# Copyright 1999-2023 Gentoo Authors # Distributed under the terms of the GNU General Public License v2 #################################################################### # # When you add an entry to the top of this file, add your name, the date # in the UTC timezone with a format of YYYY-MM-DD, and an explanation of why # something is getting masked. # Please be extremely careful not to commit atoms that are not valid, as it can # cause large-scale breakage, especially if it ends up in the daily snapshot. # ## Example: ## ## # Dev E. Loper (2019-07-01) ## # Masking these versions until we can get the ## # v4l stuff to work properly again ## =media-video/mplayer-0.90_pre5 ## =media-video/mplayer-0.90_pre5-r1 # # - Best last rites (removal) practices - # Include the following info: # a) reason for masking # b) bug # for the removal (and yes you should have one) # c) date of removal (either the date or "in x days") # ## Example: ## ## # Dev E. Loper (2019-07-01) ## # Masked for removal in 30 days. Doesn't work ## # with new libfoo. Upstream dead, gtk-1, smells ## # funny. (bug #987654) ## app-misc/some-package #--- END OF EXAMPLES --- # James Le Cuirot (2023-06-25) # Impossible to legally obtain the original native full game now. It freezes on # keyboard input, is incompatible with PipeWire, and requires gamescope to work # under Wayland. In short, it's a lost cause. Removal in 30 days. Bug #436140. # There is a modern SDL2-based port, but it is only available from Steam. games-action/descent3 games-action/descent3-demo # Michał Górny (2023-06-24) # Breaks dev-python/setuptools-rust. # https://github.com/scikit-build/scikit-build-core/issues/413 <=dev-python/scikit-build-core-0.4.7 # Ionen Wolkens (2023-06-24) # This version is fine but it depends on >=virtual/rust-1.70 which is # currently masked. Feel free to unmask if you are using 1.70. ~app-emulation/ruffle-0_p20230624 # Hans de Graaff (2023-06-23) # Deprecated upstream, who recommends to use the Open3 method instead. # No reverse dependencies. Masked for removal on 2023-07-23. dev-ruby/subexec # Hans de Graaff (2023-06-23) # Deprecated package. Renamed to dev-ruby/optimist by upstream. No # reverse dependencies. Masked for removal on 2023-07-23. dev-ruby/trollop # Sam James (2023-06-23) # Segfaults with non-bison yacc. =app-shells/bash-5.2_p15-r4 # Matt Turner (2023-06-22) # Dead slot. Depends on x11-libs/gtk+:2. # Removal on 2023-07-22. Bug #769500. x11-libs/libwnck:1 # Matt Turner (2023-06-22) # Dead package. Depends on x11-libs/libwnck:1. # Removal on 2023-07-22. Bug #774906. dev-perl/gnome2-wnck # Matt Turner (2023-06-22) # Depends on deprecated packages: # - dev-perl/Gtk2 # - dev-perl/Gtk2-Notify # - dev-perl/gnome2-wnck # No maintainer in Gentoo. Seems unmaintained upstream as well. # Removal on 2023-07-22. Bug #774909. media-sound/gmusicbrowser # Sam James (2023-06-22) # Causes segfaults in dependent dev-util/conf2struct. # See bug #908989 and related bug #908982. =dev-perl/Conf-Libconfig-1.0.0 # Fabian Groffen (2023-06-21) # Ancient OSX integration package, not keyworded for any current arch # Removal on 2023-07-21. Bug #908938. x11-themes/gtk-engines-quartz # Michał Górny (2023-06-21) # suitesparseconfig-7.0.0 fails to build with multilib enabled # because of dependencies that cannot be satisfied. All the other # packages require it. Bug #908851. =sci-libs/amd-3.0.3 =sci-libs/btf-2.0.3 =sci-libs/camd-3.0.3 =sci-libs/ccolamd-3.0.3 =sci-libs/cholmod-4.0.3 =sci-libs/colamd-3.0.3 =sci-libs/cxsparse-4.0.3 =sci-libs/klu-2.0.3 =sci-libs/ldl-3.0.3 =sci-libs/spqr-3.0.3 =sci-libs/suitesparseconfig-7.0.0 =sci-libs/umfpack-6.1.0 # Mike Pagano (2023-06-18) # Last upstream activity in 2018, EAPI 7. # See app-crypt/swtpm for an alternative. # Removal on 2023-07-18. Bug #768960, #794547. app-crypt/tpm-emulator # Hans de Graaff (2023-06-18) # Obsolete slot. Use the newer slot instead. # Masked for removal on 2023-07-18. dev-ruby/database_cleaner-active_record:2.0 # Sam James (2023-06-16) # Please upgrade to >=app-admin/eselect-1.4.22-r1 for a fix to env-update # and the files it generates in /etc/env.d: bug #908401, then run env-update # and . /etc/profile. (2023-06-16) # Obsolete slots without reverse dependencies that require rails 6.0 to # be present. Use the newer slots if needed. # Masked for removal on 2023-07-16. dev-ruby/roadie:4 dev-ruby/roadie-rails:2 # Hans de Graaff (2023-06-16) # Rails 6.0 is no longer supported upstream and limited to ruby30. Use a # newer Rails version instead. Masked for removal on 2023-07-16. dev-ruby/rails:6.0 dev-ruby/railties:6.0 dev-ruby/actionmailbox:6.0 dev-ruby/actiontext:6.0 dev-ruby/activerecord:6.0 dev-ruby/actionmailer:6.0 dev-ruby/activestorage:6.0 dev-ruby/actionpack:6.0 dev-ruby/actionview:6.0 dev-ruby/activejob:6.0 dev-ruby/actioncable:6.0 dev-ruby/activemodel:6.0 dev-ruby/activesupport:6.0 # Hans de Graaff (2023-06-16) # Obsolete slot. Use the newer 0.7 slot instead. # Masked for removal on 2023-07-16. dev-ruby/websocket-driver:0 # Tomáš Mózes (2023-06-12) # Buggy version that causes ibdata1 to grow, please update. See bug #908394. =dev-db/mariadb-10.5.20 =dev-db/mariadb-10.6.13 =dev-db/mariadb-10.11.2 =dev-db/mariadb-10.11.3 # Sam James (2023-06-12) # Installs no files with newer versions because GTK 2 support was dropped upstream. # Removal on 2023-07-12. Bug #908378. dev-ruby/ruby-gtk2 # Sam James (2023-06-10) # Integrated into media-libs/gst-plugins-bad[vaapi]. Please use that instead. # Removal in 14 days. media-plugins/gst-plugins-va # Michał Górny (2023-06-10) # Renamed to dev-python/pypdf. No revdeps left. # Removal on 2023-07-10. Bug #908227. dev-python/PyPDF2 # Michał Górny (2023-06-09) # Requires dev-python/nose. Last activity in 2013. No reverse # dependencies left. # Removal on 2023-07-09. Bug #888245. dev-python/doctest-ignore-unicode # Georgy Yakovlev (2023-06-08) # May be broken on some arches due to weird LLVM interaction. # Masked for now. # https://github.com/rust-lang/rust/issues/112286 ~dev-lang/rust-1.70.0 ~dev-lang/rust-bin-1.70.0 ~virtual/rust-1.70.0 # Volkmar W. Pogatzki (2023-06-06) # Vulnerable CVE-2023-33546, Bug #907927. # Reverse deps (logback-*, netty) are unused Java libraries. # Removal on 2023-07-06. dev-java/janino dev-java/logback-core dev-java/logback-classic dev-java/netty # Sam James (2023-06-06) # Causes "illegal instruction" (SIGILL) errors for some users, pending investigation. # See bug #907932. =dev-libs/nss-3.90 # Sam James (2023-06-05) # Fails to bootstrap, see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110120. =sys-devel/gcc-14.0.0_pre20230604 # Michael Orlitzky (2023-06-04) # Obsolete and insecure SageMath (out of tree) dependency. # Removal on 2023-07-04. sci-mathematics/flintqs # Michał Górny (2023-06-03) # Obsoleted by dev-python/pyspnego. No revdeps left. # Removal on 2023-07-03. Bug #895004. dev-python/ntlm-auth # Bernd Waibel (2023-05-31) # Mask this version for uptime soversion issue. There will be an updated release # shortly which fixes this. # See https://github.com/AcademySoftwareFoundation/Imath/issues/189#issuecomment-1567077722 # Bug: #907211 =dev-libs/imath-3.1.7 # Andeas K. Hüttel (2023-06-02) # Work in progress =dev-lang/perl-5.38* ~virtual/perl-Attribute-Handlers-1.30.0 ~virtual/perl-autodie-2.360.0 ~virtual/perl-bignum-0.660.0 ~virtual/perl-Carp-1.540.0 ~virtual/perl-Compress-Raw-Bzip2-2.204.1_rc ~virtual/perl-Compress-Raw-Zlib-2.204.1_rc ~virtual/perl-CPAN-2.360.0 ~virtual/perl-Data-Dumper-2.188.0 ~virtual/perl-DB_File-1.858.0 ~virtual/perl-Devel-PPPort-3.710.0 ~virtual/perl-Digest-MD5-2.580.100_rc ~virtual/perl-Digest-SHA-6.40.0 ~virtual/perl-Encode-3.190.0 ~virtual/perl-ExtUtils-CBuilder-0.280.238 ~virtual/perl-ExtUtils-Install-2.220.0 ~virtual/perl-ExtUtils-MakeMaker-7.700.0 ~virtual/perl-ExtUtils-ParseXS-3.510.0 ~virtual/perl-File-Spec-3.880.0 ~virtual/perl-Getopt-Long-2.540.0 ~virtual/perl-HTTP-Tiny-0.82.0 ~virtual/perl-HTTP-Tiny-0.83.0_rc ~virtual/perl-HTTP-Tiny-0.86.0 ~virtual/perl-IO-1.520.0 ~virtual/perl-IO-Compress-2.204.0 ~virtual/perl-IO-Socket-IP-0.410.100_rc ~virtual/perl-IO-Zlib-1.140.0 ~virtual/perl-JSON-PP-4.160.0 ~virtual/perl-libnet-3.150.0 ~virtual/perl-Locale-Maketext-1.330.0 ~virtual/perl-Math-BigInt-1.999.837 ~virtual/perl-Math-BigInt-FastCalc-0.501.300 ~virtual/perl-Math-BigRat-0.262.400 ~virtual/perl-Math-Complex-1.620.0 ~virtual/perl-Memoize-1.160.0 ~virtual/perl-MIME-Base64-3.160.100_rc ~virtual/perl-Module-CoreList-5.202.305.200 ~virtual/perl-Module-CoreList-5.202.306.170 ~virtual/perl-Module-CoreList-5.202.306.230 ~virtual/perl-Net-Ping-2.760.0 ~virtual/perl-parent-0.241.0 ~virtual/perl-podlators-5.10.0 ~virtual/perl-Safe-2.440.0 ~virtual/perl-Scalar-List-Utils-1.630.0 ~virtual/perl-Socket-2.36.0 ~virtual/perl-Storable-3.320.0 ~virtual/perl-Test-Simple-1.302.194 ~virtual/perl-Text-Balanced-2.60.0 ~virtual/perl-threads-2.360.0 ~virtual/perl-threads-shared-1.680.0 ~virtual/perl-Time-HiRes-1.977.500 ~virtual/perl-Time-Piece-1.340.101_rc ~virtual/perl-Unicode-Normalize-1.320.0 ~virtual/perl-XSLoader-0.320.0 # Michał Górny (2023-05-31) # Unmaintained. Last commit in 2020. Does not work with Python 3.12. # No revdeps. # Removal on 2023-06-30. Bug #907495. dev-python/http-parser # Sam James (2023-05-29) # Masked until enough reverse dependencies are fixed, bug #901257. =media-video/ffmpeg-6* # Andreas K. Hüttel (2023-05-28) # Causes only problems, at negligible gain. Removal in 30days. # Bugs 880573, 864157, 885471, 870454, 884571 sys-libs/libbacktrace # Sam James (2023-05-24) # Breaks building C++ consumers at least: bug #906755, bug #906879, bug #906957. # Please upgrade to >=0.5.1. =net-libs/libproxy-0.5.0 # Sam James (2023-05-23) # Argument splitting seems broken, see bug #906892 and https://github.com/ffi/ffi-compiler/issues/23. =dev-ruby/ffi-compiler-1.2.0 # Sam James (2023-05-20) # Various regressions, please upgrade to the latest libxml2 (>=2.11.4). =dev-libs/libxml2-2.11.1 =dev-libs/libxml2-2.11.2 =dev-libs/libxml2-2.11.2-r1 =dev-libs/libxml2-2.11.3 # Sam James (2023-05-19) # Breaks Portage's pid-sandbox at least with 5.10 kernels. Pending investigation. # If you're hitting this, try: FEATURES="-pid-sandbox" emerge -v1 sys-apps/util-linux # as a workaround. bug #906797. ~sys-apps/util-linux-2.39 # David Seifert (2023-05-19) # Abandoned, NIH library only used by other obsolete packages like gkeys # and layman, use app-crypt/gpgme[python] as a proper upstream # supported gpg library. Removal on 2023-08-17. dev-python/pyGPG # David Seifert (2023-05-19) # Abandoned, replaced by 'eselect repository', tons of open bugs. # Removal on 2023-08-17. Bug #761199. app-portage/layman # Sam James (2023-05-10) # A major reverse depndency (kde-apps/libkexiv2) does not yet build against this # so mask for now, see bug #906087 and bug #906090. =media-gfx/exiv2-0.28.0 # Sam James (2023-05-10) # Lots of package breakage as usual for new versions. Masked until most/all # reverse dependencies are fixed. Tracker bug is bug #906077. =dev-libs/libfmt-10* # Michał Górny (2023-05-05) # The Gentoo packages are severely out of date, and they haven't been # ported to Python 3.11. They are hard to keep working, and there # are better alternatives available. The suggested replacements are: # media-gfx/prusaslicer, media-gfx/superslicer and orcaslicer # (not packaged). # Removal on 2023-08-04. Bug #905769. media-gfx/cura acct-group/ultimaker acct-user/ultimaker dev-libs/libarcus dev-libs/clipper dev-libs/libcharon dev-libs/libnest2d dev-libs/libsavitar dev-python/pynest2d dev-python/uranium media-gfx/fdm-materials media-gfx/curaengine # Sam James (2023-05-03) # Broken pkgconfig file, please upgrade to -r1. # bug #704348, bug #905632, bug #905822 =sci-libs/metis-5.2.1 =sci-libs/metis-5.2.1-r1 =sci-libs/parmetis-4.0.3_p20230326 # Sam James (2023-05-01) # Breaks dev-python/scipy build. See bug #905396 and https://github.com/serge-sans-paille/gast/issues/74. =dev-python/pythran-0.13.0 =dev-python/gast-0.5.4 # Sam James (2023-05-01) # Quite broken, see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109672. =sys-devel/gcc-14.0.0_pre20230430 # Andreas Sturmlechner 2023-04-30 # Breaking even latest ~arch version of KDE PIM, bug #905352. =dev-libs/ktextaddons-1.3* # Sam James (2023-04-19) # Last-minute libstdc++ symbol versioning magic causes e.g. mold, cmake # to segfault: # - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108969 # - https://bugzilla.redhat.com/show_bug.cgi?id=2187768#c4 # 13.0.1_pre20230419 was GCC 13.1 RC1. RC2 will be made when this is fixed. =sys-devel/gcc-13.0.1_pre20230419 # Michał Górny (2023-04-18) # Breaks ABI without SOVERSION bump, effectively preventing # xfce4-terminal from starting. # https://bugs.gentoo.org/904500 =xfce-base/libxfce4ui-4.19.0 # Sam James (2023-04-16) # SEEK_HOLE issues causing corruption with (sparse?) copies again. # See https://github.com/openzfs/zfs/issues/14753. =sys-fs/zfs-kmod-2.1.10 # Sam James (2023-04-13) # Leads to broken terminal output in e.g. vim and openrc and other applications # like joe crashing. # Bugs: # - reported at bottom of bug #904247 and bug #904263 # - app-misc/tmux: https://github.com/tmux/tmux/issues/3531 # - sys-apps/openrc: https://github.com/OpenRC/openrc/issues/619 =sys-libs/ncurses-6.4_p20230424 =sys-libs/ncurses-6.4_p20230506 =sys-libs/ncurses-6.4_p20230527 # Eray Aslan (2023-04-12) # Mask experimental software =mail-mta/postfix-3.9* # Ulrich Müller (2023-04-10) # Pretest versions, masked for testing. (2023-03-30) # NVIDIA dropped support for the 390.xx branch in December 2022[1]. # # Users are free to unmask and keep using, but be warned it is very # likely to be affected by security issues as NVIDIA does not track # nor fix these for this branch anymore. # # Gentoo will keep it packaged for as long as reasonably possible # (albeit masked) but no true support will be given nor patches # for newer kernels. It is recommended to use 6.1.x LTS kernels or # older (6.1.x will be supported until at least December 2026). # # Major issues will lead to removal without further warning, e.g. # if no usable kernels left in tree, or if broken with a newer Xorg. # # >> It is recommended to switch to nouveau[2] drivers (regardless # of its worse performance), or ideally replace the hardware. # # [1] https://nvidia.custhelp.com/app/answers/detail/a_id/3142 # [2] https://wiki.gentoo.org/wiki/Nouveau x11-drivers/nvidia-drivers:0/390 # Sam James (2023-03-29) # Regressions in solving ability affecting e.g. igraph: # https://github.com/opencollab/arpack-ng/issues/401 # https://github.com/opencollab/arpack-ng/issues/410 # https://github.com/opencollab/arpack-ng/issues/411 # https://github.com/igraph/igraph/issues/2311 =sci-libs/arpack-3.9.0 # Sam James (2023-03-24) # Please upgrade to make-4.4.1 as make-4.4 has a bunch of issues. =sys-devel/make-4.4 # Hans de Graaff (2023-03-19) # This version of cucumber-core is not compatible with the other # cucumber dependencies. Please downgrade cucumber-core. =dev-util/cucumber-core-11.1.0 # Sam James (2023-03-16) # Breaks building C++ consumers. See bug #901211 and bug #901035. # Please upgrade to glib-2.76.0-r1. =dev-libs/glib-2.76.0 # Mike Pagano (2023-03-10) # Mask =sys-kernel/gentoo-sources-5.15.99 since it does # not include 5.15.99 and is misleading =sys-kernel/gentoo-sources-5.15.99 # Mike Pagano (2023-02-27) # Mask =www-servers/nginx-unit-1.29.0-r1 for testing =www-servers/nginx-unit-1.29.0-r1 # Torokhov Sergey (2023-02-26) # The masked version causes GIMP breaking of Cut/Copy/Paste # https://gitlab.gnome.org/GNOME/gimp/-/issues/9175 =media-libs/babl-0.1.100 # Michał Górny (2023-02-25) # Major update. Multiple packages are known to be broken. # Masked for further testing. >=dev-python/cython-3 # Ben Kohler (2023-01-30) # Breaks too many revdeps for now =app-text/discount-3* # Georgy Yakovlev (2022-12-19) # This version currently is not compatible with kernel build (yet) ~dev-util/bindgen-0.63.0 # Jaco Kroon (2022-11-05) # Some potentially breaking changes here, please check the UPGRADE.txt file. # Most important: chan_sip no longer builds by default, if you've migrated to # PJSIP you should be OK and most likely you should be able to safely unmask. # For now to prevent accidental upgrades and to allow proper testing this will # be in place for minimum six months (2023-04-22). =net-misc/asterisk-20* =net-misc/asterisk-opus-20* =net-misc/asterisk-g729-20* # John Helmert III (2022-10-16) # (2022-09-18) # Unfixed root privilege escalation, bug #631552 sys-cluster/slurm # hololeap (2022-08-21) # doctest-parallel does not currently work with Setup.hs (used internally by # haskell-cabal.eclass) # See: dev-haskell/doctest-parallel # Sam James (2022-05-28) # GCC 9 and older no longer receive upstream support or fixes for # bugs. Please switch to a newer GCC version using gcc-config. # The lowest supported version of GCC is GCC 10. (2022-04-29) # Apparently the "b" in version means "beta". 3.24 is available, we # should update to that. #841437 ~sci-physics/bullet-3.22b # Brian Evans (2022-01-07) # The main consumer, phpunit, does not initiate the new timer correctly # This is likely to cause issues in tests; Unmask if using for other purposes >=dev-php/PHP_Timer-5.0 # Volkmar W. Pogatzki (2021-11-23) # Does not support updated dev-java/pdfbox-2.0.24, Bug #803488 # Blocks (CVE-2018-11797, CVE-2021-{27807,27906,31811,31812}) dev-tex/pdfannotextractor # Ionen Wolkens (2021-10-09) # Vulkan beta driver branch aimed at Vulkan developers for testing # new features. Beside vulkan, it is typically behind the main branch # and may be buggier or less secure. Only unmask if really wanted. x11-drivers/nvidia-drivers:0/vulkan # Mart Raudsepp (2021-09-23) # Incompatible with c++17 abseil-cpp, no in-tree consumers yet media-libs/webrtc-audio-processing:1 # Andreas K. Hüttel (2021-09-18) # sys-devel/automake version 1.11 is EOL and is only useful for testing # old de-ANSI-fication/ansi2knr/AM_C_PROTOTYPES code. Please uninstall. sys-devel/automake:1.11 # Joonas Niilola (2021-07-29) # Upstream provided migration instructions from 2. -> 3. update, # breaks if not all at least many revdeps. #805011 for tracker bug. >=net-libs/mbedtls-3.0.0 # Michał Górny (2021-07-06) # Upstream changed license to GPL-3+ in order to deliberately cause # incompatiblity with revdep licenses. Mask until the situation # is resolved. Bug #791259. >=media-libs/libopenaptx-0.2.1 # Ulrich Müller (2021-04-20) # Version 3.15 is broken with Emacs 27.2. =app-emacs/mic-paren-3.15-r0 # Sam James (2021-03-30) # Seems to break dev-tex/culmus-latex # Masking until we can investigate & fix # bug #737406 =media-fonts/culmus-0.133-r1 # Sam James (2021-03-03) # Doesn't seem to sync clock correctly # in some cases. # bug #772998 ~net-misc/openntpd-6.8_p1 # Michał Górny (2020-11-10) # This old Kodi version requires vulnerable dev-python/pillow # and prevents users from upgrading. Masked for the time being. # Bug #729672. media-plugins/kodi-game-libretro-nestopia media-plugins/kodi-game-libretro-dosbox # Sam James (2020-10-05) # Masked for testing. New major versions of Guile # often break reverse dependencies. # Guile in Gentoo is not slotted, so let's be cautious. # bug #705554, bug #689408. >=dev-scheme/guile-3.0.4 # Matt Turner (2019-09-01) # TeXmacs is the only remaining package in tree that requires guile-1.8, which # is unsupported upstream. A TeXmacs port to Guile-2 has been in progress for a # few years. Bug #436400 app-office/texmacs (2018-10-07) # Masked for more testing especially of reverse-deps. # ogre 1.11/1.12 breakage: bug #834468 # ogre 2.x breakage: bug #740424 >=dev-games/ogre-1.11.2 # Andreas K. Hüttel (2018-09-11) # Mask transition ebuilds that were needed only for (2017-10-31) # There are multiple unresolved upstream issues with >=jabref-bin-4.0 (#636036). # If you still would like to use this version, please report any issues to # upstream. >=app-text/jabref-bin-4.0 # Michał Górny (2017-05-22) # for Maciej S. Szmigiero # Any version above 5.100.138 breaks b43 driver in various ways. # Also, b43 wiki page says to use 5.100.138. Bug #541080. >=sys-firmware/b43-firmware-6.30.163.46 # Andreas K. Hüttel (2017-05-21) # (and others, updated later) # These old versions of toolchain packages (binutils, gcc, glibc) are no # longer officially supported and are not suitable for general use. Using # these packages can result in build failures (and possible breakage) for # many packages, and may leave your system vulnerable to known security # exploits. # If you still use one of these old toolchain packages, please upgrade (and # switch the compiler / the binutils) ASAP. If you need them for a specific # (isolated) use case, feel free to unmask them on your system. (2017-01-07) # This package has some dangerous quality and security issues, but # people may still find it useful. It is masked to prevent accidental # use. See bugs 603346 and 604998 for more information. app-admin/amazon-ec2-init # Mike Gilbert (2014-03-04) # Dev channel releases are only for people who are developers or want more # experimental features and accept a more unstable release. www-plugins/chrome-binary-plugins:unstable # Diego E. Pettenò (2009-01-03) # These packages are not supposed to be merged directly, instead # please use sys-devel/crossdev to install them. dev-util/mingw64-runtime sys-libs/newlib dev-embedded/avr-libc sys-devel/nvptx-tools