Tried to build the daily version with 'noopt' but then got blocked by another bug: /usr/bin/python2.7 /build/firefox/trunk2/firefox-trunk-7.0~a1~hg20110618r71272+nobinonly/build-tree/mozilla/config/pythonpath.py -I../../config /build/firefox/trunk2/firefox-trunk-7.0~a1~hg20110618r71272+nobinonly/build-tree/mozilla/config/expandlibs_exec.py --uselist -- c++ -fno-rtti -fno-exceptions -Wall -Wpointer-arith -Woverloaded-virtual -Wsynth -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor -Wno-invalid-offsetof -Wno-variadic-macros -Werror=return-type -pedantic -Wno-long-long -g -fno-strict-aliasing -std=gnu++0x -pthread -mthumb -pipe -DNDEBUG -DTRIMMED -g -fPIC -shared -Wl,-z,defs -Wl,-h,libxul.so -o libxul.so nsStaticXULComponents.o nsUnicharUtils.o nsBidiUtils.o nsRDFResource.o -lpthread -mthumb -Wl,-rpath-link,/build/firefox/trunk2/firefox-trunk-7.0~a1~hg20110618r71272+nobinonly/build-tree/mozilla/obj-arm-linux-gnueabi/dist/bin -Wl,-rpath-link,/usr/lib ../../toolkit/xre/libxulapp_s.a ../../staticlib/components/libnecko.a ../../staticlib/components/libuconv.a ../../staticlib/components/libi18n.a ../../staticlib/components/libchardet.a ../../staticlib/components/libjar50.a ../../staticlib/components/libstartupcache.a ../../staticlib/components/libpref.a ../../staticlib/components/libhtmlpars.a ../../staticlib/components/libimglib2.a ../../staticlib/components/libgkgfx.a ../../staticlib/components/libgklayout.a ../../staticlib/components/libdocshell.a ../../staticlib/components/libembedcomponents.a ../../staticlib/components/libwebbrwsr.a ../../staticlib/components/libnsappshell.a ../../staticlib/components/libtxmgr.a ../../staticlib/components/libcommandlines.a ../../staticlib/components/libtoolkitcomps.a ../../staticlib/components/libpipboot.a ../../staticlib/components/libpipnss.a ../../staticlib/components/libappcomps.a ../../staticlib/components/libcomposer.a ../../staticlib/components/libjetpack_s.a ../../staticlib/components/libjsctypes.a ../../staticlib/components/libjsperf.a ../../staticlib/components/libgkplugin.a ../../staticlib/components/libunixproxy.a ../../staticlib/components/libjsd.a ../../staticlib/components/libautoconfig.a ../../staticlib/components/libauth.a ../../staticlib/components/libcookie.a ../../staticlib/components/libpermissions.a ../../staticlib/components/libuniversalchardet.a ../../staticlib/components/librdf.a ../../staticlib/components/libwindowds.a ../../staticlib/components/libfileview.a ../../staticlib/components/libstoragecomps.a ../../staticlib/components/libplaces.a ../../staticlib/components/libtkautocomplete.a ../../staticlib/components/libsatchel.a ../../staticlib/components/libpippki.a ../../staticlib/components/libwidget_gtk2.a ../../staticlib/components/libsystem-pref.a ../../staticlib/components/libimgicon.a ../../staticlib/components/libaccessibility.a ../../staticlib/components/libremoteservice.a ../../staticlib/components/libspellchecker.a ../../staticlib/components/libzipwriter.a ../../staticlib/components/libservices-crypto.a ../../staticlib/libjsipc_s.a ../../staticlib/libdomipc_s.a ../../staticlib/libdomplugins_s.a ../../staticlib/libmozipc_s.a ../../staticlib/libmozipdlgen_s.a ../../staticlib/libipcshell_s.a ../../staticlib/libgfxipc_s.a ../../staticlib/libipdlunittest_s.a ../../staticlib/libxpcom_core.a ../../staticlib/libucvutil_s.a ../../staticlib/libchromium_s.a ../../staticlib/libmozreg_s.a ../../staticlib/libmorkreader_s.a ../../staticlib/libgtkxtbin.a ../../staticlib/libthebes.a ../../staticlib/libycbcr.a ../../staticlib/libangle.a ../../dist/lib/libmozsqlite3.a -L../../dist/bin -L../../dist/lib ../../jpeg/libmozjpeg.a ../../modules/libimg/png/libmozpng.a ../../gfx/qcms/libmozqcms.a /build/firefox/trunk2/firefox-trunk-7.0~a1~hg20110618r71272+nobinonly/build-tree/mozilla/obj-arm-linux-gnueabi/dist/lib/libjs_static.a -L../../dist/bin -L../../dist/lib -lcrmf -lsmime3 -lssl3 -lnss3 -lnssutil3 ../../gfx/cairo/cairo/src/libmozcairo.a ../../gfx/cairo/libpixman/src/libmozlibpixman.a -lXrender -lfreetype -lfontconfig ../../gfx/harfbuzz/src/libmozharfbuzz.a ../../gfx/ots/src/libmozots.a ../../modules/zlib/src/libmozz.a -lasound -lrt -L../../dist/bin -L../../dist/lib -L/build/firefox/trunk2/firefox-trunk-7.0~a1~hg20110618r71272+nobinonly/build-tree/mozilla/obj-arm-linux-gnueabi/dist/lib -lplds4 -lplc4 -lnspr4 -lpthread -ldl ../../dist/lib/libmozalloc.a -L/usr/lib/arm-linux-gnueabi -ldbus-1 -lpthread -lrt -lX11 -lXext -pthread -L/usr/lib/arm-linux-gnueabi -lpangoft2-1.0 -lfreetype -lfontconfig -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt -lglib-2.0 -pthread -L/usr/lib/arm-linux-gnueabi -lgtk-x11-2.0 -latk-1.0 -lgio-2.0 -lpangoft2-1.0 -lfreetype -lfontconfig -lgdk-x11-2.0 -lpangocairo-1.0 -lgdk_pixbuf-2.0 -lm -lpango-1.0 -lcairo -lgmodule-2.0 -lgobject-2.0 -lgthread-2.0 -lrt -lglib-2.0 -lXt -lgthread-2.0 -L/usr/lib/arm-linux-gnueabi -lfreetype -lz -lstartup-notification-1 -ldl -lrt /usr/bin/ld.bfd.real: ../../ipc/ipdl/PTestRPCShutdownRaceChild.o(.text+0x2dc): unresolvable R_ARM_THM_CALL relocation against symbol `std::allocator::allocator()@@GLIBCXX_3.4' /usr/bin/ld.bfd.real: final link failed: Nonrepresentable section on output collect2: ld returned 1 exit status Seems 'noopt' is removing more build flags than necessary. Will try to remove the compiler optimizations by hand and see if it works better.