diff --git a/x3270-3.6-gcc10.patch b/x3270-3.6-gcc10.patch
new file mode 100644
index 0000000..7580fe7
--- /dev/null
+++ b/x3270-3.6-gcc10.patch
@@ -0,0 +1,23 @@
+diff -up suite3270-3.6/x3270/screen.c.me suite3270-3.6/x3270/screen.c
+diff -up suite3270-3.6/x3270/xscreen.h.me suite3270-3.6/x3270/xscreen.h
+--- suite3270-3.6/x3270/xscreen.h.me	2020-02-05 21:11:35.635013942 +0100
++++ suite3270-3.6/x3270/xscreen.h	2020-02-05 21:15:27.437340812 +0100
+@@ -163,5 +163,5 @@ struct font_list {
+     struct font_list	*next;
+     char		*mlabel;
+ };
+-struct font_list *font_list;
+-int font_count;
++extern struct font_list *font_list;
++extern int font_count;
+diff -up suite3270-3.6/include/glue.h.me suite3270-3.6/include/glue.h
+--- suite3270-3.6/include/glue.h.me	2020-02-05 21:22:25.274825729 +0100
++++ suite3270-3.6/include/glue.h	2020-02-05 21:22:46.882066351 +0100
+@@ -49,5 +49,5 @@ typedef bool merge_profile_t(void);
+ void register_merge_profile(merge_profile_t *);
+ 
+ /* XtGlue.c */
+-void (*Error_redirect)(const char *);
+-void (*Warning_redirect)(const char *);
++extern void (*Error_redirect)(const char *);
++extern void (*Warning_redirect)(const char *);
diff --git a/x3270.spec b/x3270.spec
index 1218322..f105b3c 100644
--- a/x3270.spec
+++ b/x3270.spec
@@ -4,7 +4,7 @@
 Summary: An X Window System based IBM 3278/3279 terminal emulator
 Name: x3270
 Version: 3.6ga8
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: BSD
 URL: http://x3270.sourceforge.net/
 Source0: http://downloads.sourceforge.net/%{name}/suite3270-%{version}-src.tgz
@@ -13,6 +13,7 @@ Source2: x3270.desktop
 Patch0: x3270-3.5-paths.patch
 Patch1: x3270-3.5-ibmhostpath.patch
 Patch2: x3270-3.5-odr.patch
+Patch3: x3270-3.6-gcc10.patch
 
 BuildRequires: ncurses-devel
 BuildRequires: readline-devel
@@ -62,6 +63,7 @@ Install the %{name}-text package if you need to access IBM hosts using an IBM
 %patch0 -p1 -b .paths
 %patch1 -p1 -b .ibmhosts
 %patch2 -p1
+%patch3 -p1
 
 for d in c3270 pr3287 s3270 x3270; do
     for f in LICENSE README html; do
@@ -128,6 +130,9 @@ desktop-file-install \
 
 
 %changelog
+* Wed Feb 05 2020 Than Ngo <than@redhat.com> - 3.6ga8-5
+- fixed FTBFS against gcc10
+
 * Fri Jan 31 2020 Fedora Release Engineering <releng@fedoraproject.org> - 3.6ga8-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild