fix gcc upgrade causes compilation failure

ykpers-args-extern.patch

@@ -0,0 +1,13 @@
+--- ykpers-args.h	2019-02-19 13:29:54.000000000 +0100
++++ ykpers-args.h.patch	2020-02-14 13:27:53.624129087 +0100
+@@ -33,8 +33,8 @@
+ 
+ #include "ykpers.h"
+ 
+-const char *usage;
+-const char *optstring;
++extern const char *usage;
++extern const char *optstring;
+ 
+ int args_to_config(int argc, char **argv, YKP_CONFIG *cfg, char *oathid,
+ 		   size_t oathid_len, const char **infname,

ykpers.spec

@@ -2,11 +2,12 @@
 
 Name:    ykpers
 Version: 1.20.0
-Release: 2
+Release: 3
 Summary: The YubiKey Personalization package contains a library and command line tool used to personalize
 License: BSD
 URL:	 https://developers.yubico.com/yubikey-personalization/
 Source0: https://developers.yubico.com/yubikey-personalization/%{name}-%{version}.tar.gz
+Patch0:  ykpers-args-extern.patch
 
 BuildRequires: 	libusb-devel gcc libyubikey-devel systemd-udev
 
@@ -21,6 +22,7 @@ The YubiKey Personalization package contains a library and command line tool use
 
 %prep
 %setup -q -n %{name}-%{version}/
+%patch0 -p0
 
 %build
 %configure --enable-static=no --with-udevrulesdir=/usr/lib/udev/rules.d
@@ -53,6 +55,9 @@ rm -rf %{buildroot}/%{_libdir}/*.la
 
 
 %changelog
+* Fri 30 Jul 2021 zhangtao <zhangtao221@huawei.com> - 1.20.0-3
+-fix gcc upgrade causes compilation failure
+
 * Mon May 31 2021 huanghaitao <huanghaitao8@huawei.com> - 1.20.0-2
 - Completing build dependencies to define %{_udevrulesdir} macros