Mine

NOTE: preferred version 2.5 of glibc not available
NOTE: package qtopia-core-4.2.0: started
NOTE: package qtopia-core-4.2.0-r1: task do_compile: started
ERROR: function do_compile failed
ERROR: log data follows (/home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/work/armv6-angstrom-linux-gnueabi/qtopia-core-4.2.0-r1/temp/log.do_compile.3579)
| NOTE: make MAKEFLAGS=
| cd src && make -f Makefile
| make[1]: Entering directory `/home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/work/armv6-angstrom-linux-gnueabi/qtopia-core-4.2.0-r1/qtopia-core-opensource-src-4.2.0/src'
| cd tools/moc && make -f Makefile
| make[2]: Entering directory `/home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/work/armv6-angstrom-linux-gnueabi/qtopia-core-4.2.0-r1/qtopia-core-opensource-src-4.2.0/src/tools/moc'
| make[2]: Nothing to be done for `first'.
| make[2]: Leaving directory `/home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/work/armv6-angstrom-linux-gnueabi/qtopia-core-4.2.0-r1/qtopia-core-opensource-src-4.2.0/src/tools/moc'
| cd tools/rcc && make -f Makefile
| make[2]: Entering directory `/home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/work/armv6-angstrom-linux-gnueabi/qtopia-core-4.2.0-r1/qtopia-core-opensource-src-4.2.0/src/tools/rcc'
| g++ -fno-exceptions -Wl,-rpath,/usr/lib -Wl,-rpath,/usr/lib -o ../../../bin/rcc .obj/release-shared-emb-arm/main.o .obj/release-shared-emb-arm/rcc.o .obj/release-shared-emb-arm/qglobal.o .obj/release-shared-emb-arm/qbuffer.o .obj/release-shared-emb-arm/qdir.o .obj/release-shared-emb-arm/qfile.o .obj/release-shared-emb-arm/qfileinfo.o .obj/release-shared-emb-arm/qfsfileengine.o .obj/release-shared-emb-arm/qiodevice.o .obj/release-shared-emb-arm/qtemporaryfile.o .obj/release-shared-emb-arm/qtextstream.o .obj/release-shared-emb-arm/qbytearraymatcher.o .obj/release-shared-emb-arm/qchar.o .obj/release-shared-emb-arm/qdatetime.o .obj/release-shared-emb-arm/qhash.o .obj/release-shared-emb-arm/qlistdata.o .obj/release-shared-emb-arm/qlocale.o .obj/release-shared-emb-arm/qmap.o .obj/release-shared-emb-arm/qstring.o .obj/release-shared-emb-arm/qstringlist.o .obj/release-shared-emb-arm/qstringmatcher.o .obj/release-shared-emb-arm/qvector.o .obj/release-shared-emb-arm/qabstractfileengine.o .obj/release-shared-emb-arm/qbytearray.o .obj/release-shared-emb-arm/qbitarray.o .obj/release-shared-emb-arm/qunicodetables.o .obj/release-shared-emb-arm/qvsnprintf.o .obj/release-shared-emb-arm/qregexp.o .obj/release-shared-emb-arm/qtextcodec.o .obj/release-shared-emb-arm/qutfcodec.o .obj/release-shared-emb-arm/qisciicodec.o .obj/release-shared-emb-arm/qtsciicodec.o .obj/release-shared-emb-arm/qlatincodec.o .obj/release-shared-emb-arm/qsimplecodec.o .obj/release-shared-emb-arm/qdom.o .obj/release-shared-emb-arm/qxml.o .obj/release-shared-emb-arm/qfsfileengine_unix.o    -L/home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/staging/arm-angstrom-linux-gnueabi/lib -lz -ldl
| /usr/bin/ld: skipping incompatible /home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/staging/arm-angstrom-linux-gnueabi/lib/libz.so when searching for -lz
| /usr/bin/ld: skipping incompatible /home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/staging/arm-angstrom-linux-gnueabi/lib/libz.a when searching for -lz
| /usr/bin/ld: cannot find -lz
| collect2: ld returned 1 exit status
| make[2]: *** [../../../bin/rcc] Error 1
| make[2]: Leaving directory `/home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/work/armv6-angstrom-linux-gnueabi/qtopia-core-4.2.0-r1/qtopia-core-opensource-src-4.2.0/src/tools/rcc'
| make[1]: *** [sub-tools_rcc-make_default] Error 2
| make[1]: Leaving directory `/home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/work/armv6-angstrom-linux-gnueabi/qtopia-core-4.2.0-r1/qtopia-core-opensource-src-4.2.0/src'
| make: *** [sub-src-make_default-ordered] Error 2
| FATAL: oe_runmake failed
NOTE: Task failed: /home/valentin/EPFL/iMXBoard/linux/openembedded/build/mx31ADS/tmp/work/armv6-angstrom-linux-gnueabi/qtopia-core-4.2.0-r1/temp/log.do_compile.3579
NOTE: package qtopia-core-4.2.0-r1: task do_compile: failed
ERROR: TaskFailed event exception, aborting
NOTE: package qtopia-core-4.2.0: failed
ERROR: Build of qtopia-core failed