See the attached gnuradio-3.5.3-build-1.log. Trivial one-liner fixes the issue: --- net-wireless/gnuradio/gnuradio-3.5.3.ebuild~ 2012-04-18 05:41:51.674314818 +0800 +++ net-wireless/gnuradio/gnuradio-3.5.3.ebuild 2012-04-18 05:42:44.459025175 +0800 @@ -43,6 +43,7 @@ dev-python/PyQt4[X,opengl] dev-python/pyqwt:5 x11-libs/qt-gui + x11-libs/qt-qt3support ) sdl? ( media-libs/libsdl ) wxwidgets? ( After applying this patch compilation finishes successfully but then installation fails (see attached gnuradio-3.5.3-build-2.log). The easiest (but probably not the best) solution is to force -j1 in $MAKEOPTS: MAKEOPTS="${MAKEOPTS} -j1". Reproducible: Always Steps to Reproduce: 1. USE="qt4" emerge gnuradio Actual Results: Build fails with … In file included from ./spectrumdisplayform.h:26, from spectrumdisplayform.cc:26: ./spectrumdisplayform.ui.h:14:42: error: Qt3Support/Q3MimeSourceFactory: No such file or directory … In file included from ./spectrumdisplayform.h:26, from ./SpectrumGUIClass.h:34, from SpectrumGUIClass.cc:26: ./spectrumdisplayform.ui.h:14:42: error: Qt3Support/Q3MimeSourceFactory: No such file or directory Expected Results: net-wireless/gnuradio buils successfully with USE="qt4". Portage 2.2.0_alpha100 (default/linux/amd64/10.0/no-multilib, gcc-4.4.7, glibc-2.14.1-r3, 3.3.1-gentoo x86_64) ================================================================= System uname: Linux-3.3.1-gentoo-x86_64-Intel-R-_Core-TM-2_Duo_CPU_T7100_@_1.80GHz-with-gentoo-2.1 Timestamp of tree: Tue, 17 Apr 2012 19:00:01 +0000 app-shells/bash: 4.2_p24 dev-lang/python: 2.7.3 dev-util/cmake: 2.8.7-r5 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.1 sys-apps/openrc: 0.9.9.3 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.68 sys-devel/automake: 1.11.5 sys-devel/binutils: 2.22-r1 sys-devel/gcc: 4.4.7, 4.5.3-r2, 4.6.2 sys-devel/gcc-config: 1.7 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r3 sys-kernel/linux-headers: 3.3 (virtual/os-headers) sys-libs/glibc: 2.14.1-r3 Repositories: gentoo asolokha-overlay multimedia wirelay lisp lcd-filtering sunrise Installed sets: @system ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA PUEL" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-pipe -O2 -march=core2 -mfpmath=sse -mcx16 -msahf -ftree-loop-linear -floop-interchange -floop-block -floop-strip-mine -ftree-loop-distribution" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-pipe -O2 -march=core2 -mfpmath=sse -mcx16 -msahf -ftree-loop-linear -floop-interchange -floop-block -floop-strip-mine -ftree-loop-distribution" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs distlocks ebuild-locks fixlafiles metadata-transfer news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="ftp://ftp.corbina.ru/pub/Linux/gentoo http://distfiles.gentoo.org" LANG="en_US.UTF-8" LC_ALL="" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -Wl,--sort-common" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/asolokha-overlay /var/lib/layman/multimedia /var/lib/layman/wirelay /var/lib/layman/lisp /var/lib/layman/lcd-filtering /var/lib/layman/sunrise" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="amd64 ipv6 mmx mmxext nptl nptlonly sse sse2 ssse3 threads unicode" ALSA_CARDS="hda-intel" ALSA_PCM_PLUGINS="*" ELIBC="glibc" INPUT_DEVICES="evdev synaptics" KERNEL="linux" USERLAND="GNU" VIDEO_CARDS="i965 intel" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
Created attachment 309351 [details] Build failure
Please compare with bug 365019 first.
Interesting, I tested it on several computers, and none needed -j1 at install time. I removed the line from spectrumdisplayform.ui that causes the build to fail when qt-qt3support is not installed as per bug 365019.