Add pgf patches

dev-tex/pgf/0001-Workaround-goto-source-mishaps.patch

@@ -0,0 +1,52 @@
+From 2fe89c7027369a10b85ee6e46c4adb955a556228 Mon Sep 17 00:00:00 2001
+From: Jacopo De Simoi <jacopods@gmail.com>
+Date: Tue, 23 Jun 2020 11:23:06 -0400
+Subject: [PATCH] Workaround goto-source mishaps
+
+---
+ tex/generic/pgf/systemlayer/pgfsys-pdftex.def | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/tex/generic/pgf/systemlayer/pgfsys-pdftex.def b/tex/generic/pgf/systemlayer/pgfsys-pdftex.def
+index 510a4cca..07ba65d5 100644
+--- a/tex/generic/pgf/systemlayer/pgfsys-pdftex.def
++++ b/tex/generic/pgf/systemlayer/pgfsys-pdftex.def
+@@ -83,7 +83,7 @@
+     \pgfmathparse{#2}%
+     \setbox\pgfutil@tempboxa=\hbox to\pgf@max{\vbox to\pgfmathresult pt{\vfil\pgfsys@invoke{/Sh sh}}\hfil}%
+     \pgf@process{\pgfpoint{\pgf@max}{#2}}%
+-    \immediate\pdfxform resources {%
++    \pdfxform resources {%
+       /Shading << /Sh << /ShadingType 2
+       /ColorSpace \pgf@shading@device\space
+       /Domain [\pgf@pdfparseddomain]
+@@ -100,7 +100,7 @@
+     \pgfmathparse{#2}%
+     \setbox\pgfutil@tempboxa=\hbox to\pgfmathresult pt{\vbox to\pgf@max{\vfil\pgfsys@invoke{/Sh sh}}\hfil}%
+     \pgf@process{\pgfpoint{#2}{\pgf@max}}%
+-    \immediate\pdfxform resources {%
++    \pdfxform resources {%
+       /Shading << /Sh << /ShadingType 2
+       /ColorSpace \pgf@shading@device\space
+       /Domain [\pgf@pdfparseddomain]
+@@ -125,7 +125,7 @@
+     \pgf@sys@bp@correct{\pgf@y}%
+     \pgf@sys@bp@correct{\pgf@xa}%
+     \pgf@sys@bp@correct{\pgf@ya}%
+-    \immediate\pdfxform resources {%
++    \pdfxform resources {%
+       /Shading << /Sh << /ShadingType 3
+       /ColorSpace \pgf@shading@device\space
+       /Domain [\pgf@pdfparseddomain]
+@@ -304,7 +304,7 @@
+ 
+ \def\pgf@sys@pdf@install@mask#1{%
+   \setbox\pgfutil@tempboxa=\hbox{\pdfrefxform\csname pgfsmaskxform@#1\endcsname}
+-  \immediate\pdfxform%
++  \pdfxform%
+     attr {
+     /Group
+     <<
+-- 
+2.26.2
+