dev-libs/cJSON: Sync with Gentoo

It's from Gentoo commit 1c0b004f5d6d6f087348b55e8e86bfe18debd7bd.

sdk_container/src/third_party/portage-stable/dev-libs/cJSON/Manifest

@@ -1 +1,2 @@
 DIST cJSON-1.7.17.tar.gz 353748 BLAKE2B 11d47bebc4b6b3a8115234706f1b35af0f450725c2ee36aaf563a5d44e20a7bc0e2b83aaf15aeea3146bdad7467e96bf7d6edcd79ad4f3e5a9ffe40f002cf8d5 SHA512 4feebafa5225297fa3e6a7bf23f8d31b5c3e172f437078c5a07528522ad58ca2e9c72dd9e8611241d2b8321e9aa0a1a9af7743689d1c2001d1d9cb624aae6fa8
+DIST cJSON-1.7.18.tar.gz 354726 BLAKE2B 293c483ed39028a23a49994698be69de16274500298893711d5767c381f51802c52f4981e074b26fd9174c186f9874fdc1811f49272c1b90f8fb82a1a315db60 SHA512 2accb507c6b97222eb5f0232c015b356cf6d248d1247049928731aa8e897378245e62395c232b1ec57d28d1e53ac72c849be85e59c33616a382d40473649f66b

sdk_container/src/third_party/portage-stable/dev-libs/cJSON/cJSON-1.7.18.ebuild

@@ -0,0 +1,30 @@
+# Copyright 2021-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="Ultralightweight JSON parser in ANSI C"
+HOMEPAGE="https://github.com/DaveGamble/cJSON"
+SRC_URI="https://github.com/DaveGamble/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~loong ~mips ppc ppc64 ~riscv sparc x86"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+src_prepare() {
+	cmake_src_prepare
+
+	sed -i -e '/-Werror/d' CMakeLists.txt || die
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DENABLE_CJSON_TEST=$(usex test)
+	)
+
+	cmake_src_configure
+}