dev-libs/libatomic_ops: add 7.8.4

Signed-off-by: Sam James <sam@gentoo.org>

dev-libs/libatomic_ops/Manifest

@@ -1 +1,2 @@
 DIST libatomic_ops-7.8.2.tar.gz 524637 BLAKE2B 1faaedc52106b9d240085beb364a257de28ba5dba4141d2b6a7660a93c59ed7b4e1371ea4a8212b32a11805a15992c7b5ba4e748b2d194e8cc06fe20d91d5e14 SHA512 0559087c99b941990f189ea4ed5b3b371faf086bc1d517da6b878ba609c200eef24358768fd4361900101cdb474e28cea8408eb0b0222d23ef3154ce77f6acc0
+DIST libatomic_ops-7.8.4.tar.gz 526632 BLAKE2B d4afc64a68353a24356906df4cc8506bf3f295aafcd9067a9cda24cfaa02b8ae5343e50f93513d7d78ac55735b70709443293dea59e19b8ce7906bbea7434404 SHA512 5f77a520cecc31fe9baf4d3a61beac79dba317e7b149464a945db3389c4a94b45fdb52f105d838409b1cbd64b5c3ae0e29acf81df5606a6f49ee8a366673091a

dev-libs/libatomic_ops/libatomic_ops-7.8.4.ebuild

@@ -0,0 +1,31 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit libtool multilib-minimal
+
+DESCRIPTION="Implementation for atomic memory update operations"
+HOMEPAGE="https://github.com/bdwgc/libatomic_ops/"
+SRC_URI="https://github.com/bdwgc/libatomic_ops/releases/download/v${PV}/${P}.tar.gz"
+
+# See doc/LICENSING.txt
+LICENSE="MIT boehm-gc GPL-2+"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+
+src_prepare() {
+	default
+	# ensure LTO patches are applied
+	elibtoolize
+}
+
+multilib_src_configure() {
+	ECONF_SOURCE="${S}" econf --enable-shared
+}
+
+multilib_src_install() {
+	default
+
+	find "${ED}" -name '*.la' -delete || die
+}