dev-lang/swig: add 4.3.1

Closes: https://bugs.gentoo.org/953964
Signed-off-by: Sam James <sam@gentoo.org>

dev-lang/swig/Manifest

@@ -2,3 +2,4 @@ DIST swig-4.1.1.tar.gz 8600805 BLAKE2B 898d3405f20c3e49626fb808b568e77c69b81ec24
 DIST swig-4.2.0.tar.gz 8339586 BLAKE2B 4f1c3c7d4b1e218b67a2d796d2171df73971036a433e5fb80233b3050f022d578efdff28fc44d98a6d176ec6270b4942f5f56e9a74bbd8b30d6836c76c620a04 SHA512 b7f508b25bc6e882ed6123f6c7ad12b02a7b74de09ac6e5789968e9c2f51407d1e3dafd5ea495087b4fb0f447ecce17e6070471479c67c4265166d8342a10862
 DIST swig-4.2.1.tar.gz 8364050 BLAKE2B 0acffd4794d09f2347d669d1460a794c03f136ab3ddc6623741e182ff52b6bf5f639c736e38540918ebb1abbe36c2ce1957aef8a429f1a716d9c5361175569bf SHA512 019dee5a46d57e1030eef47cd5d007ccaadbdcd4e53cd30d7c795f0118ecf4406a78185534502c81c5f6d7bac0713256e7e19b20b5a2d14e2c552219edbaf5cf
 DIST swig-4.3.0.tar.gz 8616205 BLAKE2B ff9c9b9c139ebde89c46abd4b46903dc6c33aff969ed3bf873d7982ed9ad53793e2648460eb52e606e6295984698239118b10cef5d66333b1c3588286367d4d8 SHA512 5dfb8aa9898fccb063dbdf5d6266928cf46d671491308d2c122c59414377f1558015a37d7268729f62c5d4ee20438c98c83ee575fb00078dfe77564ee46a2f64
+DIST swig-4.3.1.tar.gz 8620774 BLAKE2B cd47eb3f9bf7c7e2f1583a58c4416275720b55754abd05c61636e68ac36e6b5899b293e55cf680071257017b53b95e7a2fd8983ca4effc7e98bb7af4dac5e026 SHA512 8958f7bc3345549a9bc4e00aa8d40a99f6c4bb92b95d627c8796cf8f8d1ba0041a89cab542f171778c2b26aa2a877767181ae9bd2c05fd055f373a32a463399c

dev-lang/swig/swig-4.3.1.ebuild

@@ -0,0 +1,64 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit toolchain-funcs
+
+DESCRIPTION="Simplified Wrapper and Interface Generator"
+HOMEPAGE="http://www.swig.org/ https://github.com/swig/swig"
+SRC_URI="https://downloads.sourceforge.net/${PN}/${P}.tar.gz"
+
+LICENSE="GPL-3+ BSD BSD-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+IUSE="ccache doc pcre test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	pcre? ( dev-libs/libpcre2 )
+	ccache? ( sys-libs/zlib )
+"
+DEPEND="
+	${RDEPEND}
+	test? ( dev-libs/boost )
+"
+BDEPEND="virtual/pkgconfig"
+
+DOCS=( ANNOUNCE CHANGES CHANGES.current README TODO )
+
+src_configure() {
+	# TODO: add USE for various langs? (https://bugs.gentoo.org/921504#c3)
+	econf \
+		PKGCONFIG="$(tc-getPKG_CONFIG)" \
+		--without-maximum-compile-warnings \
+		$(use_enable ccache) \
+		$(use_with pcre)
+}
+
+src_compile() {
+	# Override these variables per Makefile.in to get verbose logs
+	emake FLAGS="-k" RUNPIPE=""
+}
+
+src_test() {
+	# The tests won't get run w/o an explicit call, broken Makefiles?
+	# java skipped for bug #921504
+	# *-sections for bug #935318
+	emake check \
+		skip-java=true \
+		FLAGS="-k" \
+		RUNPIPE="" \
+		CFLAGS="${CFLAGS} -std=c++20 -ffunction-sections -fdata-sections" \
+		CXXFLAGS="${CXXFLAGS} -std=c++20 -ffunction-sections -fdata-sections" \
+		LDFLAGS="${LDFLAGS}"
+}
+
+src_install() {
+	default
+
+	if use doc; then
+		docinto html
+		dodoc -r Doc/{Devel,Manual}
+	fi
+}