media-libs/lcms: add 2.18

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

media-libs/lcms/Manifest

@@ -1 +1,2 @@
 DIST lcms2-2.17.tar.gz 5245319 BLAKE2B 746b0bdff61cbb12f4b27b42a17136a64fd6c437a9f6e620e0a27ba24ebeac595635c3e79929ae4f425b98fba7df1ce1e4a05ebd8bc2e03d23c99cf246fb46e0 SHA512 81885c70fb26a9b7d37a398f43ccb0d1d3ab8f43de7da8f760b26d053a0d7e0543e7d3b0cdcaf9b3b681a1b88f032134c5a3c1a6774a9abc66a8a3f10ba64398
+DIST lcms2-2.18.tar.gz 5599928 BLAKE2B 16096647d5b6e91c7785159f841a90c94887497bd21117b539d7c5eac6a5f495efbc2cc06afc9a0cebb6af6d18e8ce7fafd346efad126f15110e663e2dc2d6ab SHA512 a738459c8a14dee633d98d893c23c7e97a6ffe317dcc8fa4fb5daa1ece305de431464ef8b762169f7a1ce16399c29f39d46c9da742cf843cfb15050c4820aa71

media-libs/lcms/lcms-2.18.ebuild

@@ -0,0 +1,49 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit meson-multilib
+
+DESCRIPTION="A lightweight, speed optimized color management engine"
+HOMEPAGE="https://www.littlecms.com/"
+SRC_URI="https://github.com/mm2/Little-CMS/releases/download/lcms${PV/_}/${PN}2-${PV/_}.tar.gz"
+S="${WORKDIR}/lcms2-${PV/_}"
+
+# GPL-3 for the threaded & fastfloat plugins, see meson_options.txt
+LICENSE="GPL-3 MIT"
+SLOT="2"
+if [[ ${PV} != *_rc* ]] ; then
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~arm64-macos ~x64-macos ~x64-solaris"
+fi
+IUSE="doc jpeg static-libs test tiff"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	jpeg? ( media-libs/libjpeg-turbo:=[${MULTILIB_USEDEP}] )
+	tiff? ( >=media-libs/tiff-4.0.3-r6:=[${MULTILIB_USEDEP}] )
+"
+DEPEND="${RDEPEND}"
+
+multilib_src_configure() {
+	local emesonargs=(
+		-Ddefault_library=$(multilib_native_usex static-libs both shared)
+		-Dthreaded=true
+		-Dfastfloat=true
+		$(meson_feature jpeg)
+		$(meson_feature test tests)
+		$(meson_feature tiff)
+		$(meson_native_true utils)
+	)
+
+	meson_src_configure
+}
+
+multilib_src_test() {
+	# fast_float_testbed on hppa -> 1458s from default timeout of 600, #913067
+	meson_src_test --timeout-multiplier=3
+}
+
+multilib_src_install_all() {
+	use doc && dodoc doc/*.pdf
+}