1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
# Local configure fragment for sysdeps/unix/sysv/linux.
# On Linux, the default is to use libio instead of stdio.
test $stdio = default && stdio=libio
# Don't bother trying to generate any glue code to be compatible with the
# existing system library, because we are the only system library.
inhibit_glue=yes
if test -n "$sysheaders"; then
OLD_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
fi
echo $ac_n "checking installed Linux kernel header files""... $ac_c" 1>&6
echo "configure:16: checking installed Linux kernel header files" >&5
if eval "test \"`echo '$''{'libc_cv_linux2010'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.$ac_ext <<EOF
#line 21 "configure"
#include "confdefs.h"
#include <linux/version.h>
#if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < (2 *65536+ 0 *256+ 10) /* 2.0.10 */
eat flaming death
#endif
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
egrep "eat flaming death" >/dev/null 2>&1; then
rm -rf conftest*
libc_cv_linux2010='TOO OLD!'
else
rm -rf conftest*
libc_cv_linux2010='2.0.10 or later'
fi
rm -f conftest*
fi
echo "$ac_t""$libc_cv_linux2010" 1>&6
if test "$libc_cv_linux2010" != '2.0.10 or later'; then
{ echo "configure: error: GNU libc requires kernel header files from
Linux 2.0.10 or later to be installed before configuring.
The kernel header files are found usually in /usr/include/asm and
/usr/include/linux; make sure these directories use files from
Linux 2.0.10 or later. This check uses <linux/version.h>, so
make sure that file was built correctly when installing the kernel header
files. To use kernel headers not from /usr/include/linux, use the
configure option --with-headers." 1>&2; exit 1; }
fi
# If the user gave a minimal version number test whether the available
# kernel headers are young enough. Additionally we have minimal
# kernel versions for some architectures.
case "$machine" in
alpha*)
arch_minimum_kernel=2.1.100
;;
ia64*)
arch_minimum_kernel=2.4.0
;;
hppa*)
arch_minimum_kernel=2.3.99
;;
mips*)
arch_minimum_kernel=2.2.15
;;
sh*)
arch_minimum_kernel=2.3.99
;;
x86_64*)
arch_minimum_kernel=2.4.0
;;
*)
arch_minimum_kernel=2.0.10
;;
esac
if test -n "$minimum_kernel"; then
user_version=$((`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`))
arch_version=$((`echo "$arch_minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`))
if test $user_version -lt $arch_version; then
echo "configure: warning: minimum kernel version reset to $arch_minimum_kernel" 1>&2
minimum_kernel=$arch_minimum_kernel
fi
else
if test $arch_minimum_kernel != '2.0.10'; then
minimum_kernel=$arch_minimum_kernel
fi
fi
if test -n "$minimum_kernel"; then
echo $ac_n "checking for kernel header at least $minimum_kernel""... $ac_c" 1>&6
echo "configure:95: checking for kernel header at least $minimum_kernel" >&5
decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`;
abinum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1,\2,\3/'`;
cat > conftest.$ac_ext <<EOF
#line 99 "configure"
#include "confdefs.h"
#include <linux/version.h>
#if LINUX_VERSION_CODE < $decnum
eat flaming death
#endif
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
egrep "eat flaming death" >/dev/null 2>&1; then
rm -rf conftest*
libc_minimum_kernel='too old!'
else
rm -rf conftest*
libc_minimum_kernel=ok
fi
rm -f conftest*
echo "$ac_t""$libc_minimum_kernel" 1>&6
if test "$libc_minimum_kernel" = ok; then
cat >> confdefs.h <<EOF
#define __LINUX_KERNEL_VERSION $decnum
EOF
cat >> confdefs.h <<EOF
#define __ABI_TAG_VERSION $abinum
EOF
else
{ echo "configure: error: *** The available kernel headers are older than the requested
*** compatible kernel version" 1>&2; exit 1; }
fi
fi
if test -n "$sysheaders"; then
CPPFLAGS=$OLD_CPPFLAGS
fi
# The Linux filesystem standard prescribes where to place "essential"
# files. I.e., when the installation prefix is "/usr" we have to place
# shared library objects and the configuration files on the root partition
# in /lib and /etc.
if test "$prefix" = "/usr" -o "$prefix" = "/usr/"; then
# 64bit libraries on sparc go to /lib64 and not /lib
if test "$machine" = "sparc/sparc64" -o "$machine" = "x86_64"; then
libc_cv_slibdir="/lib64"
if test "$libdir" = '${exec_prefix}/lib'; then
libdir='${exec_prefix}/lib64';
# Locale data can be shared between 32bit and 64bit libraries
libc_cv_localedir='${exec_prefix}/lib/locale'
fi
else
libc_cv_slibdir="/lib"
fi
# Allow the user to override the path with --sysconfdir
if test $sysconfdir = '${prefix}/etc'; then
libc_cv_sysconfdir=/etc
else
libc_cv_sysconfdir=$sysconfdir
fi
libc_cv_rootsbindir="/sbin"
fi
# Under Linux the LinuxThreads add-on should be available.
case $add_ons in
# It is available. Good.
*linuxthreads*)
linuxthreads_missing=
;;
*)
linuxthreads_missing=yes
;;
esac
if test "$linuxthreads_missing"; then
if test $enable_sanity = yes; then
echo "\
*** On GNU/Linux systems it is normal to compile GNU libc with the
*** \`linuxthreads' add-on. Without that, the library will be
*** incompatible with normal GNU/Linux systems.
*** If you really mean to not use this add-on, run configure again
*** using the extra parameter \`--disable-sanity-checks'."
exit 1
else
echo "\
*** WARNING: Are you sure you do not want to use the \`linuxthreads'
*** add-on?"
fi
fi
# One Linux we use ldconfig.
use_ldconfig=yes
# We need some extensions to the `ldd' script.
case "$machine" in
i[3456]86* | m68*)
ldd_rewrite_script=../sysdeps/unix/sysv/linux/ldd-rewrite.sed
;;
ia64*)
ldd_rewrite_script=../sysdeps/unix/sysv/linux/ia64/ldd-rewrite.sed
;;
s390*)
ldd_rewrite_script=../sysdeps/unix/sysv/linux/s390/ldd-rewrite.sed
;;
sparc*)
ldd_rewrite_script=../sysdeps/unix/sysv/linux/sparc/ldd-rewrite.sed
;;
x86_64*)
ldd_rewrite_script=../sysdeps/unix/sysv/linux/x86_64/ldd-rewrite.sed
;;
*)
;;
esac
if test $host = $build; then
# If $prefix/include/{net,scsi} are symlinks, make install will
# clobber what they're linked to (probably a kernel tree).
# test -L ought to work on all Linux boxes.
if test "x$prefix" != xNONE; then
ac_prefix=$prefix
else
ac_prefix=$ac_default_prefix
fi
echo $ac_n "checking for symlinks in ${ac_prefix}/include""... $ac_c" 1>&6
echo "configure:223: checking for symlinks in ${ac_prefix}/include" >&5
ac_message=
if test -L ${ac_prefix}/include/net; then
ac_message="$ac_message
${ac_prefix}/include/net is a symlink"
fi
if test -L ${ac_prefix}/include/scsi; then
ac_message="$ac_message
${ac_prefix}/include/scsi is a symlink"
fi
if test -n "$ac_message"; then
{ echo "configure: error: $ac_message
\`make install' will destroy the target of the link(s).
Delete the links and re-run configure, or better still, move the entire
${ac_prefix}/include directory out of the way." 1>&2; exit 1; }
else
echo "$ac_t""ok" 1>&6
fi
fi
|
