x11-plugins/wmmoonclock: fix build with -fno-common

Closes: https://bugs.gentoo.org/707152
Package-Manager: Portage-2.3.89, Repoman-2.3.20
Signed-off-by: Bernard Cafarelli <voyageur@gentoo.org>

x11-plugins/wmmoonclock/files/wmmoonclock-1.29-gcc-10.patch

@@ -0,0 +1,37 @@
+diff -Naur wmmoonclock-1.29.orig/src/xutils.c wmmoonclock-1.29/src/xutils.c
+--- wmmoonclock-1.29.orig/src/xutils.c	2017-08-15 00:32:44.000000000 +0200
++++ wmmoonclock-1.29/src/xutils.c	2020-02-27 11:42:33.266076617 +0100
+@@ -52,6 +52,13 @@
+ XpmIcon		wmgen;
+ Pixmap		pixmask;
+ 
++Display		*display;
++Window          Root;
++Window          iconwin, win;
++int             screen;
++int             DisplayDepth;
++
++
+ 
+ 
+ 
+diff -Naur wmmoonclock-1.29.orig/src/xutils.h wmmoonclock-1.29/src/xutils.h
+--- wmmoonclock-1.29.orig/src/xutils.h	2017-08-15 00:31:51.000000000 +0200
++++ wmmoonclock-1.29/src/xutils.h	2020-02-27 11:41:58.180058348 +0100
+@@ -20,11 +20,11 @@
+ /*
+  *   Global variable
+  */
+-Display		*display;
+-Window          Root;
+-Window          iconwin, win;
+-int             screen;
+-int             DisplayDepth;
++extern Display		*display;
++extern Window          Root;
++extern Window          iconwin, win;
++extern int             screen;
++extern int             DisplayDepth;
+ 
+ 
+ 

x11-plugins/wmmoonclock/wmmoonclock-1.29.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2019 Gentoo Authors
+# Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=6
@@ -17,3 +17,5 @@ RDEPEND="x11-libs/libX11
 	x11-libs/libXpm"
 DEPEND="${RDEPEND}
 	x11-base/xorg-proto"
+
+PATCHES=( "${FILESDIR}"/${P}-gcc-10.patch )