dev-libs/libsecp256k1: bump to 0.4.0

See: https://github.com/bitcoin-core/secp256k1/blob/v0.4.0/CHANGELOG.md#040---2023-09-04
Closes: https://bugs.gentoo.org/913629
Signed-off-by: Matt Whitlock <gentoo@mattwhitlock.name>
Closes: https://github.com/gentoo/gentoo/pull/32610
Signed-off-by: Sam James <sam@gentoo.org>

dev-libs/libsecp256k1/Manifest

@@ -1,5 +1,6 @@
 DIST libsecp256k1-0.3.0.tar.gz 2475682 BLAKE2B a531a87da63abc67a55e756852cde41cdc56d388963871beb23233623721f583ade4ce6b273ffa1c319a3875541e18c549512034d7b6a9eb926e8e916513d14d SHA512 77251b37990b0e73442aa1ec1ff51c5c7e293755ace9abc92ce6c3d21c7ed7f3b1666b939b4410bf1f637e3a69b16a7d33069caf071327f05177420a10f15eda
 DIST libsecp256k1-0.3.1.tar.gz 2560292 BLAKE2B 70ff57e222dd47d0e63a40653d4e7b4e727f6bcb5abf005f15c94cf70e7d11843281d7406d2640b06a0f6a2c2f79cc66ea544cca761d1587973d57006ca39daf SHA512 58ec679625ef4663c94c7198ee953283106c1e027623c3de341277fa757265b822ad3c0e98019f9e425f0e9e414b03e6b62853a1581611813cce753e81845d0f
 DIST libsecp256k1-0.3.2.tar.gz 2566680 BLAKE2B bf0a5ac1edbc115247148912822a2cefe798651f6c6a480422eee90eba96ebbfba772d561e321ac2bf7a0f8261f8ccd9f3af0e66e196f1e861aa550ee1303f27 SHA512 18104b72dd5d1f5e776d72c31c36247e450736437b453b59cf6ec86f84fedeafcf231e266c1ddad727befd9864c65a779000d01e6cef4b9a6485850afebc8a81
+DIST libsecp256k1-0.4.0.tar.gz 2607093 BLAKE2B abbd68580e5e35478d74cad13e0e55a175d2000a0a071dc0812655a47ee262572c1e6944d2d5c8f3dd2b798a72e90be7b64d76f7be25e85ba2471e03254a8fb0 SHA512 84cc115a74d39bc4173012f321ae13195ae92bb96f1dcdcb01fe8392fd5b2437addfa63a1654d07f70e67f0ea6e27978134196442b9ae25bc6f9159ee9ef6527
 DIST libsecp256k1-v0.1_pre20190401.tgz 166663 BLAKE2B 68c9fc3fda6af56452f32edeae5dcb5a92f68bc3fb39a397c532951c6392347df14ea0347bbe05cab43158512e0d9f5ea87bd8f69bece1b04440860ebb8065ee SHA512 8c4945e93cb5ff241482ba4426b25162a7ae3b26860edc10c91d06b1c396887202ad971f4d38e035828352531b87fc29087a12b675e43da44f23c9ea3b6c0cc8
 DIST libsecp256k1-v0.1_pre20201028.tgz 200051 BLAKE2B 90d636049b411e02703feb2661006900a55f952f60e76e2b7147a5afe8e391a06a80d6ae1489b1e7f2382176c7ea831526465a85bca09156dc6d37b417fcb33b SHA512 54a0fa21b64dd6836e4227de51f3539afe06e0e2f352683397d6adb5dd0508af443d2e25f91e90e1ae366b261965fe7d438292314705baee799cf37421644958

dev-libs/libsecp256k1/libsecp256k1-0.4.0.ebuild

@@ -0,0 +1,73 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools
+
+MyPN=secp256k1
+DESCRIPTION="Optimized C library for EC operations on curve secp256k1"
+HOMEPAGE="https://github.com/bitcoin-core/secp256k1"
+SRC_URI="https://github.com/bitcoin-core/secp256k1/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0/2"  # subslot is "$((_LIB_VERSION_CURRENT-_LIB_VERSION_AGE))" from configure.ac
+KEYWORDS="~amd64 ~arm ~arm64 ~mips ~ppc ~ppc64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="+asm +ecdh +ellswift experimental +extrakeys lowmem +recovery +schnorr test valgrind"
+RESTRICT="!test? ( test )"
+
+REQUIRED_USE="
+	asm? ( || ( amd64 arm ) arm? ( experimental ) )
+	schnorr? ( extrakeys )
+"
+BDEPEND="
+	sys-devel/autoconf-archive
+	virtual/pkgconfig
+	valgrind? ( dev-util/valgrind )
+"
+
+PATCHES=(
+	"${FILESDIR}/0.2.0-fix-cross-compile.patch"
+)
+
+S="${WORKDIR}/${MyPN}-${PV}"
+
+src_prepare() {
+	default
+	eautoreconf
+
+	# Generate during build
+	rm -f src/precomputed_ecmult.c src/precomputed_ecmult_gen.c || die
+}
+
+src_configure() {
+	local myeconfargs=(
+		--disable-benchmark
+		$(use_enable experimental)
+		$(use_enable test tests)
+		$(use_enable test exhaustive-tests)
+		$(use_enable {,module-}ecdh)
+		$(use_enable {,module-}ellswift)
+		$(use_enable {,module-}extrakeys)
+		$(use_enable {,module-}recovery)
+		$(use_enable schnorr module-schnorrsig)
+		$(usev lowmem '--with-ecmult-window=4 --with-ecmult-gen-precision=2')
+		$(use_with valgrind)
+	)
+	if use asm; then
+		if use arm; then
+			myeconfargs+=( --with-asm=arm32 )
+		else
+			myeconfargs+=( --with-asm=auto )
+		fi
+	else
+		myeconfargs+=( --with-asm=no )
+	fi
+
+	econf "${myeconfargs[@]}"
+}
+
+src_install() {
+	default
+	find "${ED}" -name '*.la' -delete || die
+}

dev-libs/libsecp256k1/metadata.xml

@@ -12,6 +12,7 @@
   <use>
     <flag name="asm">Enable x86_64 assembly optimisation</flag>
     <flag name="ecdh">Enable ECDH shared secret computation</flag>
+    <flag name="ellswift">Enable ElligatorSwift encoding for public keys</flag>
     <flag name="endomorphism">Enable endomorphism</flag>
     <flag name="experimental">Allow experimental USE flags</flag>
     <flag name="extrakeys">Enable extrakeys module</flag>