Embedded C library http://uclibc-ng.org

Eric Andersen e63b3fd32f Adjust configs for updated math lib 23 years ago
debian 0a82a2891b Notes on Build-Depends 23 years ago
extra e63b3fd32f Adjust configs for updated math lib 23 years ago
include 7ce331c01c Totally rework the math library, this time based on the MacOs X 23 years ago
ldso 46db40b0da powerpc/elfinterp.c: Powerpc works now. Major rework; most relocs 23 years ago
libc ee185898f6 Adjust naming for __FORCE_GLIBC__ to __FORCE_GLIBC and add 23 years ago
libcrypt 094983cd14 Force our child libs to link vs libc 23 years ago
libm 648d5f450e Default to building C89 math stuff only. Cleanup some warnings. 23 years ago
libpthread 40f41cdcdb Initial first (lame) pass at making a pthreads library. This 23 years ago
libresolv 094983cd14 Force our child libs to link vs libc 23 years ago
libutil c29aa5a466 Fix a stupid typo... 23 years ago
test 219680fbe3 Fix common C ambiguity. 23 years ago
.cvsignore 1ffc1d5793 Added build-stamp for Debian 23 years ago
COPYING.LIB 64bc641218 Initial revision 24 years ago
Makefile cad937c12d This commit makes large file support actually work (when enabled in 23 years ago
README ee185898f6 Adjust naming for __FORCE_GLIBC__ to __FORCE_GLIBC and add 23 years ago
Rules.mak 04dafe5479 Turn off optimization when debugging 23 years ago
TODO 2d7114f846 Added a few items on my wishlist, removed some stuff that is finished. 23 years ago

README


* Configuration:

cp ./extra/Configs/Config. ./Config

Then edit ./Config for your setup. In particular, modify CROSS and
KERNEL_SOURCE as necessary. You may also want to modify
SHARED_LIB_LOADER_PATH, DEVEL_PREFIX, and SYSTEM_DEVEL_PREFIX depending
on where you want to install the development environment. By default,
the development environment is installed into /usr/-linux-uclibc/.


* Building:

make


* Installing the development environment:

(As root, if necessary,)

make install

This will install the header files, libraries, and the gcc
wrapper into the directories defined in Config.


* Installing the target runtime environment:

(As root, if necessary,)

make PREFIX= install_target

This installs only the files that are necessary to run binaries
compiled against uClibc. Hint: You probably do not want to install
the target runtime environment on your host machine.


* Using uClibc:

To compile programs with uClibc,

export PATH={uClibc DEVEL_PREFIX}/bin:$PATH

and then just ./configure and make as usual.

Note:

You may also want to look at extra/gcc-uclibc/gcc-uclibc.c for
additional information concerning what options and environment
variables the gcc wrapper handles.

Note2:

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
many 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+=-D__FORCE_NOGLIBC