3 files changed, 69 insertions, 0 deletions
diff --git a/sci-mathematics/lcalc/Manifest b/sci-mathematics/lcalc/Manifest
new file mode 100644
index 000000000000..6ba64e4dd9ce
--- /dev/null
+++ b/sci-mathematics/lcalc/Manifest
@@ -0,0 +1 @@
+DIST lcalc-2.0.1.tar.xz 849260 BLAKE2B 141044939b50903f5aa631ee7ca76ed1ffc65fd0604701376b67172a8f70bcded2a9303ac3f653b20b8a05da44034f21f775dbe98f6efd38cd4097957f5f5466 SHA512 cf7210cd79dad416e3c4cdc08a6ed276d88483b8dfc425fe2ed4a1592b8a31f82ed5ec7cc7b6308ac80d44cf20e9a07484e2004bbfdeabbbabf843d24d15cc2a
diff --git a/sci-mathematics/lcalc/lcalc-2.0.1.ebuild b/sci-mathematics/lcalc/lcalc-2.0.1.ebuild
new file mode 100644
index 000000000000..31632d687e6c
--- /dev/null
+++ b/sci-mathematics/lcalc/lcalc-2.0.1.ebuild
@@ -0,0 +1,31 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DESCRIPTION="Command-line utility and library for L-function computations"
+HOMEPAGE="https://gitlab.com/sagemath/lcalc"
+SRC_URI="https://gitlab.com/sagemath/lcalc/uploads/01b46cdbbf3e67a322320dc0b2750d50/${P}.tar.xz"
+
+LICENSE="GPL-2+"
+# The subslot is the libLfunction soname major version
+SLOT="0/1"
+KEYWORDS="~amd64"
+
+# Omit USE=mpfr for now because it's broken upstream:
+#
+#   https://gitlab.com/sagemath/lcalc/-/issues/7
+#
+IUSE="+double double-double quad-double pari"
+REQUIRED_USE="^^ ( double double-double quad-double )"
+
+BDEPEND="dev-util/gengetopt"
+DEPEND="double-double? ( sci-libs/qd:= )
+	quad-double? ( sci-libs/qd:= )
+	pari? ( sci-mathematics/pari:= )"
+REPEND="${DEPEND}"
+
+src_configure() {
+	econf $(use_with pari) \
+		  --enable-precision="$(usev double)$(usev double-double)$(usev quad-double)"
+}
diff --git a/sci-mathematics/lcalc/metadata.xml b/sci-mathematics/lcalc/metadata.xml
new file mode 100644
index 000000000000..9a24558f38a7
--- /dev/null
+++ b/sci-mathematics/lcalc/metadata.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+  <maintainer type="person">
+    <email>mjo@gentoo.org</email>
+  </maintainer>
+
+  <maintainer type="person" proxied="yes">
+    <email>frp.bissey@gmail.com</email>
+    <name>François Bissey</name>
+  </maintainer>
+  <maintainer type="project" proxied="proxy">
+    <email>proxy-maint@gentoo.org</email>
+    <name>Proxy Maintainers</name>
+  </maintainer>
+
+  <upstream>
+    <remote-id type="gitlab">sagemath/lcalc</remote-id>
+  </upstream>
+  <use>
+    <flag name="double">Use double precision (the upstream default)</flag>
+    <flag name="double-double">
+      Use <pkg>sci-libs/qd</pkg>for double-double precision
+    </flag>
+    <!-- Broken upstream: https://gitlab.com/sagemath/lcalc/-/issues/7
+    <flag name="multiple-precision">
+      Use <pkg>dev-libs/mpfr</pkg>for multiple precision
+    </flag>
+    -->
+    <flag name="pari">
+      Use <pkg>sci-mathematics/pari</pkg> for elliptic curve L-functions
+    </flag>
+    <flag name="quad-double">
+      Use <pkg>sci-libs/qd</pkg>for quad-double precision
+    </flag>
+  </use>
+</pkgmetadata>