https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: dev-ml/dose3-7.0.0 fails to compile (lto). Discovered on: amd64 (internal ref: lto_tinderbox) NOTE: This machine uses lto with CFLAGS=-flto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing Here is a bit of explanation: -Werror=lto-type-mismatch: User to find possible runtime issues in packages. It likely means the package is unsafe to build & use with LTO. For projects using the same identifier but with different types across different files, they must be fixed to be consistent across the codebase. -Werror=odr: Used to find possible runtime issues in packages. These bugs are a problem anyway but may be even worse when combined with LTO. C++ code must comply with the One Definition Rule (ODR) - see https://en.cppreference.com/w/cpp/language/definition#One_Definition_Rule. -Werror=strict-aliasing: Used to find possible runtime issues in packages. These bugs are a problem anyway but may be even worse when combined with LTO. Workarounds: - If upstream is friendly and still active, file a bug upstream. For emulators, codecs, games, or multimedia packages, it may be worth just applying a workaround instead, as upstreams sometimes aren't receptive to these bugs (VALID FOR ALL). - Use the new 'filter-lto' from flag-o-matic.eclass as it's likely to be unsafe with LTO (VALID FOR lto-type-mismatch - odr). - Fix it yourself if interested, of course (VALID FOR ALL). - Append-flags -fno-strict-aliasing (VALID FOR strict-aliasing). - Use memcpy() but a union is sometimes suitable too (VALID FOR strict-aliasing). - -fstrict-aliasing is implied by -O2, so this must be addressed in some form (VALID FOR strict-aliasing). See also: https://marc.info/?l=gentoo-dev&m=165639574126280&w=2
Created attachment 814204 [details] build.log build log and emerge --info
Error(s) that match a know pattern in addition to what has been reported in the summary: /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc13V9Hq.ltrans0.ltrans.o:(.debug_info+0x80): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc13V9Hq.ltrans0.ltrans.o:(.debug_info+0x9b): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc13V9Hq.ltrans0.ltrans.o:(.debug_info+0xa2): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc13V9Hq.ltrans0.ltrans.o:(.debug_info+0xa9): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc13V9Hq.ltrans0.ltrans.o:(.debug_info+0xb0): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc64f2kJ.ltrans0.ltrans.o:(.debug_info+0x80): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc64f2kJ.ltrans0.ltrans.o:(.debug_info+0x9b): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc64f2kJ.ltrans0.ltrans.o:(.debug_info+0xa2): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc64f2kJ.ltrans0.ltrans.o:(.debug_info+0xa9): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/cc64f2kJ.ltrans0.ltrans.o:(.debug_info+0xb0): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccIVzIg7.ltrans0.ltrans.o:(.debug_info+0x80): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccIVzIg7.ltrans0.ltrans.o:(.debug_info+0x9b): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccIVzIg7.ltrans0.ltrans.o:(.debug_info+0xa2): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccIVzIg7.ltrans0.ltrans.o:(.debug_info+0xa9): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccIVzIg7.ltrans0.ltrans.o:(.debug_info+0xb0): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccfFJH8q.ltrans0.ltrans.o:(.debug_info+0x80): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccfFJH8q.ltrans0.ltrans.o:(.debug_info+0x9b): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccfFJH8q.ltrans0.ltrans.o:(.debug_info+0xa2): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccfFJH8q.ltrans0.ltrans.o:(.debug_info+0xa9): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccfFJH8q.ltrans0.ltrans.o:(.debug_info+0xb0): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccijL7yw.ltrans0.ltrans.o:(.debug_info+0x80): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccijL7yw.ltrans0.ltrans.o:(.debug_info+0x9b): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccijL7yw.ltrans0.ltrans.o:(.debug_info+0xa2): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccijL7yw.ltrans0.ltrans.o:(.debug_info+0xa9): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccijL7yw.ltrans0.ltrans.o:(.debug_info+0xb0): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccmpIkyj.ltrans0.ltrans.o:(.debug_info+0x80): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccmpIkyj.ltrans0.ltrans.o:(.debug_info+0x9b): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccmpIkyj.ltrans0.ltrans.o:(.debug_info+0xa2): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccmpIkyj.ltrans0.ltrans.o:(.debug_info+0xa9): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccmpIkyj.ltrans0.ltrans.o:(.debug_info+0xb0): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccsD59RZ.ltrans0.ltrans.o:(.debug_info+0x80): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccsD59RZ.ltrans0.ltrans.o:(.debug_info+0x9b): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccsD59RZ.ltrans0.ltrans.o:(.debug_info+0xa2): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccsD59RZ.ltrans0.ltrans.o:(.debug_info+0xa9): undefined reference to `zlibstubs.c.2afc682a' /usr/lib/gcc/x86_64-pc-linux-gnu/12.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: /var/tmp/portage/dev-ml/dose3-7.0.0/temp/buildfa0a3b.dune/ccsD59RZ.ltrans0.ltrans.o:(.debug_info+0xb0): undefined reference to `zlibstubs.c.2afc682a' Error: Error during linking (exit code 1) fatal: not a git repository (or any parent up to mount point /var/tmp) collect2: error: ld returned 1 exit status
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f4c0389745bf470502ddefc8065d50e6a9033260 commit f4c0389745bf470502ddefc8065d50e6a9033260 Author: Alfredo Tupone <tupone@gentoo.org> AuthorDate: 2022-09-29 07:00:02 +0000 Commit: Alfredo Tupone <tupone@gentoo.org> CommitDate: 2022-09-29 07:00:02 +0000 dev-lang/ocaml: filtering lto Closes: https://bugs.gentoo.org/872995 Closes: https://bugs.gentoo.org/870349 Closes: https://bugs.gentoo.org/835157 Closes: https://bugs.gentoo.org/858446 Signed-off-by: Alfredo Tupone <tupone@gentoo.org> dev-lang/ocaml/{ocaml-4.14.0.ebuild => ocaml-4.14.0-r1.ebuild} | 1 + 1 file changed, 1 insertion(+)
