3 files changed, 94 insertions, 0 deletions
diff --git a/sci-mathematics/eprover/Manifest b/sci-mathematics/eprover/Manifest
new file mode 100644
index 000000000000..900895cc225b
--- /dev/null
+++ b/sci-mathematics/eprover/Manifest
@@ -0,0 +1 @@
+DIST eprover-3.0_pre008.tar.gz 1512310 BLAKE2B 88533bd05b823155639df49d631f4fb339019f624ea6cb1c3c7c46f1db331183dac4285c70a7efa372cbf3f0e839ec41b7589b93e4599a6ed94f42734f361985 SHA512 81f1a1dfd77b685805c80f95b683489d8759acbb5b45ebaf123f1b0f7cb82f9e2d58731975e5286afa9a8bf9d2874cc5362edc0c0da92aea39830ac4b8b1c4ec
diff --git a/sci-mathematics/eprover/eprover-3.0_pre008.ebuild b/sci-mathematics/eprover/eprover-3.0_pre008.ebuild
new file mode 100644
index 000000000000..0a693b56b539
--- /dev/null
+++ b/sci-mathematics/eprover/eprover-3.0_pre008.ebuild
@@ -0,0 +1,62 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit toolchain-funcs
+
+DESCRIPTION="Automated theorem prover for full first-order logic with equality"
+HOMEPAGE="https://www.eprover.org/
+	https://github.com/eprover/eprover/"
+SRC_URI="https://github.com/eprover/${PN}/archive/E-${PV/_/}.tar.gz
+	-> ${P}.tar.gz"
+S="${WORKDIR}"/${PN}-E-${PV/_/}
+
+LICENSE="GPL-2+"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="+ho"
+
+BDEPEND="sys-apps/help2man"
+
+src_prepare() {
+	default
+
+	sed -e "/^OPTFLAGS/s|= .*|= ${CFLAGS}|"         \
+		-e "/^LD/s|= .*|= $(tc-getCC) ${LDFLAGS}|"  \
+		-e "/^   AR/s|ar|$(tc-getAR)|"              \
+		-e "/^   CC/s|gcc|$(tc-getCC)|"             \
+		-i "${S}"/Makefile.vars || die
+}
+
+src_configure() {
+	local -a myconf=(
+		$(usex ho '--enable-ho' '')
+		--bindir=/usr/bin
+		--exec-prefix=/usr
+		--man-prefix=/usr/share/man/man1
+	)
+	sh ./configure ${myconf[@]} || die
+}
+
+src_compile() {
+	default
+
+	if use ho ; then
+		ln -s "${S}"/PROVER/${PN}-ho "${S}"/PROVER/${PN} || die
+	fi
+
+	emake man
+}
+
+src_install() {
+	# Picosat (CONTRIB package) is available as separate package.
+	rm -r "${S}"/CONTRIB || die
+
+	emake EXECPATH="${ED}"/usr/bin MANPATH="${ED}"/usr/share/man/man1 install
+	dodoc -r DOC EXAMPLE_PROBLEMS
+
+	if use ho ; then
+		dosym -r /usr/bin/${PN}-ho /usr/bin/${PN}
+	fi
+}
diff --git a/sci-mathematics/eprover/metadata.xml b/sci-mathematics/eprover/metadata.xml
new file mode 100644
index 000000000000..9a9970613884
--- /dev/null
+++ b/sci-mathematics/eprover/metadata.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+
+<pkgmetadata>
+  <maintainer type="project">
+    <email>sci-mathematics@gentoo.org</email>
+    <name>Gentoo Mathematics Project</name>
+  </maintainer>
+  <longdescription>
+    E is a theorem prover for full first-order logic with equality. It accepts
+    a problem specification, typically consisting of a number of first-order
+    clauses or formulas, and a conjecture, again either in clausal or full
+    first-order form. The system will then try to find a formal proof for the
+    conjecture, assuming the axioms. If a proof is found, the system can
+    provide a detailed list of proof steps that can be individually verified.
+    If the conjecture is existential (i.e. it is of the form "there exists an X
+    with property P"), more recent versions can also provide possible answers
+    (values for X). Development of E started as part of the E-SETHEO project at
+    TUM. The first public release was in in 1998, and the system has been
+    continuously improved ever since. I believe that E now is one of the most
+    powerful and friendly reasoning systems for first-order logic. The prover
+    has successfully participated in many competitions.
+  </longdescription>
+  <use>
+    <flag name="ho">enable support for higher-order logic</flag>
+  </use>
+  <upstream>
+    <bugs-to>https://github.com/eprover/eprover/issues/</bugs-to>
+    <remote-id type="github">eprover/eprover</remote-id>
+  </upstream>
+</pkgmetadata>