sci-visualization/gnuplot: Update live ebuild to EAPI 8 and fix patch

Package-Manager: Portage-3.0.20, Repoman-3.0.3
Signed-off-by: Ulrich Müller <ulm@gentoo.org>

sci-visualization/gnuplot/files/gnuplot-5.5-no-picins.patch

@@ -0,0 +1,18 @@
+Do not require picins.sty.
+https://bugs.gentoo.org/577828#c4
+
+--- gnuplot/docs/Makefile.am
++++ gnuplot/docs/Makefile.am
+@@ -179,9 +179,10 @@
+ 	$(AM_V_at)GNUPLOT_LIB=$(top_srcdir)/demo $(GNUPLOT_EXE) $(srcdir)/plotstyles.gnu
+ 	  rm -f gpinsetfigure.tex ; \
+ 	  ( echo "\usepackage{graphicx}" > gpinsetfigure.tex ; \
+-	    echo "\usepackage{picins}" >> gpinsetfigure.tex ; \
+ 	    echo "\newcommand{\gpinsetfigure}[1]{" >> gpinsetfigure.tex ; \
+-	    echo "  \parpic[r][rt]{\includegraphics[width=3in,keepaspectratio]{#1}}" >> gpinsetfigure.tex ; \
++	    echo "  \begin{figure}[htb]" >> gpinsetfigure.tex ; \
++	    echo "  \centering\includegraphics[width=3in,keepaspectratio]{#1}" >> gpinsetfigure.tex ; \
++	    echo "  \end{figure}" >> gpinsetfigure.tex ; \
+ 	    echo "}" >> gpinsetfigure.tex ; \
+ 	  ) ; \
+ 	$(AM_V_GEN)touch $@

sci-visualization/gnuplot/gnuplot-5.5.9999-r1.ebuild

@@ -1,9 +1,9 @@
 # Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI=8
 
-LUA_COMPAT=( lua5-{1,2,3} )
+LUA_COMPAT=( lua5-{1,2,3,4} )
 WX_GTK_VER="3.0-gtk3"
 
 inherit autotools flag-o-matic lua-single readme.gentoo-r1 toolchain-funcs wxwidgets
@@ -70,13 +70,13 @@ BDEPEND="
 		app-text/ghostscript-gpl )
 	qt5? ( dev-qt/linguist-tools:5 )"
 
+IDEPEND="latex? ( virtual/latex-base )"
+
 GP_VERSION="${PV%.*}"
-E_SITEFILE="lisp/50${PN}-gentoo.el"
 TEXMF="${EPREFIX}/usr/share/texmf-site"
 
 PATCHES=(
-	"${FILESDIR}"/${PN}-5.0.1-fix-underlinking.patch
-	"${FILESDIR}"/${PN}-5.0.6-no-picins.patch
+	"${FILESDIR}"/${PN}-5.5-no-picins.patch
 )
 
 pkg_setup() {