Symbols not found for architecture: trouble compiling with C++ Post: 302816721

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Top Forums Programming Symbols not found for architecture: trouble compiling with C++ Post 302816721 by Tyler_92 on Tuesday 4th of June 2013 12:42:29 PM

06-04-2013

Registered User

Symbols not found for architecture: trouble compiling with C++

Hello,
I am writing a program which relies on some heavy astronomy calculations, so I am using libnova c++ astronomy libraries => libnova: libnova.
I started off with a simple program to make sure everything compiled ok (below)

Code:

//Simple example program to test Libnova C++ class libraries

#include <stdio.h>
#include <libnova/lunar.h>
#include <libnova/julian_day.h>

int main (int argc, char* argv[])
{
    double JD;
    double moonDisk;
    //Get Julian Date from System
    JD = ln_get_julian_from_sys(); //function from julian_day.c
    
    //Use JD to calculate the illuminated lunar disk percentage
    moonDisk = ln_get_lunar_disk(JD); //function from lunar.c
    return 0;
}

But when I try to compile this, using

Code:

g++ -o Astro AstroTest.cpp

I receive the following error:
Undefined symbols for architecture x86_64:
"_ln_get_julian_from_sys", referenced from:
_main in ccrtNz4O.o
"_ln_get_lunar_disk", referenced from:
_main in ccrtNz4O.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status

I researched this error and it seems like it is pretty general. I am using a MacbookPro OSX 10.8, and "uname -m" gives me "x86_64". And when I run

Code:

file lib/libnova.dylib

I get "Mach-O 64-bit dynamically linked shared library x86_64". I am not sure what the problem is here, any help would be very appreciated.
Thanks

Tyler_92

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irsend

IRSEND(1)								FSF								 IRSEND(1)

NAME

       irsend - basic LIRC program to send infra-red commands

SYNOPSIS

       irsend [options] DIRECTIVE REMOTE CODE [CODE...]

DESCRIPTION

       Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such
       as TV boxes, HiFi sets, etc.

       DIRECTIVE can be:
	  SEND_ONCE	    - send CODE [CODE ...] once
	  SEND_START	    - start repeating CODE
	  SEND_STOP	    - stop repeating CODE
	  LIST		    - list configured remote items
	  SET_TRANSMITTERS  - set transmitters NUM [NUM ...]
	  SIMULATE	    - simulate IR event

       REMOTE is the name of a remote, as described in the lircd configuration file.

       CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file.

       NUM is the transmitter number of the hardware device.

       For the LIST DIRECTIVE, REMOTE and/or CODE can be empty:

	  LIST	 ""    ""   - list all configured remote names
	  LIST REMOTE  ""   - list all codes of REMOTE
	  LIST REMOTE CODE  - list only CODE of REMOTE

       The SIMULATE command only works if it has been explicitly enabled in lircd.

       -h --help
	      display usage summary

       -v --version
	      display version

       -d --device
	      use given lircd socket [/var/run/lirc/lircd]

       -a --address=host[:port]
	      connect to lircd at this address

       -# --count=n
	      send command n times

EXAMPLES

	  irsend LIST DenonTuner ""
	  irsend SEND_ONCE  DenonTuner PROG-SCAN
	  irsend SEND_ONCE  OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP
	  irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3
	  irsend SEND_STOP  OnkyoAmpli VOL-DOWN
	  irsend SET_TRANSMITTERS 1
	  irsend SET_TRANSMITTERS 1 3 4
	  irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S"

FILES

       /etc/lirc/lircd.conf
	      Default lircd configuration file.  It should contain all the remotes, their infra-red codes and the corresponding timing	and  wave-
	      form details.

DIAGNOSTICS

       If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics:
       "irsend: could not connect to socket"
       "irsend: Connection refused" (or "Permission denied").

SEE ALSO

       The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory.

       lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org.

irsend 0.8.7pre1						     May 2010								 IRSEND(1)

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irsend