dev-libs/mimalloc: add 3.1.5

Closes: https://bugs.gentoo.org/957471
Signed-off-by: Michal Rostecki <vadorovsky@disroot.org>
Part-of: https://github.com/gentoo/gentoo/pull/42830
Closes: https://github.com/gentoo/gentoo/pull/42830
Signed-off-by: Sam James <sam@gentoo.org>

dev-libs/mimalloc/Manifest

@@ -1 +1,2 @@
 DIST mimalloc-2.1.9.tar.gz 1276218 BLAKE2B 183749c1bb98c92986da9d3cb636d465927dd5b4186072edbe6e4fae88b59fdbfe4a0dd711c4705d64287c8085a0059d891c07f6aba50747eb67e56937d2e3ad SHA512 404a7827aea6f39bb4b9d43b5c93d5ca39e84e29bf362d597744703f7a6d0c091f55b45a070e6d61ad7f68bf7c28f541668c75db16bae1423bd318f47bf06974
+DIST mimalloc-3.1.5.tar.gz 1306337 BLAKE2B 14b2196cdc90915a0d444f0411eb5bf7a90342b03ef3c3cd1fb3b0b307499d8b3bfb991db32f6a97fa357f92f3659d34fe63dbea10f50e539223286988b5f373 SHA512 616351e549707318c1f8b164251141684a73d5bf8205b905736f48ab21fbb19bfaa4d52c4e63642fcb144345b6a5331944b6c8e0827925000553e46f2c2c31e9

dev-libs/mimalloc/mimalloc-3.1.5.ebuild

@@ -0,0 +1,35 @@
+# Copyright 2022-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake-multilib
+
+DESCRIPTION="A compact general purpose allocator with excellent performance"
+HOMEPAGE="https://github.com/microsoft/mimalloc"
+SRC_URI="https://github.com/microsoft/mimalloc/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0/2"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~m68k ~ppc ~ppc64 ~riscv ~sparc ~x86"
+IUSE="debug hardened test valgrind"
+RESTRICT="!test? ( test )"
+
+DEPEND="valgrind? ( dev-debug/valgrind )"
+
+src_configure() {
+	local mycmakeargs=(
+		-DMI_DEBUG_FULL=$(usex debug)
+		-DMI_SECURE=$(usex hardened)
+		-DMI_INSTALL_TOPLEVEL=ON
+		-DMI_BUILD_TESTS=$(usex test)
+		-DMI_BUILD_OBJECT=OFF
+		-DMI_BUILD_STATIC=OFF
+		-DMI_TRACK_VALGRIND=$(usex valgrind)
+		-DMI_LIBC_MUSL=$(usex elibc_musl)
+		# Don't inject -march=XXX
+		-DMI_OPT_ARCH=OFF
+	)
+
+	cmake-multilib_src_configure
+}