sci-libs/htslib: bring back 1.21 for pysam

Signed-off-by: David Seifert <soap@gentoo.org>

sci-libs/htslib/Manifest

@@ -1,3 +1,4 @@
 DIST htslib-1.20.tar.bz2 4779028 BLAKE2B def7a135f37a4c7a167ada554b92b0e0107ab3dcbdab69abdea387035159f40fb183477275c137b0d786fdfc7264303898f98c54acb1714f9b7cb21e22612143 SHA512 a156f5c895fdae77f976f463a2d4d1111dc056893ef45b7e9cf62e9115898bc8cb47465bb1779e534c26943df478892385d44646e97bd0fa67fceb83ef7a649b
+DIST htslib-1.21.tar.bz2 4781943 BLAKE2B 7bbf62021a48503922a459ee18280d1e4af03247f31ef7de204f26a9f5526e8f49253301d6546149985bec93ca262ab8668e73f6b4b6f3c84e70665a66cb59bb SHA512 4989d9fd3702893d2b275e6de593a2109a0ebd10c0329ddca82cd3d53893a93197b9ca9f3756c480c88dc345e14527b1a540810089a480d839814e018a736bee
 DIST htslib-1.22.1.tar.bz2 4840271 BLAKE2B 6d4f5726f23a0d0c4c8b34055ec22610e3ffb647449cb0066487866a6c5f50282ee4cf9c3681e57fab58f712dd13f16094a3b10f35c32c9919a200fe036c1f3e SHA512 f4d67ad6b32df270f25c9dcdab334c9a0fde4cc266bb2c45191728ee10a648c70589666943c9d7a7cc647406b540c84de9f3eb3c11c8f16d416f25f3387cd147
 DIST htslib-1.22.tar.bz2 4830206 BLAKE2B d37cad1d2c1d764fb98af7aae6f3b40c6e0458b1a89d3430dc28e9084497f949d7eca632fda45ef12655488fbeffefdce6975b3dced935703981acc4f0a902e7 SHA512 6721a398c285cdb14d879c00f13da425c1d84f75e8a3a5fb04db4f3f875b60122317651d54634c62f302b397026c98c2b4e190c1ae3ebcc2f0ecde8307223375

sci-libs/htslib/htslib-1.21.ebuild

@@ -0,0 +1,52 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit toolchain-funcs
+
+DESCRIPTION="C library for high-throughput sequencing data formats"
+HOMEPAGE="http://www.htslib.org/"
+SRC_URI="https://github.com/samtools/${PN}/releases/download/${PV}/${P}.tar.bz2"
+
+LICENSE="MIT"
+SLOT="0/3"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="+bzip2 curl +lzma"
+
+RDEPEND="
+	virtual/zlib:=
+	bzip2? ( app-arch/bzip2 )
+	curl? ( net-misc/curl )
+	lzma? ( app-arch/xz-utils )"
+DEPEND="${RDEPEND}"
+
+src_prepare() {
+	default
+
+	# upstream injects LDFLAGS into the .pc file,
+	# which is a big nono for QA
+	sed -e '/^\(static_l\|Libs.private\|Requires.private\)/d' \
+		-i htslib.pc.in || die
+}
+
+src_configure() {
+	econf \
+		--disable-gcs \
+		--disable-plugins \
+		--disable-s3 \
+		$(use_enable bzip2 bz2) \
+		$(use_enable curl libcurl) \
+		$(use_enable lzma)
+}
+
+src_compile() {
+	emake AR="$(tc-getAR)"
+}
+
+src_install() {
+	default
+
+	# doesn't use libtool, can't disable static libraries
+	find "${ED}" -name '*.a' -delete || die
+}