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40 lines
2.2 KiB
Plaintext
40 lines
2.2 KiB
Plaintext
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This directory is an add-on for the GNU C Library (glibc).
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It provides additional ports to machines and/or operating systems that are
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not maintained in the official glibc source tree.
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The scripts in the top level of this directory provide the infrastructure
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necessary for a glibc add-on. You can make a new add-on containing one or
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more ports by copying configure, configure.in, and Makeconfig into your own
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add-on directory, which you can give any name (it doesn't have to be
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`ports'). You may want to include a README and Banner of your own talking
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about your port's code in particular, rather than the generic ones here.
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The real source code for any ports is found in the sysdeps/ subdirectories.
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These should be exactly what would go into the main libc source tree if you
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were to incorporate it directly. The only exceptions are the files
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sysdeps/*/preconfigure and sysdeps/*/preconfigure.in; these are fragments
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used by this add-on's configure fragment. The purpose of these is to set
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$base_machine et al when the main libc configure's defaults are not right
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for some machine. Everything else can and should be done from a normal
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sysdeps/.../configure fragment that is used only when the configuration
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selects that sysdeps subdirectory. Each port that requires some special
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treatment before the sysdeps directory list is calculated, should add a
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sysdeps/CPU/preconfigure file; this can either be written by hand or
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generated by Autoconf from sysdeps/CPU/preconfigure.in, and follow the
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rules for glibc add-on configure fragments. No preconfigure file should do
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anything on an unrelated configuration, so that disparate ports can be put
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into a single add-on without interfering with each other.
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Like all glibc add-ons, the only way to use this is to place this directory
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(just a symlink won't do) inside the top-level glibc source directory.
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Then include the name of this directory (e.g. `ports') when you specify
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`--enable-add-ons=...' to glibc's configure (or use just --enable-add-ons
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to have it try every add-on directory sitting in your source tree).
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If you find problems with the top-level scripts in this add-on, please go
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to http://sources.redhat.com/bugzilla/ and file a report for the glibc
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under the "admin" component.
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$Id$
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