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Full Discussion: 64 bit Porting Problem !!!
Operating Systems Linux SuSE 64 bit Porting Problem !!! Post 302275822 by otheus on Monday 12th of January 2009 09:15:52 AM
Old 01-12-2009
I have gcc 4.1.1 installed. Maybe you have an older version. If so, this might not apply to you.

I am not familiar with the options you mentioned, but the v9 is definitely SPARC architecture specific. Using "-m64" will produce code for the 64-bit platform, which would be the default anyway. ints will be 32 bits, and pointers and longs will be 64-bits. You could use -mabi=32 will generate 32-bit code for your 64-bit platform. This might result in an inability to link against 64-bit libraries, but if you have 32-bit libraries also installed, it should work. You can do something similar with "-mlong32", which forces all longs and pointer types to 32 bits (but still uses the 64-bit abi so it could run on a 64 bit platform). It might be possible to combine -mlong-calls with this to ensure proper behavior with the linker, but that's just a WAG (wild ass guess).

I thought there was a way to tell the compiler to treat an "int" as 64-bits, but I cannot find an option for that in the manual. You can always use the preprocessor to try to change "int" into "long", but that might not work in some instances.

I found some links that might help:
http://gcc.fyxm.net/summit/2003/Port...2064%20bit.pdf

This link specifically says you must use gcc 4 and later, and mentions a few options pertinent to your task.
64-Bit Transition Guide: Compiling 64-Bit Code Using GCC
 

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Bit::Vector::Minimal(3pm)				User Contributed Perl Documentation				 Bit::Vector::Minimal(3pm)

NAME
Bit::Vector::Minimal - Object-oriented wrapper around vec() SYNOPSIS
use Bit::Vector::Minimal; my $vec = Bit::Vector->new(size => 8, width => 1, endianness => "little"); # These are the defaults $vec->set(1); # $vec's internal vector now looks like "00000010" $vec->get(3); # 0 DESCRIPTION
This is a much simplified, lightweight version of Bit::Vector, and wraps Perl's (sometimes confusing) "vec" function in an object-oriented abstraction. METHODS
new Creates a new bit vector. By default, this creates a one-byte vector with 8 one-bit "slots", with bit zero on the right of the bit pattern. These settings can be changed by passing parameters to the constructor: "size" will alter the size in bits of the vector; "width" will alter the width of the slots. The module will die if "width" is not an integer divisor of "size". "endianness" controls whether the zeroth place is on the right or the left of the bit vector. set(POS[, VALUE]) Sets the bit or slot at position "POS" to value "VALUE" or "all bits on" if "VALUE" is not given. get(POS) Returns the bit or slot at position "POS". display Display the vector. For debugging purposes. AUTHOR
Current maintainer: Tony Bowden Original author: Simon Cozens BUGS and QUERIES Please direct all correspondence regarding this module to: bug-Bit-Vector-Minimal@rt.cpan.org SEE ALSO
Bit::Vector COPYRIGHT AND LICENSE
Copyright 2003, 2004 by Kasei This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.12.3 2005-10-04 Bit::Vector::Minimal(3pm)
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