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-rw-r--r--sysdeps/unix/configure.in142
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diff --git a/sysdeps/unix/configure.in b/sysdeps/unix/configure.in
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--- a/sysdeps/unix/configure.in
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-sinclude(./aclocal.m4)dnl Autoconf lossage.
-GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
-# Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
-# This file is part of the GNU C Library.
-
-# The GNU C Library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Library General Public License
-# as published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-
-# The GNU C Library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# Library General Public License for more details.
-
-# You should have received a copy of the GNU Library General Public
-# License along with the GNU C Library; see the file COPYING.LIB. If
-# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-# Cambridge, MA 02139, USA.
-
-dnl configure fragment for Unix-based systems. This is processed by Autoconf,
-dnl but we just use the AC_MSG_* macros. This file is sourced by the
-dnl top-level configure script. Note that we use the prefix `unix_' on all
-dnl shell variables here, to avoid conflicting with any variables the
-dnl top-level script might be using.
-
-sysincludedir=/usr/include # XXX
-
-# Find the <syscall.h> file we will be using, or something like it.
-unix_found=
-for unix_dir in $sysnames; do
- if test -r $sysdep_dir/$unix_dir/syscall.h; then
- unix_found=$unix_dir
- break
- fi
-done
-if test $unix_found = stub; then
- # XXX This list of possibilities duplicates the list in Makefile.
- for try in sys.s sys/sys.s sys.S sys/sys.S syscall.h sys/syscall.h; do
- if test -r $sysincludedir/$try; then
- unix_syscall_h=$sysincludedir/$try
- break
- fi
- done
-else
- unix_syscall_h=$sysdep_dir/$unix_dir/syscall.h
-fi
-
-test -n "$unix_syscall_h" && {
-
-# Where to put the .S files we write.
-if test "`pwd`" = "`(cd $srcdir; pwd)`"; then
- unix_generated_dirpfx=sysdeps/unix/
-else
- # We are running in a separate build directory.
- unix_generated_dirpfx=
-fi
-
-# This variable will collect the names of the files we create.
-unix_generated=
-unix_srcs=
-unix_dests=
-
-# These several functions are system calls on Unix systems which have them.
-# The details of these calls are universal enough that if a system's
-# <syscall.h> defines the system call number, we know that the simple
-# system call implementations in unix/common will be sufficient.
-
-for unix_function in \
- dup2 lstat mkdir rmdir readlink symlink rename swapon \
- access select getgroups setgroups \
- getitimer setitimer \
- getdomainname:getdomain=bsd/bsd4.4 \
- setdomainname:setdomain=bsd/bsd4.4 \
- fchdir=bsd/bsd4.4 \
- profil=bsd readv=bsd writev=bsd \
- getpriority setpriority \
- getrlimit setrlimit
-do
-
- # $unix_function => $unix_syscall $unix_srcname
- # CALL CALL CALL
- # CALL/NAME CALL NAME
- unix_srcname=
- unix_srcdir=common
- eval "unix_syscall=`echo $unix_function | \
- sed -e 's@=\(.*\)$@ unix_srcdir=\1@' \
- -e 's@:\(.*\)@ unix_srcname=\1@'`"
- test -z "$unix_srcname" && unix_srcname=$unix_syscall
-
- unix_implementor=none
- for unix_dir in $sysnames; do
- if test -r $sysdep_dir/$unix_dir/${unix_srcname}.c ||
- test -r $sysdep_dir/$unix_dir/${unix_srcname}.S ||
- test -r $sysdep_dir/$unix_dir/${unix_srcname}.s; then
- unix_implementor=$unix_dir
- break
- fi
- done
-
- case $unix_syscall in
- mkdir|rmdir)
- # mkdir and rmdir have implementations in unix/sysv, but
- # the simple syscall versions are preferable if available.
- test $unix_implementor = unix/sysv && unix_implementor=generic
- ;;
- esac
-
- case $unix_implementor in
- none|stub|generic|posix)
- # The chosen implementation of ${unix_syscall} is a boring one.
- # We want to use the unix/common implementation instead iff
- # ${unix_syscall} appears in <syscall.h>.
- AC_MSG_CHECKING(for ${unix_syscall} system call)
-changequote(,)dnl We need to use [ and ] for real now.
- if grep -i "[ _]${unix_syscall}[ ]" $unix_syscall_h >/dev/null
-changequote([,])dnl Back to Autoconf land.
- then
- # It does seem to be present in <syscall.h>.
- AC_MSG_RESULT(yes)
- unix_dests="$unix_dests ${unix_generated_dirpfx}${unix_srcname}.S"
- unix_srcs="$unix_srcs sysdeps/unix/${unix_srcdir}/${unix_srcname}.S"
- unix_generated="$unix_generated $unix_generated_dirpfx${unix_srcname}.S"
- else
- AC_MSG_RESULT(no)
- fi
- ;;
- *) ;;
- esac
-
-done
-
-# Autoconf magic in the top-level configure.in causes config.status to
-# actually make the links.
-libc_link_dests="$libc_link_dests $unix_dests"
-libc_link_sources="$libc_link_sources $unix_srcs"
-
-# Store the list of files we created in config.make; Makefile uses it.
-test -n "$unix_generated" && config_vars="$config_vars
-unix-generated := \$(addprefix \$(objpfx),${unix_generated})"
-
-}