kde-apps/cantor: Fix DEPENDs, add USE=julia, pkg_postinst -> pkg_pretend

Better warn before the emerge than afterwards.
Add two runtime backends to pkg_pretend message.

Gentoo-bug: 598926

Package-Manager: portage-2.3.0

3 files changed, 47 insertions, 34 deletions

diff --git a/kde-apps/cantor/cantor-16.12.49.9999.ebuild b/kde-apps/cantor/cantor-16.12.49.9999.ebuild
index ed84d7b2b2..022066a4f1 100644
--- a/kde-apps/cantor/cantor-16.12.49.9999.ebuild
+++ b/kde-apps/cantor/cantor-16.12.49.9999.ebuild
@@ -13,7 +13,7 @@ inherit kde5 python-r1
 DESCRIPTION="Interface for doing mathematics and scientific computing"
 HOMEPAGE="https://www.kde.org/applications/education/cantor https://edu.kde.org/cantor"
 KEYWORDS=""
-IUSE="analitza lua postscript python qalculate +R"
+IUSE="analitza julia lua postscript python qalculate +R"
 
 REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
 
@@ -26,8 +26,8 @@ RDEPEND="
 	$(add_frameworks_dep kconfigwidgets)
 	$(add_frameworks_dep kcoreaddons)
 	$(add_frameworks_dep kcrash)
-	$(add_frameworks_dep kdelibs4support)
 	$(add_frameworks_dep ki18n)
+	$(add_frameworks_dep kiconthemes)
 	$(add_frameworks_dep kio)
 	$(add_frameworks_dep knewstuff)
 	$(add_frameworks_dep kparts)
@@ -36,11 +36,13 @@ RDEPEND="
 	$(add_frameworks_dep kwidgetsaddons)
 	$(add_frameworks_dep kxmlgui)
 	$(add_qt_dep qtgui)
+	$(add_qt_dep qtprintsupport)
 	$(add_qt_dep qtsvg)
 	$(add_qt_dep qtwidgets)
 	$(add_qt_dep qtxml)
 	$(add_qt_dep qtxmlpatterns)
 	analitza? ( $(add_kdeapps_dep analitza) )
+	julia? ( dev-lang/julia )
 	lua? ( dev-lang/luajit:2 )
 	qalculate? (
 		sci-libs/cln
@@ -51,10 +53,26 @@ RDEPEND="
 	R? ( dev-lang/R )
 "
 DEPEND="${RDEPEND}
-	>=dev-cpp/eigen-2.0.3:2
+	dev-cpp/eigen:2
 "
 
-RESTRICT="test"
+RESTRICT+=" test"
+
+pkg_pretend() {
+	kde5_pkg_pretend
+
+	if ! has_version sci-mathematics/maxima && ! has_version sci-mathematics/octave && \
+		! use analitza && ! use julia && ! use lua && ! use python && ! use qalculate && ! use R; then
+		einfo
+		einfo "You have decided to build ${PN} with no backend."
+		einfo "To have this application functional, please enable one of the backends via USE flag:"
+		einfo "    analitza, julia, lua, python, qalculate, R"
+		einfo "Alternatively, install one of these:"
+		einfo "    # emerge sci-mathematics/maxima"
+		einfo "    # emerge sci-mathematics/octave"
+		einfo
+	fi
+}
 
 pkg_setup() {
 	use python && python_setup
@@ -72,6 +90,7 @@ src_prepare() {
 src_configure() {
 	local mycmakeargs=(
 		$(cmake-utils_use_find_package analitza Analitza5)
+		$(cmake-utils_use_find_package julia Julia)
 		$(cmake-utils_use_find_package lua LuaJIT)
 		$(cmake-utils_use_find_package postscript LibSpectre)
 		$(cmake-utils_use_find_package python PythonLibs)
@@ -80,16 +99,3 @@ src_configure() {
 	)
 	kde5_src_configure
 }
-
-pkg_postinst() {
-	kde5_pkg_postinst
-
-	if ! use analitza && ! use lua && ! use python && ! use qalculate && ! use R; then
-		echo
-		ewarn "You have decided to build ${PN} with no backend."
-		ewarn "To have this application functional, please do one of below:"
-		ewarn "    # emerge -va1 '='${CATEGORY}/${P} with 'analitza', 'lua', 'python', 'qalculate' or 'R' USE flag enabled"
-		ewarn "    # emerge -vaDu sci-mathematics/maxima"
-		echo
-	fi
-}
diff --git a/kde-apps/cantor/cantor-9999.ebuild b/kde-apps/cantor/cantor-9999.ebuild
index ed84d7b2b2..022066a4f1 100644
--- a/kde-apps/cantor/cantor-9999.ebuild
+++ b/kde-apps/cantor/cantor-9999.ebuild
@@ -13,7 +13,7 @@ inherit kde5 python-r1
 DESCRIPTION="Interface for doing mathematics and scientific computing"
 HOMEPAGE="https://www.kde.org/applications/education/cantor https://edu.kde.org/cantor"
 KEYWORDS=""
-IUSE="analitza lua postscript python qalculate +R"
+IUSE="analitza julia lua postscript python qalculate +R"
 
 REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
 
@@ -26,8 +26,8 @@ RDEPEND="
 	$(add_frameworks_dep kconfigwidgets)
 	$(add_frameworks_dep kcoreaddons)
 	$(add_frameworks_dep kcrash)
-	$(add_frameworks_dep kdelibs4support)
 	$(add_frameworks_dep ki18n)
+	$(add_frameworks_dep kiconthemes)
 	$(add_frameworks_dep kio)
 	$(add_frameworks_dep knewstuff)
 	$(add_frameworks_dep kparts)
@@ -36,11 +36,13 @@ RDEPEND="
 	$(add_frameworks_dep kwidgetsaddons)
 	$(add_frameworks_dep kxmlgui)
 	$(add_qt_dep qtgui)
+	$(add_qt_dep qtprintsupport)
 	$(add_qt_dep qtsvg)
 	$(add_qt_dep qtwidgets)
 	$(add_qt_dep qtxml)
 	$(add_qt_dep qtxmlpatterns)
 	analitza? ( $(add_kdeapps_dep analitza) )
+	julia? ( dev-lang/julia )
 	lua? ( dev-lang/luajit:2 )
 	qalculate? (
 		sci-libs/cln
@@ -51,10 +53,26 @@ RDEPEND="
 	R? ( dev-lang/R )
 "
 DEPEND="${RDEPEND}
-	>=dev-cpp/eigen-2.0.3:2
+	dev-cpp/eigen:2
 "
 
-RESTRICT="test"
+RESTRICT+=" test"
+
+pkg_pretend() {
+	kde5_pkg_pretend
+
+	if ! has_version sci-mathematics/maxima && ! has_version sci-mathematics/octave && \
+		! use analitza && ! use julia && ! use lua && ! use python && ! use qalculate && ! use R; then
+		einfo
+		einfo "You have decided to build ${PN} with no backend."
+		einfo "To have this application functional, please enable one of the backends via USE flag:"
+		einfo "    analitza, julia, lua, python, qalculate, R"
+		einfo "Alternatively, install one of these:"
+		einfo "    # emerge sci-mathematics/maxima"
+		einfo "    # emerge sci-mathematics/octave"
+		einfo
+	fi
+}
 
 pkg_setup() {
 	use python && python_setup
@@ -72,6 +90,7 @@ src_prepare() {
 src_configure() {
 	local mycmakeargs=(
 		$(cmake-utils_use_find_package analitza Analitza5)
+		$(cmake-utils_use_find_package julia Julia)
 		$(cmake-utils_use_find_package lua LuaJIT)
 		$(cmake-utils_use_find_package postscript LibSpectre)
 		$(cmake-utils_use_find_package python PythonLibs)
@@ -80,16 +99,3 @@ src_configure() {
 	)
 	kde5_src_configure
 }
-
-pkg_postinst() {
-	kde5_pkg_postinst
-
-	if ! use analitza && ! use lua && ! use python && ! use qalculate && ! use R; then
-		echo
-		ewarn "You have decided to build ${PN} with no backend."
-		ewarn "To have this application functional, please do one of below:"
-		ewarn "    # emerge -va1 '='${CATEGORY}/${P} with 'analitza', 'lua', 'python', 'qalculate' or 'R' USE flag enabled"
-		ewarn "    # emerge -vaDu sci-mathematics/maxima"
-		echo
-	fi
-}
diff --git a/kde-apps/cantor/metadata.xml b/kde-apps/cantor/metadata.xml
index 632627c24d..20e3a5914a 100644
--- a/kde-apps/cantor/metadata.xml
+++ b/kde-apps/cantor/metadata.xml
@@ -7,6 +7,7 @@
 	</maintainer>
 	<use>
 		<flag name="analitza">Enable <pkg>kde-apps/analitza</pkg> backend support</flag>
+		<flag name="julia">Enable <pkg>dev-lang/julia</pkg> backend support</flag>
 		<flag name="qalculate">Enable <pkg>sci-libs/libqalculate</pkg> backend support</flag>
 		<flag name="R">Enable <pkg>dev-lang/R</pkg> backend support</flag>
 	</use>