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- This directory contains the sources of the GNU C Library.
- See the file "version.h" for what release version you have.
- The GNU C Library is the standard system C library for all GNU systems,
- and is an important part of what makes up a GNU system. It provides the
- system API for all programs written in C and C-compatible languages such
- as C++ and Objective C; the runtime facilities of other programming
- languages use the C library to access the underlying operating system.
- In GNU/Linux systems, the C library works with the Linux kernel to
- implement the operating system behavior seen by user applications.
- In GNU/Hurd systems, it works with a microkernel and Hurd servers.
- The GNU C Library implements much of the POSIX.1 functionality in the
- GNU/Hurd system, using configurations i[4567]86-*-gnu and x86_64-gnu.
- When working with Linux kernels, this version of the GNU C Library
- requires Linux kernel version 3.2 or later.
- Also note that the shared version of the libgcc_s library must be
- installed for the pthread library to work correctly.
- The GNU C Library supports these configurations for using Linux kernels:
- aarch64*-*-linux-gnu
- alpha*-*-linux-gnu
- arc*-*-linux-gnu
- arm-*-linux-gnueabi
- csky-*-linux-gnuabiv2
- hppa-*-linux-gnu
- i[4567]86-*-linux-gnu
- x86_64-*-linux-gnu Can build either x86_64 or x32
- loongarch64-*-linux-gnu Hardware floating point, LE only.
- m68k-*-linux-gnu
- microblaze*-*-linux-gnu
- mips-*-linux-gnu
- mips64-*-linux-gnu
- or1k-*-linux-gnu
- powerpc-*-linux-gnu Hardware or software floating point, BE only.
- powerpc64*-*-linux-gnu Big-endian and little-endian.
- s390-*-linux-gnu
- s390x-*-linux-gnu
- riscv32-*-linux-gnu
- riscv64-*-linux-gnu
- sh[34]-*-linux-gnu
- sparc*-*-linux-gnu
- sparc64*-*-linux-gnu
- If you are interested in doing a port, please contact the glibc
- maintainers; see https://www.gnu.org/software/libc/ for more
- information.
- See the file INSTALL to find out how to configure, build, and install
- the GNU C Library. You might also consider reading the WWW pages for
- the C library at https://www.gnu.org/software/libc/.
- The GNU C Library is (almost) completely documented by the Texinfo manual
- found in the `manual/' subdirectory. The manual is still being updated
- and contains some known errors and omissions; we regret that we do not
- have the resources to work on the manual as much as we would like. For
- corrections to the manual, please file a bug in the `manual' component,
- following the bug-reporting instructions below. Please be sure to check
- the manual in the current development sources to see if your problem has
- already been corrected.
- Please see https://www.gnu.org/software/libc/bugs.html for bug reporting
- information. We are now using the Bugzilla system to track all bug reports.
- This web page gives detailed information on how to report bugs properly.
- The GNU C Library is free software. See the file COPYING.LIB for copying
- conditions, and LICENSES for notices about a few contributions that require
- these additional notices to be distributed. License copyright years may be
- listed using range notation, e.g., 1996-2015, indicating that every year in
- the range, inclusive, is a copyrightable year that would otherwise be listed
- individually.
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