Re: problem building QT for v5

[sfeam <sf...@us...>]

On Sunday, 11 May 2014 12:54:29 PM pl...@pi... wrote:
> Hi,
> 
> just tried to update to v5 and it barfed at the QT stage.
> 
> 
> 
> Making timestamp.h
> /tmp/x11-libs/qt-core-4.8.2/work/qt-everywhere-opensource-src-4.8.2/bin/uic 
> -o ui_QtGnuplotSettings.h qtterminal/QtGnuplotSettings.ui
> make[4]: 
> /tmp/x11-libs/qt-core-4.8.2/work/qt-everywhere-opensource-src-4.8.2/bin/uic: 
> Command not found
> make[4]: *** [ui_QtGnuplotSettings.h] Error 127

Those messages are obviously from qt4.8, not qt5.

Gnuplot's configure script will first try to find a qt5 installation.
If it can't, then it tries to find a qt4 installation.

> Where is configure digging this up from? It should presumably be looking 
> for something in the installed location not in the build structure.

The check for qt5 is done by looking for installation of the following
modules:
     Qt5Core Qt5Gui Qt5Network Qt5Svg Qt5PrintSupport
		
You should be able to find what failed by looking in the configuration
log file config.log.   I am guessing that even though you installed qt5
you didn't pull one or more of those optional modules.
 

> ===
> 
> Also noted this, that did not look too reassuring:
> 
> In function 'snprintf',
>      inlined from 'get_data' at plot2d.c:712:12:
> /usr/include/bits/stdio2.h:65:3: warning: call to 
> __builtin___snprintf_chk will always overflow destination buffer

That is indeed an error. I wonder why I don't get the same error
message when compiling here.

	thanks,

		Ethan