Mystery solved. Lyx does not use the QT5 libraries, it needs QT4 (with qt4-devel). If I may take the liberty of suggesting a minor improvement to the configuration script, I would say that a message mentioning the need of the qt4 library would be advisable.
With every best wishes, GM On Tue, 19 Sep 2017 00:03:51 +0200 Guido Milanese <[email protected]> wrote: > Dear Experts, > I am trying to compile LyX on my xubuntu 17.04 system (for several > reasons I do not want to install via apt-get install). I cannot make > sense of this problem: > > checking for Qt library name... failed > configure: error: cannot compile a simple Qt executable. Check you > have the right $QTDIR. > > I tried with > export QTDIR=/usr/share/qt5 > > but to no success. > > Another problem (may be related?) is > > checking for ANSI C header files... no > > I have build-essential correctly installed, so I cannot understand > what I'm missing. > > Thank you! > guido, italy > > --- > Guido Milanese, Professor of Classics, PhD HC Paris IC > http://docenti.unicatt.it/ita/guido_fabrizio_milanese/ > http://usi.to/tz4 --- Guido Milanese, Professor of Classics, PhD HC Paris IC http://docenti.unicatt.it/ita/guido_fabrizio_milanese/ http://usi.to/tz4
