commit: 0de10539d62af83b0f319aa62a8fac2f9b439387 Author: Peter Levine <plevine457 <AT> gmail <DOT> com> AuthorDate: Sat Mar 31 05:19:48 2018 +0000 Commit: Andreas Sturmlechner <asturm <AT> gentoo <DOT> org> CommitDate: Wed Apr 4 21:09:32 2018 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=0de10539
dev-libs/libatomic_ops: Fix building with GCC-7 Bug: https://bugs.gentoo.org/638222 Closes: https://github.com/gentoo/gentoo/pull/7729 Package-Manager: Portage-2.3.16, Repoman-2.3.6 Closes: https://github.com/gentoo/gentoo/pull/7729 .../files/libatomic_ops-7.6.4-gcc7.patch | 40 ++++++++++++++++++++++ dev-libs/libatomic_ops/libatomic_ops-7.6.4.ebuild | 2 ++ 2 files changed, 42 insertions(+) diff --git a/dev-libs/libatomic_ops/files/libatomic_ops-7.6.4-gcc7.patch b/dev-libs/libatomic_ops/files/libatomic_ops-7.6.4-gcc7.patch new file mode 100644 index 00000000000..66cabfa5582 --- /dev/null +++ b/dev-libs/libatomic_ops/files/libatomic_ops-7.6.4-gcc7.patch @@ -0,0 +1,40 @@ +Upstream commit: https://github.com/ivmai/libatomic_ops/commit/759fa976432e4f09b4a436774fff7119da050042 + +From 759fa976432e4f09b4a436774fff7119da050042 Mon Sep 17 00:00:00 2001 +From: Ivan Maidanski <iv...@mail.ru> +Date: Thu, 29 Mar 2018 01:42:38 +0300 +Subject: [PATCH] Fix 'undefined reference to __atomic_load/store/cas_16' error + (gcc-7/x64) + +Issue #34 (libatomic_ops). + +* src/atomic_ops/sysdeps/gcc/x86.h [!AO_DISABLE_GCC_ATOMICS +&& !__APPLE_CC__ && !__clang__ && AO_GNUC_PREREQ(7, 0) +&& !AO_PREFER_BUILTIN_ATOMICS && !AO_THREAD_SANITIZER +&& !__MINGW32__] (AO_SKIPATOMIC_double_compare_and_swap_ANY, +AO_SKIPATOMIC_DOUBLE_LOAD_STORE_ANY): Define macro; add comment. +--- + src/atomic_ops/sysdeps/gcc/x86.h | 10 +++++++++- + 1 file changed, 9 insertions(+), 1 deletion(-) + +diff --git a/src/atomic_ops/sysdeps/gcc/x86.h b/src/atomic_ops/sysdeps/gcc/x86.h +index d7c06c5..b4ca39f 100644 +--- a/src/atomic_ops/sysdeps/gcc/x86.h ++++ b/src/atomic_ops/sysdeps/gcc/x86.h +@@ -67,7 +67,15 @@ + # define AO_SKIPATOMIC_DOUBLE_LOAD_STORE_ANY + # endif + # endif /* __x86_64__ */ +-# endif /* __clang__ */ ++ ++# elif AO_GNUC_PREREQ(7, 0) && !defined(AO_PREFER_BUILTIN_ATOMICS) \ ++ && !defined(AO_THREAD_SANITIZER) && !defined(__MINGW32__) ++ /* gcc-7.x/x64 (gcc-7.2, at least) requires -latomic flag in case */ ++ /* of double-word atomic operations use (but not in case of TSan). */ ++ /* TODO: Revise it for the future gcc-7 releases. */ ++# define AO_SKIPATOMIC_double_compare_and_swap_ANY ++# define AO_SKIPATOMIC_DOUBLE_LOAD_STORE_ANY ++# endif /* __GNUC__ && !__clang__ */ + + # ifdef AO_SKIPATOMIC_DOUBLE_LOAD_STORE_ANY + # define AO_SKIPATOMIC_double_load diff --git a/dev-libs/libatomic_ops/libatomic_ops-7.6.4.ebuild b/dev-libs/libatomic_ops/libatomic_ops-7.6.4.ebuild index 8a815291892..efae3090fbc 100644 --- a/dev-libs/libatomic_ops/libatomic_ops-7.6.4.ebuild +++ b/dev-libs/libatomic_ops/libatomic_ops-7.6.4.ebuild @@ -14,6 +14,8 @@ SLOT="0" KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sh ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris" IUSE="" +PATCHES=( "${FILESDIR}"/${P}-gcc7.patch ) + multilib_src_configure() { ECONF_SOURCE=${S} econf }
