--- /dev/null
+Index: gchemutils/configure.ac
+===================================================================
+--- gchemutils/configure.ac (revision 2072)
++++ gchemutils/configure.ac (revision 2073)
+@@ -352,7 +352,7 @@
+ libspreadsheet=libspreadsheet-1.12
+ fi
+
+-PKG_CHECK_MODULES(gnumeric, [$libspreadsheet >= 1.11.6], [build_gnumeric_plugin=yes],
++PKG_CHECK_MODULES(gnumeric, [$libspreadsheet >= 1.12.42], [build_gnumeric_plugin=yes],
+ [build_gnumeric_plugin=no])
+ dnl --without is not handled
+
+Index: gchemutils/gnumeric/functions.cc
+===================================================================
+--- gchemutils/gnumeric/functions.cc (revision 2072)
++++ gchemutils/gnumeric/functions.cc (revision 2073)
+@@ -195,23 +195,23 @@
+ const GnmFuncDescriptor Chemistry_functions[] = {
+
+ { N_("molarmass"), "s",
+- help_molarmass, gnumeric_molarmass, NULL, NULL, NULL,
++ help_molarmass, gnumeric_molarmass, NULL,
+ GNM_FUNC_SIMPLE, GNM_FUNC_IMPL_STATUS_COMPLETE, GNM_FUNC_TEST_STATUS_NO_TESTSUITE},
+ { N_("monoisotopicmass"), "s",
+- help_monoisotopicmass, gnumeric_monoisotopicmass, NULL, NULL, NULL,
++ help_monoisotopicmass, gnumeric_monoisotopicmass, NULL,
+ GNM_FUNC_SIMPLE, GNM_FUNC_IMPL_STATUS_COMPLETE, GNM_FUNC_TEST_STATUS_NO_TESTSUITE},
+ { N_("chemcomposition"), "ss",
+- help_chemcomposition, gnumeric_chemcomposition, NULL, NULL, NULL,
++ help_chemcomposition, gnumeric_chemcomposition, NULL,
+ GNM_FUNC_SIMPLE, GNM_FUNC_IMPL_STATUS_COMPLETE, GNM_FUNC_TEST_STATUS_NO_TESTSUITE},
+ { N_("elementnumber"), "s",
+- help_elementnumber, gnumeric_elementnumber, NULL, NULL, NULL,
++ help_elementnumber, gnumeric_elementnumber, NULL,
+ GNM_FUNC_SIMPLE, GNM_FUNC_IMPL_STATUS_COMPLETE, GNM_FUNC_TEST_STATUS_NO_TESTSUITE},
+ { N_("elementsymbol"), "f",
+- help_elementsymbol, gnumeric_elementsymbol, NULL, NULL, NULL,
++ help_elementsymbol, gnumeric_elementsymbol, NULL,
+ GNM_FUNC_SIMPLE, GNM_FUNC_IMPL_STATUS_COMPLETE, GNM_FUNC_TEST_STATUS_NO_TESTSUITE},
+
+
+- {NULL, NULL, NULL, NULL, NULL, NULL, NULL,
++ {NULL, NULL, NULL, NULL, NULL,
+ GNM_FUNC_IS_PLACEHOLDER, GNM_FUNC_IMPL_STATUS_UNIMPLEMENTED, GNM_FUNC_TEST_STATUS_NO_TESTSUITE}
+ };
+
--- /dev/null
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+inherit autotools xdg
+
+DESCRIPTION="Programs and library containing GTK widgets and C++ classes related to chemistry"
+HOMEPAGE="http://gchemutils.nongnu.org/"
+SRC_URI="http://download.savannah.gnu.org/releases/gchemutils/$(ver_cut 1-2)/${P}.tar.xz"
+
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+LICENSE="GPL-3"
+IUSE="gnumeric"
+
+RDEPEND="
+ >=app-text/gnome-doc-utils-0.3.2
+ >=dev-libs/glib-2.36.0:2
+ >=dev-libs/libxml2-2.4.16:2
+ >=gnome-extra/libgsf-1.14.9
+ >=sci-chemistry/bodr-5
+ >=sci-chemistry/chemical-mime-data-0.1.94
+ >=sci-chemistry/openbabel-2.3.0:0
+ >=x11-libs/cairo-1.6.0
+ >=x11-libs/gdk-pixbuf-2.22.0
+ >=x11-libs/goffice-0.10.12
+ x11-libs/gtk+:3
+ >=x11-libs/libX11-1.0.0
+ gnumeric? ( >=app-office/gnumeric-1.12.42 )
+"
+DEPEND="${RDEPEND}"
+BDEPEND="
+ virtual/pkgconfig
+ app-doc/doxygen
+"
+
+src_prepare() {
+ xdg_src_prepare
+
+ # From Debian
+ eapply "${FILESDIR}/${P}-gnumeric.patch"
+ eautoreconf
+}
+
+src_configure() {
+ # lasem is not in the tree
+ econf \
+ --without-lasem \
+ --disable-mozilla-plugin \
+ --disable-scrollkeeper \
+ --disable-update-databases
+}
+
+src_install() {
+ default
+
+ mv "${ED}"/usr/share/appdata "${ED}"/usr/share/metainfo || die
+ rm -rf "${ED}"/usr/share/mimelnk/ || die
+
+ find "${D}" -name '*.la' -type f -delete || die
+}