sci-mathematics/octave: add rapidjson USE flag

Signed-off-by: Sam James <sam@gentoo.org>

sci-mathematics/octave/metadata.xml

@@ -10,6 +10,7 @@
 	</longdescription>
 	<use>
 		<flag name="glpk">Add support for <pkg>sci-mathematics/glpk</pkg> for linear programming</flag>
+		<flag name="json">Allow using jsonencode and jsondecode commands via <pkg>dev-libs/rapidjson</pkg></flag>
 		<flag name="qhull">Add support for <pkg>media-libs/qhull</pkg>, to allow `delaunay', `convhull', and related functions</flag>
 		<flag name="qrupdate">Add support for <pkg>sci-libs/qrupdate</pkg>for QR and Cholesky update functions</flag>
 		<flag name="sparse">Add enhanced support for sparse matrix algebra with SuiteSparse</flag>

sci-mathematics/octave/octave-7.1.0.ebuild

@@ -11,7 +11,7 @@ SRC_URI="mirror://gnu/${PN}/${P}.tar.gz"
 
 LICENSE="GPL-3"
 SLOT="0/${PV}"
-IUSE="curl doc fftw +glpk gnuplot gui hdf5 java opengl
+IUSE="curl doc fftw +glpk gnuplot gui hdf5 java json opengl
 	portaudio postscript +qhull +qrupdate readline sndfile +sparse
 	ssl static-libs sundials X zlib"
 # Issue when building w/ SSL needs investigation
@@ -50,6 +50,7 @@ RDEPEND="
 	)
 	hdf5? ( sci-libs/hdf5:0= )
 	java? ( >=virtual/jre-1.6.0:* )
+	json? ( dev-libs/rapidjson )
 	opengl? (
 		media-libs/freetype:2=
 		media-libs/fontconfig:1.0=
@@ -151,6 +152,7 @@ src_configure() {
 		$(use_enable static-libs static) \
 		$(use_enable doc docs) \
 		$(use_enable java) \
+		$(use_enable json rapidjson) \
 		$(use_enable readline) \
 		$(use_with curl) \
 		$(use_with fftw fftw3) \
@@ -162,7 +164,7 @@ src_configure() {
 		$(use_with opengl fltk) \
 		$(use_with ssl openssl) \
 		$(use_with portaudio) \
-		$(use_with qhull_r) \
+		$(use_with qhull qhull_r) \
 		$(use_with qrupdate) \
 		$(use_with gui qt 5) \
 		$(use_with sndfile) \