sci-libs/libqalculate: add 5.6.0

- backports a patch from upstream that fixes a segfault discovered while
  running tests

Signed-off-by: Christopher Fore <csfore@posteo.net>
Part-of: https://github.com/gentoo/gentoo/pull/43042
Signed-off-by: Nowa Ammerlaan <nowa@gentoo.org>

sci-libs/libqalculate/Manifest

@@ -1,3 +1,4 @@
 DIST libqalculate-5.5.0.tar.gz 2209195 BLAKE2B 64781eeb1ad06bb25ac604fce10fb6a158e5f704ad311d52d0b3494ddf4f96d6240795b9f1d25aaf415b4e06f9916af12ca3db71d6b97c00f07fd0e31ebc6036 SHA512 c19dd210c03eb3a2966937dafade9f15e5289a04b5c498180b3bff37e202b6707e1942e02dd76fd4f461d5f80bd7ab7b99ba7802916b7ed6a25d1e59b16472e7
 DIST libqalculate-5.5.1.tar.gz 2212026 BLAKE2B dd10a0e2a5d6454c545465cafa21ab3d2d999b4671617ca98b95af4850f7275a9a53b59b923e0f34866cc6814298f82cdff714250df945ae3673a1e9e6d3c1b9 SHA512 97fca04ef8ccd9596a40f36095fd418ebcb9b98cd2c9f412b9bf8475454024b1d8942adc869b03f501656fa2d36a6dc2c8a2fc7e366325e8da382d6194346977
 DIST libqalculate-5.5.2.tar.gz 2211598 BLAKE2B b9f3dbbe01d95e5bcc358c6070f42a3ca27bbc9cb5e8d0de3e8150d29262f0d1f509287f3fdee8949eb7af9e5c56e625d31bf5bb94839018ee7c87742eb95b51 SHA512 5042e97a2f252ea2808681d1c14265f01d9e353262c7719bc664c6d9a6c4756dc287aa9828314e6ad236baa0b74d3914f7b4fec88c862b28cd9e880384ea10d6
+DIST libqalculate-5.6.0.tar.gz 2304322 BLAKE2B 4513a41b3385fb60613af353a2733318373ba069cdf2868ff1a46b372cd678ccf56dac105fba1b2bc7ef1c79d0616fb9b09f97320a8c1cc944762e293bedfe91 SHA512 6cf50ac453c133d98a183127c44017a3872b4987b0786232e5638eeb944fed70953cfa284454f88c5130249fec21888438a181c331092378bd637083809a0a45

sci-libs/libqalculate/files/libqalculate-5.6.0-fix-segfault.patch

@@ -0,0 +1,19 @@
+https://github.com/Qalculate/libqalculate/commit/b56d623ada9cdd2aeac73b66ab839c9cd5bdd239
+
+From b56d623ada9cdd2aeac73b66ab839c9cd5bdd239 Mon Sep 17 00:00:00 2001
+From: "Hanna K." <hanna.knutsson@protonmail.com>
+Date: Thu, 17 Jul 2025 15:54:15 +0200
+Subject: [PATCH] Fix segfault with text argument containing potential text
+ returning function, or variable containing text value (issue #813)
+
+--- a/libqalculate/Function.cc
++++ b/libqalculate/Function.cc
+@@ -1763,7 +1763,7 @@ void Argument::parse(MathStructure *mstruct, const string &str, const ParseOptio
+ 			if((mstruct->isVariable() && mstruct->variable()->isKnown() && ((KnownVariable*) mstruct->variable())->get().isSymbolic()) || (mstruct->isFunction() && (mstruct->function()->subtype() == SUBTYPE_USER_FUNCTION || mstruct->function()->subtype() == SUBTYPE_DATA_SET || mstruct->function()->id() == FUNCTION_ID_REGISTER || mstruct->function()->id() == FUNCTION_ID_STACK || mstruct->function()->id() == FUNCTION_ID_LOAD || mstruct->function()->id() == FUNCTION_ID_CHAR || mstruct->function()->id() == FUNCTION_ID_CONCATENATE || mstruct->function()->id() == FUNCTION_ID_COMPONENT || mstruct->function()->id() == FUNCTION_ID_BINARY_DECIMAL || mstruct->function()->id() == FUNCTION_ID_BIJECTIVE || mstruct->function()->id() == FUNCTION_ID_ROMAN || ((mstruct->function()->id() == FUNCTION_ID_BIN || mstruct->function()->id() == FUNCTION_ID_OCT || mstruct->function()->id() == FUNCTION_ID_DEC || mstruct->function()->id() == FUNCTION_ID_HEX || mstruct->function()->id() == FUNCTION_ID_BASE) && mstruct->size() > 0 && mstruct->last().isOne())))) {
+ 				EvaluationOptions eo;
+ 				eo.parse_options = po;
+-				MathStructure mtest(mstruct);
++				MathStructure mtest(*mstruct);
+ 				CALCULATOR->beginTemporaryStopMessages();
+ 				mtest.eval(eo);
+ 				CALCULATOR->endTemporaryStopMessages();

sci-libs/libqalculate/libqalculate-5.6.0.ebuild

@@ -0,0 +1,94 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# Bump with sci-calculators/qalculate-gtk and sci-calculators/qalculate-qt
+
+inherit autotools flag-o-matic toolchain-funcs
+
+MY_PV="${PV//b/}"
+
+DESCRIPTION="A modern multi-purpose calculator library"
+HOMEPAGE="https://qalculate.github.io/"
+SRC_URI="https://github.com/Qalculate/libqalculate/archive/v${MY_PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}"/"${PN}-${MY_PV}"
+
+LICENSE="GPL-2+"
+# SONAME changes pretty often on bumps. Check!
+SLOT="0/23.3"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~x86-linux"
+IUSE="curl icu gnuplot +hardened readline test"
+RESTRICT="!test? ( test )"
+
+DEPEND="dev-libs/gmp:=
+	dev-libs/libxml2:2=
+	dev-libs/mpfr:=
+	virtual/libiconv
+	curl? ( net-misc/curl )
+	icu? ( dev-libs/icu:= )
+	readline? ( sys-libs/readline:= )"
+RDEPEND="${DEPEND}
+	gnuplot? ( >=sci-visualization/gnuplot-3.7 )"
+BDEPEND="dev-util/intltool
+	sys-devel/gettext
+	virtual/pkgconfig"
+
+PATCHES=(
+	# Remove on next version (current: 5.6.0)
+	"${FILESDIR}"/libqalculate-5.6.0-fix-segfault.patch
+)
+
+src_prepare() {
+	default
+	cat >po/POTFILES.skip <<-EOF || die
+		# Required by make check
+		data/currencies.xml.in
+		data/datasets.xml.in
+		data/elements.xml.in
+		data/functions.xml.in
+		data/planets.xml.in
+		data/prefixes.xml.in
+		data/units.xml.in
+		data/variables.xml.in
+		src/defs2doc.cc
+	EOF
+
+	eautoreconf
+}
+
+src_configure() {
+	# Needed for po-defs/Makefile
+	export CXX_FOR_BUILD="$(tc-getBUILD_CXX)"
+	export CXXCPP_FOR_BUILD="$(tc-getBUILD_CXX) -E"
+
+	# bug #792027
+	tc-export CC
+
+	# bug #924939
+	use elibc_musl && append-ldflags -Wl,-z,stack-size=2097152
+
+	local myeconfargs=(
+		$(use_enable test tests)
+		$(use_enable test unittests)
+		$(use_with curl libcurl)
+		$(use_with gnuplot gnuplot-call)
+		$(use_enable !hardened insecure)
+		$(use_with icu)
+		$(use_with readline)
+	)
+
+	econf "${myeconfargs[@]}"
+}
+
+src_install() {
+	# docs/reference/Makefile.am -> referencedir=
+	emake \
+		DESTDIR="${D}" \
+		referencedir="${EPREFIX}/usr/share/doc/${PF}/html" \
+		install
+
+	einstalldocs
+
+	find "${ED}" -name '*.la' -delete || die
+}