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Full Discussion: Symbols not found for architecture: trouble compiling with C++
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
Old 06-04-2013
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
 

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LEARN ABOUT DEBIAN

locale::script

Locale::Script(3perl)					 Perl Programmers Reference Guide				     Locale::Script(3perl)

NAME

       Locale::Script - standard codes for script identification

SYNOPSIS

	  use Locale::Script;

	  $script  = code2script('phnx');		      # 'Phoenician'
	  $code    = script2code('Phoenician'); 	      # 'Phnx'
	  $code    = script2code('Phoenician',
				 LOCALE_CODE_NUMERIC);	      # 115

	  @codes   = all_script_codes();
	  @scripts = all_script_names();

DESCRIPTION

       The "Locale::Script" module provides access to standards codes used for identifying scripts, such as those defined in ISO 15924.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 15924
       four-letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying scripts. The ones currently supported are:

       alpha
	   This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_ALPHA".

	   The Zxxx, Zyyy, and Zzzz codes are not used.

	   This is the default code set.

       numeric
	   This is a set of three-digit numeric codes from ISO 15924 such as 115 for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_NUMERIC".

ROUTINES

       code2script ( CODE [,CODESET] )
       script2code ( NAME [,CODESET] )
       script_code2code ( CODE ,CODESET ,CODESET2 )
       all_script_codes ( [CODESET] )
       all_script_names ( [CODESET] )
       Locale::Script::rename_script  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Script::add_script  ( CODE ,NAME [,CODESET] )
       Locale::Script::delete_script  ( CODE [,CODESET] )
       Locale::Script::add_script_alias  ( NAME ,NEW_NAME )
       Locale::Script::delete_script_alias  ( NAME )
       Locale::Script::rename_script_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::add_script_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::delete_script_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.unicode.org/iso15924/
	   Home page for ISO 15924.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2011 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2011-09-26						     Locale::Script(3perl)
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