lcdproc: fix compilation with GCC 10

Signed-off-by: Rosen Penev <rosenp@gmail.com>

utils/lcdproc/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=lcdproc
 PKG_VERSION:=0.5.9
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/lcdproc/lcdproc/releases/download/v$(PKG_VERSION)/

utils/lcdproc/patches/120-gcc10.patch

@@ -0,0 +1,21 @@
+--- a/clients/lcdproc/iface.c
++++ b/clients/lcdproc/iface.c
+@@ -32,6 +32,7 @@
+ #define UNSET_INT -1
+ #define UNSET_STR "\01"
+ 
++IfaceInfo iface[MAX_INTERFACES];
+ 
+ static int iface_count = 0;	/* number of interfaces */
+ static char unit_label[10] = "B";	/* default unit label is Bytes */
+--- a/clients/lcdproc/iface.h
++++ b/clients/lcdproc/iface.h
+@@ -18,7 +18,7 @@
+ /** max number of interfaces in multi-interface mode */
+ #define MAX_INTERFACES 3
+ 
+-IfaceInfo iface[MAX_INTERFACES];	/* interface info */
++extern IfaceInfo iface[MAX_INTERFACES];	/* interface info */
+ 
+ /** Update screen content */
+ int iface_screen(int rep, int display, int *flags_ptr);