I am trying to build Qt 5 on a Nitrogen6x board powered by an *i.MX6Q`.
I've installed Debian/wheezy on the board and am using an Ubuntu 12.10 machine for cross-compiling.
Configuring Qt works like a charm but I am stuck in the make step.
This is the configure script I run:
./configure -v -opensource -confirm-license -reduce-relocations -no-pch -no-xcb -no-opengl -opengl es2 -qt-libpng -qt-zlib -qt-xkbcommon -qt-xcb -qt-pcre -qt-libjpeg -qt-sql-mysql -optimized-qmake\
-make libs -device imx6 \
-compile-examples \
-device-option CROSS_COMPILE=/home/finn/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/arm-linux-gnueabi- \
-sysroot /media/finn/d72e3b65-b529-4e5c-9d30-872e1b0c9973 \
-prefix /opt/qt5
And this is the error I receive about 5 minutes into the make process:
/home/finn/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/../../../../arm-linux-gnueabihf/bin/ld:
/media/finn/d72e3b65-b529-4e5c-9d30-872e1b0c9973/usr/lib/libm.a(mpa.o): relocation R_ARM_THM_MOVW_ABS_NC against `a local symbol' can not be used when making a shared object; recompile with -fPIC
/media/finn/d72e3b65-b529-4e5c-9d30-872e1b0c9973/usr/lib/libm.a: could not read symbols: Bad value
collect2: error: ld returned 1 exit status
I've run into the same error before, when it was trying to access libz.a but adding the qt-zlib parameter to the configure command fixed that issue.
Many articles state that affected applications/libraries should be recompiled, however I don't think that's possible as libm is part of libc6.
I already tried reinstalling it using aptitude remove libc6-dev zlib1g-dev g++-4.6
and apt-get install gcc g++ make flex bison openssl libssl-dev perl perl-base perl-modules libperl-dev build-essential
Sadly this did not fix the problem.
Debian has been installed using the official network installer as well as a Kernel and an Overlay provided by Boundarydevices, the manufacturer of the board.
Does anyone has an idea how to fix this?
My next step would be to install a completely new Debian system but I would really like to avoid that.
Edit
Compiling qtbase with -static option works for me, however I am running into this error when trying to build qtdeclarative during the make step:
/home/finn/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/../../../../arm-linux-gnueabihf/bin/ld: cannot find crt1.o: No such file or directory
/home/finn/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/../../../../arm-linux-gnueabihf/bin/ld: cannot find crti.o: No such file or directory
/home/finn/qt/qtbase/lib/libQt5Core.a(qlibrary_unix.o): In function `QLibraryPrivate::load_sys()':
qlibrary_unix.cpp:(.text+0xaac): warning: Using 'dlopen' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/home/finn/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lqxcb
/home/finn/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/../../../../arm-linux-gnueabihf/bin/ld: cannot find /lib/arm-linux-gnueabihf/libpthread.so.0
/home/finn/gcc-linaro-arm-linux-gnueabihf-4.8-2013.10_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.8.2/../../../../arm-linux-gnueabihf/bin/ld: cannot find /usr/lib/arm-linux-gnueabihf/libpthread_nonshared.a
collect2: error: ld returned 1 exit status
Edit 2 - Solution
I fixed the problem and successfully compiled Qt.
All I needed to do was reinstall Ubuntu. It sure isn't an elegant solution but it works for me.