[gnome-boxes/backport-to-the-future: 6/7] flatpak: Build cdrkit build with gcc 10

[Felipe Borges <felipeborges src gnome org>]

commit 76ae828d47be9102601db3c0f603bd4e28f4d723
Author: Felipe Borges <felipeborges gnome org>
Date:   Wed Jun 3 16:33:24 2020 +0200

    flatpak: Build cdrkit build with gcc 10

 build-aux/flatpak/genisoimage-extern.patch | 25 +++++++++++++++++++++++++
 build-aux/flatpak/org.gnome.Boxes.json     |  4 ++++
 2 files changed, 29 insertions(+)
---
diff --git a/build-aux/flatpak/genisoimage-extern.patch b/build-aux/flatpak/genisoimage-extern.patch
new file mode 100644
index 00000000..d35d49db
--- /dev/null
+++ b/build-aux/flatpak/genisoimage-extern.patch
@@ -0,0 +1,25 @@
+From 54d94c684d87152e98ebbf589b3dfc4e2b852034 Mon Sep 17 00:00:00 2001
+From: Felipe Borges <felipeborges gnome org>
+Date: Wed, 3 Jun 2020 16:31:31 +0200
+Subject: [PATCH] WIP
+
+---
+ genisoimage/genisoimage.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/genisoimage/genisoimage.h b/genisoimage/genisoimage.h
+index bbedfb0..6f0f7d1 100644
+--- a/genisoimage/genisoimage.h
++++ b/genisoimage/genisoimage.h
+@@ -376,7 +376,7 @@ extern int use_fileversion;
+ extern int    split_SL_component;
+ extern int    split_SL_field;
+ extern char   *trans_tbl;
+-char          *outfile;
++extern char           *outfile;
+ 
+ #define       JMAX            64      /* maximum Joliet file name length (spec) */
+ #define       JLONGMAX        103     /* out of spec Joliet file name length */
+-- 
+2.26.2
+
diff --git a/build-aux/flatpak/org.gnome.Boxes.json b/build-aux/flatpak/org.gnome.Boxes.json
index 5a68f052..3c92a9f8 100644
--- a/build-aux/flatpak/org.gnome.Boxes.json
+++ b/build-aux/flatpak/org.gnome.Boxes.json
@@ -423,6 +423,10 @@
                     "type" : "git",
                     "url" : "https://github.com/Distrotech/cdrkit";,
                     "branch" : "7b4bb72389ea5ea3ecc94545036dcff4728ec38a"
+                },
+                {
+                    "type" : "patch",
+                    "path" : "genisoimage-extern.patch"
                 }
             ]
         },