How to compile source code for Ax.25 with FEC support Not other services required

[Mas313]

Hello
How can i know the source file for AX.25 modem with FEC only and not any other like Gateways KISS TCP etc to get compile the modem only. The Files are linked.

[wb2osz]

Here is list of the source file names and their functionality. If you want a subset of the functionality, you can start removing parts you don't want and workaound all the resulting errors. It would would be a significant amount of effort. What is your real goal? Why can't you use the complete application?

Name	Purpose
aclients.c	Test program for comparing reception from multiple TNCs, side by side.
ais.c	Processing received AIS transmissions and converting to NMEA sentence representation.
aprs_tt.c	First half of APRStt gateway.  Parse the tone sequences and extract meaning from them.
atest.c	Test fixture for using the demodulator with a file rather than live audio.
audio.c	Interface to the “sound card” audio devices for Linux.
audio_portaudio.c	Interface to the “sound card” audio devices for Mac OSX
audio_stats.c	Print audio input stream statistics for troubleshooting.
audio_win.c	Interface to the “sound card” audio devices for MS Windows.
ax25_link.c	AX.25 v2.2 Data Link State Machine for connected mode packet radio.
ax25_pad.c	Builds packet objects from HDLC frames or text representation.  Extracts information, modifies them, prepares for printing and transmission.
ax25_pad2.c	The original ax25_pad.c was written with APRS in mind.  It handles UI frames and transparency for a KISS TNC.  Here we add new functions that can handle the more general cases of AX.25 frames.
beacon.c	Transmit information periodically, either at a fixed rate or based on movement.
cdigipeater.c	Digipeater for traditional connected mode packet.  APRS digipeater is in digipeater.c
config.c	Parse the configuration file and put into a suitable form for later use.
decode_aprs.c	Decode information part of an APRS frame.  Print in human readable format and point out problems.
dedupe.c	Avoid transmitting duplicate packets which are too close together.
demod.c	Common entry point for multiple types of demodulators.  This calls functions in demod_9600.c, demod_afsk.c , or demod_psk.c, depending on the modem type selected.
demod_9600.c	Demodulator for scrambled baseband encoding used by early hardware designs by G3RUH and K9NG.
demod_afsk.c	Demodulator for Audio Frequency Shift Keying (AFSK).
demod_psk.c	Demodulator for Phase Shift Keying (PSK).
digipeater.c	Logic for APRS digipeater.  UI frames only.  See cdigipeater.c for traditional connected mode packet.
direwolf.c	Main program.
dlq.c	Received frame queue.
dsp.c	Generate the filters used by the demodulators.
dtime_now.c	Returns current time with more resolution than time() so we can measure short intervals of elapsed time.
dtmf.c	Decoder for DTMF, commonly known as "touch tones."
dwgps.c	Interface for obtaining location from GPS.  This is independent of whether we are using gpsd or reading NMEA sentences from a serial port.
dwgpsd.c	Obtain GPS information using gpsd.
dwgpsnmea.c	Read directly from GPS over serial port and pars the NMEA sentences.
encode_aprs.c	Construct APRS packets (e.g.  Position or Object Report) from various parameters.
fc s_calc.c	Calculate the FCS for an AX.25 frame.
fx25_encode.c	FX.25
fx25_extract.c	FX.25
fx25_init.c	FX.25
fx25_rec.c	FX.25
fx25_send.c	FX.25
gen_packets.c	Test program for generating AX.25 frames.   Given messages are converted to audio and written  to a .WAV type audio file.
gen_tone.c	Convert bits to AFSK for writing to .WAV sound file or a sound device.
hdlc_rec.c	Extract HDLC frames from a stream of bits.
hdlc_rec2.c	Extract HDLC frame from a block of bits after someone else has done the work of pulling it out from between  the special "flag" sequences.
hdlc_send.c	Convert HDLC frames to a stream of bits.
igate.c	IGate client.  Establish connection with a tier 2 IGate server and relay packets between RF and Internet.
Il2p_codec.c	IL2P
Il2p_header.c	IL2P
Il2p_init.c	IL2P
Il2p_payload.c	IL2P
Il2p_rec.c	IL2P
Il2p_scramble.c	IL2P
Il2p_send.c	IL2P
Il2p_test.c	IL2P
kiss.c	KISS TNC via pseudo terminal.  Linux only.
kiss_frame.c	Common code used by Serial port and network versions of KISS protocol.
kissnet.c	KISS TNC over TCP.
Kissserial.c	KISS TNC over serial port.
latlong.c	Various functions for dealing with latitude and longitude.
ll2utm.c	Utility for Latitude / Longitude to UTM conversion.
log.c	Save received packets to a log file.
log2gpx.c	Separate application for converting log file to GPX format.
mheard.c	Maintain a list of all stations heard.
morse.c	Generate audio for Morse Code.
multi_modem.c	Use multiple modems in parallel to increase chances of decoding less than ideal signals.   Pick the best one when there are duplicates.
nmea.c	Send NMEA waypoint sentences to GPS display or mapping application.
pfilter.c	Packet filtering for digipeating or IGate.
ptt.c	Activate the output control lines for push to talk (PTT) and other purposes.
rdq.c	Obsolete.  Should be removed.
recv.c	Process audio input for receiving.
redecode.c	Obsolete.  Should be removed.
rrbb.c	Raw Received Bit Buffer.  An array of bits used to hold data out of the demodulator before feeding it into the HLDC decoding.
serial_port.c	Interface to serial port, hiding operating system differences.
server.c	Provide service to other applications via "AGW TCPIP Socket Interface".
symbols.c	Functions related to the APRS symbols.
telemetry.c	Decode APRS telemetry information.   Point out where it violates the protocol spec and other applications might not interpret it properly.
textcolor.c	All text output, including color coding for different types of information.
tq.c	Transmit queue - hold packets for transmission until the channel is clear.
tt_text.c	Translate between text and touch tone representation.
tt_user.c	Second half of APRStt gateway.  This maintains a list of recently heard APRStt users and prepares "object" format packets for transmission.
ttcalc.c	Simple Touch Tone to Speech calculator.  Demonstration of how Dire Wolf can be used as a DTMF / Speech interface for ham radio applications.
utm2ll.c	Utility for UTM to Latitude / Longitude conversion.
walk96.c	Quick hack to read GPS location and send very frequent position reports frames to a KISS TNC.
waypoint.c	Send NMEA waypoint sentences to GPS display or mapping application.
xid.c	Encode and decode the info field of XID frames.
xmit.c	Transmit queued up packets when channel is clear.