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- uClibc - a Small C Library for Linux
- Erik Andersen <andersen@codepoet.org>
- uClibc (aka µClibc/pronounced yew-see-lib-see) is a size-optimized
- implementation of the standard C library. It is primarily designed
- for developing embedded Linux systems. It is much smaller then the
- GNU C Library, but nearly all applications supported by glibc also
- work perfectly with uClibc. Porting applications from glibc to
- uClibc typically involves just recompiling the source code. uClibc
- even supports shared libraries and threading. It currently runs on
- standard Linux and MMU-less (also known as µClinuxClinux) systems
- with support for ARM, i386, h8300, m68k, mips, mipsel, PowerPC, SH,
- SPARC, and v850 processors.
- For installation instructions, see the file INSTALL.
- This distribution contains a wrapper for gcc and ld that allows you
- to use existing toolchains that were targetted for glibc. See
- extra/gcc-uClibc/ for information.
- uClibc strives to be standards compliant, which means that most
- documentation written for functions in glibc also apply to uClibc
- functions. However, many GNU extensions are not supported because
- they have not been ported, or more importantly, would increase the
- size of uClibc disproportional to the added functionality.
- Additional information (recent releases, FAQ, mailing list, bugs,
- etc.) can be found at http://www.uclibc.org/.
- uClibc may be freely modified distributed under the terms of the
- GNU Library General Public License, which can be found in the
- file COPYING.LIB.
- Please Note:
- There is an unwholesomely huge amount of code out there
- that depends on the presence of GNU libc header files.
- We have GNU libc header files. So we have committed a
- horrible sin in uClibc. We _lie_ and claim to be GNU
- libc in order to force these applications to work as their
- developers intended. This is IMHO, pardonable, since
- these defines are not really intended to check for the
- presence of a particular library, but rather are used to
- define an _interface_. Some programs (such as GNU
- binutils) are especially chummy with glibc, and need this
- behavior disabled by adding CFLAGS+=__FORCE_NOGLIBC
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