.cpp:59:60: error: invalid use of incomplete type ‘class QAction’
   59 |     auto a1 = new QAction(QObject::tr("Keycode Mode"), this);
      |    

It ends like this:

make[2]: Leaving directory '/home/duncan/Downloads/LibreCAD-2.2.0-rc1/librecad/src'
make[1]: *** [Makefile:47: sub-src-make_first] Error 2
make[1]: Leaving directory '/home/duncan/Downloads/LibreCAD-2.2.0-rc1/librecad'
make: *** [Makefile:93: sub-librecad-make_first-ordered] Error 2

It doesn't run:

duncan@duncan-ThinkPad-W540:~/Downloads/LibreCAD-2.2.0-rc1$ ./unix/librecad &
[1] 391293
duncan@duncan-ThinkPad-W540:~/Downloads/LibreCAD-2.2.0-rc1$ bash: ./unix/librecad: No such file or directory

Anyone here able to offer suggestions on what I should try?