inbetweennames / gentoolto Goto Github PK

Have you considered using https://github.com/vaeth/portage-bashrc-mv?

Looks like the toolchain set we added recently has a name clash--we should probably rename this to something else or perhaps look at using the existing toolchain set. See this thread:

https://forums.gentoo.org/viewtopic-p-8119934.html#8119934

When camlbz2 is compiled with the proposed settings, emerging dose3 fails with:

Warning 58: no cmx file was found in path for module Pef, and its interface was not compiled with -opaque

• ocamlfind ocamlopt -linkpkg doselibs/common.cmxa doselibs/versioning.cmxa doselibs/pef.cmxa doselibs/opam.cmxa doselibs/npm.cmxa doselibs/debian.cmxa doselibs/csw.cmxa doselibs/algo.cmxa doselibs/doseparse.cmxa -package extlib -package re.pcre -package unix -package cudf -package bz2 -package re.str -package ocamlgraph -I applications applications/deb-coinstall.cmx -o applications/deb-coinstall.native
  doselibs/common.a(common.o):function camlCommon__Input__bzip_open_file_1279: error: undefined reference to 'mlbz_readopen'
  doselibs/common.a(common.o):function camlCommon__Input__input_char_1298: error: undefined reference to 'mlbz_read'
  doselibs/common.a(common.o):function camlCommon__Input__read_1369: error: undefined reference to 'mlbz_read'
  doselibs/common.a(common.o):function camlCommon__Input__fun_2254: error: undefined reference to 'mlbz_readclose'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o):function camlBz2__entry: error: undefined reference to 'mlbz_version'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0xe0): error: undefined reference to 'mlbz_uncompress'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0xe8): error: undefined reference to 'mlbz_compress'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0xf0): error: undefined reference to 'mlbz_writeclose'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0xf8): error: undefined reference to 'mlbz_write'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0x100): error: undefined reference to 'mlbz_writeopen'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0x108): error: undefined reference to 'mlbz_readclose'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0x110): error: undefined reference to 'mlbz_readgetunused'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0x118): error: undefined reference to 'mlbz_read'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0x120): error: undefined reference to 'mlbz_readopen'
  /usr/lib64/ocaml/bz2/bz2.a(bz2.o)(.data+0x128): error: undefined reference to 'mlbz_version'
  collect2: error: ld returned 1 exit status
  File "caml_startup", line 1:
  Error: Error during linking
  Command exited with code 2.
  Compilation unsuccessful after building 28 targets (0 cached) in 00:00:01.
  make: *** [Makefile:31: apps] Error 10

• ERROR: dev-ml/dose3-5.0.1::gentoo failed (compile phase):

• emake failed

• If you need support, post the output of emerge --info '=dev-ml/dose3-5.0.1::gentoo',

• the complete build log and the output of emerge -pqv '=dev-ml/dose3-5.0.1::gentoo'.

• The complete build log is located at '/var/tmp/portage/dev-ml/dose3-5.0.1/temp/build.log'.

• The ebuild environment file is located at '/var/tmp/portage/dev-ml/dose3-5.0.1/temp/environment'.

• Working directory: '/var/tmp/portage/dev-ml/dose3-5.0.1/work/dose3-5.0.1'

• S: '/var/tmp/portage/dev-ml/dose3-5.0.1/work/dose3-5.0.1'

• Messages for package dev-ml/dose3-5.0.1:

• ERROR: dev-ml/dose3-5.0.1::gentoo failed (compile phase):

$ echo "lt_cv_sys_$(grep -o "^global_symbol_pipe=.*$" /usr/bin/libtool)"
lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\\([ABCDGIRSTW][ABCDGIRSTW]*\\)[ ][ ]*\\([_A-Za-z][_A-Za-z0-9]*\\)\$/\\1 \\2 \\2/p' | sed '/ __gnu_lto/d'"

$ echo "lt_cv_sys_$(grep -o "^global_symbol_to_cdecl=.*$" /usr/bin/libtool)"
lt_cv_sys_global_symbol_to_cdecl="sed -n -e 's/^T .* \\(.*\\)\$/extern int \\1();/p' -e 's/^[ABCDGIRSTW][ABCDGIRSTW]* .* \\(.*\\)\$/extern char \\1;/p'"

According to bug https://bugs.freedesktop.org/show_bug.cgi?id=99675#c3 local libtool differs from /usr/bin/libtool.
Can be fixed by simply adding this variables to env/ for pulseaudio or even to make.conf if there is other packages affected.

dev-lang/python-3.6.3-r2 hangs while building with lto on test_asyncio, throwing an exception:
https://gist.github.com/8bd43d224a6097cbad7eb062661b6c6a

Important part:

0:01:52 load avg: 2.71 [ 25/400] test_asyncio
Executing <Task finished coro=<CoroutineTests.test_async_def_wrapped.<locals>.start() done, defined at /var/tmp/portage/dev-lang/python-3.6.3-r2/work/Python-3.6.3/Lib/test/test_asyncio/test_pep492.py:150> result=None created at /var/tmp/
portage/dev-lang/python-3.6.3-r2/work/Python-3.6.3/Lib/asyncio/base_events.py:446> took 0.419 seconds
Exception in thread Thread-85:
Traceback (most recent call last):
  File "/var/tmp/portage/dev-lang/python-3.6.3-r2/work/Python-3.6.3/Lib/threading.py", line 916, in _bootstrap_inner
    self.run()
  File "/var/tmp/portage/dev-lang/python-3.6.3-r2/work/Python-3.6.3/Lib/threading.py", line 864, in run
    self._target(*self._args, **self._kwargs)
  File "/var/tmp/portage/dev-lang/python-3.6.3-r2/work/Python-3.6.3/Lib/test/test_asyncio/test_streams.py", line 776, in server
    sock.bind(('localhost', 0))
socket.gaierror: [Errno -2] Name or service not known

/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: /var/tmp/portage/app-admin/keepassxc-2.2.2/temp/ccERKDVM.ltrans0.ltrans.o: requires dynamic R_X86_64_PC32 reloc against '_ZN16AutoTypeExecutor9execDelayEP13AutoTypeDelay' which may overflow at runtime; recompile with -fPIC

app-admin/keepassxc *FLAGS+=-fPIC fixes build. I do not know if this is due to gentooLTO, can someone test?
UPD: seems gentooLTO is not related https://bugs.gentoo.org/buglist.cgi?quicksearch=fPIC&list_id=3710774

Removing lto doesn't help here. Partial build.log:

In file included from /usr/include/pango-1.0/pango/pango.h:46:0,
                 from /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gdk/gdktypes.h:37,
                 from /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gdk/gdkscreen.h:32,
                 from /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gdk/gdkapplaunchcontext.h:31,
                 from /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gdk/gdk.h:32,
                 from /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/gtkstyle.h:35,
                 from /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/gtkrc.h:35,
                 from /var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/queryimmodules.c:40:
/usr/include/pango-1.0/pango/pango-utils.h:32:10: note: declared here
 char **  pango_split_file_list (const char *str);
          ^
libtool: compile:  /usr/bin/gcc-5.4.0 -m32 -DHAVE_CONFIG_H -I. -I/var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk -I.. -DG_LOG_DOMAIN=\"Gtk\" -$
/var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/gtkmountoperation-x11.c: In function ‘find_largest_sizes’:
/var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31/gtk/gtkmountoperation-x11.c:196:16: warning: variable ‘replace’ set but not used [-Wunused-but-set$
       gboolean replace;
                ^
/bin/sh ../libtool  --tag=CC   --mode=link /usr/bin/gcc-5.4.0 -m32  -O2 -pipe -march=native -Wl,-O1 -Wl,--as-needed -Wl,--hash-style=both -Wall -version-info $
libtool: link: /usr/x86_64-pc-linux-gnu/gcc-bin/5.4.0/gcc-nm  .libs/gtkquery.o .libs/gtksearchengine.o .libs/gtksearchenginesimple.o .libs/fnmatch.o .libs/gtk$
libtool: link: /bin/grep -E -e "^[^_].*" ".libs/libgtk-x11-2.0.exp" > ".libs/libgtk-x11-2.0.expT"
libtool: link: mv -f ".libs/libgtk-x11-2.0.expT" ".libs/libgtk-x11-2.0.exp"
libtool: link: echo "{ global:" > .libs/libgtk-x11-2.0.ver
libtool: link:  cat .libs/libgtk-x11-2.0.exp | sed -e "s/\(.*\)/\1;/" >> .libs/libgtk-x11-2.0.ver
libtool: link:  echo "local: *; };" >> .libs/libgtk-x11-2.0.ver
libtool: link:  /usr/bin/gcc-5.4.0 -m32 -shared  -fPIC -DPIC  .libs/gtkquery.o .libs/gtksearchengine.o .libs/gtksearchenginesimple.o .libs/fnmatch.o .libs/gtk$
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: .libs/gtkmarshalers.o: multiple definition of 'g_cclosure_marshal_VOID__$
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: .libs/gtkmarshal.o: previous definition here
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: .libs/gtkmarshalers.o: multiple definition of 'g_cclosure_marshal_VOID__$
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: .libs/gtkmarshal.o: previous definition here
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: .libs/gtkmarshalers.o: multiple definition of 'g_cclosure_marshal_VOID__$
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: .libs/gtkmarshal.o: previous definition here
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: .libs/gtkmarshalers.o: multiple definition of 'g_cclosure_marshal_VOID(i$
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: .libs/gtkmarshal.o: previous definition here
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: .libs/gtkmarshalers.o: multiple definition of 'g_cclosure_marshal_VOID__$
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: .libs/gtkmarshal.o: previous definition here
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: .libs/gtkmarshalers.o: multiple definition of 'g_cclosure_marshal_VOID__$
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: .libs/gtkmarshal.o: previous definition here
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: .libs/gtkmarshalers.o: multiple definition of 'g_cclosure_marshal_VOID__$
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: .libs/gtkmarshal.o: previous definition here
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: error: .libs/gtkmarshalers.o: multiple definition of 'g_cclosure_marshal_VOID(i$
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/../../../../x86_64-pc-linux-gnu/bin/ld: .libs/gtkmarshal.o: previous definition here
collect2: error: ld returned 1 exit status
make[4]: *** [Makefile:2426: libgtk-x11-2.0.la] Error 1
make[4]: Leaving directory '/var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31-abi_x86_32.x86/gtk'
make[3]: *** [Makefile:5081: all-recursive] Error 1
make[3]: Leaving directory '/var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31-abi_x86_32.x86/gtk'
make[2]: *** [Makefile:2340: all] Error 2
make[2]: Leaving directory '/var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31-abi_x86_32.x86/gtk'
make[1]: *** [Makefile:733: all-recursive] Error 1
make[1]: Leaving directory '/var/tmp/portage/x11-libs/gtk+-2.24.31-r1/work/gtk+-2.24.31-abi_x86_32.x86'
make: *** [Makefile:625: all] Error 2
 * ERROR: x11-libs/gtk+-2.24.31-r1::gentoo failed (compile phase):
 *   emake failed

It seems to me it would be very nice to track which packages are LTOed with Portage natively, similar to how multilib works. For example, we could have a USE_EXPAND variable called LTO which could be set to nolto, lto, or both at once.

LTO="lto" would mean that the package is built with slim LTO objects (the default in our configuration)
LTO="nolto" would mean that the package is built without LTO at all (nolto.conf).
LTO="lto nolto" would mean that the package is built with fat LTO objects (ltofat.conf).

A package which is built with exclusively nolto must link against other libraries with nolto set (either exclusively or inclusively with nolto or lto nolto respectively).

A package which is built lto may link against nolto or lto libraries. But if any library is lto nolto then a rebuild is triggered if the status of it changes, to force the linker to choose the right symbols.

I'm not sure how much work this would actually be, but it would be nice to have something like this to integrate LTO into Portage natively. Furthermore it would open the door to using other compilers as well, such as clang, to build your system. I'm a GCC guy myself, but I think the option should be there for users. If anyone has any thoughts or suggestions on this, please comment!

python-3.6.4 support configure flag --with-lto:

--with-lto Enable Link Time Optimization in PGO builds. Disabled by default.

I had to turn off lto for numactl and cvs. They install now.

#Packages which cannot be built with LTO at all (previously was nolto.conf) sys-process/numactl *FLAGS-=-flto* dev-vcs/cvs *FLAGS-=-flto*

Something like:
for i in ${LIST}; do;

• then cat or symlink something like pkg-cat/pkg-name $i to package.cflags/lto.check.tmp
• emerge -1 pkg-cat/pkg-name -q
• produce output on success/fail
• ...

done

Maybe some flags like --keep-graphite, --keep-lto, or even --quick, -q to do most common checks only.
It's ease to self write as one-string command but better to make standardised/supported and maybe redirect output to common "paste" services (app-text/pastebinit ?) to be included in bug report.

It appears that the media-video/ffmpeg ebuilds will add --enable-lto to the configuration even if you have -fno-lto active as the newest overrides do. This can lead to build errors. I'm just creating an issue here to track this.

See this bugzilla comment about a fix: https://bugs.gentoo.org/566282#c6

I'm testing a patched ebuild in my own overlay and it appears to be working. It looks like a bug should be filed upstream about this--I'll make one when I get some time (unless someone else wants to do so first--if you do, please link the bug here)

x86_64-pc-linux-gnu-gcc -o mencoder mencoder.o parser-mecmd.o xvid_vbr.o libmpcodecs/ae.o libmpcodecs/ae_pcm.o libmpcodecs/ve.o libmpcodecs/ve_raw.o libmpdemux/muxer.o libmpdemux/muxer_avi.o libmpdemux/muxer_mpeg.o libmpdemux/muxer_rawaudio.o libmpdemux/muxer_rawvideo.o libmpcodecs/ae_lavc.o libmpcodecs/ve_lavc.o libmpdemux/muxer_lavf.o libmpcodecs/ve_nuv.o libmpcodecs/native/rtjpegn.o libmpcodecs/ae_lame.o libmpcodecs/ve_x264.o libmpcodecs/ve_xvid4.o asxparser.o bstr.o codec-cfg.o cpudetect.o edl.o fmt-conversion.o m_config.o m_option.o m_struct.o mp_msg.o mp_strings.o mpcommon.o parser-cfg.o path.o playtree.o playtreeparser.o subopt-helper.o libaf/af.o libaf/af_center.o libaf/af_channels.o libaf/af_comp.o libaf/af_delay.o libaf/af_dummy.o libaf/af_equalizer.o libaf/af_extrastereo.o libaf/af_format.o libaf/af_gate.o libaf/af_hrtf.o libaf/af_karaoke.o libaf/af_pan.o libaf/af_resample.o libaf/af_scaletempo.o libaf/af_sinesuppress.o libaf/af_stats.o libaf/af_sub.o libaf/af_surround.o libaf/af_sweep.o libaf/af_tools.o libaf/af_volnorm.o libaf/af_volume.o libaf/filter.o libaf/format.o libaf/reorder_ch.o libaf/window.o libmpcodecs/ad.o libmpcodecs/ad_alaw.o libmpcodecs/ad_dvdpcm.o libmpcodecs/ad_hwac3.o libmpcodecs/ad_hwmpa.o libmpcodecs/ad_pcm.o libmpcodecs/dec_audio.o libmpcodecs/dec_teletext.o libmpcodecs/dec_video.o libmpcodecs/img_format.o libmpcodecs/mp_image.o libmpcodecs/pullup.o libmpcodecs/vd.o libmpcodecs/vd_hmblck.o libmpcodecs/vd_lzo.o libmpcodecs/vd_mpegpes.o libmpcodecs/vd_mtga.o libmpcodecs/vd_null.o libmpcodecs/vd_raw.o libmpcodecs/vd_sgi.o libmpcodecs/vd_black.o libmpcodecs/vf.o libmpcodecs/vf_1bpp.o libmpcodecs/vf_2xsai.o libmpcodecs/vf_blackframe.o libmpcodecs/vf_boxblur.o libmpcodecs/vf_crop.o libmpcodecs/vf_cropdetect.o libmpcodecs/vf_decimate.o libmpcodecs/vf_delogo.o libmpcodecs/vf_denoise3d.o libmpcodecs/vf_detc.o libmpcodecs/vf_dint.o libmpcodecs/vf_divtc.o libmpcodecs/vf_down3dright.o libmpcodecs/vf_dsize.o libmpcodecs/vf_dvbscale.o libmpcodecs/vf_eq.o libmpcodecs/vf_eq2.o libmpcodecs/vf_expand.o libmpcodecs/vf_field.o libmpcodecs/vf_fil.o libmpcodecs/vf_filmdint.o libmpcodecs/vf_fixpts.o libmpcodecs/vf_flip.o libmpcodecs/vf_format.o libmpcodecs/vf_framestep.o libmpcodecs/vf_gradfun.o libmpcodecs/vf_halfpack.o libmpcodecs/vf_harddup.o libmpcodecs/vf_hqdn3d.o libmpcodecs/vf_hue.o libmpcodecs/vf_il.o libmpcodecs/vf_ilpack.o libmpcodecs/vf_ivtc.o libmpcodecs/vf_kerndeint.o libmpcodecs/vf_mirror.o libmpcodecs/vf_noformat.o libmpcodecs/vf_noise.o libmpcodecs/vf_ow.o libmpcodecs/vf_palette.o libmpcodecs/vf_perspective.o libmpcodecs/vf_phase.o libmpcodecs/vf_pp7.o libmpcodecs/vf_pullup.o libmpcodecs/vf_rectangle.o libmpcodecs/vf_remove_logo.o libmpcodecs/vf_rgbtest.o libmpcodecs/vf_rotate.o libmpcodecs/vf_sab.o libmpcodecs/vf_scale.o libmpcodecs/vf_smartblur.o libmpcodecs/vf_softpulldown.o libmpcodecs/vf_stereo3d.o libmpcodecs/vf_softskip.o libmpcodecs/vf_swapuv.o libmpcodecs/vf_telecine.o libmpcodecs/vf_test.o libmpcodecs/vf_tfields.o libmpcodecs/vf_tile.o libmpcodecs/vf_tinterlace.o libmpcodecs/vf_unsharp.o libmpcodecs/vf_vo.o libmpcodecs/vf_yadif.o libmpcodecs/vf_yuvcsp.o libmpcodecs/vf_yvu9.o libmpdemux/aac_hdr.o libmpdemux/asfheader.o libmpdemux/aviheader.o libmpdemux/aviprint.o libmpdemux/demuxer.o libmpdemux/demux_aac.o libmpdemux/demux_asf.o libmpdemux/demux_audio.o libmpdemux/demux_avi.o libmpdemux/demux_demuxers.o libmpdemux/demux_film.o libmpdemux/demux_fli.o libmpdemux/demux_lmlm4.o libmpdemux/demux_mf.o libmpdemux/demux_mkv.o libmpdemux/demux_mov.o libmpdemux/demux_mpg.o libmpdemux/demux_nsv.o libmpdemux/demux_pva.o libmpdemux/demux_rawaudio.o libmpdemux/demux_rawvideo.o libmpdemux/demux_realaud.o libmpdemux/demux_real.o libmpdemux/demux_roq.o libmpdemux/demux_smjpeg.o libmpdemux/demux_ts.o libmpdemux/demux_ty.o libmpdemux/demux_ty_osd.o libmpdemux/demux_viv.o libmpdemux/demux_vqf.o libmpdemux/demux_y4m.o libmpdemux/ebml.o libmpdemux/extension.o libmpdemux/mf.o libmpdemux/mp3_hdr.o libmpdemux/mp_taglists.o libmpdemux/mpeg_hdr.o libmpdemux/mpeg_packetizer.o libmpdemux/parse_es.o libmpdemux/parse_mp4.o libmpdemux/video.o libmpdemux/yuv4mpeg.o libmpdemux/yuv4mpeg_ratio.o osdep/getch2.o osdep/timer-linux.o stream/open.o stream/stream.o stream/stream_bd.o stream/stream_cue.o stream/stream_file.o stream/stream_mf.o stream/stream_null.o stream/url.o sub/eosd.o sub/find_sub.o sub/osd.o sub/spudec.o sub/sub.o sub/sub_cc.o sub/subreader.o sub/vobsub.o sub/font_load.o stream/stream_cdda.o stream/cdinfo.o stream/stream_cddb.o stream/stream_dvdnav.o stream/stream_dvd.o stream/stream_dvd_common.o libvo/aclib.o av_helpers.o av_opts.o libaf/af_lavcac3enc.o libaf/af_lavcresample.o libmpcodecs/ad_ffmpeg.o libmpcodecs/ad_spdif.o libmpcodecs/vd_ffmpeg.o libmpcodecs/vf_geq.o libmpcodecs/vf_lavc.o libmpcodecs/vf_lavcdeint.o libmpcodecs/vf_screenshot.o libmpdemux/demux_lavf.o stream/stream_ffmpeg.o sub/av_sub.o sub/font_load_ft.o libmpdemux/demux_gif.o libmpcodecs/vf_bmovl.o libaf/af_export.o osdep/mmap_anon.o libmpcodecs/vd_ijpg.o libmpcodecs/ad_liba52.o libmpcodecs/vf_ass.o sub/ass_mp.o sub/subassconvert.o libmpcodecs/ad_libdca.o libmpcodecs/ad_libmad.o stream/stream_smb.o libmpdemux/demux_mng.o libmpcodecs/ad_mpg123.o stream/stream_rtsp.o stream/freesdp/common.o stream/freesdp/errorlist.o stream/freesdp/parser.o stream/librtsp/rtsp.o stream/librtsp/rtsp_rtp.o stream/librtsp/rtsp_session.o stream/stream_netstream.o stream/asf_mmst_streaming.o stream/asf_streaming.o stream/cookies.o stream/http.o stream/network.o stream/pnm.o stream/rtp.o stream/udp.o stream/tcp.o stream/stream_rtp.o stream/stream_udp.o stream/realrtsp/asmrp.o stream/realrtsp/real.o stream/realrtsp/rmff.o stream/realrtsp/sdpplin.o stream/realrtsp/xbuffer.o libmpcodecs/vd_mpng.o libmpcodecs/vf_pp.o stream/cache2.o libmpcodecs/ad_libvorbis.o libmpdemux/demux_ogg.o libmpcodecs/vd_xanim.o libmpcodecs/vd_xvid4.o osdep/shmem.o -Wl,--version-script,binary.ver -Wl,-z,noexecstack -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -fpie -pie -lncurses -lrt -lgnutls -lsmbclient -lpng -lz -lmng -ljpeg -lz -ljpeg -lgif -lasound -ldl -lpthread -ldvdread -lcdio_cdda -lcdio -lcdio_paranoia -lfreetype -lfontconfig -lass -lenca -lz -lbz2 -llzo2 -lmad -lvorbisenc -lvorbis -logg -lmpg123 -la52 -ldca -lswscale -lswresample -lavformat -lavcodec -lavutil -lpostproc -lxvidcore -lpthread -ldl -rdynamic -ldvdnav -lpthread -lm -lx264 -lpthread -lmp3lame
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/ccQPuP6l.ltrans12.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_map_factor'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/ccQPuP6l.ltrans12.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_map_factor'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/ccQPuP6l.ltrans12.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_map_factor'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/ccQPuP6l.ltrans12.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_map_factor'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/ccQPuP6l.ltrans12.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_80h'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/ccQPuP6l.ltrans12.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_80h'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/ccQPuP6l.ltrans12.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_80h'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/ccQPuP6l.ltrans12.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_80h'
collect2: error: ld returned 1 exit status
make: *** [Makefile:747: mencoder] Error 1
make: *** Waiting for unfinished jobs....
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/cckNglWk.ltrans18.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_map_factor'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/cckNglWk.ltrans18.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_map_factor'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/cckNglWk.ltrans18.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_map_factor'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/cckNglWk.ltrans18.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_map_factor'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/cckNglWk.ltrans18.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_80h'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/cckNglWk.ltrans18.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_80h'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/cckNglWk.ltrans18.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_80h'
/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/cckNglWk.ltrans18.ltrans.o::function render_frame_yuv420p_sse4: error: undefined reference to 'sse_int32_80h'
collect2: error: ld returned 1 exit status
make: *** [Makefile:747: mplayer] Error 1

• ERROR: media-video/mplayer-1.3.0-r3::gentoo failed (compile phase):
• emake failed
• If you need support, post the output of emerge --info '=media-video/mplayer-1.3.0-r3::gentoo',
• the complete build log and the output of emerge -pqv '=media-video/mplayer-1.3.0-r3::gentoo'.
• The complete build log is located at '/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/build.log'.
• The ebuild environment file is located at '/var/tmp/portage/media-video/mplayer-1.3.0-r3/temp/environment'.
• Working directory: '/var/tmp/portage/media-video/mplayer-1.3.0-r3/work/MPlayer-1.3.0'
• S: '/var/tmp/portage/media-video/mplayer-1.3.0-r3/work/MPlayer-1.3.0'

cat /var/tmp/portage/media-libs/openexr-2.2.0-r2/temp/build.log

• Package: media-libs/openexr-2.2.0-r2
• Repository: gentoo
• Maintainer: [email protected]
• USE: abi_x86_64 amd64 cpu_flags_x86_avx elibc_glibc kernel_linux userland_GNU
• FEATURES: preserve-libs
  openexr: Sat Jan 21 16:44:53 2017: 5 minutes, 39 seconds
  openexr: Sat Feb 11 16:13:23 2017: 1 minute, 32 seconds
  openexr: Mon Mar 6 18:36:47 2017: 41 minutes, 20 seconds
  openexr: Mon May 8 06:54:10 2017: 1 minute, 39 seconds
  openexr: Wed May 24 03:45:15 2017: 1 minute, 41 seconds
  openexr: Tue Jun 6 02:51:07 2017: 1 minute, 44 seconds
  openexr: Wed Jun 14 23:39:30 2017: 2 minutes, 7 seconds
  openexr: Sat Jun 17 22:44:55 2017: 1 minute, 59 seconds
  openexr: Mon Jun 19 09:19:54 2017: 2 minutes, 1 second
  openexr: Tue Jun 20 21:12:12 2017: 1 minute, 58 seconds
  openexr: Fri Jul 14 03:07:55 2017: 1 minute, 18 seconds
  openexr: Sat Jul 22 16:02:18 2017: 2 minutes, 12 seconds
  openexr: Fri Aug 11 06:38:10 2017: 2 minutes, 13 seconds
  openexr: Sat Aug 19 20:45:46 2017: 2 minutes, 15 seconds
  openexr: Sun Aug 20 16:26:17 2017: 2 minutes, 16 seconds
  openexr: Mon Sep 11 16:35:03 2017: 3 minutes, 4 seconds
  openexr: Wed Sep 13 01:37:02 2017: 2 minutes, 13 seconds
  openexr: Mon Oct 2 19:21:01 2017: 2 minutes, 39 seconds
  openexr: Wed Oct 4 11:20:14 2017: 2 minutes, 45 seconds
  openexr: 19 times
  openexr: 4 minutes, 20 seconds for 19 merges
• FEATURES='assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch usersync xattr'
• CFLAGS='-march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt'
• CXXFLAGS='-march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt'
• FFLAGS='-march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt'
• FCFLAGS='-march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt'
• F77FLAGS='-march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt'
• LDFLAGS='-Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w'
• MAKEOPTS='-j5'
• gcc (Gentoo 7.2.0 p1.1) 7.2.0
• Linux Villingili 4.13.5-gentoo_cl #1 SMP Fri Oct 6 19:07:54 CEST 2017 x86_64 Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz GenuineIntel GNU/Linux

Unpacking source...
Unpacking openexr-2.2.0.tar.gz to /var/tmp/portage/media-libs/openexr-2.2.0-r2/work
Source unpacked in /var/tmp/portage/media-libs/openexr-2.2.0-r2/work
Preparing source in /var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0 ...

• Applying openexr-2.2.0-fix-cpuid-on-abi_x86_32.patch ...
  [ ok ]
• Applying openexr-2.2.0-use-ull-for-64-bit-literals.patch ...
  [ ok ]
• Applying openexr-2.2.0-fix-build-system.patch ...
  [ ok ]
• Applying openexr-2.2.0-fix-config.h-collision.patch ...
  [ ok ]
• Applying openexr-2.2.0-Fix-typo-in-C-bindings.patch ...
  [ ok ]
• Applying openexr-2.2.0-Install-missing-header-files.patch ...
  [ ok ]
• Applying openexr-2.2.0-CVE-2017-9110-to-9116-security-fixes.patch ...
  [ ok ]
• Running eautoreconf in '/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0' ...
• Running libtoolize --install --copy --force --automake ...
  [ ok ]
• Running aclocal -I m4 ...
  [ ok ]
• Running autoconf --force ...
  [ ok ]
• Running autoheader ...
  [ ok ]
• Running automake --add-missing --copy --force-missing ...
  [ ok ]
• Running elibtoolize in: openexr-2.2.0/
• Applying portage/1.2.0 patch ...
• Applying sed/1.5.6 patch ...
• Applying as-needed/2.4.3 patch ...

Source prepared.
Configuring source in /var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0 ...

• abi_x86_64.amd64: running multilib-minimal_abi_src_configure
• econf: updating openexr-2.2.0/config.sub with /usr/share/gnuconfig/config.sub
• econf: updating openexr-2.2.0/config.guess with /usr/share/gnuconfig/config.guess
  /var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0/configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-dependency-tracking --disable-silent-rules --docdir=/usr/share/doc/openexr-2.2.0-r2 --htmldir=/usr/share/doc/openexr-2.2.0-r2/html --libdir=/usr/lib64 --enable-threading --enable-avx --disable-static --disable-imfexamples
  checking build system type... x86_64-pc-linux-gnu
  checking host system type... x86_64-pc-linux-gnu
  checking for a BSD-compatible install... /usr/lib/portage/python3.5/ebuild-helpers/xattr/install -c
  checking whether build environment is sane... yes
  checking for a thread-safe mkdir -p... /bin/mkdir -p
  checking for gawk... gawk
  checking whether make sets $(MAKE)... yes
  checking whether make supports nested variables... yes
  checking for x86_64-pc-linux-gnu-g++... x86_64-pc-linux-gnu-g++
  checking whether the C++ compiler works... yes
  checking for C++ compiler default output file name... a.out
  checking for suffix of executables...
  checking whether we are cross compiling... no
  checking for suffix of object files... o
  checking whether we are using the GNU C++ compiler... yes
  checking whether x86_64-pc-linux-gnu-g++ accepts -g... yes
  checking for style of include used by make... GNU
  checking dependency style of x86_64-pc-linux-gnu-g++... none
  checking for x86_64-pc-linux-gnu-gcc... x86_64-pc-linux-gnu-gcc
  checking whether we are using the GNU C compiler... yes
  checking whether x86_64-pc-linux-gnu-gcc accepts -g... yes
  checking for x86_64-pc-linux-gnu-gcc option to accept ISO C89... none needed
  checking whether x86_64-pc-linux-gnu-gcc understands -c and -o together... yes
  checking dependency style of x86_64-pc-linux-gnu-gcc... none
  checking whether ln -s works... yes
  checking how to print strings... printf
  checking for a sed that does not truncate output... /bin/sed
  checking for grep that handles long lines and -e... /bin/grep
  checking for egrep... /bin/grep -E
  checking for fgrep... /bin/grep -F
  checking for ld used by x86_64-pc-linux-gnu-gcc... /usr/x86_64-pc-linux-gnu/bin/ld
  checking if the linker (/usr/x86_64-pc-linux-gnu/bin/ld) is GNU ld... yes
  checking for BSD- or MS-compatible name lister (nm)... gcc-nm
  checking the name lister (gcc-nm) interface... BSD nm
  checking the maximum length of command line arguments... 1572864
  checking how to convert x86_64-pc-linux-gnu file names to x86_64-pc-linux-gnu format... func_convert_file_noop
  checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
  checking for /usr/x86_64-pc-linux-gnu/bin/ld option to reload object files... -r
  checking for x86_64-pc-linux-gnu-objdump... x86_64-pc-linux-gnu-objdump
  checking how to recognize dependent libraries... pass_all
  checking for x86_64-pc-linux-gnu-dlltool... no
  checking for dlltool... no
  checking how to associate runtime and link libraries... printf %s\n
  checking for x86_64-pc-linux-gnu-ar... gcc-ar
  checking for archiver @file support... @
  checking for x86_64-pc-linux-gnu-strip... x86_64-pc-linux-gnu-strip
  checking for x86_64-pc-linux-gnu-ranlib... gcc-ranlib
  checking command to parse gcc-nm output from x86_64-pc-linux-gnu-gcc object... ok
  checking for sysroot... no
  checking for a working dd... /bin/dd
  checking how to truncate binary pipes... /bin/dd bs=4096 count=1
  checking for x86_64-pc-linux-gnu-mt... no
  checking for mt... no
  checking if : is a manifest tool... no
  checking how to run the C preprocessor... x86_64-pc-linux-gnu-gcc -E
  checking for ANSI C header files... yes
  checking for sys/types.h... yes
  checking for sys/stat.h... yes
  checking for stdlib.h... yes
  checking for string.h... yes
  checking for memory.h... yes
  checking for strings.h... yes
  checking for inttypes.h... yes
  checking for stdint.h... yes
  checking for unistd.h... yes
  checking for dlfcn.h... yes
  checking for objdir... .libs
  checking if x86_64-pc-linux-gnu-gcc supports -fno-rtti -fno-exceptions... yes
  checking for x86_64-pc-linux-gnu-gcc option to produce PIC... -fPIC -DPIC
  checking if x86_64-pc-linux-gnu-gcc PIC flag -fPIC -DPIC works... yes
  checking if x86_64-pc-linux-gnu-gcc static flag -static works... yes
  checking if x86_64-pc-linux-gnu-gcc supports -c -o file.o... yes
  checking if x86_64-pc-linux-gnu-gcc supports -c -o file.o... (cached) yes
  checking whether the x86_64-pc-linux-gnu-gcc linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) supports shared libraries... yes
  checking whether -lc should be explicitly linked in... no
  checking dynamic linker characteristics... GNU/Linux ld.so
  checking how to hardcode library paths into programs... immediate
  checking whether stripping libraries is possible... yes
  checking if libtool supports shared libraries... yes
  checking whether to build shared libraries... yes
  checking whether to build static libraries... no
  checking how to run the C++ preprocessor... x86_64-pc-linux-gnu-g++ -E
  checking for ld used by x86_64-pc-linux-gnu-g++... /usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64
  checking if the linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) is GNU ld... yes
  checking whether the x86_64-pc-linux-gnu-g++ linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) supports shared libraries... yes
  checking for x86_64-pc-linux-gnu-g++ option to produce PIC... -fPIC -DPIC
  checking if x86_64-pc-linux-gnu-g++ PIC flag -fPIC -DPIC works... yes
  checking if x86_64-pc-linux-gnu-g++ static flag -static works... yes
  checking if x86_64-pc-linux-gnu-g++ supports -c -o file.o... yes
  checking if x86_64-pc-linux-gnu-g++ supports -c -o file.o... (cached) yes
  checking whether the x86_64-pc-linux-gnu-g++ linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) supports shared libraries... yes
  checking dynamic linker characteristics... (cached) GNU/Linux ld.so
  checking how to hardcode library paths into programs... immediate
  checking whether make sets $(MAKE)... (cached) yes
  checking for x86_64-pc-linux-gnu-pkg-config... /usr/bin/x86_64-pc-linux-gnu-pkg-config
  checking pkg-config is at least version 0.9.0... yes
  checking for IlmBase... yes
  checking whether x86_64-pc-linux-gnu-gcc is Clang... no
  checking whether pthreads work with -pthread... yes
  checking for joinable pthread attribute... PTHREAD_CREATE_JOINABLE
  checking whether more special flags are required for pthreads... no
  checking for PTHREAD_PRIO_INHERIT... yes
  checking for ANSI C header files... (cached) yes
  checking limits.h usability... yes
  checking limits.h presence... yes
  checking for limits.h... yes
  checking for unistd.h... (cached) yes
  checking for an ANSI C-conforming const... yes
  checking for inline... inline
  checking for size_t... yes
  checking for zlib... yes
  checking for sysconf(_SC_NPROCESSORS_ONLN)... yes
  checking that generated files are newer than configure... done
  configure: creating ./config.status
  config.status: creating Makefile
  config.status: creating OpenEXR.pc
  config.status: creating config/Makefile
  config.status: creating IlmImf/Makefile
  config.status: creating IlmImfTest/Makefile
  config.status: creating IlmImfUtil/Makefile
  config.status: creating IlmImfUtilTest/Makefile
  config.status: creating IlmImfFuzzTest/Makefile
  config.status: creating exrheader/Makefile
  config.status: creating exrmaketiled/Makefile
  config.status: creating IlmImfExamples/Makefile
  config.status: creating doc/Makefile
  config.status: creating exrstdattr/Makefile
  config.status: creating exrmakepreview/Makefile
  config.status: creating exrenvmap/Makefile
  config.status: creating exrmultiview/Makefile
  config.status: creating exrmultipart/Makefile
  config.status: creating config/OpenEXRConfig.h
  config.status: executing depfiles commands
  config.status: executing libtool commands

Summary for OpenEXR features:

build IlmImf example program no
build IlmImf damaged input resilience test no
build IlmImf huge input test no
enable large stack optimizations yes
internal library namespace Imf_2_2
user-client namespace Imf

Source configured.
Compiling source in /var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0 ...

• abi_x86_64.amd64: running multilib-minimal_abi_src_compile
  make -j5
  Making all in config
  make[1]: Entering directory '/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0-abi_x86_64.amd64/config'
  make all-am
  make[2]: Entering directory '/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0-abi_x86_64.amd64/config'
  make[2]: Leaving directory '/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0-abi_x86_64.amd64/config'
  make[1]: Leaving directory '/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0-abi_x86_64.amd64/config'
  Making all in IlmImf
  make[1]: Entering directory '/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0-abi_x86_64.amd64/IlmImf'
  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0/IlmImf -I../config -I.. -I/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0/config -lpthread -I/usr/include/OpenEXR -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt -pthread -c -o b44ExpLogTable.o /var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0/IlmImf/b44ExpLogTable.cpp
  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0/IlmImf -I../config -I.. -I/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0/config -lpthread -I/usr/include/OpenEXR -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt -pthread -c -o dwaLookups.o /var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0/IlmImf/dwaLookups.cpp
  /bin/sh ../libtool --tag=CXX --mode=link x86_64-pc-linux-gnu-g++ -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt -pthread -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -o dwaLookups dwaLookups.o -lHalf -lIex-2_2 -lIexMath-2_2 -lIlmThread-2_2 -lImath-2_2 -lpthread -pthread
  /bin/sh ../libtool --tag=CXX --mode=link x86_64-pc-linux-gnu-g++ -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt -pthread -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -lpthread -lrt -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -o b44ExpLogTable b44ExpLogTable.o -lHalf -lIex-2_2 -lIexMath-2_2 -lIlmThread-2_2 -lImath-2_2 -lpthread -pthread
  libtool: link: x86_64-pc-linux-gnu-g++ -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--hash-style=gnu -Wl,-O2 -pthread -Wl,--hash-style=gnu -Wl,-O2 -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -o b44ExpLogTable b44ExpLogTable.o -pthread -Wl,--as-needed -lrt -lHalf -lIex-2_2 -lIexMath-2_2 -lIlmThread-2_2 -lImath-2_2 -lpthread -pthread
  libtool: link: x86_64-pc-linux-gnu-g++ -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--hash-style=gnu -Wl,-O2 -pthread -Wl,--hash-style=gnu -Wl,-O2 -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -o dwaLookups dwaLookups.o -pthread -Wl,--as-needed -lrt -lHalf -lIex-2_2 -lIexMath-2_2 -lIlmThread-2_2 -lImath-2_2 -lpthread -pthread
  ./b44ExpLogTable > b44ExpLogTable.h
  ./dwaLookups > dwaLookups.h
  ./dwaLookups: symbol lookup error: /usr/lib64/libIlmThread-2_2.so.12: undefined symbol: sem_init
  make[1]: *** [Makefile:1054: dwaLookups.h] Error 127
  make[1]: Leaving directory '/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0-abi_x86_64.amd64/IlmImf'
  make: *** [Makefile:495: all-recursive] Error 1
• ERROR: media-libs/openexr-2.2.0-r2::gentoo failed (compile phase):
• emake failed
• If you need support, post the output of emerge --info '=media-libs/openexr-2.2.0-r2::gentoo',
• the complete build log and the output of emerge -pqv '=media-libs/openexr-2.2.0-r2::gentoo'.
• The complete build log is located at '/var/tmp/portage/media-libs/openexr-2.2.0-r2/temp/build.log'.
• The ebuild environment file is located at '/var/tmp/portage/media-libs/openexr-2.2.0-r2/temp/environment'.
• Working directory: '/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0-abi_x86_64.amd64'
• S: '/var/tmp/portage/media-libs/openexr-2.2.0-r2/work/openexr-2.2.0'

Hey, just did a fresh emerge -e world and had troubles with media-libs/openjpeg-2.3.0. First it failed with lto, so I disabled it FLAGS-=-flto (sorry I didnt log the error) however later on after resuming emerge it failed again with the following error,
/tmp/portage/media-libs/openjpeg-2.3.0/work/openjpeg-2.3.0/src/lib/openjp2/dwt.c:2171:13: internal compiler error: in outer_projection_mupa, at graphite-sese-to-poly.c:1019

After disabling GRAPHITE as well, it compiled just fine. I can do a PR but looking at equery d openjpeg it seems like a common package and Im just wondering am I the only one with this error?

Nothing big, just figured I'd let you know.

media-libs/x264-0.0.20170701-r1 fails on patching:
https://gist.github.com/2d2dba5def1dbc3cd1e0d73d97e969b3

Important part:

 * Applying lto.patch ...
The text leading up to this was:
--------------------------
|--- configure  2017-10-12 23:56:01.941756673 +0300
|+++ configure  2017-10-12 23:56:57.781761873 +0300
--------------------------
No file to patch.  Skipping patch.
1 out of 1 hunk ignored
 [ !! ]
 * ERROR: media-libs/x264-0.0.20170701-r1::lto-overlay failed (prepare phase):
 *   patch -p1  failed with /etc/portage/patches/media-libs/x264-0.0.20170701/lto.patch

For LTO to work properly
/usr/x86_64-pc-linux-gnu/binutils-bin/lib/bfd-plugins/liblto_plugin.so
has to point to the current active version of gcc, e.g. :
/usr/libexec/gcc/x86_64-pc-linux-gnu/7.2.0/liblto_plugin.so

To fix or make sure the link is correct:
ln -sf /usr/libexec/gcc/x86_64-pc-linux-gnu/7.2.0/liblto_plugin.so /usr/x86_64-pc-linux-gnu/binutils-bin/lib/bfd-plugins/

Based on https://bugs.webkit.org/show_bug.cgi?id=56088

--- a/src/3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.h 2017-10-09 14:40:55.050363361 +0300
+++ b/src/3rdparty/javascriptcore/JavaScriptCore/jit/JITStubs.h 2017-10-09 14:45:50.271354448 +0300
@@ -316,7 +316,7 @@
     EncodedJSValue JIT_STUB cti_op_to_primitive(STUB_ARGS_DECLARATION);
     EncodedJSValue JIT_STUB cti_op_typeof(STUB_ARGS_DECLARATION);
     EncodedJSValue JIT_STUB cti_op_urshift(STUB_ARGS_DECLARATION);
-    EncodedJSValue JIT_STUB cti_vm_throw(STUB_ARGS_DECLARATION);
+    EncodedJSValue JIT_STUB cti_vm_throw(STUB_ARGS_DECLARATION) __attribute__((used));
     EncodedJSValue JIT_STUB cti_to_object(STUB_ARGS_DECLARATION);
     JSObject* JIT_STUB cti_op_construct_JSConstruct(STUB_ARGS_DECLARATION);
     JSObject* JIT_STUB cti_op_new_array(STUB_ARGS_DECLARATION);

I don't tested it further but at least it builds w/ this patch in /etc/portage/patches/dev-qt/qtscript/

Removing lto doesn't help here. Partial build.log:

/var/tmp/portage/x11-libs/wxGTK-3.0.3.1-r301/work/wxWidgets-3.0.3.1-abi_x86_64.amd64/bk-make-pch ./.pch/wxprec_xmldll/wx/wxprec.h.gch wx/wxprec.h x86_64-pc-linux-gnu-g++ -I./.pch/wxprec_xmldll -D__WX__      -DWXBUILDING      -I/var/tmp/portage/x11-libs/wxGTK-3.0.3.1-r301/work/wxWidgets-3.0.3.1/src/regex  -DwxUSE_GUI=0 -DWXUSINGDLL -DWXMAKINGDLL_XML -fPIC -DPIC -Wall -Wundef -Wunused-parameter -Wno-ctor-dtor-privacy -Woverloaded-virtual -D_FILE_OFFSET_BITS=64 -I/var/tmp/portage/x11-libs/wxGTK-3.0.3.1-r301/work/wxWidgets-3.0.3.1-abi_x86_64.amd64/lib/wx/include/base-unicode-3.0-gtk3 -I/var/tmp/portage/x11-libs/wxGTK-3.0.3.1-r301/work/wxWidgets-3.0.3.1/include -DWX_PRECOMP -pthread -O2 -pipe -march=native -Wl,-O1 -Wl,--as-needed -Wl,--hash-style=both -fvisibility=hidden -fvisibility-inlines-hidden
rm -f /var/tmp/portage/x11-libs/wxGTK-3.0.3.1-r301/work/wxWidgets-3.0.3.1-abi_x86_64.amd64/lib/libwxregexu-3.0-gtk3.a
gcc-ar rc /var/tmp/portage/x11-libs/wxGTK-3.0.3.1-r301/work/wxWidgets-3.0.3.1-abi_x86_64.amd64/lib/libwxregexu-3.0-gtk3.a wxregex_regcomp.o wxregex_regexec.o wxregex_regerror.o wxregex_regfree.o
gcc-ranlib /var/tmp/portage/x11-libs/wxGTK-3.0.3.1-r301/work/wxWidgets-3.0.3.1-abi_x86_64.amd64/lib/libwxregexu-3.0-gtk3.a
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../lib64/crt1.o:function _start: error: undefined reference to 'main'
collect2: error: ld returned 1 exit status
make: *** [Makefile:15845: .pch/wxprec_xmldll/wx/wxprec.h.gch] Error 1
make: *** Waiting for unfinished jobs....
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../lib64/crt1.o:function _start: error: undefined reference to 'main'
collect2: error: ld returned 1 exit status
make: *** [Makefile:15549: .pch/wxprec_basedll/wx/wxprec.h.gch] Error 1
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../lib64/crt1.o:function _start: error: undefined reference to 'main'
collect2: error: ld returned 1 exit status
make: *** [Makefile:15586: .pch/wxprec_netdll/wx/wxprec.h.gch] Error 1
 * ERROR: x11-libs/wxGTK-3.0.3.1-r301::THG failed (compile phase):
 *   emake failed

I find it interesting that there hasn't been more push to build the kernel using LTO. I've found a couple of mailing list threads about it, including a patchset to let it happen, but there wasn't a lot of interest upstream. I've created this issue as a way to track what the current LTO progress in the kernel is, and possibly even add some patchsets to let it happen. I know I'd for sure use it on my router if I could with OpenWRT.

package.cflags/ltoworkarounds.conf:

#Packages which Graphite optimizations don't play nice with
media-libs/lcms *FLAGS-="${GRAPHITE}"
sys-apps/man-db *FLAGS-="${GRAPHITE}"
dev-lang/python *FLAGS-="${GRAPHITE}"

I have media-libs/lcms and dev-lang/python built w/o any flag overriding. Is this flags modification still needed ?

As this overlay now depends on the mv overlay, we'll have to amend the CI tests to pull in that overlay as well

My USE flags are very stripped down, encoding and all the other jazz is disabled, so I could imagine results might differ on a more complete ffmpeg, but nonetheless it's worth noting.
These are my USE flags: X, alsa, aes, mmx, mmxext, sse ,sse2 ,sse3, sse4_1, sse4_2, ssse3, gpl, hardcoded-tables, iconv, libass, libdrm, mp3, network, opengl, sdl, threads, truetype, vaapi, vorbis, xcb, xvid, zlib.
I used the cflags from your make.conf plus -ffast-math. There is a minor but nonetheless real improvement from enabling graphite and lto here. A particularly intense 3 minute segment of video which consistently dropped around 160 frames in MPV prior to recompiling with lto and graphite now only drops 140. If there are indeed issues with compiling a full ffmpeg with grapite and lto, they obviously should be disabled by default. But it might be worth commenting in that it can work with them, as it can be a noticable improvement for people with trash hardware like me.

$ cat /etc/portage/env/nostrip 
FEATURES="${FEATURES} nostrip"

$ cat /etc/portage/package.env/lto 
sys-libs/zlib nostrip

# emerge -1 sys-libs/zlib -va
w/ freshly installed gcc 7.2.0 and new CFLAGS from make.conf.lto (nothing else from overlay, just playing w/ optimizations for now) this command triggered rebuild for ~15 packages including sys-apps/pciutils which marked in overlay workarounds as nolto

and everything compiled w/ default LTO flags

not sure about python which marked as ltonographite and potentially can break portage, but I can confirm problem w/ net-misc/openssh (lto/nolto.conf #hangs on exit with lto)
both are triggered by zlib too

I can suggest command (picked from one of GCC Upgrade manuals long time ago) to detect other potential candidates for this env: # emerge -1 $(find /lib* /usr/lib* -type f -name "*.a") -vtp

with many undefined references. it installs w/o lto.

libtool: link: x86_64-pc-linux-gnu-gcc -m32 -Wall -Wextra -Wno-unused-parameter -g -Wstrict-prototypes -Wmissing-prototypes -fvisibility=hidden -O3 -pipe -march=skylake -Wl,--hash-style=gnu -flto=4 -ftree-vectorize -floop-interchange -fuse-linker-plugin -fgraphite-identity -floop-nest-optimize -Wl,--hash-style=gnu -O3 -pipe -march=skylake -flto=4 -ftree-vectorize -floop-interchange -flto=4 -fuse-linker-plugin -fgraphite-identity -floop-nest-optimize -o .libs/event-loop-test tests/event-loop-test.o -Wl,--as-needed ./.libs/libtest-runner.a /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/.libs/libwayland-client.so -L/usr/lib32/../lib32 /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/.libs/libwayland-server.so -lm -lrt -ldl -lffi -pthread /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccEsZa1n.ltrans0.ltrans.o: In function usage':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __start_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccEsZa1n.ltrans0.ltrans.o: In function main': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __start_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccEsZa1n.ltrans0.ltrans.o: In function find_test':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __start_test_section'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:1463: interface-test] Error 1
make[2]: *** Waiting for unfinished jobs....
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/cc7INYSq.ltrans0.ltrans.o: In function usage': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __start_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/cc7INYSq.ltrans0.ltrans.o: In function main':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __start_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/cc7INYSq.ltrans0.ltrans.o: In function find_test': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __start_test_section' collect2: error: ld returned 1 exit status make[2]: *** [Makefile:1447: fixed-test] Error 1 /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccCZ0U2p.ltrans0.ltrans.o: In function usage':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __start_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccCZ0U2p.ltrans0.ltrans.o: In function main': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __start_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccCZ0U2p.ltrans0.ltrans.o: In function find_test':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __start_test_section'
collect2: error: ld returned 1 exit status
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/cc1ScU5q.ltrans0.ltrans.o: In function usage': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __start_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/cc1ScU5q.ltrans0.ltrans.o: In function main':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __start_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/cc1ScU5q.ltrans0.ltrans.o: In function find_test': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __start_test_section' collect2: error: ld returned 1 exit status make[2]: *** [Makefile:1411: connection-test] Error 1 make[2]: *** [Makefile:1399: client-test] Error 1 /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccNAQm0n.ltrans0.ltrans.o: In function usage':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __start_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccNAQm0n.ltrans0.ltrans.o: In function main': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __start_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccNAQm0n.ltrans0.ltrans.o: In function find_test':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __start_test_section'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:1393: array-test] Error 1
libtool: link: x86_64-pc-linux-gnu-gcc -m32 -Wall -Wextra -Wno-unused-parameter -g -Wstrict-prototypes -Wmissing-prototypes -fvisibility=hidden -O3 -pipe -march=skylake -Wl,--hash-style=gnu -flto=4 -ftree-vectorize -floop-interchange -fuse-linker-plugin -fgraphite-identity -floop-nest-optimize -Wl,--hash-style=gnu -O3 -pipe -march=skylake -flto=4 -ftree-vectorize -floop-interchange -flto=4 -fuse-linker-plugin -fgraphite-identity -floop-nest-optimize -o .libs/list-test tests/list-test.o -Wl,--as-needed ./.libs/libtest-runner.a /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/.libs/libwayland-client.so -L/usr/lib32/../lib32 /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/.libs/libwayland-server.so -lm -lrt -ldl -lffi -pthread
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccqrOogo.ltrans0.ltrans.o: In function usage': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __start_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccqrOogo.ltrans0.ltrans.o: In function main':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __start_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccqrOogo.ltrans0.ltrans.o: In function find_test': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __start_test_section' collect2: error: ld returned 1 exit status make[2]: *** [Makefile:1429: event-loop-test] Error 1 /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccRH3B6t.ltrans0.ltrans.o: In function usage':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __start_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccRH3B6t.ltrans0.ltrans.o: In function main': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __start_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/ccRH3B6t.ltrans0.ltrans.o: In function find_test':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __stop_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __start_test_section'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:1423: display-test] Error 1
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/cc8OshuJ.ltrans0.ltrans.o: In function usage': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:124: undefined reference to __start_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/cc8OshuJ.ltrans0.ltrans.o: In function main':
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __start_test_section' /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:389: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/temp/cc8OshuJ.ltrans0.ltrans.o: In function find_test': /var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __stop_test_section'
/var/tmp/portage/portage/dev-libs/wayland-1.14.0/work/wayland-1.14.0-abi_x86_32.x86/../wayland-1.14.0/tests/test-runner.c:107: undefined reference to __start_test_section' collect2: error: ld returned 1 exit status make[2]: *** [Makefile:1469: list-test] Error 1

>>> Emerging (5 of 5) sys-config/ltoize-0.8-r1::lto-overlay
 * Warning: Active GCC version < 7.2.0, it is recommended that you use the newest GCC if you want LTO.
 * Aborting LTOize installation due to older GCC -- set I_KNOW_WHAT_I_AM_DOING=y if you want to override this behaviour.
>>> Unpacking source...
[...]

This prints and the emerge moves on. I believe it was supposed to stop after the error line.

Looking into this repository, I've seen an exception being made for packages which can end up being included inside an initramfs. (#31)

I'm not sure why the exception was necessary (I couldn't find the reason why genkernel was failing), but, assuming it's for good reasons, one should probably add sys-fs/zfs to the exception list for ZFS-based systems as well.

Any of you people interested to gather on IRC as well?

I'm not sure what I should be looking at....

6 tests failed again:
    test_compileall test_pyexpat test_runpy test_support
    test_threaded_import test_xmlrpc_net
make[1]: *** [Makefile:501: run_profile_task] Error 1
make[1]: Leaving directory '/var/tmp/portage/portage/dev-lang/python-3.4.6-r2/work/x86_64-pc-linux-gnu'
make: *** [Makefile:491: profile-opt] Error 2
 * ERROR: dev-lang/python-3.4.6-r2::lto-overlay failed (compile phase):
 *   emake failed
 * 
 * If you need support, post the output of `emerge --info '=dev-lang/python-3.4.6-r2::lto-overlay'`,
 * the complete build log and the output of `emerge -pqv '=dev-lang/python-3.4.6-r2::lto-overlay'`.
 * The complete build log is located at '/var/log/portage/dev-lang:python-3.4.6-r2:20180203-163814.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/portage/dev-lang/python-3.4.6-r2/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/portage/dev-lang/python-3.4.6-r2/temp/environment'.
 * Working directory: '/var/tmp/portage/portage/dev-lang/python-3.4.6-r2/work/x86_64-pc-linux-gnu'
 * S: '/var/tmp/portage/portage/dev-lang/python-3.4.6-r2/work/Python-3.4.6'
 * --------------------------- ACCESS VIOLATION SUMMARY ---------------------------
 * LOG FILE: "/var/log/sandbox/sandbox-18419.log"
 * 
VERSION 1.0
FORMAT: F - Function called
FORMAT: S - Access Status
FORMAT: P - Path as passed to function
FORMAT: A - Absolute Path (not canonical)
FORMAT: R - Canonical Path
FORMAT: C - Command Line

F: open_wr
S: deny
P: /usr/lib64/python3.4/site-packages/__pycache__/test.try
A: /usr/lib64/python3.4/site-packages/__pycache__/test.try
R: /usr/lib64/python3.4/site-packages/__pycache__/test.try
C: ./python -m test.regrtest -w -uall,-audio -x test_gdb test_multiprocessing test_subprocess test_tokenize test_signal test_faulthandler test_sundry test_curses test_distutils test_imaplib test_import test_asyncio 

F: unlink
S: deny
P: /usr/lib64/python3.4/site-packages/__pycache__/test.try
A: /usr/lib64/python3.4/site-packages/__pycache__/test.try
R: /usr/lib64/python3.4/site-packages/__pycache__/test.try
C: ./python -m test.regrtest -w -uall,-audio -x test_gdb test_multiprocessing test_subprocess test_tokenize test_signal test_faulthandler test_sundry test_curses test_distutils test_imaplib test_import test_asyncio 

F: open_wr
S: deny
P: /usr/lib64/python3.4/site-packages/__pycache__/test.try
A: /usr/lib64/python3.4/site-packages/__pycache__/test.try
R: /usr/lib64/python3.4/site-packages/__pycache__/test.try
C: ./python -m test.regrtest -w -uall,-audio -x test_gdb test_multiprocessing test_subprocess test_tokenize test_signal test_faulthandler test_sundry test_curses test_distutils test_imaplib test_import test_asyncio 

F: unlink
S: deny
P: /usr/lib64/python3.4/site-packages/__pycache__/test.try
A: /usr/lib64/python3.4/site-packages/__pycache__/test.try
R: /usr/lib64/python3.4/site-packages/__pycache__/test.try
C: ./python -m test.regrtest -w -uall,-audio -x test_gdb test_multiprocessing test_subprocess test_tokenize test_signal test_faulthandler test_sundry test_curses test_distutils test_imaplib test_import test_asyncio 
 * --------------------------------------------------------------------------------

>>> Failed to emerge dev-lang/python-3.4.6-r2, Log file:

It installs after disabling lto in sys-config/...workarounds

`!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/sys-libs/ncurses-6.0-r1/work/ncurses-6.0-abi_x86_32.x86/ncursestw/config.log

•           ebuild.sh, line  124:  Called src_configure
  

• ERROR: sys-libs/ncurses-6.0-r1::gentoo failed (configure phase):
  configure: error: Cannot link test program for libdl
• Call stack:
• econf failed

•         environment, line 3670:  Called multilib-minimal_src_configure
  

configure: error: Cannot link test program for libdl

!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/sys-libs/ncurses-6.0-r1/work/ncurses-6.0-abi_x86_64.amd64/ncursesw/config.log

•         environment, line 3670:  Called multilib-minimal_src_configure
  

•           ebuild.sh, line  124:  Called src_configure
  

• ERROR: sys-libs/ncurses-6.0-r1::gentoo failed (configure phase):
  `

Full disclosure: I have no idea, because "I am not a lawyer"

The project as a whole is under the BSD license whereas the ebuild is under GPLv2,

Anybody can shed some light on the implications?

Hi, when using the python 3.5 & 3.6 ebuilds with the pgo USE flag from your overlay I get a sandbox violation with the test test_compileall, when I remove it, it completes the build.

Another oddity is that test_curses leaves my terminal in an unusable state.

Adding
media-libs/ilmbase *FLAGS+=-ffat-lto-objects
let's me emerge openexr again

There is a lot of packages w/ strip-flags/replace-flags/filter-flags/... which was added years ago and probably can be dropped in now days.

For example you can get a list to analyse via $ grep -P -A1 -B1 "(replace-flags|strip-flags|filter-flags)" /var/db/pkg/*/*/* command. many of them useful but replace-flags -O3 -O2 and strip-flags can be retested.

So i wonder can we somehow override them. Maybe via package.cflags somehow or custom bashrc.d script or maybe custom eclass. Maybe there is a way to add overlay's internal use-flag like custom-cflags and let users to chose which packages this internal stuff will affect.

Other variants is to modify ebuilds itself or ask upstream to add custom-cflags or remove *-flags.

So far I tested x11-libs/gtk+-2.24.31-r1 , net-im/pidgin-2.12.0 , media-libs/libsdl2-2.0.7 , app-editors/vim-8.0.1188 and app-editors/vim-core-8.0.1188 with removed flag modifiers. And everything work w/o any issues for me. Moreover despite all this scary thing was written in 2005 ( https://bugs.gentoo.org/76331 ) vim works noticeable faster, I have more than dozen plugins installed and startup was slow for editor but now startup and navigation as fast as mcedit/mcview for example.
Looks like vim is one of the packages where -O3/graphite stuff really helps.

Certain workarounds are only necessary in the presence of particular USE flags (see #75).
It would be nice to be able to specify workarounds that apply only in these cases, for example:

media-libs/mesa[nouveau] *FLAGS-=-flto*
*/ffmpeg[cpu_flags_x86_sse4_1] *FLAGS-=-flto*

This would require some patches to make it work. One approach that works right away without any patching at all is:

media-libs/mesa "has video_cards_nouveau ${IUSE//+} && use video_cards_nouveau && FlagSubAllFlags -flto*"

(courtesy of @pchome)

As contributors of this repo, I'd like to ask you what the best approach for doing this would be. I'll leave this thread open for any discussion or ideas on this.

When you have a look at the configure output of python there is potential:
checking for --enable-optimizations... no
and further down the line
If you want a release build with all optimizations active (LTO, PGO, etc), please run ./configure --enable-optimizations
Do you see a way to incorporate that in your overlay?

I need to add
dev-python/notify-python *FLAGS-=-flto*
otherwise I get:

generating symbol list for `_pynotify.la'
gcc-nm  .libs/pynotifymodule.o .libs/pynotify.o  |  | /bin/sed 's/.* //' | sort | uniq > .libs/_pynotify.exp
../libtool: eval: line 4037: syntax error near unexpected token `|'
../libtool: eval: line 4037: `gcc-nm  .libs/pynotifymodule.o .libs/pynotify.o  |  | /bin/sed 's/.* //' | sort | uniq > .libs/_pynotify.exp'
make[2]: *** [Makefile:278: _pynotify.la] Error 2
make[2]: Leaving directory '/var/tmp/portage/dev-python/notify-python-0.1.1-r3/work/notify-python-0.1.1-python2_7/src'
make[1]: *** [Makefile:299: all-recursive] Error 1
make[1]: Leaving directory '/var/tmp/portage/dev-python/notify-python-0.1.1-r3/work/notify-python-0.1.1-python2_7'
make: *** [Makefile:209: all] Error 2
 * ERROR: dev-python/notify-python-0.1.1-r3::gentoo failed (compile phase):
 *   emake failed

This is a bit of a long running issue that unfortunately needs upstream support in order to fix. I'll detail it here for interested parties.

Upstream Gentoo bug: https://bugs.gentoo.org/603594
Upstream binutils bug: https://sourceware.org/bugzilla/show_bug.cgi?id=21479

The strip utility in LTO builds will commonly emit errors like this for static archives:

x86_64-pc-linux-gnu-strip: /dev/shm/portage/sys-libs/zlib-1.2.8-r1/image/usr/lib64/stzjlms5/adler32.o: plugin needed to handle lto object

Originally I didn't think this was a problem since that should effectively make it a no-op. I was wrong, though -- it actually makes the static archive unusable (I believe this has something to do with the index).

The real solution to this will be introducing LTO support into strip. However, a workaround is needed in the meantime. The linked upstream threads suggest a few options

• Add FEATURES=nostrip (will disable stripping entirely globally)
• Run ranlib after strip (requires a Portage patch, but it does seem to fix it... I'm unsure of the effects of this on non-LTO systems)
• Use -ffat-lto-objects or remove -flto(Obviously not ideal)

@pchome has suggested a workaround that we'll be using in the meantime, which is to set the STRIP_MASK variable to disable stripping static archives only (stripping binaries still). This is the best workaround right now until the upstream issues are sorted out. We can close this issue when things are handled properly upstream.

Could the ltoize package produce "pre-merge" messages and "post-merge" messages to inform the user of important items?

"Premerge" messages are in these (e.g., see pkg_pretend()):

• dev-lang/nqp-2017.08
• dev-lang/rakudo-2017.08

"Postmerge" messages are in these:

• dev-db/postgresql-9.6.5 , e.g., see pkg_postinst()

These configurations are wonderful! Thanks for sharing!

I am wondering if the LTO w/Graphite configurations might also useful as a Gentoo kernel profile (possibly more than one inheriting from other profiles) so ease the burdens of trying out such. The profile(s) can stipulate some of the overrides, etc. required to have things work (e.g., Perl5 w/no LTO). Over time, presumably, the need for overrides would be eliminated, etc.

Others' thoughts on this (at least as an idea)?

I noticed media-libs/mesa-17.2.3 failed to build while media-libs/mesa-17.2.2 was ok. Almost nothing changed in configs since last build and the only thing I remembered was -Wl,--as-needed accidentally (?) missed when preparing system for LTO.

So a while ago LDFLAGS="-Wl,--hash-style=gnu ${CFLAGS}" was copy-pasted from https://github.com/InBetweenNames/gentooLTO/blob/06cdb45ebfeddb6a91ec1d9fbf8dc611549db280/sys-config/ltoize/files/make.conf and then whole system was rebuilt w/ this. Until I noticed LDFLAGS="-Wl,--as-needed -Wl,--hash-style=gnu" in current make.conf.lto so copy-pasted into my make.conf again.

Busted:

libtool: link: x86_64-pc-linux-gnu-g++ -m32 -fvisibility=hidden -Werror=pointer-arith -Werror=vla -march=native -O3 -pipe -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=3 -fuse-linker-plugin -Wall -fno-math-errno -fno-trapping-math -Wl,--as-needed -Wl,--hash-style=gnu -march=native -O3 -pipe -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=3 -fuse-linker-plugin -o glsl_compiler glsl/main.o  glsl/.libs/libstandalone.a -lz -lpthread -pthread
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/32/libstdc++.so: undefined reference to `pthread_create'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/32/libstdc++.so: undefined reference to `pthread_once'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/32/libstdc++.so: undefined reference to `pthread_join'
collect2: error: ld returned 1 exit status
make[4]: *** [Makefile:2111: glsl_compiler] Error 1
make[4]: Leaving directory '/var/tmp/portage/media-libs/mesa-17.2.3/work/mesa-17.2.3-abi_x86_32.x86/src/compiler'

I'm played a bit w/ this command directly in this directory and removing -Wl,--as-needed from LDFLAGS did the trick.

I'm not sure is this related to LTO or to this https://bugs.gentoo.org/show_bug.cgi?id=as-needed bug list or misplaced library list in command.

Please check net-misc/dhcp, seems it's ok w/ graphite and lto.

Since it contains *.a :

...
# Uncomment if you have problems with packages depends on net-misc/dhcp
# net-misc/dhcp lto/ltofat.conf
...

something like this can be added to workarounds

removing lto works.

libtool: link: x86_64-pc-linux-gnu-gcc -shared -fPIC -DPIC .libs/libclamav_la-matcher-ac.o .libs/libclamav_la-matcher-bm.o .libs/libclamav_la-matcher-hash.o .libs/libclamav_la-matcher.o .libs/libclamav_la-others.o .libs/libclamav_la-readdb.o .libs/libclamav_la-cvd.o .libs/libclamav_la-dsig.o .libs/libclamav_la-scanners.o .libs/libclamav_la-textdet.o .libs/libclamav_la-filetypes.o .libs/libclamav_la-rtf.o .libs/libclamav_la-blob.o .libs/libclamav_la-mbox.o .libs/libclamav_la-message.o .libs/libclamav_la-table.o .libs/libclamav_la-text.o .libs/libclamav_la-ole2_extract.o .libs/libclamav_la-vba_extract.o .libs/libclamav_la-msexpand.o .libs/libclamav_la-pe.o .libs/libclamav_la-pe_icons.o .libs/libclamav_la-disasm.o .libs/libclamav_la-upx.o .libs/libclamav_la-htmlnorm.o .libs/libclamav_la-chmunpack.o .libs/libclamav_la-rebuildpe.o .libs/libclamav_la-petite.o .libs/libclamav_la-wwunpack.o .libs/libclamav_la-unsp.o .libs/libclamav_la-aspack.o .libs/libclamav_la-packlibs.o .libs/libclamav_la-fsg.o .libs/libclamav_la-mew.o .libs/libclamav_la-upack.o .libs/libclamav_la-line.o .libs/libclamav_la-untar.o .libs/libclamav_la-unzip.o .libs/libclamav_la-ooxml.o .libs/libclamav_la-inflate64.o .libs/libclamav_la-special.o .libs/libclamav_la-binhex.o .libs/libclamav_la-is_tar.o .libs/libclamav_la-tnef.o .libs/libclamav_la-autoit.o .libs/libclamav_la-unarj.o .libs/libclamav_la-bzlib.o .libs/libclamav_la-nulsft.o .libs/libclamav_la-infblock.o .libs/libclamav_la-pdf.o .libs/libclamav_la-pdfng.o .libs/libclamav_la-spin.o .libs/libclamav_la-yc.o .libs/libclamav_la-elf.o .libs/libclamav_la-sis.o .libs/libclamav_la-uuencode.o .libs/libclamav_la-phishcheck.o .libs/libclamav_la-phish_domaincheck_db.o .libs/libclamav_la-phish_whitelist.o .libs/libclamav_la-regex_list.o .libs/libclamav_la-regex_suffix.o .libs/libclamav_la-mspack.o .libs/libclamav_la-cab.o .libs/libclamav_la-entconv.o .libs/libclamav_la-hashtab.o .libs/libclamav_la-dconf.o .libs/libclamav_la-lzma_iface.o .libs/libclamav_la-7z_iface.o .libs/libclamav_la-7zAlloc.o .libs/libclamav_la-7zBuf.o .libs/libclamav_la-7zBuf2.o .libs/libclamav_la-7zCrc.o .libs/libclamav_la-7zDec.o .libs/libclamav_la-7zFile.o .libs/libclamav_la-7zIn.o .libs/libclamav_la-7zStream.o .libs/libclamav_la-Bcj2.o .libs/libclamav_la-Bra.o .libs/libclamav_la-Bra86.o .libs/libclamav_la-Lzma2Dec.o .libs/libclamav_la-LzmaDec.o .libs/libclamav_la-Ppmd7.o .libs/libclamav_la-Ppmd7Dec.o .libs/libclamav_la-Xz.o .libs/libclamav_la-XzCrc64.o .libs/libclamav_la-XzDec.o .libs/libclamav_la-XzIn.o .libs/libclamav_la-Delta.o .libs/libclamav_la-BraIA64.o .libs/libclamav_la-CpuArch.o .libs/libclamav_la-7zCrcOpt.o .libs/libclamav_la-explode.o .libs/libclamav_la-textnorm.o .libs/libclamav_la-dlp.o .libs/libclamav_la-js-norm.o .libs/libclamav_la-uniq.o .libs/libclamav_la-version.o .libs/libclamav_la-mpool.o .libs/libclamav_la-filtering.o .libs/libclamav_la-fmap.o .libs/libclamav_la-perflogging.o .libs/libclamav_la-bytecode.o .libs/libclamav_la-bytecode_vm.o .libs/libclamav_la-cpio.o .libs/libclamav_la-macho.o .libs/libclamav_la-ishield.o .libs/libclamav_la-bytecode_api.o .libs/libclamav_la-bytecode_api_decl.o .libs/libclamav_la-cache.o .libs/libclamav_la-bytecode_detect.o .libs/libclamav_la-events.o .libs/libclamav_la-adc.o .libs/libclamav_la-dmg.o .libs/libclamav_la-xar.o .libs/libclamav_la-xdp.o .libs/libclamav_la-mbr.o .libs/libclamav_la-gpt.o .libs/libclamav_la-apm.o .libs/libclamav_la-prtn_intxn.o .libs/libclamav_la-json_api.o .libs/libclamav_la-xz_iface.o .libs/libclamav_la-sf_base64decode.o .libs/libclamav_la-hfsplus.o .libs/libclamav_la-swf.o .libs/libclamav_la-jpeg.o .libs/libclamav_la-png.o .libs/libclamav_la-iso9660.o .libs/libclamav_la-arc4.o .libs/libclamav_la-rijndael.o .libs/libclamav_la-crtmgr.o .libs/libclamav_la-asn1.o .libs/libclamav_la-fpu.o .libs/libclamav_la-stats.o .libs/libclamav_la-www.o .libs/libclamav_la-stats_json.o .libs/libclamav_la-hostid.o .libs/libclamav_la-openioc.o .libs/libclamav_la-msdoc.o .libs/libclamav_la-matcher-pcre.o .libs/libclamav_la-regex_pcre.o .libs/libclamav_la-msxml.o .libs/libclamav_la-msxml_parser.o .libs/libclamav_la-tiff.o .libs/libclamav_la-hwp.o .libs/libclamav_la-yara_arena.o .libs/libclamav_la-yara_compiler.o .libs/libclamav_la-yara_exec.o .libs/libclamav_la-yara_hash.o .libs/libclamav_la-yara_grammar.o .libs/libclamav_la-yara_lexer.o .libs/libclamav_la-yara_parser.o .libs/libclamav_la-fp_add.o .libs/libclamav_la-fp_add_d.o .libs/libclamav_la-fp_addmod.o .libs/libclamav_la-fp_cmp.o .libs/libclamav_la-fp_cmp_d.o .libs/libclamav_la-fp_cmp_mag.o .libs/libclamav_la-fp_sub.o .libs/libclamav_la-fp_sub_d.o .libs/libclamav_la-fp_submod.o .libs/libclamav_la-s_fp_add.o .libs/libclamav_la-s_fp_sub.o .libs/libclamav_la-fp_radix_size.o .libs/libclamav_la-fp_read_radix.o .libs/libclamav_la-fp_read_signed_bin.o .libs/libclamav_la-fp_read_unsigned_bin.o .libs/libclamav_la-fp_reverse.o .libs/libclamav_la-fp_s_rmap.o .libs/libclamav_la-fp_signed_bin_size.o .libs/libclamav_la-fp_to_signed_bin.o .libs/libclamav_la-fp_to_unsigned_bin.o .libs/libclamav_la-fp_toradix.o .libs/libclamav_la-fp_toradix_n.o .libs/libclamav_la-fp_unsigned_bin_size.o .libs/libclamav_la-fp_cnt_lsb.o .libs/libclamav_la-fp_count_bits.o .libs/libclamav_la-fp_div_2.o .libs/libclamav_la-fp_div_2d.o .libs/libclamav_la-fp_lshd.o .libs/libclamav_la-fp_mod_2d.o .libs/libclamav_la-fp_rshd.o .libs/libclamav_la-fp_div.o .libs/libclamav_la-fp_div_d.o .libs/libclamav_la-fp_mod.o .libs/libclamav_la-fp_mod_d.o .libs/libclamav_la-fp_2expt.o .libs/libclamav_la-fp_exptmod.o .libs/libclamav_la-fp_ident.o .libs/libclamav_la-fp_set.o .libs/libclamav_la-fp_montgomery_calc_normalization.o .libs/libclamav_la-fp_montgomery_reduce.o .libs/libclamav_la-fp_montgomery_setup.o .libs/libclamav_la-fp_mul.o .libs/libclamav_la-fp_mul_comba.o .libs/libclamav_la-fp_mul_2.o .libs/libclamav_la-fp_mul_2d.o .libs/libclamav_la-fp_mul_comba_12.o .libs/libclamav_la-fp_mul_comba_17.o .libs/libclamav_la-fp_mul_comba_20.o .libs/libclamav_la-fp_mul_comba_24.o .libs/libclamav_la-fp_mul_comba_28.o .libs/libclamav_la-fp_mul_comba_3.o .libs/libclamav_la-fp_mul_comba_32.o .libs/libclamav_la-fp_mul_comba_4.o .libs/libclamav_la-fp_mul_comba_48.o .libs/libclamav_la-fp_mul_comba_6.o .libs/libclamav_la-fp_mul_comba_64.o .libs/libclamav_la-fp_mul_comba_7.o .libs/libclamav_la-fp_mul_comba_8.o .libs/libclamav_la-fp_mul_comba_9.o .libs/libclamav_la-fp_mul_comba_small_set.o .libs/libclamav_la-fp_mul_d.o .libs/libclamav_la-fp_mulmod.o .libs/libclamav_la-fp_invmod.o .libs/libclamav_la-fp_sqr.o .libs/libclamav_la-fp_sqr_comba_12.o .libs/libclamav_la-fp_sqr_comba_17.o .libs/libclamav_la-fp_sqr_comba_20.o .libs/libclamav_la-fp_sqr_comba_24.o .libs/libclamav_la-fp_sqr_comba_28.o .libs/libclamav_la-fp_sqr_comba_3.o .libs/libclamav_la-fp_sqr_comba_32.o .libs/libclamav_la-fp_sqr_comba_4.o .libs/libclamav_la-fp_sqr_comba_48.o .libs/libclamav_la-fp_sqr_comba_6.o .libs/libclamav_la-fp_sqr_comba_64.o .libs/libclamav_la-fp_sqr_comba_7.o .libs/libclamav_la-fp_sqr_comba_8.o .libs/libclamav_la-fp_sqr_comba_9.o .libs/libclamav_la-fp_sqr_comba_generic.o .libs/libclamav_la-fp_sqr_comba_small_set.o .libs/libclamav_la-fp_sqrmod.o .libs/libclamavS.o -Wl,--whole-archive c++/.libs/libclamavcxx.a ./.libs/libclamav_internal_utils.a -Wl,--no-whole-archive -lxml2 -llzma -licui18n -licuuc -licudata -L/usr/lib64 -lbz2 /usr/lib64/libltdl.so -ldl -lstdc++ -lssl -lcrypto -lz -lpcre2-8 -lpthread -lm -O3 -march=skylake -Wl,--as-needed -Wl,--hash-style=gnu -flto=4 -fuse-linker-plugin -O0 -Wl,--version-script -Wl,../libclamav/libclamav.map -Wl,--as-needed -Wl,--hash-style=gnu -O3 -march=skylake -flto=4 -flto=4 -fuse-linker-plugin -pthread -Wl,-soname -Wl,libclamav.so.7 -o .libs/libclamav.so.7.1.1 yara_grammar.y:796:15: warning: type of 'cli_strlcat' does not match original declaration [-Wlto-type-mismatch] strlcat($1, "i", MAX_FUNCTION_ARGS); ^ strlcat.c:38:1: note: return value type mismatch cli_strlcat(char *dst, const char *src, size_t siz) ^ /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/include/stddef.h:216:23: note: type 'size_t' should match type 'int' typedef __SIZE_TYPE__ size_t; ^ strlcat.c:38:1: note: 'cli_strlcat' was previously declared here cli_strlcat(char *dst, const char *src, size_t siz) ^ strlcat.c:38:1: note: code may be misoptimized unless -fno-strict-aliasing is used /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/portage/app-antivirus/clamav-0.99.2-r1/temp/cc6mtV7G.ltrans0.ltrans.o: warning: relocation against X86CompilationCallback2' in readonly section .text' /usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/portage/app-antivirus/clamav-0.99.2-r1/temp/cc6mtV7G.ltrans0.ltrans.o: relocation R_X86_64_PC32 against undefined symbol X86CompilationCallback2' can not be used when making a shared object; recompile with -fPIC
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: final link failed: Bad value
collect2: error: ld returned 1 exit status
make[4]: *** [Makefile:1236: libclamav.la] Error 1`

Why not use this https://github.com/mrueg/repoman-travis ?

Like my 3.4 failure, I've got no idea where to start. Thanks!

>>> Source compiled.
 * --------------------------- ACCESS VIOLATION SUMMARY ---------------------------
 * LOG FILE: "/var/log/sandbox/sandbox-10633.log"
 * 
VERSION 1.0
FORMAT: F - Function called
FORMAT: S - Access Status
FORMAT: P - Path as passed to function
FORMAT: A - Absolute Path (not canonical)
FORMAT: R - Canonical Path
FORMAT: C - Command Line

F: open_wr
S: deny
P: /usr/lib64/python3.6/site-packages/__pycache__/test.try
A: /usr/lib64/python3.6/site-packages/__pycache__/test.try
R: /usr/lib64/python3.6/site-packages/__pycache__/test.try
C: ./python -m test.regrtest -w -uall,-audio -x test_gdb test_multiprocessing test_subprocess test_tokenize test_signal test_faulthandler test_asyncio test_ctypes 

F: unlink
S: deny
P: /usr/lib64/python3.6/site-packages/__pycache__/test.try
A: /usr/lib64/python3.6/site-packages/__pycache__/test.try
R: /usr/lib64/python3.6/site-packages/__pycache__/test.try
C: ./python -m test.regrtest -w -uall,-audio -x test_gdb test_multiprocessing test_subprocess test_tokenize test_signal test_faulthandler test_asyncio test_ctypes 

F: open_wr
S: deny
P: /usr/lib64/python3.6/site-packages/__pycache__/test.try
A: /usr/lib64/python3.6/site-packages/__pycache__/test.try
R: /usr/lib64/python3.6/site-packages/__pycache__/test.try
C: ./python -m test.regrtest -w -uall,-audio -x test_gdb test_multiprocessing test_subprocess test_tokenize test_signal test_faulthandler test_asyncio test_ctypes 

F: unlink
S: deny
P: /usr/lib64/python3.6/site-packages/__pycache__/test.try
A: /usr/lib64/python3.6/site-packages/__pycache__/test.try
R: /usr/lib64/python3.6/site-packages/__pycache__/test.try
C: ./python -m test.regrtest -w -uall,-audio -x test_gdb test_multiprocessing test_subprocess test_tokenize test_signal test_faulthandler test_asyncio test_ctypes 
 * --------------------------------------------------------------------------------
`

m4 -DHAVE_CONFIG_H -D__GMP_WITHIN_GMP -DOPERATION_mullow_n_basecase -DPIC mullow_n_basecase.asm >tmp-mullow_n_basecase.s
libtool: compile: x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I.. -D__GMP_WITHIN_GMP -I.. -DOPERATION_mulhigh_n -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -c mulhigh_n.c -fPIC -DPIC -o .libs/mulhigh_n.o
x86_64-pc-linux-gnu-gcc -c -DHAVE_CONFIG_H -D__GMP_WITHIN_GMP -I.. -DOPERATION_mullow_n_basecase -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -I. -I.. tmp-mullow_n_basecase.s -fPIC -DPIC -o .libs/mullow_n_basecase.o
get_d.c: In function ‘__gmpn_get_d’:
get_d.c:125:34: error: storage size of ‘u’ isn’t known
union ieee_double_extract u;
^
make[2]: *** [Makefile:462: get_d.lo] Error 1
make[2]: *** Waiting for unfinished jobs....
libtool: compile: x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I.. -D__GMP_WITHIN_GMP -I.. -DOPERATION_mullow_basecase -march=native -O3 -fgraphite-identity -ftree-loop-distribution -floop-nest-optimize -flto=8 -fuse-linker-plugin -pipe -fomit-frame-pointer -fno-stack-protector -w -Wl,--as-needed -Wl,--hash-style=gnu -Wl,-O2 -c mullow_basecase.c -fPIC -DPIC -o .libs/mullow_basecase.o
make[2]: Leaving directory '/var/tmp/portage/sci-libs/mpir-3.0.0/work/mpir-3.0.0/mpn'
make[1]: *** [Makefile:952: all-recursive] Error 1
make[1]: Leaving directory '/var/tmp/portage/sci-libs/mpir-3.0.0/work/mpir-3.0.0'
make: *** [Makefile:755: all] Error 2

• ERROR: sci-libs/mpir-3.0.0::gentoo failed (compile phase):
• emake failed
• If you need support, post the output of emerge --info '=sci-libs/mpir-3.0.0::gentoo',
• the complete build log and the output of emerge -pqv '=sci-libs/mpir-3.0.0::gentoo'.
• The complete build log is located at '/var/tmp/portage/sci-libs/mpir-3.0.0/temp/build.log'.
• The ebuild environment file is located at '/var/tmp/portage/sci-libs/mpir-3.0.0/temp/environment'.
• Working directory: '/var/tmp/portage/sci-libs/mpir-3.0.0/work/mpir-3.0.0'
• S: '/var/tmp/portage/sci-libs/mpir-3.0.0/work/mpir-3.0.0'
  root@Villingili /e/portage# grep mpir /etc/portage/ -r

Build with *FLAGS-="${FLTO}", log:

Zend/zend_vm_execute.h:321:34: error: global register variable follows a function definition
 register const zend_op* volatile opline __asm__(ZEND_VM_IP_GLOBAL_REG);
                                  ^
Zend/zend_vm_execute.h: In function 'zend_vm_call_opcode_handler':
Zend/zend_vm_execute.h:315:38: error: global register variable follows a function definition
 register zend_execute_data* volatile execute_data __asm__(ZEND_VM_FP_GLOBAL_REG);
                                      ^
make[1]: *** [/var/tmp/portage/dev-lang/php-7.0.23/temp/ccgewnNE.mk:86: /var/tmp/portage/dev-lang/php-7.0.23/temp/ccoGFuFY.ltrans28.ltrans.o] Error 1
make[1]: *** Waiting for unfinished jobs....
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.
/usr/lib/gcc/x86_64-pc-linux-gnu/7.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: fatal error: lto-wrapper failed
collect2: error: ld returned 1 exit status

Adding Graphite GCC flags without ISL emerged causes GCC failure. Perhaps you can add it as a dependancy.

Hi everyone,

I was working on refining make.conf today and I noticed a bit of an oddity. On GCC's docs, they give a list of all optimizations enabled by default at O3:

https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html

Curiously, they list -ftree-loop-distribution as being enabled by default by O3, but in my own GCC it remains disabled:

>gcc --version
gcc (Gentoo 7.2.0 p1.1) 7.2.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

>gcc -c -Q -O3 --help=optimizers | grep distribut                                                                                                                                                                                                                       Tue 12 Sep 2017 09:37:44 AM EDT
  -ftree-loop-distribute-patterns       [enabled]
  -ftree-loop-distribution              [disabled]

I was wondering if anyone could check if this is the case on their systems too? Please include your GCC version in your response. If I can get at least one person to reproduce this bug I'll make a bug report in GCC.