dev-cpp/sol2: Fix compilation on GCC 15

- Tests pass
- Patch taken from upstream

Closes: https://bugs.gentoo.org/936924
Signed-off-by: Christopher Fore <csfore@posteo.net>
Closes: https://github.com/gentoo/gentoo/pull/37886
Signed-off-by: Sam James <sam@gentoo.org>

dev-cpp/sol2/files/sol2-3.3.1-fix-emplace.patch

@@ -0,0 +1,18 @@
+https://github.com/ThePhD/sol2/commit/d805d027e0a0a7222e936926139f06e23828ce9f
+
+From: =?UTF-8?q?=E2=80=9CPaulo?= <paulo@ubook.com>
+Date: Sat, 25 May 2024 01:52:59 -0300
+Subject: [PATCH] fix emplace
+
+--- a/include/sol/optional_implementation.hpp
++++ b/include/sol/optional_implementation.hpp
+@@ -2191,7 +2191,8 @@ namespace sol {
+ 			static_assert(std::is_constructible<T, Args&&...>::value, "T must be constructible with Args");
+ 
+ 			*this = nullopt;
+-			this->construct(std::forward<Args>(args)...);
++			new (static_cast<void*>(this)) optional(std::in_place, std::forward<Args>(args)...);
++			return **this;
+ 		}
+ 
+ 		/// Swaps this optional with the other.

dev-cpp/sol2/sol2-3.3.1-r1.ebuild

@@ -0,0 +1,68 @@
+# Copyright 2021-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+LUA_COMPAT=( lua5-{1,3,4} luajit )
+inherit cmake lua
+
+DESCRIPTION="Header-only C++ <-> Lua API wrapper"
+HOMEPAGE="https://github.com/ThePhD/sol2"
+SRC_URI="https://github.com/ThePhD/sol2/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"
+IUSE="test"
+REQUIRED_USE="${LUA_REQUIRED_USE}"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+	${LUA_DEPS}
+	test? (
+		>=dev-cpp/catch-3
+	)
+"
+BDEPEND="
+	virtual/pkgconfig
+"
+
+PATCHES=(
+	"${FILESDIR}"/sol2-3.3.0-werror.patch
+	"${FILESDIR}"/sol2-3.2.2-luajit-pkgconf.patch
+	"${FILESDIR}"/sol2-3.3.0-catch-depend.patch
+	"${FILESDIR}"/sol2-3.3.0-cmake-dir.patch
+	"${FILESDIR}"/sol2-3.3.0-dont-install-tests.patch
+	"${FILESDIR}"/sol2-3.3.1-fix-emplace.patch
+)
+
+src_configure() {
+	sol2_configure_wrapper() {
+		local mycmakeargs=(
+			-DSOL2_BUILD_LUA=no
+			-DSOL2_TESTS=$(usex test)
+			-DSOL2_LUA_VERSION="${ELUA}"
+		)
+		cmake_src_configure
+	}
+	lua_foreach_impl sol2_configure_wrapper
+}
+
+src_compile() {
+	lua_foreach_impl cmake_src_compile
+}
+
+src_test() {
+	sol2_test_wrapper() {
+		if [[ ${ELUA} == luajit ]]; then
+			einfo "Skipping test due to https://github.com/ThePhD/sol2/issues/1221"
+		else
+			cmake_src_test
+		fi
+	}
+	lua_foreach_impl sol2_test_wrapper
+}
+
+src_install() {
+	lua_foreach_impl cmake_src_install
+}