dev-cpp/nlohmann_json: add 3.10.0

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

dev-cpp/nlohmann_json/Manifest

@@ -1,2 +1,4 @@
+DIST nlohmann_json-3.10.0.tar.gz 7006504 BLAKE2B 2ccb2e50a46a8579b6a848f6fee35ad1ff11a1491157bdf5d343133f24d4468ddfabc4fe4e9909b47011d52b3604566d5d7e275f0731c8d91efd1e1b9c545ef2 SHA512 1531780110260ea4cd8fbe79d860f1ea46fa8377d520669f938ddb5f8a4b11fe550fc7d2d978a281d5ddcc511447d160a2f68c06583672496c57c6672a4036a1
 DIST nlohmann_json-3.9.1-testdata.tar.gz 112348454 BLAKE2B f0a47b41805bf1426f612e9a82efea2a3e5b1c15740c1c531d859e60dc5daeb85209b4fe363fd8fb84e3bbf01a2578c74538ba3e769726494047979f5a4d468d SHA512 d9af8419b837c592ec7519cd5772651c761078a9c43cf2a309cee55c323aee0df0c233fb58a07d5ee2e77492ac8b16398de234b387eae037a60e3c9ba5b08891
 DIST nlohmann_json-3.9.1.tar.gz 6882818 BLAKE2B 97276dc2345ac2070ac2d30d0a2e1953bb2f6ecde437eaed87dad46c108daa4b21c662a047e7d4e7c180179df9e7dfb71f545f3e42b2528201630d9093539090 SHA512 e0eb4727bea993af984f832e069d03a21219befae0f24ee49e67a1144cf1e8428dcf2e37f683aedb8d14118545d5087f2b7d822a576944cef3e590a12be51642
+DIST nlohmann_json-testdata-3.0.0.tar.gz 112348454 BLAKE2B f0a47b41805bf1426f612e9a82efea2a3e5b1c15740c1c531d859e60dc5daeb85209b4fe363fd8fb84e3bbf01a2578c74538ba3e769726494047979f5a4d468d SHA512 d9af8419b837c592ec7519cd5772651c761078a9c43cf2a309cee55c323aee0df0c233fb58a07d5ee2e77492ac8b16398de234b387eae037a60e3c9ba5b08891

dev-cpp/nlohmann_json/nlohmann_json-3.10.0.ebuild

@@ -0,0 +1,62 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake
+
+# Check https://github.com/nlohmann/json/blob/develop/cmake/download_test_data.cmake to find test archive version
+TEST_VERSION="3.0.0"
+DESCRIPTION="JSON for Modern C++"
+HOMEPAGE="https://github.com/nlohmann/json https://nlohmann.github.io/json/"
+SRC_URI="
+	https://github.com/nlohmann/json/archive/v${PV}.tar.gz -> ${P}.tar.gz
+	test? ( https://github.com/nlohmann/json_test_data/archive/v${TEST_VERSION}.tar.gz -> ${PN}-testdata-${TEST_VERSION}.tar.gz )"
+S="${WORKDIR}/json-${PV}"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~x86"
+IUSE="doc test"
+#RESTRICT="!test? ( test )"
+# Need to report failing tests upstream
+# Tests only just added, large test suite, majority pass
+RESTRICT="test"
+
+BDEPEND="doc? ( app-doc/doxygen )"
+
+DOCS=( ChangeLog.md README.md )
+
+src_configure() {
+	# Tests are built by default so we can't group the test logic below
+	local mycmakeargs=(
+		-DJSON_MultipleHeaders=ON
+		-DJSON_BuildTests=$(usex test)
+	)
+
+	# Define test data directory here to avoid unused var QA warning, bug #747826
+	use test && mycmakeargs+=( -DJSON_TestDataDirectory="${S}"/json_test_data )
+
+	cmake_src_configure
+}
+
+src_compile() {
+	cmake_src_compile
+
+	if use doc; then
+		emake -C doc
+		HTML_DOCS=( doc/html/. )
+	fi
+}
+
+src_test() {
+	cd "${BUILD_DIR}/test" || die
+
+	# Skip certain tests needing git per upstream
+	# https://github.com/nlohmann/json/issues/2189
+	local myctestargs=(
+		"-LE git_required"
+	)
+
+	cmake_src_test
+}