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Full Discussion: Compilation problem with gfortran
Top Forums Programming Compilation problem with gfortran Post 302543529 by drl on Monday 1st of August 2011 06:44:36 AM
Old 08-01-2011
Hi.

An undefined reference means that there is no matching subroutine or function available by that name.

The iargc_ symbol seems odd. In the example I posted, the external is found in a standard shared library (output is from the command nm):
Code:
Looking at /usr/lib/libgfortran.so.3
00000000000b8fe0 T _gfortran_iargc

What exactly did you change for the iargc correction?

Your make output did not show that the c routines were compiled. Do you know if they were?

My sense is that you may need to do some additional work to allow c routines to be called from Fortran-90-compiled source, but we can get to that later.

Please post results for running these commands:
Code:
uname -a
gfortran --version
nm rd_wr_formatted.o

Here's the output from my system, you should expect something similar:
Code:
Linux leap 2.6.26-2-amd64 #1 SMP Tue Jan 25 05:59:43 UTC 2011 x86_64 GNU/Linux

GNU Fortran (Debian 4.3.2-1.1) 4.3.2

0000000000000000 T MAIN__
                 U _gfortran_iargc
                 U _gfortran_set_options
                 U _gfortran_st_write
                 U _gfortran_st_write_done
                 U _gfortran_transfer_character
                 U _gfortran_transfer_integer
0000000000000000 r options.0.903

Best wishes ... cheers, drl
 

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LEARN ABOUT DEBIAN

locale::language

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

NAME

       Locale::Language - standard codes for language identification

SYNOPSIS

	  use Locale::Language;

	  $lang = code2language('en');	      # $lang gets 'English'
	  $code = language2code('French');    # $code gets 'fr'

	  @codes   = all_language_codes();
	  @names   = all_language_names();

DESCRIPTION

       The "Locale::Language" module provides access to standard codes used for identifying languages, such as those as defined in ISO 639.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639 two-
       letter codes will be used.

SUPPORTED CODE SETS

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

       alpha-2
	   This is the set of two-letter (lowercase) codes from ISO 639, such as 'he' for Hebrew.

	   This code set is identified with the symbol "LOCALE_LANG_ALPHA_2".

	   This is the default code set.

       alpha-3
	   This is the set of three-letter (lowercase) bibliographic codes from ISO 639, such as 'heb' for Hebrew.

	   This code set is identified with the symbol "LOCALE_LANG_ALPHA_3".

       term
	   This is the set of three-letter (lowercase) terminologic codes from ISO 639.

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

ROUTINES

       code2language ( CODE [,CODESET] )
       language2code ( NAME [,CODESET] )
       language_code2code ( CODE ,CODESET ,CODESET2 )
       all_language_codes ( [CODESET] )
       all_language_names ( [CODESET] )
       Locale::Language::rename_language  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Language::add_language  ( CODE ,NAME [,CODESET] )
       Locale::Language::delete_language  ( CODE [,CODESET] )
       Locale::Language::add_language_alias  ( NAME ,NEW_NAME )
       Locale::Language::delete_language_alias	( NAME )
       Locale::Language::rename_language_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Language::add_language_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Language::delete_language_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.loc.gov/standards/iso639-2/
	   Source of the ISO 639 codes.

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::Language(3perl)
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