moved declarations of general functions from vserver-internal.h into
[util-vserver.git] / util-vserver / configure.ac
1 dnl $Id$
2
3 dnl Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
4 dnl  
5 dnl This program is free software; you can redistribute it and/or modify
6 dnl it under the terms of the GNU General Public License as published by
7 dnl the Free Software Foundation; either version 2, or (at your option)
8 dnl any later version.
9 dnl  
10 dnl This program is distributed in the hope that it will be useful,
11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 dnl GNU General Public License for more details.
14 dnl  
15 dnl You should have received a copy of the GNU General Public License
16 dnl along with this program; if not, write to the Free Software
17 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 dnl  
19 dnl  
20 dnl As a special exception to the GNU General Public License, if you
21 dnl distribute this file as part of a program that contains a configuration
22 dnl script generated by Autoconf, you may include it under the same
23 dnl distribution terms that you use for the rest of that program.
24 dnl  
25
26 AC_PREREQ(2.57)
27 AC_INIT(util-vserver, 0.23.190.1, enrico.scholz@informatik.tu-chemnitz.de)
28 AC_CONFIG_SRCDIR([src/capchroot.c])
29 AC_CONFIG_HEADER([config.h])
30
31 AM_INIT_AUTOMAKE([gnu dist-bzip2 subdir-objects])
32 AM_MAINTAINER_MODE
33
34 AC_SUBST(CVS2CL_TAG, [])
35
36 # Checks for programs.
37 AC_PROG_CXX
38 AC_PROG_CC
39 AC_PROG_INSTALL
40 AC_PROG_LN_S
41 AC_PROG_RANLIB
42 AM_PROG_CC_C_O
43
44 check_paths=$PATH:/sbin:/usr/sbin:/usr/local/sbin
45 AC_PATH_PROGS(AWK,     [awk],     [awk],        [ $check_paths ])
46 AC_PATH_PROGS(GREP,    [grep],    [grep],       [ $check_paths ])
47 AC_PATH_PROGS(IP,      [ip],      [ip],         [ $check_paths ])
48 AC_PATH_PROGS(MOUNT,   [mount],   [/bin/mount], [ $check_paths ])
49 AC_PATH_PROGS(NICE,    [nice],    [nice],       [ $check_paths ])
50 AC_PATH_PROGS(VCONFIG, [vconfig], [vconfig],    [ $check_paths ])
51 AC_PATH_PROGS(WC,      [wc],      [wc],         [ $check_paths ])
52
53 AC_CHECK_PROGS(CVS2CL, [cvs2cl])
54 AM_CONDITIONAL(HAVE_CVS2CL,  [test x"$CVS2CL" != x])
55
56 AC_CHECK_PROGS(RCS2LOG, [rcs2log])
57 AM_CONDITIONAL(HAVE_RCS2LOG,  [test x"$RCS2LOG" != x])
58
59 ENSC_CHECK_CC_FLAG([-std=c99])
60
61 AC_MSG_CHECKING([whether to enable dietlibc])
62 AC_ARG_ENABLE([dietlibc],
63               [AC_HELP_STRING([--disable-dietlibc],
64                               [do not use dietlibc (default: use dietlibc)])],
65               [case "$withval" in
66                   yes)  use_dietlibc=forced;;
67                   no)   use_dietlibc=forced_no;;
68                   *)    AC_MSG_ERROR(['$withval' is not a valid value for --enable-dietlibc]);;
69                esac],
70               [: ${DIET:=diet}
71                which "$DIET" >/dev/null 2>/dev/null && use_dietlibc=detected || use_dietlibc=detected_no])
72
73 case x"$use_dietlibc" in
74     xdetected)
75         AM_CONDITIONAL(USE_DIETLIBC, true)
76         AC_MSG_RESULT([yes (autodetected)])
77         ;;
78     xforced)
79         AM_CONDITIONAL(USE_DIETLIBC, true)
80         AC_MSG_RESULT([yes (forced)])
81         ;;
82     xdetected_no)
83         AM_CONDITIONAL(USE_DIETLIBC, false)
84         AC_MSG_RESULT([no (detected)])
85         ;;
86     xforced_no)
87         AM_CONDITIONAL(USE_DIETLIBC, false)
88         AC_MSG_RESULT([no (forced)])
89         ;;
90     *)
91         AC_MSG_ERROR([internal error, use_dietlibc was "$use_dietlibc"])
92         ;;
93 esac
94
95 AC_ARG_VAR(CC, [The C compiler])
96 AC_MSG_CHECKING([for linux kernel headers])
97 AC_ARG_WITH([kerneldir],
98             [AC_HELP_STRING([--with-kerneldir=DIR],
99                             [assume top-kernelsources in DIR (default: /lib/modules/<current>/build)])],
100             [case "$withval" in
101                 yes|no) AC_MSG_ERROR(['$withval' is not a valid value for kerneldir]);;
102                 *)      kerneldir=$withval;;
103              esac],
104             [kerneldir=
105              for i in /lib/modules/$(uname -r)/build /usr/src/linux /usr; do
106                 test -e $i/include/linux/version.h && { kerneldir=$i; break; }
107              done])
108
109 test "$kerneldir" -a -e $i/include/linux/version.h || {
110         AC_MSG_ERROR([Can not find kernelsources])
111 }
112
113 kernelincludedir=$kerneldir/include
114 AC_SUBST(kernelincludedir)
115 AC_MSG_RESULT($kernelincludedir/linux)
116
117 AC_MSG_CHECKING([for supported APIs])
118 AC_ARG_ENABLE([apis],
119               [AC_HELP_STRING([--enable-apis=APIS],
120                               [enable support for the given apis; possible values are: legacy,compat,ALL (default: ALL)])],
121               [],
122               [supported_apis=ALL])
123
124 test x"$supported_apis" != xALL || supported_apis='legacy,compat'
125 old_IFS=$IFS
126 IFS=,;
127 for i in $supported_apis; do
128         case "$i" in
129                 compat) AC_DEFINE(VC_ENABLE_API_COMPAT, 1, [Enable support for compatibily syscall API]);;
130                 legacy) AC_DEFINE(VC_ENABLE_API_LEGACY, 1, [Enable support for old, /proc parsing API]);;
131                 *)      AC_MSG_ERROR(['$i' is not a supported API]);;
132         esac
133 done
134 IFS=$old_IFS
135 AC_MSG_RESULT([$supported_apis])
136
137 AC_CHECK_FUNCS([sys_virtual_context])
138 AC_CHECK_DECLS(MS_MOVE,,,[#include <linux/fs.h>])
139 AC_CHECK_TYPES(ctx_t,,,[#include <sys/types.h>])
140
141 dnl BIG HACK! Do some autodetection here!
142 AC_DEFINE(UTMP_GID, [22], [The utmp gid-number])
143
144 AC_CONFIG_FILES([util-vserver.spec Makefile distrib/Makefile])
145 AC_OUTPUT