86 lines
2.7 KiB
RPMSpec
86 lines
2.7 KiB
RPMSpec
#
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# spec file for package perl-Math-GMP
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#
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# Copyright (c) 2024 SUSE LLC
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#
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# All modifications and additions to the file contributed by third parties
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# remain the property of their copyright owners, unless otherwise agreed
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# upon. The license for this file, and modifications and additions to the
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# file, is the same license as for the pristine package itself (unless the
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# license for the pristine package is not an Open Source License, in which
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# case the license is the MIT License). An "Open Source License" is a
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# license that conforms to the Open Source Definition (Version 1.9)
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# published by the Open Source Initiative.
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# Please submit bugfixes or comments via https://bugs.opensuse.org/
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#
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%define cpan_name Math-GMP
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Name: perl-Math-GMP
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Version: 2.250.0
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Release: 0
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# 2.25 -> normalize -> 2.250.0
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%define cpan_version 2.25
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License: LGPL-2.1-or-later
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Summary: High speed arbitrary size integer math
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URL: https://metacpan.org/release/%{cpan_name}
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Source0: https://cpan.metacpan.org/authors/id/S/SH/SHLOMIF/%{cpan_name}-%{cpan_version}.tar.gz
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Source1: cpanspec.yml
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Source100: README.md
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BuildRequires: perl
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BuildRequires: perl-macros
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BuildRequires: perl(Alien::GMP) >= 1.80.0
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Provides: perl(Math::GMP) = %{version}
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%undefine __perllib_provides
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%{perl_requires}
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# MANUAL BEGIN
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BuildRequires: gmp-devel
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# MANUAL END
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%description
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Math::GMP was designed to be a drop-in replacement both for Math::BigInt
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and for regular integer arithmetic. Unlike BigInt, though, Math::GMP uses
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the GNU gmp library for all of its calculations, as opposed to straight
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Perl functions. This can result in speed improvements.
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The downside is that this module requires a C compiler to install -- a
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small tradeoff in most cases. Also, this module is not 100% compatible with
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Math::BigInt.
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A Math::GMP object can be used just as a normal numeric scalar would be --
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the module overloads most of the normal arithmetic operators to provide as
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seamless an interface as possible. However, if you need a perfect
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interface, you can do the following:
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use Math::GMP qw(:constant);
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$n = 2 ** (256 * 1024);
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print "n is $n\n";
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This would fail without the ':constant' since Perl would use normal doubles
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to compute the 250,000 bit number, and thereby overflow it into
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meaninglessness (smaller exponents yield less accurate data due to floating
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point rounding).
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%prep
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%autosetup -n %{cpan_name}-%{cpan_version}
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%build
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perl Makefile.PL INSTALLDIRS=vendor OPTIMIZE="%{optflags}"
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%make_build
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%check
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make test
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%install
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%perl_make_install
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%perl_process_packlist
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%perl_gen_filelist
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%files -f %{name}.files
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%doc Changes README.md
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%license COPYING.LIB LICENSE
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%changelog
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