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Commit | Line | Data |
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cb8a6dbd | 1 | # This file is generated from configure.ac by Autoconf. DO NOT EDIT! |
f65fd747 UD |
2 | # Local configure fragment for sysdeps/unix/sysv/linux. |
3 | ||
14a44a69 | 4 | if test -n "$sysheaders"; then |
c1ed883f GK |
5 | OLD_CPPFLAGS=$CPPFLAGS |
6 | CPPFLAGS="$CPPFLAGS $SYSINCLUDES" | |
14a44a69 | 7 | fi |
46086bc8 | 8 | |
e9433893 | 9 | { $as_echo "$as_me:${as_lineno-$LINENO}: checking installed Linux kernel header files" >&5 |
7967983f | 10 | $as_echo_n "checking installed Linux kernel header files... " >&6; } |
5b4ecd3f | 11 | if ${libc_cv_linux320+:} false; then : |
7967983f | 12 | $as_echo_n "(cached) " >&6 |
f65fd747 | 13 | else |
e9433893 | 14 | cat confdefs.h - <<_ACEOF >conftest.$ac_ext |
fc32835a | 15 | /* end confdefs.h. */ |
f65fd747 | 16 | #include <linux/version.h> |
5b4ecd3f | 17 | #if !defined LINUX_VERSION_CODE || LINUX_VERSION_CODE < (3 *65536+ 2 *256+ 0) /* 3.2.0 */ |
c1f5acd4 | 18 | # error kernel headers missing or too old |
f65fd747 | 19 | #endif |
c1f5acd4 RM |
20 | int |
21 | main () | |
22 | { | |
23 | ||
24 | ; | |
25 | return 0; | |
26 | } | |
8dd8681f | 27 | _ACEOF |
c1f5acd4 | 28 | if ac_fn_c_try_compile "$LINENO"; then : |
5b4ecd3f | 29 | libc_cv_linux320='3.2.0 or later' |
c1f5acd4 | 30 | else |
5b4ecd3f | 31 | libc_cv_linux320='missing or too old!' |
564210fe | 32 | fi |
c1f5acd4 | 33 | rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext |
564210fe | 34 | fi |
5b4ecd3f JM |
35 | { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_linux320" >&5 |
36 | $as_echo "$libc_cv_linux320" >&6; } | |
37 | if test "$libc_cv_linux320" != '3.2.0 or later'; then | |
e9433893 | 38 | as_fn_error $? "GNU libc requires kernel header files from |
5b4ecd3f | 39 | Linux 3.2.0 or later to be installed before configuring. |
8dd8681f UD |
40 | The kernel header files are found usually in /usr/include/asm and |
41 | /usr/include/linux; make sure these directories use files from | |
5b4ecd3f | 42 | Linux 3.2.0 or later. This check uses <linux/version.h>, so |
8dd8681f UD |
43 | make sure that file was built correctly when installing the kernel header |
44 | files. To use kernel headers not from /usr/include/linux, use the | |
e9433893 | 45 | configure option --with-headers." "$LINENO" 5 |
14a44a69 | 46 | fi |
958f238f UD |
47 | |
48 | # If the user gave a minimal version number test whether the available | |
003a02c6 | 49 | # kernel headers are young enough. Additionally we have minimal |
ffbbbee1 RM |
50 | # kernel versions for some architectures. If a previous configure fragment |
51 | # set arch_minimum_kernel already, let that override our defaults here. | |
52 | # Note that we presume such a fragment has set libc_cv_gcc_unwind_find_fde | |
53 | # if appropriate too. | |
5b4ecd3f | 54 | test -n "$arch_minimum_kernel" || arch_minimum_kernel=3.2.0 |
003a02c6 | 55 | if test -n "$minimum_kernel"; then |
8dd8681f | 56 | |
48d0c5d8 UD |
57 | user_version=$((`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`)) |
58 | arch_version=$((`echo "$arch_minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`)) | |
8dd8681f | 59 | |
48d0c5d8 | 60 | if test $user_version -lt $arch_version; then |
e9433893 | 61 | { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&5 |
7967983f | 62 | $as_echo "$as_me: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&2;} |
003a02c6 UD |
63 | minimum_kernel=$arch_minimum_kernel |
64 | fi | |
65 | else | |
37f1abd4 | 66 | minimum_kernel=$arch_minimum_kernel |
003a02c6 UD |
67 | fi |
68 | ||
37f1abd4 | 69 | { $as_echo "$as_me:${as_lineno-$LINENO}: checking for kernel header at least $minimum_kernel" >&5 |
7967983f | 70 | $as_echo_n "checking for kernel header at least $minimum_kernel... " >&6; } |
37f1abd4 JM |
71 | decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`; |
72 | abinum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1,\2,\3/'`; | |
73 | cat confdefs.h - <<_ACEOF >conftest.$ac_ext | |
fc32835a | 74 | /* end confdefs.h. */ |
958f238f | 75 | #include <linux/version.h> |
958f238f | 76 | #if LINUX_VERSION_CODE < $decnum |
c1f5acd4 | 77 | # error kernel headers too old |
958f238f | 78 | #endif |
c1f5acd4 RM |
79 | int |
80 | main () | |
81 | { | |
82 | ||
83 | ; | |
84 | return 0; | |
85 | } | |
8dd8681f | 86 | _ACEOF |
c1f5acd4 | 87 | if ac_fn_c_try_compile "$LINENO"; then : |
0ea554bf | 88 | libc_minimum_kernel=ok |
c1f5acd4 RM |
89 | else |
90 | libc_minimum_kernel='too old!' | |
0ea554bf | 91 | fi |
c1f5acd4 | 92 | rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext |
37f1abd4 | 93 | { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_minimum_kernel" >&5 |
7967983f | 94 | $as_echo "$libc_minimum_kernel" >&6; } |
37f1abd4 JM |
95 | if test "$libc_minimum_kernel" = ok; then |
96 | cat >>confdefs.h <<_ACEOF | |
958f238f | 97 | #define __LINUX_KERNEL_VERSION $decnum |
8dd8681f | 98 | _ACEOF |
a986484f | 99 | |
37f1abd4 | 100 | cat >>confdefs.h <<_ACEOF |
a986484f | 101 | #define __ABI_TAG_VERSION $abinum |
8dd8681f | 102 | _ACEOF |
958f238f | 103 | |
37f1abd4 JM |
104 | else |
105 | as_fn_error $? "*** The available kernel headers are older than the requested | |
e9433893 | 106 | *** compatible kernel version" "$LINENO" 5 |
958f238f UD |
107 | fi |
108 | ||
14a44a69 | 109 | if test -n "$sysheaders"; then |
c1ed883f | 110 | CPPFLAGS=$OLD_CPPFLAGS |
564210fe | 111 | fi |
c6645251 | 112 | |
43ac1905 AJ |
113 | if test "$prefix" = "/usr/local" -o "$prefix" = "/usr/local/" -o "$prefix" = "NONE"; then |
114 | if test $enable_sanity = yes; then | |
115 | echo "\ | |
116 | *** On GNU/Linux systems the GNU C Library should not be installed into | |
117 | *** /usr/local since this might make your system totally unusable. | |
118 | *** We strongly advise to use a different prefix. For details read the FAQ. | |
79c38d7f | 119 | *** If you really mean to do this, run configure again using the extra |
43ac1905 AJ |
120 | *** parameter \`--disable-sanity-checks'." |
121 | exit 1 | |
122 | else | |
123 | echo "\ | |
124 | *** WARNING: Do you really want to install the GNU C Library into /usr/local? | |
125 | *** This might make your system totally unusable, for details read the FAQ." | |
126 | fi | |
127 | fi | |
128 | ||
129 | ||
b43b13ac UD |
130 | # One Linux we use ldconfig. |
131 | use_ldconfig=yes | |
cb343854 | 132 | |
eeabe877 UD |
133 | if test $host = $build; then |
134 | # If $prefix/include/{net,scsi} are symlinks, make install will | |
135 | # clobber what they're linked to (probably a kernel tree). | |
136 | # test -L ought to work on all Linux boxes. | |
137 | if test "x$prefix" != xNONE; then | |
138 | ac_prefix=$prefix | |
139 | else | |
140 | ac_prefix=$ac_default_prefix | |
141 | fi | |
e9433893 | 142 | { $as_echo "$as_me:${as_lineno-$LINENO}: checking for symlinks in ${ac_prefix}/include" >&5 |
7967983f | 143 | $as_echo_n "checking for symlinks in ${ac_prefix}/include... " >&6; } |
fcb7e0a5 | 144 | ac_message= |
eeabe877 | 145 | if test -L ${ac_prefix}/include/net; then |
fcb7e0a5 UD |
146 | ac_message="$ac_message |
147 | ${ac_prefix}/include/net is a symlink" | |
eeabe877 UD |
148 | fi |
149 | if test -L ${ac_prefix}/include/scsi; then | |
fcb7e0a5 | 150 | ac_message="$ac_message |
eeabe877 UD |
151 | ${ac_prefix}/include/scsi is a symlink" |
152 | fi | |
fcb7e0a5 | 153 | if test -n "$ac_message"; then |
e9433893 | 154 | as_fn_error $? "$ac_message |
8dd8681f UD |
155 | \`make install' will destroy the target of the link(s). |
156 | Delete the links and re-run configure, or better still, move the entire | |
e9433893 | 157 | ${ac_prefix}/include directory out of the way." "$LINENO" 5 |
eeabe877 | 158 | else |
e9433893 | 159 | { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5 |
7967983f | 160 | $as_echo "ok" >&6; } |
eeabe877 | 161 | fi |
0fea0021 | 162 | fi |
ce6e047f UD |
163 | |
164 | # We have inlined syscalls. | |
e9433893 | 165 | $as_echo "#define HAVE_INLINED_SYSCALLS 1" >>confdefs.h |
ce6e047f | 166 |