This is with both gcc-6.4.0 and gcc-7.2.0: In file included from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/numerics/checked_math.h:13:0, from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/numerics/safe_math.h:8, from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/time/time.h:63, from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/threading/platform_thread.h:16, from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/synchronization/lock.h:12, from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/sequence_checker_impl.h:13, from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/sequence_checker.h:10, from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/memory/ref_counted.h:19, from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/pickle.h:17, from /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/pickle.cc:5: /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/numerics/checked_math_impl.h: In instantiation of ‘static constexpr bool base::internal::CheckedMulOp<T, U, typename std::enable_if<(std::is_integral<_Tp>::value && std::is_integral<_Tp2>::value)>::type>::Do(T, U, V*) [with V = long unsigned int; T = int; U = long unsigned int]’: /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/numerics/checked_math.h:235:17: required from ‘static constexpr base::internal::CheckedNumeric<T> base::internal::CheckedNumeric<T>::MathOp(L, R) [with M = base::internal::CheckedMulOp; L = int; R = long unsigned int; T = long unsigned int]’ /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/numerics/checked_math.h:325:72: required from ‘constexpr base::internal::CheckedNumeric<typename base::internal::MathWrapper<M, L, R>::type> base::internal::CheckMathOp(L, R) [with M = base::internal::CheckedMulOp; L = int; R = long unsigned int; typename base::internal::MathWrapper<M, L, R>::type = long unsigned int]’ /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/numerics/checked_math.h:341:1: required from ‘constexpr base::internal::CheckedNumeric<typename base::internal::ResultType<base::internal::CheckedMulOp, L, R, Args ...>::type> base::internal::CheckMul(L, R, const Args ...) [with L = int; R = long unsigned int; Args = {}; typename base::internal::ResultType<base::internal::CheckedMulOp, L, R, Args ...>::type = long unsigned int]’ /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/pickle.cc:79:43: required from here /var/tmp/portage/www-client/chromium-63.0.3230.0/work/chromium-63.0.3230.0/base/numerics/checked_math_impl.h:186:15: error: uninitialized variable ‘presult’ in ‘constexpr’ function Promotion presult; ^~~~~~~ I believe this started with upstream https://chromium-review.googlesource.com/c/chromium/src/+/603127 .
Fix is on the way to upstream: https://chromium-review.googlesource.com/c/chromium/src/+/730709
Created attachment 499762 [details, diff] 0001-Fix-the-build-of-base-numerics-with-GCC.patch
Created attachment 500526 [details, diff] Updated patch This gets the build working with Chromium 63.0.3230.0
For which compiler? Chromium 63.0.3230.0 told me, that I can't build it with the gcc, I had to use clang.
You need to remove the following 3 lines from the ebuild: if tc-is-gcc; then die "Known build break with gcc, see https://bugs.gentoo.org/633452 . Use clang as workaround." fi And add in "${FILESDIR}/0001-Fix-the-build-of-base-numerics-with-GCC.patch" I've got an ebuild in the FireBurn overlay, I'll attach the ebuild here
Created attachment 501704 [details] chromium ebuild Just for the lazy ;) Adds in the extra epatch and removes the ekill for gcc
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=b3838ab55a3424aa163316503389b36d7e7a8c37 commit b3838ab55a3424aa163316503389b36d7e7a8c37 Author: Mike Gilbert <floppym@gentoo.org> AuthorDate: 2017-11-04 14:51:38 +0000 Commit: Mike Gilbert <floppym@gentoo.org> CommitDate: 2017-11-04 14:52:49 +0000 www-client/chromium: beta channel bump (63.0.3239.30) Closes: https://bugs.gentoo.org/633452 Closes: https://bugs.gentoo.org/633858 Package-Manager: Portage-2.3.13_p1, Repoman-2.3.3_p81 www-client/chromium/Manifest | 2 +- ....3223.8.ebuild => chromium-63.0.3239.30.ebuild} | 27 +++++++++-------- www-client/chromium/files/chromium-webrtc-r0.patch | 34 ++++++++++++++++++++++ 3 files changed, 50 insertions(+), 13 deletions(-)
