File fix-upstream-gcc10-build3.patch of Package minicom

From c8382374c5d340aa4115d527aed76e876ee5456b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Lyson=C4=9Bk?= <olysonek@redhat.com>
Date: Sun, 9 Feb 2020 16:16:59 +0100
Subject: [PATCH] Drop superfluous global variable definitions

The only place where the EXTERN macro mechanism is used to define the
global variables 'portfd_is_socket' and 'portfd_is_connected' is
minicom.c (by defining an empty EXTERN macro and including the
minicom.h header). The source file sysdep1_s.c already defines these
variables. The sysdep1_s.o object file is always linked to
minicom.o. Thus it is safe to drop the definitions from minicom.c and
only declare the variables in the minicom.h header.

This fixes linking with gcc 10 which uses -fno-common by default,
disallowing multiple global variable definitions.
---
 src/minicom.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: minicom-2.7.1/src/minicom.h
===================================================================
--- minicom-2.7.1.orig/src/minicom.h
+++ minicom-2.7.1/src/minicom.h
@@ -113,9 +113,9 @@ EXTERN char *dial_user;     /* Our usern
 EXTERN char *dial_pass;     /* Our password */
 
 #ifdef USE_SOCKET
-EXTERN int portfd_is_socket;	/* File descriptor is a unix socket */
-EXTERN int portfd_is_connected;	/* 1 if the socket is connected */
-EXTERN struct sockaddr_un portfd_sock_addr;	/* the unix socket address */
+extern int portfd_is_socket;	/* File descriptor is a unix socket */
+extern int portfd_is_connected;	/* 1 if the socket is connected */
+extern struct sockaddr_un portfd_sock_addr;	/* the unix socket address */
 #define portfd_connected ((portfd_is_socket && !portfd_is_connected) \
                            ? -1 : portfd)
 #else