dev-libs/c-blosc2: Bump to 2.21.1

Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-libs/c-blosc2/Manifest

@@ -1,3 +1,4 @@
 DIST c-blosc2-2.19.0.gh.tar.gz 3300743 BLAKE2B 44ef2150bf618c1bac1ff9000f6f12ae3e6310026a82eac6efb26bc96ef4e3c7ec40d59d18c75c4e801ede5acce14c71403b230ca436b4efa0db3550902bb490 SHA512 92a92f251666238e741970b1ec7a46213d0755543e29ee160a2b20ba0b36aade7cc8971e5df7ea1aefe62c32b765efbcd60b6b20d7f697f086f6004ed65bd2a1
 DIST c-blosc2-2.19.1.gh.tar.gz 3301977 BLAKE2B e57059d990d86e6cebaebf38931e6a6ad1c1d17339b5b4600484012011cd8bd4bf0f2b1a63a07d11b4080f23f45d354d656cf9b8c02d41b1ebfd7a1e2f532bfd SHA512 f57959e96a48598e00e327fdc7d4c692116870cdd57fb36b65d783ee8a6a451bff9580bb4e43a428bf17b8eed364a269b702ec610c8d0c3569d6c3af466a3ac3
 DIST c-blosc2-2.20.0.gh.tar.gz 3302408 BLAKE2B 33d71891265e31ffa1e1d7b55fb7934ad708343663a07acddf24e15b4f53e499c92c6a5673deb3a262cc31628d6d580381f825f1e8b562e68634b203699a557b SHA512 7c40a3b64d956a2141d482bfac65601a999e068262091c51525bde9e05a3667109c5f275688213af0caebbb439cb3004a76f45cb216a468e0793f20e04cc1ba3
+DIST c-blosc2-2.21.1.gh.tar.gz 3337949 BLAKE2B cdd690a082967a2e9bee40f5b75660993ee5f2283022ff3001db8d3c286fe22dfe0e3d9b576efed99ab39db426b54f8e9df397b23fdbad2b90ee68e47c6e235f SHA512 6dfcbb16bfd0da8b1eb5287b3ab06ee83c5d19955195c9dad855ae0de98af7b20202b83103d80fda2578bc7fdd32205f26cdc63e4660ddb9559c83b3c5b603ff

dev-libs/c-blosc2/c-blosc2-2.21.1.ebuild

@@ -0,0 +1,63 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="Blocking, shuffling and lossless compression library"
+HOMEPAGE="
+	https://www.blosc.org/c-blosc2/c-blosc2.html
+	https://github.com/Blosc/c-blosc2/
+"
+SRC_URI="
+	https://github.com/Blosc/c-blosc2/archive/v${PV}.tar.gz
+		-> ${P}.gh.tar.gz
+"
+
+LICENSE="BSD"
+SLOT="0/5"
+KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~loong ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux"
+IUSE="test +zlib +zstd"
+REQUIRED_USE="test? ( zlib zstd )"
+RESTRICT="!test? ( test )"
+
+DEPEND="
+	>=app-arch/lz4-1.7.5:=
+	zlib? ( sys-libs/zlib:= )
+	zstd? ( app-arch/zstd:= )
+"
+RDEPEND="
+	${DEPEND}
+"
+
+src_configure() {
+	# remove bundled libs (just in case)
+	rm -rf internal-complibs || die
+
+	local mycmakeargs=(
+		-DBUILD_STATIC=OFF
+		-DBUILD_TESTS=$(usex test)
+		-DBUILD_BENCHMARKS=OFF
+		-DBUILD_EXAMPLES=OFF
+		-DBUILD_FUZZERS=OFF
+		-DDEACTIVATE_ZLIB=$(usex !zlib)
+		-DDEACTIVATE_ZSTD=$(usex !zstd)
+		-DPREFER_EXTERNAL_LZ4=ON
+		-DPREFER_EXTERNAL_ZLIB=ON
+		-DPREFER_EXTERNAL_ZSTD=ON
+
+		# force regular zlib, at least for  the time being
+		-DCMAKE_DISABLE_FIND_PACKAGE_ZLIB_NG=ON
+
+		# upstream overrides CMAKE_C_FLAGS, preventing ${CFLAGS} defaults
+		# from applying, https://github.com/Blosc/c-blosc2/issues/433
+		-DCMAKE_C_FLAGS="${CFLAGS}"
+	)
+	cmake_src_configure
+}
+
+src_test() {
+	# Tests fail in parallel, https://github.com/Blosc/c-blosc2/issues/432
+	cmake_src_test -j1
+}