Author: Andreas Beckmann <anbe@debian.org>
Description: fix FTBFS with gcc-10
 gcc-10 defaults to -fno-common
 see https://gcc.gnu.org/gcc-10/porting_to.html
Bug-Debian: https://bugs.debian.org/957351

--- a/i7z_Dual_Socket.c
+++ b/i7z_Dual_Socket.c
@@ -37,7 +37,7 @@ float Read_Voltage_CPU(int cpu_num);
 extern struct program_options prog_options;
 FILE *fp_log_file;
 
-struct timespec global_ts;
+extern struct timespec global_ts;
 extern FILE *fp_log_file_freq_1, *fp_log_file_freq_2;
 
 extern char* CPU_FREQUENCY_LOGGING_FILE_single;