Free gnu c library 2.4 software for linux

The GNU Scientific Library (GSL) is a numerical library for C and C++ programmers. It is free software under the GNU General Public License.
GNU Scientific Library provides a wide range of mathematical routines such as random number generators, special functions and least-squares fitting. There are over 1000 functions in total with an extensive test suite.
Installation Instructions:
GSL follows the standard GNU installation procedure. To compile GSL you will need an ANSI C-compiler. After unpacking the distribution the Makefiles can be prepared using the configure command,
./configure
You can then build the library by typing,
make
Both static and shared versions of the libraries will be compiled by default. Compilation of shared libraries can be turned off by specifying the `--disable-shared option to `configure, e.g.
./configure --disable-shared
If you encounter problems building the library try using the above option, because some platforms do not support shared libraries.
For notes about problems with specific platforms and compilers see the next section of this file (below).
An extensive test suite is available. After compiling the library with "make", it can be invoked with "make check" at the top level. The test output should be directed to a file rather than a terminal, with the command,
make check > log 2>&1
to allow any errors to be examined in detail. By default, only test failures are shown. To see the complete output, set the environment variable GSL_TEST_VERBOSE=1.
If you run the tests and get some failures, please see the notes on platform specific problems below. If you find failures that are not mentioned, please report them to bug-gsl@gnu.org.
The library can be installed using the command,
make install
The default installation directory prefix is /usr/local. Consult the "Further Information" section below for instructions on installing the library in another location or changing other default compilation options.
Enhancements:
- This release adds new support for non-symmetric eigensystems, basis splines, and Mathieu functions.
- It has fixes for all bugs reported since the last release.

The Audio File Library provides a uniform and elegant API for accessing a variety of audio file formats, such as AIFF/AIFF-C, WAVE, NeXT/Sun .snd/.au, Berkeley/IRCAM/CARL Sound File, Audio Visual Research, Amiga IFF/8SVX, and NIST SPHERE. Supported compression formats are currently G.711 mu-law and A-law and IMA and MS ADPCM.

Key goals of the Audio File Library are file format transparency and data format transparency. The same calls for opening a file, accessing and manipulating audio metadata (e.g. sample rate, sample format, textual information, MIDI parameters), and reading/writing sample data will work with any supported audio file format. Likewise, the format of the audio data presented to the application need not be tied to the format of the data contained in the file.

The Audio File Library distributed under the GNU Library General Public License.

GNU Libidn is an implementation of the Stringprep, Punycode and IDNA specifications defined by the IETF Internationalized Domain Names (IDN) working group, used for internationalized domain names. The package is available under the GNU Lesser General Public License.
The library contains a generic Stringprep implementation that does Unicode 3.2 NFKC normalization, mapping and prohibitation of characters, and bidirectional character handling. Profiles for iSCSI, Kerberos 5, Nameprep, SASL and XMPP are included. Punycode and ASCII Compatible Encoding (ACE) via IDNA are supported.
The Stringprep API consists of two main functions, one for converting data from the systems native representation into UTF-8, and one function to perform the Stringprep processing. Adding a new Stringprep profile for your application within the API is straightforward.
The Punycode API consists of one encoding function and one decoding function. The IDNA API consists of the ToASCII and ToUnicode functions, as well as an high-level interface for converting entire domain names to and from the ACE encoded form.
The GNU Libidn library is used by, e.g., GNU SASL and Shishi to process user names and passwords. Libidn can be built into GNU Libc to enable a new system-wide getaddrinfo() flag for IDN processing.
Libidn is developed for the GNU/Linux system, but runs on over 20 platforms including most major Unix platforms and Windows, and many kind of devices including iPAQ handhelds and S/390 mainframes. Libidn is written in C and (parts of) the API is accessible from C, C++, Emacs Lisp, Python and Java. An experimental native Java API is also available.
Enhancements:
- Libidn is now considered stable, and is being used in production at many sites world-wide.
- The command-line tools, examples, etc are now licensed under GPL version 3.
- Documentation, translations, and gnulib files have been updated.

GNU libsigsegv library can handle page faults. A page fault occurs when a program tries to access a region of memory that is currently not available.

Catching and handling a page fault is a useful technique for implementing garbage collectors, stack overflow handlers, persistent databases, and distributed shared memory.

ZRTP Protocol Library is an implementation of Phil Zimmermanns ZRTP protocol, created based on and interoperable with Zfone beta 2.

Using this package, together with GNU ccrtp (1.5.0 or later) provides a zrtp implimentation that can be directly embedded into client and server applications, rather than the overhead penalty of using an external proxy such as zphone. The first application to demonstrate this capability is the 0.8.2 release of the Twinkle softphone client.

Please note, this library is licensed under the GNU GPL, version 2 or later, and has been copyright assigned to the Free Software Foundation.

liborphy project is an orphy hardwares data acquisition library for GNU/Linux.
Orphy GTS is a data acquisition hardware from Micrelec that is used in many french high schools.
Its basically a box with analog and digital inputs/output channels, linked to the computer with a serial port. Its mainly used in Physics experimental manipulation, for instance to mesure the tension during a capacitor charging and discharging in a self (electric oscillations).
liborphy is a library that provides functions for easy access to an Orphy (currently, only Orphy GTS model) hardware. It is written in C and distributed under the terms of the GNU LGPL license.
Main features:
- full dialog with OrphyGTS (all commands can be sent)
- functions for doing acquisition on one or more analogic input channels simultaneously easily
- OrphyGTS Text mode and Quick mode are supported
Enhancements:
- new OGTS_StopEA function: stops a running acquisition launched using OGTS_StartEA
- simulation mode: simulates an Orphy device for testing purpose
- packaging: now creates a orphy.pc pkg-config file and uses automake1.6
- timing fix in OGTS_StartEA (time between two acquisitions)

GNU Transport Layer Security Library is a library which implements a secure layer over a reliable transport layer such as TCP/IP. GNU Transport Layer Security Library implements the TLS 1.0 and SSL 3.0 protocols, accompanied with authentication methods such as X.509, OpenPGP, and SRP.
Main features:
- Support for TLS 1.1 and SSL 3.0 protocols
- Support for TLS extensions
- Support for authentication using the SRP protocol
- Support for authentication using both X.509 certificates
- and OpenPGP keys Support for X.509 and OpenPGP certificate handling.
- Supports all the strong encryption algorithms
- Supports compression
- Runs on most Unix platforms
Enhancements:
- Support for Proxy Certificates as per RFC 3820 were added.
- The --generate-proxy option was added to certtool.
- certtool --certificate-info now prints information for Proxy Certificates.
- New APIs were added to set proxy subject names and get or set a proxy cert extension.
- Parsing of pathLenConstraints in BasicConstraints with missing CA was fixed.
- A self-test was added to test for regressions of pathLenConstraint.
- Certtool now prints times in UTC when printing certificate/CRL info.
- Importing of ASCII armored OpenPGP keys was fixed.