mirror of
https://git.busybox.net/uClibc
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84 lines
2.7 KiB
Plaintext
84 lines
2.7 KiB
Plaintext
SOFTWARE REQUIREMENTS
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Compiling and running uClibc requires Linux kernel header files.
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uClibc will be compiled to match the interfaces available in the
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provided version of the Linux kernel headers. Linux kernel version
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2.0, version 2.2, and version 2.4 are known to work. Other kernel
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versions may work but havn't been tested. Its also helpful to have
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a working version of GNU binutils, and GNU gcc -- using excessively
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old versions of these packages can cause very strange errors that
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are difficult to find and fix.
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CONFIGURING uClibc:
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- Check the Rules.mak file and adjust CROSS to specify your cross-
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compiler if you are cross compiling.
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- Use must have a valid configuration file to compile uClibc. Do not
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skip this step. New configuration options are added in each
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release, and odd problems will turn up if your configuration file
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is not set up as expected. If you want to carry your existing
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configuration to a new version with minimal work, use "make
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oldconfig", which will only ask you for the answers to new
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questions.
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- Available configuration commands are:
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"make menuconfig" Text based color menus, radiolists & dialogs.
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"make oldconfig" Default all questions based on the contents of
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your existing ./.config file.
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"make defconfig" Use defaults for all options.
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"make randconfig" Use random values for all options.
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"make allyesconfig" Set all values to "yes" for all options.
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"make allnoconfig" Set all values to "yes" for all options.
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- uClibc does not have proper dependancy checking (yet) so if you
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change your uClibc configuration, you must current rebuild the
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entire library, by first running 'make clean'.
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COMPILING uClibc:
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- Once you have a valid configuration file, just run 'make' to compile
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uClibc.
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INSTALLING the uClibc development environment:
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- As root, if necessary, run:
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make install
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This will install the header files, libraries, and the gcc wrapper
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into the directories defined in Config.
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INSTALLING the uClibc target runtime environment:
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- As root, if necessary, run:
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make PREFIX=<temporary path> install_target
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This will install only the files that are necessary to run
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binaries compiled against uClibc. Hint: You probably do not want
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to install the target runtime environment into /lib on your host
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machine.
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USING uClibc:
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- To compile programs with uClibc,
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export PATH={uClibc DEVEL_PREFIX}/bin:$PATH
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and then just run './configure' and 'make' as usual.
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Note:
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You may also want to look at extra/gcc-uclibc/gcc-uclibc.c for
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additional information concerning what options and environment
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variables the gcc wrapper handles.
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