Native QT compilation on Raspberry Pi 2

[moogle42]

I'm using the following guide to install QT on the raspberry Pi 2:

https://wiki.qt.io/Native_Build_of_Qt5_on_a_Raspberry_Pi

I have successfully run the configure and make commands with no errors. I am now trying to run make install but this fails giving the following error:

/usr/bin/ld.gold: error: cannot find -lpoly2tri
collect2: error: ld returned 1 exit status
Makefile:272: recipe for target '../../../qml/QtLocation/libdeclarative_location.so' failed
make[4]: *** [../../../qml/QtLocation/libdeclarative_location.so] Error 1
make[4]: Leaving directory '/home/pi/opt/qt5/qtlocation/src/imports/location'
Makefile:80: recipe for target 'sub-location-install_subtargets' failed
make[3]: *** [sub-location-install_subtargets] Error 2
make[3]: Leaving directory '/home/pi/opt/qt5/qtlocation/src/imports'
Makefile:135: recipe for target 'sub-imports-install_subtargets' failed
make[2]: *** [sub-imports-install_subtargets] Error 2
make[2]: Leaving directory '/home/pi/opt/qt5/qtlocation/src'
Makefile:56: recipe for target 'sub-src-install_subtargets' failed
make[1]: *** [sub-src-install_subtargets] Error 2
make[1]: Leaving directory '/home/pi/opt/qt5/qtlocation'
Makefile:549: recipe for target 'module-qtlocation-install_subtargets' failed
make: *** [module-qtlocation-install_subtargets] Error 2

Any suggestions/advice on how to proceed is appreciated, thanks!

[David.G]

It seems a new dependency has been added called poly2tri (library)
https://code.google.com/p/poly2tri/ (check if your distribution provides poly2tri and install the development files)

Compile/install the library should do the trick, hopefully.

[moogle42]

I wasn't able to find development files for the raspbian distribution that I am using for poly2tri.

I notice in the lib folder that the code should be searching in that there is a relevant poly2tri library file:
/home/pi/opt/qt5/qtlocation/lib/libpoly2tri.prl

Is there some way of making the code see this library?
I notice that this similar issue has been seen in the past:

https://bugreports.qt.io/browse/QTBUG-43006

Is there some other way of solving this?

[jsulm]

In the bug ticket: "Fix Version/s: 5.4.1"
Which Qt version are you trying to install?

[moogle42]

I'm trying to install QT 5.6.0.

[a_merello]

Were you able to solve this issue? I ran into the same problem on a Virtual Machine with Ubuntu Server 14.04