NetBSD/crypto/dist/heimdal/configure.in

751 lines
17 KiB
Plaintext

dnl Process this file with autoconf to produce a configure script.
AC_REVISION($Revision: 1.1.1.3 $)
AC_PREREQ(2.14.-1.1)dnl 2.14a
AC_INIT(heimdal, 0.3e, heimdal-bugs@pdc.kth.se)
AM_CONFIG_HEADER(include/config.h)
dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CC_STDC
AM_INIT_AUTOMAKE(heimdal,0.3e)
AC_PREFIX_DEFAULT(/usr/heimdal)
AC_CANONICAL_HOST
CANONICAL_HOST=$host
AC_SUBST(CANONICAL_HOST)
sunos=no
case "$host" in
*-*-sunos4*)
sunos=40
;;
*-*-solaris2.7)
sunos=57
;;
*-*-solaris2.8)
sunos=58
;;
*-*-solaris2*)
sunos=50
;;
esac
if test "$sunos" != no; then
AC_DEFINE_UNQUOTED(SunOS, $sunos,
[Define to what version of SunOS you are running.])
fi
aix=no
case "$host" in
*-*-aix3*)
aix=3
;;
*-*-aix4*)
aix=4
;;
esac
#test -z "$CFLAGS" && CFLAGS="-g"
AC_OBJEXT
AC_EXEEXT
dnl AC_KRB_PROG_YACC
AC_PROG_YACC
AM_PROG_LEX
AC_PROG_RANLIB
AC_PROG_AWK
AC_KRB_PROG_LN_S
AC_MIPS_ABI
CC="$CC $abi"
libdir="$libdir$abilibdirext"
AC_C___ATTRIBUTE__
AC_ENABLE_SHARED(no)
AC_PROG_LIBTOOL
AC_WFLAGS(-Wall -Wmissing-prototypes -Wpointer-arith -Wbad-function-cast -Wmissing-declarations -Wnested-externs)
rk_DB
dnl AC_ROKEN(10,[/usr/heimdal /usr/athena],[lib/roken],[$(top_builddir)/lib/roken/libroken.la],[-I$(top_builddir)/lib/roken -I$(top_srcdir)/lib/roken])
rk_ROKEN(lib/roken)
LIB_roken="\$(top_builddir)/lib/vers/libvers.la $LIB_roken"
AC_TEST_PACKAGE_NEW(openldap,[#include <ldap.h>],[-lldap -llber],,,OPENLDAP)
if test "$openldap_libdir"; then
LIB_openldap="-R $openldap_libdir $LIB_openldap"
fi
AC_TEST_PACKAGE_NEW(krb4,[#include <krb.h>],-lkrb,-ldes,/usr/athena, KRB4)
LIB_kdb=
if test "$with_krb4" != "no"; then
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $INCLUDE_krb4"
save_LIBS="$LIBS"
LIBS="$LIB_krb4 -ldes $LIBS"
EXTRA_LIB45=lib45.a
AC_SUBST(EXTRA_LIB45)
AC_CACHE_CHECK(for four valued krb_put_int, ac_cv_func_krb_put_int_four,
[AC_TRY_COMPILE([#include <krb.h>],[
char tmp[4];
krb_put_int(17, tmp, 4, sizeof(tmp));],
ac_cv_func_krb_put_int_four=yes,
ac_cv_func_krb_put_int_four=no)
])
if test "$ac_cv_func_krb_put_int_four" = yes; then
AC_DEFINE(HAVE_FOUR_VALUED_KRB_PUT_INT, 1,
[define if krb_put_int takes four arguments.])
fi
AH_BOTTOM([#if defined(HAVE_FOUR_VALUED_KRB_PUT_INT) || !defined(KRB4)
#define KRB_PUT_INT(F, T, L, S) krb_put_int((F), (T), (L), (S))
#else
#define KRB_PUT_INT(F, T, L, S) krb_put_int((F), (T), (S))
#endif
])
AC_CACHE_CHECK(for KRB_VERIFY_SECURE, ac_cv_func_krb_verify_secure,
[AC_TRY_COMPILE([#include <krb.h>],[
int x = KRB_VERIFY_SECURE],
ac_cv_func_krb_verify_secure=yes,
ac_cv_func_krb_verify_secure=no)
])
if test "$ac_cv_func_krb_verify_secure" != yes; then
AC_DEFINE(KRB_VERIFY_SECURE, 1,
[Define to one if your krb.h doesn't])
AC_DEFINE(KRB_VERIFY_SECURE_FAIL, 2,
[Define to two if your krb.h doesn't])
fi
AC_CACHE_CHECK(for KRB_VERIFY_NOT_SECURE,
ac_cv_func_krb_verify_not_secure,
[AC_TRY_COMPILE([#include <krb.h>],[
int x = KRB_VERIFY_NOT_SECURE],
ac_cv_func_krb_verify_not_secure=yes,
ac_cv_func_krb_verify_not_secure=no)
])
if test "$ac_cv_func_krb_verify_not_secure" != yes; then
AC_DEFINE(KRB_VERIFY_NOT_SECURE, 0,
[Define to zero if your krb.h doesn't])
fi
AC_FIND_FUNC(krb_enable_debug)
AC_FIND_FUNC(krb_disable_debug)
AC_FIND_FUNC(krb_get_our_ip_for_realm)
AC_CACHE_CHECK(for krb_mk_req with const arguments,
ac_cv_func_krb_mk_req_const,
[AC_TRY_COMPILE([#include <krb.h>
int krb_mk_req(KTEXT a, const char *s, const char *i,
const char *r, int32_t checksum)
{ return 17; }], [],
ac_cv_func_krb_mk_req_const=yes,
ac_cv_func_krb_mk_req_const=no)
])
if test "$ac_cv_func_krb_mk_req_const" = "yes"; then
AC_DEFINE(KRB_MK_REQ_CONST, 1,
[Define if krb_mk_req takes cons char *])
fi
LIBS="$save_LIBS"
CFLAGS="$save_CFLAGS"
LIB_kdb="-lkdb -lkrb"
if test "$krb4_libdir"; then
LIB_krb4="-R $krb4_libdir $LIB_krb4"
LIB_kdb="-R $krb4_libdir -L$krb4_libdir $LIB_kdb"
fi
fi
AM_CONDITIONAL(KRB4, test "$with_krb4" != "no")
AM_CONDITIONAL(KRB5, true)
AM_CONDITIONAL(do_roken_rename, true)
AC_DEFINE(KRB5, 1, [Enable Kerberos 5 support in applications.])dnl
AC_SUBST(LIB_kdb)dnl
AC_ARG_ENABLE(dce, [ --enable-dce if you want support for DCE/DFS PAG's.])
if test "$enable_dce" = yes; then
AC_DEFINE(DCE, 1, [Define if you want support for DCE/DFS PAG's.])
fi
AM_CONDITIONAL(DCE, test "$enable_dce" = yes)
## XXX quite horrible:
if test -f /etc/ibmcxx.cfg; then
dpagaix_LDADD=`sed -n '/^xlc_r4/,/^$/p' /etc/ibmcxx.cfg | sed -n -e '/libraries/{;s/^[^=]*=\(.*\)/\1/;s/,/ /gp;}'`
dpagaix_CFLAGS=`sed -n '/^xlc_r4/,/^$/p' /etc/ibmcxx.cfg | sed -n -e '/options/{;s/^[^=]*=\(.*\)/\1/;s/-q[^,]*//;s/,/ /gp;}'`
else
dpagaix_CFLAGS="-D_THREAD_SAFE -D_AIX_PTHREADS_D7 -D_AIX32_THREADS=1 -D_AES_SOURCE -D_AIX41 -I/usr/include/dce"
dpagaix_LDADD="-L/usr/lib/threads -ldcelibc_r -ldcepthreads -lpthreads_compat lpthreads -lc_r"
fi
AC_SUBST(dpagaix_CFLAGS)
AC_SUBST(dpagaix_LDADD)
AC_ARG_ENABLE(kaserver,
[ --enable-kaserver if you want the KDC to try to emulate a kaserver])
if test "$enable_kaserver" = yes; then
AC_DEFINE(KASERVER, 1,
[Define if you want to use the KDC as a kaserver.])
if test "$with_krb4" = "no"; then
AC_MSG_ERROR(kaserver requires krb4)
exit 1
fi
fi
AC_ARG_ENABLE(kaserver-db,
[ --enable-kaserver-db if you want support for reading kaserver databases in hprop])
if test "$enable_kaserver_db" = yes; then
AC_DEFINE(KASERVER_DB, 1,
[Define if you want support in hprop for reading kaserver databases])
if test "$with_krb4" = "no"; then
AC_MSG_ERROR(kaserver-db requires krb4)
exit 1
fi
fi
otp=yes
AC_ARG_ENABLE(otp,
[ --disable-otp if you don't want OTP support],
[
if test "$enableval" = "no"; then
otp=no
fi
])
if test "$otp" = "yes"; then
AC_DEFINE(OTP, 1, [Define if you want OTP support in applications.])
LIB_otp='$(top_builddir)/lib/otp/libotp.la'
fi
AC_SUBST(LIB_otp)
AM_CONDITIONAL(OTP, test "$otp" = yes)dnl
AC_CHECK_OSFC2
rk_CHECK_MAN
AC_TEST_PACKAGE_NEW(readline,
[#include <stdio.h>
#include <readline.h>],-lreadline,,, READLINE)
AC_TEST_PACKAGE_NEW(hesiod,[#include <hesiod.h>],-lhesiod,,, HESIOD)
KRB_C_BIGENDIAN
AC_C_INLINE
KRB_AIX
KRB_IRIX
KRB_CHECK_X
AM_CONDITIONAL(HAVE_X, test "$no_x" != yes)
AC_CHECK_XAU
dnl AM_C_PROTOTYPES
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_CHECK_TYPE_EXTRA(ssize_t, int, [#include <unistd.h>])
AC_TYPE_PID_T
AC_TYPE_UID_T
AC_CHECK_TYPE_EXTRA(mode_t, unsigned short, [])
AC_CHECK_TYPE_EXTRA(sig_atomic_t, int, [#include <signal.h>])
AC_HAVE_TYPE([long long])
AC_HEADER_TIME
AC_STRUCT_TM
dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([\
arpa/ftp.h \
arpa/inet.h \
arpa/nameser.h \
arpa/telnet.h \
bind/bitypes.h \
bsdsetjmp.h \
crypt.h \
curses.h \
dbm.h \
dirent.h \
dlfcn.h \
err.h \
errno.h \
fcntl.h \
fnmatch.h \
gdbm/ndbm.h \
grp.h \
inttypes.h \
io.h \
limits.h \
maillock.h \
ndbm.h \
net/if.h \
netdb.h \
netinet/in.h \
netinet/in6.h \
netinet/in6_machtypes.h \
netinet/in6_var.h \
netinet/in_systm.h \
netinet6/in6.h \
netinfo/ni.h \
paths.h \
pthread.h \
pty.h \
pwd.h \
resolv.h \
rpcsvc/dbm.h \
sac.h \
security/pam_modules.h \
sgtty.h \
shadow.h \
siad.h \
signal.h \
stropts.h \
sys/bitypes.h \
sys/category.h \
sys/file.h \
sys/filio.h \
sys/ioccom.h \
sys/ioctl.h \
sys/param.h \
sys/proc.h \
sys/pty.h \
sys/ptyio.h \
sys/ptyvar.h \
sys/resource.h \
sys/select.h \
sys/socket.h \
sys/sockio.h \
sys/stat.h \
sys/str_tty.h \
sys/stream.h \
sys/stropts.h \
sys/strtty.h \
sys/syscall.h \
sys/sysctl.h \
sys/termio.h \
sys/time.h \
sys/timeb.h \
sys/times.h \
sys/tty.h \
sys/types.h \
sys/uio.h \
sys/un.h \
sys/utsname.h \
sys/wait.h \
syslog.h \
term.h \
termio.h \
termios.h \
time.h \
tmpdir.h \
udb.h \
unistd.h \
userconf.h \
usersec.h \
util.h \
utmp.h \
utmpx.h \
])
CHECK_NETINET_IP_AND_TCP
AC_ARG_ENABLE(netinfo,
[ --enable-netinfo enable netinfo for configuration lookup])
if test "$ac_cv_header_netinfo_ni_h" = yes -a "$enable_netinfo" = yes; then
AC_DEFINE(HAVE_NETINFO, 1,
[Define if you want to use Netinfo instead of krb5.conf.])
fi
AM_CONDITIONAL(have_err_h, test "$ac_cv_header_err_h" = yes)
AM_CONDITIONAL(have_fnmatch_h, test "$ac_cv_header_fnmatch_h" = yes)
AC_KRB_IPV6
dnl Checks for libraries.
AC_FIND_FUNC(socket, socket)
AC_FIND_FUNC(gethostbyname, nsl)
AC_FIND_FUNC(syslog, syslog)
AC_FIND_FUNC_NO_LIBS(logwtmp, util)
AC_FIND_FUNC_NO_LIBS(tgetent, termcap ncurses curses)
AC_FIND_FUNC(gethostbyname2, inet6 ip6)
AC_FIND_FUNC(res_search, resolv,
[
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_NAMESER_H
#include <arpa/nameser.h>
#endif
#ifdef HAVE_RESOLV_H
#include <resolv.h>
#endif
],
[0,0,0,0,0])
AC_FIND_FUNC(dn_expand, resolv,
[
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_NAMESER_H
#include <arpa/nameser.h>
#endif
#ifdef HAVE_RESOLV_H
#include <resolv.h>
#endif
],
[0,0,0,0,0])
dnl Checks for library functions.
AC_BROKEN_SNPRINTF
AC_BROKEN_VSNPRINTF
AC_CHECK_FUNCS([ \
_getpty \
_scrsize \
fcntl \
gettimeofday \
getuid \
grantpt \
mktime \
ptsname \
rand \
random \
revoke \
select \
setitimer \
setpcred \
setpgid \
setproctitle \
setregid \
setresgid \
setresuid \
setreuid \
setsid \
setutent \
sigaction \
strstr \
timegm \
ttyname \
ttyslot \
umask \
unlockpt \
vhangup \
yp_get_default_domain \
])
KRB_CAPABILITIES
AC_CHECK_GETPWNAM_R_POSIX
AC_FIND_FUNC_NO_LIBS(getsockopt,,
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif],
[0,0,0,0,0])
AC_FIND_FUNC_NO_LIBS(setsockopt,,
[#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif],
[0,0,0,0,0])
dnl Cray stuff
AC_CHECK_FUNCS(getudbnam setlim)
rk_RETSIGTYPE
rk_BROKEN_REALLOC
dnl AC_KRB_FUNC_GETCWD_BROKEN
dnl
dnl Check for fields in struct utmp
dnl
AC_HAVE_STRUCT_FIELD(struct utmp, ut_addr, [#include <utmp.h>])
AC_HAVE_STRUCT_FIELD(struct utmp, ut_host, [#include <utmp.h>])
AC_HAVE_STRUCT_FIELD(struct utmp, ut_id, [#include <utmp.h>])
AC_HAVE_STRUCT_FIELD(struct utmp, ut_pid, [#include <utmp.h>])
AC_HAVE_STRUCT_FIELD(struct utmp, ut_type, [#include <utmp.h>])
AC_HAVE_STRUCT_FIELD(struct utmp, ut_user, [#include <utmp.h>])
AC_HAVE_STRUCT_FIELD(struct utmpx, ut_exit, [#include <utmpx.h>])
AC_HAVE_STRUCT_FIELD(struct utmpx, ut_syslen, [#include <utmpx.h>])
dnl
dnl Check for fields in struct tm
dnl
AC_HAVE_STRUCT_FIELD(struct tm, tm_gmtoff, [#include <time.h>])
AC_HAVE_STRUCT_FIELD(struct tm, tm_zone, [#include <time.h>])
dnl
dnl or do we have a variable `timezone' ?
dnl
rk_CHECK_VAR(timezone, [#include <time.h>])
AC_HAVE_TYPE([sa_family_t],[#include <sys/socket.h>])
AC_HAVE_TYPE([socklen_t],[#include <sys/socket.h>])
AC_HAVE_TYPE([struct sockaddr], [#include <sys/socket.h>])
AC_HAVE_TYPE([struct sockaddr_storage], [#include <sys/socket.h>])
AC_HAVE_TYPE([struct addrinfo], [#include <netdb.h>])
dnl
dnl Check for struct winsize
dnl
AC_KRB_STRUCT_WINSIZE
dnl
dnl Check for struct spwd
dnl
AC_KRB_STRUCT_SPWD
dnl
dnl Check for sa_len in struct sockaddr
dnl
AC_HAVE_STRUCT_FIELD(struct sockaddr, sa_len, [#include <sys/types.h>
#include <sys/socket.h>])
AC_GROK_TYPES([int8_t int16_t int32_t int64_t \
u_int8_t u_int16_t u_int32_t u_int64_t \
uint8_t uint16_t uint32_t uint64_t])
dnl
dnl crypto functions tests
dnl
AC_CHECK_HEADERS([ \
openssl/md4.h \
openssl/md5.h \
openssl/sha.h \
openssl/des.h \
openssl/rc4.h \
])
AC_FIND_FUNC_NO_LIBS2(MD4_Init, crypto des, [], [], [], [$LIB_krb4])
AC_FIND_FUNC_NO_LIBS2(MD5_Init, crypto des, [], [], [], [$LIB_krb4])
AC_FIND_FUNC_NO_LIBS2(SHA1_Init, crypto des, [], [], [], [$LIB_krb4])
AC_FIND_FUNC_NO_LIBS2(des_cbc_encrypt, crypto des, [], [], [], [$LIB_krb4])
AC_FIND_FUNC_NO_LIBS2(RC4, crypto des, [], [], [], [$LIB_krb4])
if test "$ac_cv_func_des_cbc_encrypt" = "yes" -a \
"$ac_cv_func_MD4_Init" = "yes" -a \
"$ac_cv_func_MD5_Init" = "yes" -a \
"$ac_cv_func_SHA1_Init" = "yes" -a \
"$ac_cv_func_RC4" = "yes"; then
DIR_des=''
LIB_des="-R $krb4_libdir -L$krb4_libdir $ac_cv_funclib_MD4_Init"
LIB_des_appl="$LIB_des"
else
DIR_des='des'
LIB_des='$(top_builddir)/lib/des/libdes.la'
LIB_des_appl="-ldes"
fi
AC_SUBST(DIR_des)
AC_SUBST(LIB_des)
AC_SUBST(LIB_des_appl)
KRB_READLINE
dnl telnet muck --------------------------------------------------
AC_DEFINE(AUTHENTICATION, 1,
[Define if you want authentication support in telnet.])dnl
AC_DEFINE(ENCRYPTION, 1,
[Define if you want encryption support in telnet.])dnl
AC_DEFINE(DES_ENCRYPTION, 1,
[Define if you want to use DES encryption in telnet.])dnl
AC_DEFINE(DIAGNOSTICS, 1,
[Define this to enable diagnostics in telnet.])dnl
AC_DEFINE(OLD_ENVIRON, 1,
[Define this to enable old environment option in telnet.])dnl
if false; then
AC_DEFINE(ENV_HACK, 1,
[Define this if you want support for broken ENV_{VAR,VAL} telnets.])
fi
# Simple test for streamspty, based on the existance of getmsg(), alas
# this breaks on SunOS4 which have streams but BSD-like ptys
#
# And also something wierd has happend with dec-osf1, fallback to bsd-ptys
AC_CHECK_FUNC(getmsg)
if test "$ac_cv_func_getmsg" = "yes"; then
AC_CACHE_CHECK(for working getmsg, ac_cv_func_getmsg_work,
AC_TRY_RUN(
[
#include <stdio.h>
#include <errno.h>
int main()
{
int ret;
ret = getmsg(open("/dev/null", 0), NULL, NULL, NULL);
if(ret < 0 && errno == ENOSYS)
return 1;
return 0;
}
], ac_cv_func_getmsg_work=yes, ac_cv_func_getmsg_work=no,
ac_cv_func_getmsg_work=no))
test "$ac_cv_func_getmsg_work" = "yes" &&
AC_DEFINE(HAVE_GETMSG, 1, [Define if you have a working getmsg.])
fi
if test "$ac_cv_func_getmsg_work" = yes; then
AC_MSG_CHECKING(for streamspty)
case "$host" in
*-*-aix3*|*-*-sunos4*|*-*-osf*|*-*-hpux1[[01]]*)
krb_cv_sys_streamspty=no
;;
*)
krb_cv_sys_streamspty=yes
;;
esac
AC_MSG_RESULT($krb_cv_sys_streamspty)
fi
if test "$krb_cv_sys_streamspty" = yes; then
AC_DEFINE(STREAMSPTY, 1, [Define if you have streams ptys.])
fi
AC_AUTH_MODULES
dnl This is done by AC_OUTPUT but we need the result here.
test "x$prefix" = xNONE && prefix=$ac_default_prefix
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
for i in bin lib libexec sbin; do
i=${i}dir
foo=`echo $i | tr 'xindiscernible' 'XINDISCERNIBLE'`
x="\$${i}"
eval y="$x"
while test "x$y" != "x$x"; do
x="$y"
eval y="$x"
done
AC_DEFINE_UNQUOTED($foo,"$x")
done
AH_BOTTOM([#undef BINDIR
#undef LIBDIR
#undef LIBEXECDIR
#undef SBINDIR])
if false; then
# hack to shut up automake
LIBOBJS="$LIBOBJS make-print-version.o"
fi
LTLIBOBJS=`echo "$LIBOBJS" | sed 's/\.o/\.lo/g'`
AC_SUBST(LTLIBOBJS)
AC_CONFIG_FILES(Makefile \
include/Makefile \
include/kadm5/Makefile \
lib/Makefile \
lib/45/Makefile \
lib/auth/Makefile \
lib/auth/afskauthlib/Makefile \
lib/auth/pam/Makefile \
lib/auth/sia/Makefile \
lib/asn1/Makefile \
lib/com_err/Makefile \
lib/des/Makefile \
lib/editline/Makefile \
lib/gssapi/Makefile \
lib/hdb/Makefile \
lib/kadm5/Makefile \
lib/kafs/Makefile \
lib/kdfs/Makefile \
lib/krb5/Makefile \
lib/otp/Makefile \
lib/roken/Makefile \
lib/sl/Makefile \
lib/vers/Makefile \
kuser/Makefile \
kpasswd/Makefile \
kadmin/Makefile \
admin/Makefile \
kdc/Makefile \
appl/Makefile \
appl/afsutil/Makefile \
appl/ftp/Makefile \
appl/ftp/common/Makefile \
appl/ftp/ftp/Makefile \
appl/ftp/ftpd/Makefile \
appl/kx/Makefile \
appl/login/Makefile \
appl/otp/Makefile \
appl/popper/Makefile \
appl/push/Makefile \
appl/rsh/Makefile \
appl/rcp/Makefile \
appl/su/Makefile \
appl/xnlock/Makefile \
appl/telnet/Makefile \
appl/telnet/libtelnet/Makefile \
appl/telnet/telnet/Makefile \
appl/telnet/telnetd/Makefile \
appl/test/Makefile \
appl/kf/Makefile \
appl/dceutils/Makefile \
doc/Makefile \
tools/Makefile \
)
AC_OUTPUT
dnl
dnl This is the release version name-number[beta]
dnl
HEIMDALVERSION="$PACKAGE-$VERSION"
cat > include/newversion.h.in <<EOF
const char *heimdal_long_version = "@(#)\$Version: $HEIMDALVERSION by @USER@ on @HOST@ ($host) @DATE@ \$";
const char *heimdal_version = "$HEIMDALVERSION";
EOF
if test -f include/version.h && cmp -s include/newversion.h.in include/version.h.in; then
echo "include/version.h is unchanged"
rm -f include/newversion.h.in
else
echo "creating include/version.h"
User=${USER-${LOGNAME}}
Host=`(hostname || uname -n || echo unknown) 2>/dev/null | sed 1q`
Date=`date`
mv -f include/newversion.h.in include/version.h.in
sed -e "s/@USER@/$User/" -e "s/@HOST@/$Host/" -e "s/@DATE@/$Date/" include/version.h.in > include/version.h
fi