diff --git a/eppic-use-extern-in-devel-declaration.patch b/eppic-use-extern-in-devel-declaration.patch
new file mode 100644
index 0000000..da10c6f
--- /dev/null
+++ b/eppic-use-extern-in-devel-declaration.patch
@@ -0,0 +1,13 @@
+Index: b/libeppic/eppic.h
+===================================================================
+--- a/libeppic/eppic.h
++++ b/libeppic/eppic.h
+@@ -467,7 +467,7 @@ type_t  *eppic_addstorage(type_t *t1, ty
+ type_t  *eppic_getvoidstruct(int ctype);
+ 
+ extern int lineno, needvar, instruct, nomacs, eppic_legacy;
+-node_t *lastv;
++extern node_t *lastv;
+ 
+ #define NULLNODE ((node_t*)0)
+ 
diff --git a/eppic.changes b/eppic.changes
index 9e99843..27e65dc 100644
--- a/eppic.changes
+++ b/eppic.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Tue Jun  9 13:58:20 UTC 2020 - David Mair <dmair@suse.com>
+
+- eppic-use-extern-in-devel-declaration.patch: Use extern for
+  declaration of lastv in libeppic/eppic.h. The file is used as the
+  devel eppic.h and if used in multiple sources for the same devel
+  link target and using gcc 10 the default behavior is to treat the
+  mutiple declarations as a link error.
+
 -------------------------------------------------------------------
 Fri Aug  2 06:59:17 UTC 2019 - Martin Liška <mliska@suse.cz>
 
diff --git a/eppic.spec b/eppic.spec
index 6bcdeed..af17c28 100644
--- a/eppic.spec
+++ b/eppic.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package eppic
 #
-# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2020 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -29,10 +29,11 @@ Group:          Development/Libraries/C and C++
 Source:         %{name}-git%{git_commit}.tar.bz2
 Patch1:         %{name}-fix-install.patch
 Patch2:         %{name}-no-return.patch
+Patch3:         %{name}-use-extern-in-devel-declaration.patch
 BuildRequires:  bison
 BuildRequires:  flex
 BuildRequires:  ncurses-devel
-Url:            http://code.google.com/p/eppic/
+URL:            http://code.google.com/p/eppic/
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
@@ -59,6 +60,7 @@ This package provides the include files and libraries needed for development.
 %setup -n %{name}-git%{git_commit}
 %patch1 -p1
 %patch2 -p1
+%patch3 -p1
 
 %build
 %global _lto_cflags %{_lto_cflags} -ffat-lto-objects