2004-08-04 Roland McGrath <roland@frob.com>
New directory implementing glibc add-on infrastructure for ports maintained separate from the core glibc source tree. * README, configure.in, Makeconfig, Banner, ChangeLog: New files. * configure: New generated file.
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Support for some architectures added on, not maintained in glibc core.
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2004-08-04 Roland McGrath <roland@frob.com>
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New directory implementing glibc add-on infrastructure for
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ports maintained separate from the core glibc source tree.
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* README, configure.in, Makeconfig, Banner, ChangeLog: New files.
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* configure: New generated file.
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# Makeconfig fragment for glibc ports add-on.
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# These rules make sure that sysdeps/CPU/preconfigure changes are noticed.
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# preconfigure fragments can be written by hand, or they can be generated
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# from preconfigure.in by autoconf like sysdeps/.../configure.in files.
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# Figure out the name of this add-on. The ports add-on infrastructure
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# scripts can be copied into separate add-on packages by any name.
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ports-sysdeps = $(..)$(Makeconfig-add-on)/sysdeps
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$(common-objpfx)config.status: $(wildcard $(ports-sysdeps)/*/preconfigure)
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ifneq ($(AUTOCONF),no)
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ifeq ($(with-cvs),yes)
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define autoconf-it-cvs
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test ! -d CVS || cvs $(CVSOPTS) commit -m'Regenerated: autoconf $(ACFLAGS) $<' $@
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endef
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else
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autoconf-it-cvs =
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endif
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define autoconf-it
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@-rm -f $@.new
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$(AUTOCONF) $(ACFLAGS) $< > $@.new
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chmod a-w,a+x $@.new
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mv -f $@.new $@
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$(autoconf-it-cvs)
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endef
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$(..)ports/sysdeps/%/preconfigure: $(..)ports/sysdeps/%/preconfigure.in \
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aclocal.m4
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$(autoconf-it)
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endif # $(AUTOCONF) = no
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This directory is an add-on for the GNU C Library (glibc).
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It provides additional ports to machines and/or operating systems that are
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not maintained in the official glibc source tree.
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The scripts in the top level of this directory provide the infrastructure
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necessary for a glibc add-on. You can make a new add-on containing one or
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more ports by copying configure, configure.in, and Makeconfig into your own
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add-on directory, which you can give any name (it doesn't have to be
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`ports'). You may want to include a README and Banner of your own talking
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about your port's code in particular, rather than the generic ones here.
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The real source code for any ports is found in the sysdeps/ subdirectories.
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These should be exactly what would go into the main libc source tree if you
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were to incorporate it directly. The only exceptions are the files
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sysdeps/*/preconfigure and sysdeps/*/preconfigure.in; these are fragments
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used by this add-on's configure fragment. The purpose of these is to set
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$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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# This file is generated from configure.in by Autoconf. DO NOT EDIT!
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# The configure fragment in this file provides infrastructure for a glibc
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# add-on containing one or more glibc ports. Only these few script files
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# need exist in the top-level source directory of the add-on. The ports
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# themselves are contained entirely within their new sysdeps/ directories.
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# This makes it easy to take these few top-level files plus a new port's
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# additions to the sysdeps tree, and package a small add-on for that port.
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# The same infrastructure scripts work for any number of such glibc ports
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# collected together into a single shared add-on package.
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cpu_frags=`(cd $srcdir/$libc_add_on; echo sysdeps/*/preconfigure)`
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for frag in $cpu_frags; do
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echo "$as_me:$LINENO: result: ports add-on running preconfigure fragment $frag" >&5
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echo "${ECHO_T}ports add-on running preconfigure fragment $frag" >&6
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. $srcdir/$libc_add_on/$frag
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done
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dnl glibc add-on configure.in fragment for a ports add-on.
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# The configure fragment in this file provides infrastructure for a glibc
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# add-on containing one or more glibc ports. Only these few script files
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# need exist in the top-level source directory of the add-on. The ports
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# themselves are contained entirely within their new sysdeps/ directories.
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# This makes it easy to take these few top-level files plus a new port's
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# additions to the sysdeps tree, and package a small add-on for that port.
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# The same infrastructure scripts work for any number of such glibc ports
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# collected together into a single shared add-on package.
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cpu_frags=`(cd $srcdir/$libc_add_on; echo sysdeps/*/preconfigure)`
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for frag in $cpu_frags; do
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AC_MSG_RESULT(ports add-on running preconfigure fragment $frag)
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. $srcdir/$libc_add_on/$frag
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done
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