diff --git a/package/smstools3/0002-fix-build-with-gcc-10.x.patch b/package/smstools3/0002-fix-build-with-gcc-10.x.patch
new file mode 100644
index 0000000000..3ef6bba0f0
--- /dev/null
+++ b/package/smstools3/0002-fix-build-with-gcc-10.x.patch
@@ -0,0 +1,753 @@
+Description: fix of FTBFS with gcc10
+Author: Thorsten Alteholz <debian@alteholz.de>
+Index: smstools/src/smsd_cfg.h
+
+Fetch from: <https://salsa.debian.org/debian-mobcom-team/smstools/-/blob/57a358a9eebbe2ca5639cc526f7027944ed95ea1/debian/patches/gcc10.patch>
+
+Signed-off-by: Michael Fischer <mf@go-sys.de>
+
+===================================================================
+--- smstools.orig/src/smsd_cfg.h	2020-08-05 19:02:50.536596441 +0000
++++ smstools/src/smsd_cfg.h	2020-08-05 19:33:22.915005150 +0000
+@@ -126,17 +126,17 @@
+ #define ALPHABET_UNKNOWN        4
+ #define ALPHABET_DEFAULT        0
+ 
+-char process_title[32];         // smsd for main task, NOTIFIER or CHILD, name of a modem for other tasks.
+-int process_id;                 // -1 for main task, all modems have numbers starting with 0.
++extern char process_title[32];         // smsd for main task, NOTIFIER or CHILD, name of a modem for other tasks.
++extern int process_id;                 // -1 for main task, all modems have numbers starting with 0.
+                                 // This is the same as device, can be used like devices[process_id] if IS_MODEM_PROCESS.
+ 
+-time_t process_start_time;
++extern time_t process_start_time;
+ 
+-int modem_handle;               // Handle for modem.
++extern int modem_handle;               // Handle for modem.
+ 
+-int put_command_timeouts;
+-unsigned long long put_command_sent; // 3.1.16beta.
+-char tmpdir[PATH_MAX];          // 3.1.16beta.
++extern int put_command_timeouts;
++extern unsigned long long put_command_sent; // 3.1.16beta.
++extern char tmpdir[PATH_MAX];          // 3.1.16beta.
+ 
+ typedef struct
+ {
+@@ -284,204 +284,204 @@
+ 
+ // NOTE for regular run intervals: effective value is at least delaytime.
+ 
+-char configfile[PATH_MAX];	// Path to config file
+-char d_spool[PATH_MAX];		// Spool directory
+-char d_failed[PATH_MAX];	// Failed spool directory
+-char d_failed_copy[PATH_MAX];	// 3.1.17.
+-char d_incoming[PATH_MAX];	// Incoming spool directory
+-char d_incoming_copy[PATH_MAX]; // 3.1.16beta2.
+-char d_report[PATH_MAX];	// Incoming report spool directory
+-char d_report_copy[PATH_MAX];	// 3.1.17.
+-char d_phonecalls[PATH_MAX];    // Incoming phonecalls data directory
+-char d_saved[PATH_MAX];         // Directory for smsd's internal use, concatenation storage files etc.
+-char d_sent[PATH_MAX];		// Sent spool directory
+-char d_sent_copy[PATH_MAX];	// 3.1.17.
+-char d_checked[PATH_MAX];	// Spool directory for checked messages (only used when no provider queues used)
+-char eventhandler[PATH_MAX];	// Global event handler program or script
+-char alarmhandler[PATH_MAX];	// Global alarm handler program or script
+-char checkhandler[PATH_MAX];    // Handler that checks if the sms file is valid.
+-int alarmlevel;			// Alarm Level (9=highest). Verbosity of alarm handler.
+-char logfile[PATH_MAX];		// Name or Handle of Log File
+-int  loglevel;			// Log Level (9=highest). Verbosity of log file.
+-_queue queues[NUMBER_OF_MODEMS]; // Queues
+-_device devices[NUMBER_OF_MODEMS]; // Modem devices
+-int delaytime;			// sleep-time after workless
+-int delaytime_mainprocess;      // sleep-time after workless, main process. If -1, delaytime is used.
+-int blocktime;			// sleep-time after multiple errors
+-int blockafter;                 // Block modem after n errors
+-int errorsleeptime;		// sleep-time after each error
+-int autosplit;			// Splitting of large text messages 0=no, 1=yes 2=number with text, 3=number with UDH
+-int receive_before_send;	// if 1 smsd tries to receive one message before sending
+-int store_received_pdu;         // 0=no, 1=unsupported pdu's only, 2=unsupported and 8bit/unicode, 3=all
+-int store_sent_pdu;             // 0=no, 1=failed pdu's only, 2=failed and 8bit/unicode, 3=all
+-int validity_period;            // Validity period for messages.
+-int decode_unicode_text;        // 1 if unicode text is decoded internally.
+-int internal_combine;           // 1 if multipart message is combined internally.
+-int internal_combine_binary;    // 1 if multipart binary message is combined internally. Defaults to internal_combine.
+-int keep_filename;              // 0 if unique filename is created to each directory when a message file is moved.
+-int store_original_filename;    // 1 if an original filename is saved to message file when it's moved from
+-                                // outgoing directory to spooler. Works together with keep_filename.
+-int date_filename;              // 1 or 2 if YYYYMMDD is included to the filename of incoming message.
+-char regular_run[PATH_MAX];     // Script/program which is run regularly.
+-int regular_run_interval;       // Number of seconds between running a regular_run script/progdam.
+-char admin_to[SIZE_TO];         // Destination number for administrative messages.
+-int filename_preview;           // Number of chars of message text to concatenate to filename.
+-int incoming_utf8;              // 1 if incoming files are saved using UTF-8 character set.
+-int outgoing_utf8;              // 1 if outgoing files are automatically converted from UTF-8 to ISO and GSM.
+-int log_charconv;               // 1 if character set conversion is logged.
+-int log_single_lines;           // 1 if linefeeds are removed from the modem response to be logged.
+-int executable_check;           // 0 if eventhandler and other executables are NOT checked during the startup checking.
+-int keep_messages;              // For testing purposes: messages are not deleted and smsd stops after first run.
+-char priviledged_numbers[SIZE_PRIVILEDGED_NUMBERS]; // Priviledged numbers in incoming messages.
+-int ic_purge_hours;             // If internal_combine is used, concatenation storage is checked every ic_purge_interval minutes
+-int ic_purge_minutes;           // and if there is message parts older than defined, they are handled or deleted.
+-int ic_purge_read;              // 1 = message parts are stored as single messages. 0 = parts are just deleted.
+-int ic_purge_interval;          // 
+-char shell[PATH_MAX];           // Shell used to run eventhandler, defaults to /bin/sh
+-char adminmessage_device[32];   // Name of device used to send administrative messages of mainspooler.
+-int smart_logging;              // 1 = if loglevel is less than 7, degug log is written is there has been any errors.
+-int status_signal_quality;      // 1 = signal quality is written to status file.
+-int status_include_counters;    // 1 = succeeded, failed and received counters are included in the status line.
+-int status_include_uptime;      // 3.1.16beta: 1 = include started & uptime line in the status file.
+-int hangup_incoming_call;       // 1 = if detected unexpected input contains RING and we want to end call.
+-int max_continuous_sending;     // Defines when sending is breaked to do check/do other tasks. Time in minutes.
+-int voicecall_hangup_ath;       // If ATH is used instead of AT+CHUP.
++extern char configfile[PATH_MAX];	// Path to config file
++extern char d_spool[PATH_MAX];		// Spool directory
++extern char d_failed[PATH_MAX];	// Failed spool directory
++extern char d_failed_copy[PATH_MAX];	// 3.1.17.
++extern char d_incoming[PATH_MAX];	// Incoming spool directory
++extern char d_incoming_copy[PATH_MAX]; // 3.1.16beta2.
++extern char d_report[PATH_MAX];	// Incoming report spool directory
++extern char d_report_copy[PATH_MAX];	// 3.1.17.
++extern char d_phonecalls[PATH_MAX];    // Incoming phonecalls data directory
++extern char d_saved[PATH_MAX];         // Directory for smsd's internal use, concatenation storage files etc.
++extern char d_sent[PATH_MAX];		// Sent spool directory
++extern char d_sent_copy[PATH_MAX];	// 3.1.17.
++extern char d_checked[PATH_MAX];	// Spool directory for checked messages (only used when no provider queues used)
++extern char eventhandler[PATH_MAX];	// Global event handler program or script
++extern char alarmhandler[PATH_MAX];	// Global alarm handler program or script
++extern char checkhandler[PATH_MAX];    // Handler that checks if the sms file is valid.
++extern int alarmlevel;			// Alarm Level (9=highest). Verbosity of alarm handler.
++extern char logfile[PATH_MAX];		// Name or Handle of Log File
++extern int  loglevel;			// Log Level (9=highest). Verbosity of log file.
++extern _queue queues[NUMBER_OF_MODEMS]; // Queues
++extern _device devices[NUMBER_OF_MODEMS]; // Modem devices
++extern int delaytime;			// sleep-time after workless
++extern int delaytime_mainprocess;      // sleep-time after workless, main process. If -1, delaytime is used.
++extern int blocktime;			// sleep-time after multiple errors
++extern int blockafter;                 // Block modem after n errors
++extern int errorsleeptime;		// sleep-time after each error
++extern int autosplit;			// Splitting of large text messages 0=no, 1=yes 2=number with text, 3=number with UDH
++extern int receive_before_send;	// if 1 smsd tries to receive one message before sending
++extern int store_received_pdu;         // 0=no, 1=unsupported pdu's only, 2=unsupported and 8bit/unicode, 3=all
++extern int store_sent_pdu;             // 0=no, 1=failed pdu's only, 2=failed and 8bit/unicode, 3=all
++extern int validity_period;            // Validity period for messages.
++extern int decode_unicode_text;        // 1 if unicode text is decoded internally.
++extern int internal_combine;           // 1 if multipart message is combined internally.
++extern int internal_combine_binary;    // 1 if multipart binary message is combined internally. Defaults to internal_combine.
++extern int keep_filename;              // 0 if unique filename is created to each directory when a message file is moved.
++extern int store_original_filename;    // 1 if an original filename is saved to message file when it's moved from
++// outgoing directory to spooler. Works together with keep_filename.
++extern int date_filename;              // 1 or 2 if YYYYMMDD is included to the filename of incoming message.
++extern char regular_run[PATH_MAX];     // Script/program which is run regularly.
++extern int regular_run_interval;       // Number of seconds between running a regular_run script/progdam.
++extern char admin_to[SIZE_TO];         // Destination number for administrative messages.
++extern int filename_preview;           // Number of chars of message text to concatenate to filename.
++extern int incoming_utf8;              // 1 if incoming files are saved using UTF-8 character set.
++extern int outgoing_utf8;              // 1 if outgoing files are automatically converted from UTF-8 to ISO and GSM.
++extern int log_charconv;               // 1 if character set conversion is logged.
++extern int log_single_lines;           // 1 if linefeeds are removed from the modem response to be logged.
++extern int executable_check;           // 0 if eventhandler and other executables are NOT checked during the startup checking.
++extern int keep_messages;              // For testing purposes: messages are not deleted and smsd stops after first run.
++extern char priviledged_numbers[SIZE_PRIVILEDGED_NUMBERS]; // Priviledged numbers in incoming messages.
++extern int ic_purge_hours;             // If internal_combine is used, concatenation storage is checked every ic_purge_interval minutes
++extern int ic_purge_minutes;           // and if there is message parts older than defined, they are handled or deleted.
++extern int ic_purge_read;              // 1 = message parts are stored as single messages. 0 = parts are just deleted.
++extern int ic_purge_interval;          //
++extern char shell[PATH_MAX];           // Shell used to run eventhandler, defaults to /bin/sh
++extern char adminmessage_device[32];   // Name of device used to send administrative messages of mainspooler.
++extern int smart_logging;              // 1 = if loglevel is less than 7, degug log is written is there has been any errors.
++extern int status_signal_quality;      // 1 = signal quality is written to status file.
++extern int status_include_counters;    // 1 = succeeded, failed and received counters are included in the status line.
++extern int status_include_uptime;      // 3.1.16beta: 1 = include started & uptime line in the status file.
++extern int hangup_incoming_call;       // 1 = if detected unexpected input contains RING and we want to end call.
++extern int max_continuous_sending;     // Defines when sending is breaked to do check/do other tasks. Time in minutes.
++extern int voicecall_hangup_ath;       // If ATH is used instead of AT+CHUP.
+ 
+ // 3.1.5:
+-int trust_outgoing;             // 1 = it's _sure_ that files are created by rename AND permissions are correct. Speeds up spooling.
++extern int trust_outgoing;             // 1 = it's _sure_ that files are created by rename AND permissions are correct. Speeds up spooling.
+ 
+ // 3.1.5:
+-int ignore_outgoing_priority;   // 1 = Priority: high header is not checked. Speeds up spooling.
++extern int ignore_outgoing_priority;   // 1 = Priority: high header is not checked. Speeds up spooling.
+ 
+ // 3.1.7:
+-int ignore_exec_output;         // 1 = stdout and stderr of eventhandlers is _not_ checked.
++extern int ignore_exec_output;         // 1 = stdout and stderr of eventhandlers is _not_ checked.
+ 
+ // 3.1.7:
+-mode_t conf_umask;              // File mode creation mask for smsd and modem processes.
++extern mode_t conf_umask;              // File mode creation mask for smsd and modem processes.
+ 
+ // 3.1.7:
+-int trim_text;                  // 1 = trailing whitespaces are removed from text:
++extern int trim_text;                  // 1 = trailing whitespaces are removed from text:
+ 
+ // 3.1.7:
+-int use_linux_ps_trick;         // 1 = change argv[0] to "smsd: MAINPROCESS", "smsd: GSM1" etc.
++extern int use_linux_ps_trick;         // 1 = change argv[0] to "smsd: MAINPROCESS", "smsd: GSM1" etc.
+ 
+ // 3.1.7:
+-int log_unmodified;
++extern int log_unmodified;
+ 
+ // 3.1.7:
+-char suspend_filename[PATH_MAX];
++extern char suspend_filename[PATH_MAX];
+ 
+ // 3.1.9:
+-int spool_directory_order;
++extern int spool_directory_order;
+ 
+ // 3.1.9: 1 if read_from_modem is logged.
+-int log_read_from_modem;
++extern int log_read_from_modem;
+ 
+ // 3.1.16beta2: log_read_timing for performance tuning.
+-int log_read_timing;
++extern int log_read_timing;
+ 
+ // 3.1.16beta:
+-int log_response_time;
++extern int log_response_time;
+ 
+ // 3.1.16beta2:
+-int default_alphabet;
++extern int default_alphabet;
+ 
+ // 3.1.17: Child process for the mainprocess:
+-char mainprocess_child[PATH_MAX];
+-char mainprocess_child_args[PATH_MAX];
++extern char mainprocess_child[PATH_MAX];
++extern char mainprocess_child_args[PATH_MAX];
+ 
+ // 3.1.17: Notifier for the mainprocess:
+-int mainprocess_notifier;
++extern int mainprocess_notifier;
+ 
+ // 3.1.17: If *_copy was made, evenhandler can use it instead of original file:
+-int eventhandler_use_copy;
++extern int eventhandler_use_copy;
+ 
+ // 3.1.17: This defines how long to sleep while looping:
+-int sleeptime_mainprocess;
++extern int sleeptime_mainprocess;
+ 
+ // 3.1.17: Defines how often PID is checked to detect if another smsd is running:
+-int check_pid_interval;
++extern int check_pid_interval;
+ 
+ // 3.1.18: start script/program for mainprocess:
+-char mainprocess_start[PATH_MAX];
+-char mainprocess_start_args[PATH_MAX];
++extern char mainprocess_start[PATH_MAX];
++extern char mainprocess_start_args[PATH_MAX];
+ 
+-int message_count;              // Counter for sent messages. Multipart message is one message.
++extern int message_count;              // Counter for sent messages. Multipart message is one message.
+ 
+-volatile sig_atomic_t break_workless_delay; // To break the delay when SIGCONT is received.
+-volatile sig_atomic_t terminate; // To terminate when SIGTERM is received.
++extern volatile sig_atomic_t break_workless_delay; // To break the delay when SIGCONT is received.
++extern volatile sig_atomic_t terminate; // To terminate when SIGTERM is received.
+ 
+-char username[65];              // user and group name which are used to run.
+-char groupname[65];             // (max length is just a guess)
++extern char username[65];              // user and group name which are used to run.
++extern char groupname[65];             // (max length is just a guess)
+ 
+-char infofile[PATH_MAX];        // Hepler file for stopping the smsd smoothly.
+-char pidfile[PATH_MAX];         // File where a process id is stored.
++extern char infofile[PATH_MAX];        // Hepler file for stopping the smsd smoothly.
++extern char pidfile[PATH_MAX];         // File where a process id is stored.
+ 
+ // Command line arguments:
+-char arg_username[65];
+-char arg_groupname[65];
+-char arg_infofile[PATH_MAX];
+-char arg_pidfile[PATH_MAX];
+-char arg_logfile[PATH_MAX];
+-int arg_terminal;
++extern char arg_username[65];
++extern char arg_groupname[65];
++extern char arg_infofile[PATH_MAX];
++extern char arg_pidfile[PATH_MAX];
++extern char arg_logfile[PATH_MAX];
++extern int arg_terminal;
+ // 3.1.7:
+-char arg_7bit_packed[512];
+-int do_encode_decode_arg_7bit_packed;
++extern char arg_7bit_packed[512];
++extern int do_encode_decode_arg_7bit_packed;
+ 
+-int terminal;                   // 1 if smsd is communicating with terminal.
+-pid_t device_pids[NUMBER_OF_MODEMS]; // Pid's of modem processes.
+-char run_info[PATH_MAX];        // Information about external script/program execution.
++extern int terminal;                   // 1 if smsd is communicating with terminal.
++extern pid_t device_pids[NUMBER_OF_MODEMS]; // Pid's of modem processes.
++extern char run_info[PATH_MAX];        // Information about external script/program execution.
+ 
+-char communicate[32];           // Device name for terminal communication mode.
++extern char communicate[32];           // Device name for terminal communication mode.
+ 
+-char international_prefixes[PATH_MAX +1];
+-char national_prefixes[PATH_MAX +1];
++extern char international_prefixes[PATH_MAX +1];
++extern char national_prefixes[PATH_MAX +1];
+ 
+ // Storage for startup errors:
+-char *startup_err_str;
+-int startup_err_count;
++extern char *startup_err_str;
++extern int startup_err_count;
+ 
+ // Storage for PDU's:
+-char *incoming_pdu_store;
+-char *outgoing_pdu_store;
+-char *routed_pdu_store;
++extern char *incoming_pdu_store;
++extern char *outgoing_pdu_store;
++extern char *routed_pdu_store;
+ 
+ // Storage for getfile errors:
+-char *getfile_err_store;
++extern char *getfile_err_store;
+ 
+ // Text buffer for error messages:
+-char tb[SIZE_TB];
++extern char tb[SIZE_TB];
+ 
+ // Buffer for SIM memory checking:
+-char *check_memory_buffer;
+-size_t check_memory_buffer_size;
++extern char *check_memory_buffer;
++extern size_t check_memory_buffer_size;
+ 
+-int os_cygwin;                  // 1 if we are on Cygwin.
++extern int os_cygwin;                  // 1 if we are on Cygwin.
+ 
+-char language_file[PATH_MAX];   // File name of translated headers.
+-char yes_chars[SIZE_HEADER];    // Characters which mean "yes" in the yesno() question.
+-char no_chars[SIZE_HEADER];     // See details inside read_translation() function.
+-char yes_word[SIZE_HEADER];     // "yes" printed as an output.
+-char no_word[SIZE_HEADER];      // "no"
+-char datetime_format[SIZE_HEADER]; // strftime format string for time stamps (not inside status reports).
+-char logtime_format[SIZE_HEADER]; // 3.1.7: strftime format string for logging time stamps
+-char date_filename_format[SIZE_HEADER]; // 3.1.7: strftime format string for date_filename
+-int translate_incoming;         // 0 if incoming message headers are NOT transtaled.
++extern char language_file[PATH_MAX];   // File name of translated headers.
++extern char yes_chars[SIZE_HEADER];    // Characters which mean "yes" in the yesno() question.
++extern char no_chars[SIZE_HEADER];     // See details inside read_translation() function.
++extern char yes_word[SIZE_HEADER];     // "yes" printed as an output.
++extern char no_word[SIZE_HEADER];      // "no"
++extern char datetime_format[SIZE_HEADER]; // strftime format string for time stamps (not inside status reports).
++extern char logtime_format[SIZE_HEADER]; // 3.1.7: strftime format string for logging time stamps
++extern char date_filename_format[SIZE_HEADER]; // 3.1.7: strftime format string for date_filename
++extern int translate_incoming;         // 0 if incoming message headers are NOT transtaled.
+ 
+ // 3.1.14:
+-int logtime_us;
+-int logtime_ms;
++extern int logtime_us;
++extern int logtime_ms;
+ 
+ // 3.1.14:
+-int shell_test;
++extern int shell_test;
+ 
+ // Next two are for debugging purposes:
+-int enable_smsd_debug;
+-char smsd_debug[SIZE_SMSD_DEBUG]; // Header of an outgoing message file.
++extern int enable_smsd_debug;
++extern char smsd_debug[SIZE_SMSD_DEBUG]; // Header of an outgoing message file.
+ 
+ // 3.1.20: Alt keys in communication mode:
+ #define COMMUNICATE_A_KEY_COUNT 10
+-char communicate_a_keys[COMMUNICATE_A_KEY_COUNT][256];
++extern char communicate_a_keys[COMMUNICATE_A_KEY_COUNT][256];
+ 
+ /* initialize all variable with default values */
+ 
+Index: smstools/src/smsd_cfg.c
+===================================================================
+--- smstools.orig/src/smsd_cfg.c	2020-07-27 19:00:41.616207603 +0000
++++ smstools/src/smsd_cfg.c	2020-08-05 19:17:41.595712888 +0000
+@@ -38,6 +38,221 @@
+ #include "modeminit.h"
+ #include "charshift.h"
+ 
++
++/* global variables */
++char process_title[32];         // smsd for main task, NOTIFIER or CHILD, name of a modem for other tasks.
++int process_id;                 // -1 for main task, all modems have numbers starting with 0.
++                                // This is the same as device, can be used like devices[process_id] if IS_MODEM_PROCESS.
++
++time_t process_start_time;
++
++int modem_handle;               // Handle for modem.
++
++int put_command_timeouts;
++unsigned long long put_command_sent; // 3.1.16beta.
++char tmpdir[PATH_MAX];          // 3.1.16beta.
++
++// NOTE for regular run intervals: effective value is at least delaytime.
++
++char configfile[PATH_MAX];	// Path to config file
++char d_spool[PATH_MAX];		// Spool directory
++char d_failed[PATH_MAX];	// Failed spool directory
++char d_failed_copy[PATH_MAX];	// 3.1.17.
++char d_incoming[PATH_MAX];	// Incoming spool directory
++char d_incoming_copy[PATH_MAX]; // 3.1.16beta2.
++char d_report[PATH_MAX];	// Incoming report spool directory
++char d_report_copy[PATH_MAX];	// 3.1.17.
++char d_phonecalls[PATH_MAX];    // Incoming phonecalls data directory
++char d_saved[PATH_MAX];         // Directory for smsd's internal use, concatenation storage files etc.
++char d_sent[PATH_MAX];		// Sent spool directory
++char d_sent_copy[PATH_MAX];	// 3.1.17.
++char d_checked[PATH_MAX];	// Spool directory for checked messages (only used when no provider queues used)
++char eventhandler[PATH_MAX];	// Global event handler program or script
++char alarmhandler[PATH_MAX];	// Global alarm handler program or script
++char checkhandler[PATH_MAX];    // Handler that checks if the sms file is valid.
++int alarmlevel;			// Alarm Level (9=highest). Verbosity of alarm handler.
++char logfile[PATH_MAX];		// Name or Handle of Log File
++int  loglevel;			// Log Level (9=highest). Verbosity of log file.
++_queue queues[NUMBER_OF_MODEMS]; // Queues
++_device devices[NUMBER_OF_MODEMS]; // Modem devices
++int delaytime;			// sleep-time after workless
++int delaytime_mainprocess;      // sleep-time after workless, main process. If -1, delaytime is used.
++int blocktime;			// sleep-time after multiple errors
++int blockafter;                 // Block modem after n errors
++int errorsleeptime;		// sleep-time after each error
++int autosplit;			// Splitting of large text messages 0=no, 1=yes 2=number with text, 3=number with UDH
++int receive_before_send;	// if 1 smsd tries to receive one message before sending
++int store_received_pdu;         // 0=no, 1=unsupported pdu's only, 2=unsupported and 8bit/unicode, 3=all
++int store_sent_pdu;             // 0=no, 1=failed pdu's only, 2=failed and 8bit/unicode, 3=all
++int validity_period;            // Validity period for messages.
++int decode_unicode_text;        // 1 if unicode text is decoded internally.
++int internal_combine;           // 1 if multipart message is combined internally.
++int internal_combine_binary;    // 1 if multipart binary message is combined internally. Defaults to internal_combine.
++int keep_filename;              // 0 if unique filename is created to each directory when a message file is moved.
++int store_original_filename;    // 1 if an original filename is saved to message file when it's moved from
++                                // outgoing directory to spooler. Works together with keep_filename.
++int date_filename;              // 1 or 2 if YYYYMMDD is included to the filename of incoming message.
++char regular_run[PATH_MAX];     // Script/program which is run regularly.
++int regular_run_interval;       // Number of seconds between running a regular_run script/progdam.
++char admin_to[SIZE_TO];         // Destination number for administrative messages.
++int filename_preview;           // Number of chars of message text to concatenate to filename.
++int incoming_utf8;              // 1 if incoming files are saved using UTF-8 character set.
++int outgoing_utf8;              // 1 if outgoing files are automatically converted from UTF-8 to ISO and GSM.
++int log_charconv;               // 1 if character set conversion is logged.
++int log_single_lines;           // 1 if linefeeds are removed from the modem response to be logged.
++int executable_check;           // 0 if eventhandler and other executables are NOT checked during the startup checking.
++int keep_messages;              // For testing purposes: messages are not deleted and smsd stops after first run.
++char priviledged_numbers[SIZE_PRIVILEDGED_NUMBERS]; // Priviledged numbers in incoming messages.
++int ic_purge_hours;             // If internal_combine is used, concatenation storage is checked every ic_purge_interval minutes
++int ic_purge_minutes;           // and if there is message parts older than defined, they are handled or deleted.
++int ic_purge_read;              // 1 = message parts are stored as single messages. 0 = parts are just deleted.
++int ic_purge_interval;          //
++char shell[PATH_MAX];           // Shell used to run eventhandler, defaults to /bin/sh
++char adminmessage_device[32];   // Name of device used to send administrative messages of mainspooler.
++int smart_logging;              // 1 = if loglevel is less than 7, degug log is written is there has been any errors.
++int status_signal_quality;      // 1 = signal quality is written to status file.
++int status_include_counters;    // 1 = succeeded, failed and received counters are included in the status line.
++int status_include_uptime;      // 3.1.16beta: 1 = include started & uptime line in the status file.
++int hangup_incoming_call;       // 1 = if detected unexpected input contains RING and we want to end call.
++int max_continuous_sending;     // Defines when sending is breaked to do check/do other tasks. Time in minutes.
++int voicecall_hangup_ath;       // If ATH is used instead of AT+CHUP.
++
++// 3.1.5:
++int trust_outgoing;             // 1 = it's _sure_ that files are created by rename AND permissions are correct. Speeds up spooling.
++
++// 3.1.5:
++int ignore_outgoing_priority;   // 1 = Priority: high header is not checked. Speeds up spooling.
++
++// 3.1.7:
++int ignore_exec_output;         // 1 = stdout and stderr of eventhandlers is _not_ checked.
++
++// 3.1.7:
++mode_t conf_umask;              // File mode creation mask for smsd and modem processes.
++
++// 3.1.7:
++int trim_text;                  // 1 = trailing whitespaces are removed from text:
++
++// 3.1.7:
++int use_linux_ps_trick;         // 1 = change argv[0] to "smsd: MAINPROCESS", "smsd: GSM1" etc.
++
++// 3.1.7:
++int log_unmodified;
++
++// 3.1.7:
++char suspend_filename[PATH_MAX];
++
++// 3.1.9:
++int spool_directory_order;
++
++// 3.1.9: 1 if read_from_modem is logged.
++int log_read_from_modem;
++
++// 3.1.16beta2: log_read_timing for performance tuning.
++int log_read_timing;
++
++// 3.1.16beta:
++int log_response_time;
++
++// 3.1.16beta2:
++int default_alphabet;
++
++// 3.1.17: Child process for the mainprocess:
++char mainprocess_child[PATH_MAX];
++char mainprocess_child_args[PATH_MAX];
++
++// 3.1.17: Notifier for the mainprocess:
++int mainprocess_notifier;
++
++// 3.1.17: If *_copy was made, evenhandler can use it instead of original file:
++int eventhandler_use_copy;
++
++// 3.1.17: This defines how long to sleep while looping:
++int sleeptime_mainprocess;
++
++// 3.1.17: Defines how often PID is checked to detect if another smsd is running:
++int check_pid_interval;
++
++// 3.1.18: start script/program for mainprocess:
++char mainprocess_start[PATH_MAX];
++char mainprocess_start_args[PATH_MAX];
++
++int message_count;              // Counter for sent messages. Multipart message is one message.
++
++volatile sig_atomic_t break_workless_delay; // To break the delay when SIGCONT is received.
++volatile sig_atomic_t terminate; // To terminate when SIGTERM is received.
++
++char username[65];              // user and group name which are used to run.
++char groupname[65];             // (max length is just a guess)
++
++char infofile[PATH_MAX];        // Hepler file for stopping the smsd smoothly.
++char pidfile[PATH_MAX];         // File where a process id is stored.
++
++// Command line arguments:
++char arg_username[65];
++char arg_groupname[65];
++char arg_infofile[PATH_MAX];
++char arg_pidfile[PATH_MAX];
++char arg_logfile[PATH_MAX];
++int arg_terminal;
++// 3.1.7:
++char arg_7bit_packed[512];
++int do_encode_decode_arg_7bit_packed;
++
++int terminal;                   // 1 if smsd is communicating with terminal.
++pid_t device_pids[NUMBER_OF_MODEMS]; // Pid's of modem processes.
++char run_info[PATH_MAX];        // Information about external script/program execution.
++
++char communicate[32];           // Device name for terminal communication mode.
++
++char international_prefixes[PATH_MAX +1];
++char national_prefixes[PATH_MAX +1];
++
++// Storage for startup errors:
++char *startup_err_str;
++int startup_err_count;
++
++// Storage for PDU's:
++char *incoming_pdu_store;
++char *outgoing_pdu_store;
++char *routed_pdu_store;
++
++// Storage for getfile errors:
++char *getfile_err_store;
++
++// Text buffer for error messages:
++char tb[SIZE_TB];
++
++// Buffer for SIM memory checking:
++char *check_memory_buffer;
++size_t check_memory_buffer_size;
++
++int os_cygwin;                  // 1 if we are on Cygwin.
++
++char language_file[PATH_MAX];   // File name of translated headers.
++char yes_chars[SIZE_HEADER];    // Characters which mean "yes" in the yesno() question.
++char no_chars[SIZE_HEADER];     // See details inside read_translation() function.
++char yes_word[SIZE_HEADER];     // "yes" printed as an output.
++char no_word[SIZE_HEADER];      // "no"
++char datetime_format[SIZE_HEADER]; // strftime format string for time stamps (not inside status reports).
++char logtime_format[SIZE_HEADER]; // 3.1.7: strftime format string for logging time stamps
++char date_filename_format[SIZE_HEADER]; // 3.1.7: strftime format string for date_filename
++int translate_incoming;         // 0 if incoming message headers are NOT transtaled.
++
++// 3.1.14:
++int logtime_us;
++int logtime_ms;
++
++// 3.1.14:
++int shell_test;
++
++// Next two are for debugging purposes:
++int enable_smsd_debug;
++char smsd_debug[SIZE_SMSD_DEBUG]; // Header of an outgoing message file.
++
++// 3.1.20: Alt keys in communication mode:
++#define COMMUNICATE_A_KEY_COUNT 10
++char communicate_a_keys[COMMUNICATE_A_KEY_COUNT][256];
++
+ char *msg_dir = "%s directory %s cannot be opened.";
+ char *msg_file = "%s directory %s is not writable.";
+ char *msg_not_executable = "is not executable for smsd.";
+Index: smstools/src/logging.c
+===================================================================
+--- smstools.orig/src/logging.c	2020-07-27 19:00:41.612207583 +0000
++++ smstools/src/logging.c	2020-08-05 19:27:38.373800111 +0000
+@@ -25,6 +25,16 @@
+ #include "smsd_cfg.h"
+ #include "stats.h"
+ 
++
++// 3.1.16beta2: Moved logch() and prch() from charset.c to logging.c:
++char logch_buffer[8192];
++
++char prch(char ch);
++
++// 3.1.16beta: changed type:
++//int trouble_logging_started;
++time_t trouble_logging_started;
++
+ int Filehandle = -1;
+ int Level;
+ int SavedLevel;
+Index: smstools/src/logging.h
+===================================================================
+--- smstools.orig/src/logging.h	2020-07-27 19:00:41.612207583 +0000
++++ smstools/src/logging.h	2020-08-05 19:27:52.077848035 +0000
+@@ -18,7 +18,7 @@
+ #include <time.h>
+ 
+ // 3.1.16beta2: Moved logch() and prch() from charset.c to logging.c:
+-char logch_buffer[8192];
++extern char logch_buffer[8192];
+ 
+ #ifdef __GNUC__
+ void logch(char* format, ...) __attribute__ ((format(printf, 1, 2)));
+@@ -26,11 +26,11 @@
+ void logch(char* format, ...);
+ #endif
+ 
+-char prch(char ch);
++extern char prch(char ch);
+ 
+ // 3.1.16beta: changed type:
+ //int trouble_logging_started;
+-time_t trouble_logging_started;
++extern time_t trouble_logging_started;
+ 
+ int change_loglevel(int new_level);
+ void restore_loglevel();
+Index: smstools/src/stats.c
+===================================================================
+--- smstools.orig/src/stats.c	2020-07-27 19:00:41.616207603 +0000
++++ smstools/src/stats.c	2020-08-05 19:28:58.094078936 +0000
+@@ -29,6 +29,20 @@
+ #include <mm.h>
+ #endif
+ 
++
++_stats* statistics[NUMBER_OF_MODEMS]; // Statistic data (shared memory!)
++int rejected_counter;		// Statistic counter, rejected SM, number does not fit into any queue
++time_t start_time;		// Start time of smsd, allows statistic functions
++int printstatus;		// if 1 smsd outputs status on stdout
++time_t last_stats;		// time when the last stats file was created
++char d_stats[PATH_MAX];		// path to statistic files
++int stats_interval;		// time between statistic files in seconds.
++int stats_no_zeroes;		// Suppress files that contain only zeroes
++int status_interval;            // time between updating status file in seconds
++
++char *shared_buffer;
++
++
+ char newstatus[NUMBER_OF_MODEMS +1] = {0};
+ char oldstatus[NUMBER_OF_MODEMS +1] = {0};
+ 
+Index: smstools/src/stats.h
+===================================================================
+--- smstools.orig/src/stats.h	2020-07-27 19:00:41.616207603 +0000
++++ smstools/src/stats.h	2020-08-05 19:29:14.750137182 +0000
+@@ -33,17 +33,17 @@
+   int ber;
+ } _stats;
+ 
+-_stats* statistics[NUMBER_OF_MODEMS]; // Statistic data (shared memory!)
+-int rejected_counter;		// Statistic counter, rejected SM, number does not fit into any queue
+-time_t start_time;		// Start time of smsd, allows statistic functions
+-int printstatus;		// if 1 smsd outputs status on stdout
+-time_t last_stats;		// time when the last stats file was created
+-char d_stats[PATH_MAX];		// path to statistic files
+-int stats_interval;		// time between statistic files in seconds.
+-int stats_no_zeroes;		// Suppress files that contain only zeroes
+-int status_interval;            // time between updating status file in seconds
++extern _stats* statistics[NUMBER_OF_MODEMS]; // Statistic data (shared memory!)
++extern int rejected_counter;		// Statistic counter, rejected SM, number does not fit into any queue
++extern time_t start_time;		// Start time of smsd, allows statistic functions
++extern int printstatus;		// if 1 smsd outputs status on stdout
++extern time_t last_stats;		// time when the last stats file was created
++extern char d_stats[PATH_MAX];		// path to statistic files
++extern int stats_interval;		// time between statistic files in seconds.
++extern int stats_no_zeroes;		// Suppress files that contain only zeroes
++extern int status_interval;            // time between updating status file in seconds
+ 
+-char *shared_buffer;
++extern char *shared_buffer;
+ 
+ /* Creates shared memory variables for statistic data */
+ 
+Index: smstools/src/blacklist.c
+===================================================================
+--- smstools.orig/src/blacklist.c	2020-07-27 19:00:41.612207583 +0000
++++ smstools/src/blacklist.c	2020-08-05 19:34:13.903183463 +0000
+@@ -23,6 +23,8 @@
+ #include "alarm.h"
+ #include "smsd_cfg.h"
+ 
++char blacklist[256];     // Filename of the black-list
++
+ int inblacklist(char* msisdn)
+ {
+   FILE* file;
+Index: smstools/src/blacklist.h
+===================================================================
+--- smstools.orig/src/blacklist.h	2020-07-27 19:00:41.612207583 +0000
++++ smstools/src/blacklist.h	2020-08-05 19:34:04.903151994 +0000
+@@ -15,7 +15,7 @@
+ #ifndef BLACK_H
+ #define BLACK_H
+ 
+-char blacklist[256];	// Filename of the black-list
++extern char blacklist[256];	// Filename of the black-list
+ 
+ int inblacklist(char* msisdn);
+ 
+Index: smstools/src/whitelist.c
+===================================================================
+--- smstools.orig/src/whitelist.c	2020-07-27 19:00:41.616207603 +0000
++++ smstools/src/whitelist.c	2020-08-05 19:39:23.436266057 +0000
+@@ -23,6 +23,8 @@
+ #include "alarm.h"
+ #include "smsd_cfg.h"
+ 
++char whitelist[256];     // Filename of the white-list
++
+ /* Used with >= 3.1x */
+ int inwhitelist_q(char* msisdn, char *queuename)
+ {
+Index: smstools/src/whitelist.h
+===================================================================
+--- smstools.orig/src/whitelist.h	2020-07-27 19:00:41.616207603 +0000
++++ smstools/src/whitelist.h	2020-08-05 19:34:29.959239624 +0000
+@@ -15,7 +15,7 @@
+ #ifndef WHITE_H
+ #define WHITE_H
+ 
+-char whitelist[256];	// Filename of the white-list
++extern char whitelist[256];	// Filename of the white-list
+ 
+ /* Used with >= 3.1x */
+ int inwhitelist_q(char* msisdn, char *queuename);
