dev-libs/libunistring: add 1.4.2

Closes: https://bugs.gentoo.org/971028
Signed-off-by: Sam James <sam@gentoo.org>

dev-libs/libunistring/Manifest

@@ -1,3 +1,4 @@
 DIST libunistring-0.9.10.tar.xz 2051320 BLAKE2B 25d162d9d510cc35ad4209acceb9b06bcc0553b8ce56e94f8df12c4df64d91abfc4a9e15b50b5c8d5b9672939305a394a7e83f1892258defb7ae5ac2ccf79dfb SHA512 01dcab6e05ea4c33572bf96cc0558bcffbfc0e62fc86410cef06c1597a0073d5750525fe2dee4fdb39c9bd704557fcbab864f9645958108a2e07950bc539fe54
 DIST libunistring-1.0.tar.xz 2367800 BLAKE2B 8208fe33d4ac2f015b0efb56b0c7dd87afc4bb1c6ca4eb3ded86d7e2101d7b7f68bfd8991af4b6dd408282ec73f134ee0b884e761ff6d52e8a1e398326aec420 SHA512 70d5ad82722844dbeacdfcb4d7593358e4a00a9222a98537add4b7f0bf4a2bb503dfb3cd627e52e2a5ca1d3da9e5daf38a6bd521197f92002e11e715fb1662d1
 DIST libunistring-1.3.tar.xz 2753448 BLAKE2B 213d24ea4ba5e960a030bd83fc1b6c9d9a5e33d63ade8874e2a15d1b7a0acbe4b2d03df18065f6c17f01bfed94f7e70ef474e713f5c5ad2375cf2438457b0379 SHA512 864d42b1d4ae4941fe5c8327d6726ab8e3a35d2d5f9d25ce4859a72ab2f549a7b68f58638cf8767d863f58161d1a4053495d185860964a942d6750e42facf931
+DIST libunistring-1.4.2.tar.xz 2786084 BLAKE2B a03c51d3b1295642f5933e1b129f1b3f81705ef10422a30e6786d36e5788334ee6fbff1d70b31e1a95a65a6869db35f7ce77f6a59555eadf1ee31ecf19d92ccd SHA512 0215f7f40f426227eca5174140654a3fa43ac1520eeb212c2ba08043470f905687b2703afdda12e9635359a6187643900136b6bb11b422bd7567d17ca71b555f

dev-libs/libunistring/files/libunistring-1.4.2-nodocs.patch

@@ -0,0 +1,11 @@
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -2373,7 +2373,7 @@ top_builddir = @top_builddir@
+ top_srcdir = @top_srcdir@
+ AUTOMAKE_OPTIONS = 1.5 gnu no-dependencies
+ ACLOCAL_AMFLAGS = -I m4 -I gnulib-m4
+-SUBDIRS = doc gnulib-local lib tests install-tests
++SUBDIRS = gnulib-local lib tests install-tests
+ 
+ # Allow users to use "gnulib-tool --update".
+ 

dev-libs/libunistring/libunistring-1.4.2.ebuild

@@ -0,0 +1,49 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit multilib-minimal libtool
+
+DESCRIPTION="Library for manipulating Unicode and C strings according to Unicode standard"
+HOMEPAGE="https://www.gnu.org/software/libunistring/"
+SRC_URI="mirror://gnu/${PN}/${P}.tar.xz"
+
+LICENSE="|| ( LGPL-3+ GPL-2+ ) || ( FDL-1.2 GPL-3+ )"
+# Check regularly even on "minor" bumps
+SLOT="0/5"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~arm64-macos ~x64-macos ~x64-solaris"
+IUSE="doc static-libs"
+
+QA_CONFIG_IMPL_DECL_SKIP=(
+	# bug #900374
+	unreachable
+	MIN
+	static_assert
+	alignof
+)
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-1.4.2-nodocs.patch
+)
+
+src_prepare() {
+	default
+	elibtoolize # for Solaris shared libraries
+}
+
+multilib_src_configure() {
+	ECONF_SOURCE="${S}" econf $(use_enable static-libs static)
+}
+
+multilib_src_install_all() {
+	default
+
+	if use doc ; then
+		docinto html
+		dodoc doc/*.html
+		doinfo doc/*.info
+	fi
+
+	find "${ED}" -name '*.la' -delete || die
+}