]> andersk Git - openssh.git/blobdiff - configure.in
- Warning was valid - possible race condition on PTYs. Avoided using
[openssh.git] / configure.in
index 2a4a2c7de1952e7095afdd6d164e9c1822cdbc40..e5bdc445c605adca6b5482975653421e695768d1 100644 (file)
@@ -1,64 +1,93 @@
 AC_INIT(ssh.c)
 
 AC_CONFIG_HEADER(config.h)
+AC_CANONICAL_HOST
 
-dnl Checks for programs.
+# C Compiler features
+if test "$GCC" = "yes"; then CFLAGS="$CFLAGS -Wall"; fi
+AC_C_INLINE
+
+# Checks for programs.
 AC_PROG_CC
 AC_PROG_CPP
 AC_PROG_RANLIB
+AC_PROG_INSTALL
 AC_CHECK_PROG(AR, ar, ar)
-if test "$GCC" = "yes"; then CFLAGS="$CFLAGS -Wall"; fi
+AC_PATH_PROG(PERL, perl)
+AC_SUBST(PERL)
 
-dnl Check for OpenSSL/SSLeay directories.
-AC_MSG_CHECKING([for OpenSSL/SSLeay directory])
-for ssldir in /usr /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local $prefix /usr/pkg ; do
-       if test -f "$ssldir/include/openssl/crypto.h"; then
-               AC_DEFINE(HAVE_OPENSSL)
-               GOT_SSL="yes"
-               break
+# Check for some target-specific stuff
+case "$host" in
+*-*-aix*)
+       AFS_LIBS="-lld"
+       AC_DEFINE(BROKEN_GETADDRINFO)
+       ;;
+*-*-hpux10*)
+       if test -z "$GCC"; then
+               CFLAGS="$CFLAGS -Aa"
        fi
-       if test -f "$ssldir/include/ssl/crypto.h"; then
-               AC_DEFINE(HAVE_SSL)
-               GOT_SSL="yes"
-               break
+       CFLAGS="$CFLAGS -D_HPUX_SOURCE"
+       AC_DEFINE(IPADDR_IN_DISPLAY)
+       AC_DEFINE(USE_UTMPX)
+       AC_MSG_CHECKING(for HPUX trusted system password database)
+       if test -f /tcb/files/auth/system/default; then
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_HPUX_TRUSTED_SYSTEM_PW)
+               LIBS="$LIBS -lsec"
+               AC_MSG_WARN([This configuration is untested])
+       else
+               AC_MSG_RESULT(no)
+               AC_DEFINE(DISABLE_SHADOW)
        fi
-done
-if test -z "$GOT_SSL" ; then
-       AC_MSG_ERROR([Could not find SSLeay / OpenSSL libraries, please install])       
-fi
-AC_SUBST(ssldir)
-AC_DEFINE_UNQUOTED(ssldir, "$ssldir")
-if test "$ssldir" != "/usr"; then
-       CFLAGS="$CFLAGS -I$ssldir/include"
-       LIBS="$LIBS -L$ssldir/lib"
-fi
-LIBS="$LIBS -lssl -lcrypto"
-AC_MSG_RESULT($ssldir)
+       MANTYPE='$(CATMAN)'
+       mansubdir=cat
+       ;;
+*-*-irix5*)
+       MANTYPE='$(CATMAN)'
+       no_libsocket=1
+       no_libnsl=1
+       ;;
+*-*-irix6*)
+       MANTYPE='$(CATMAN)'
+       AC_MSG_WARN([*** Irix 6.x is not tested, please report you experiences *** ])
+       no_libsocket=1
+       no_libnsl=1
+       ;;
+*-*-linux*)
+       no_dev_ptmx=1
+       need_pty_removed_on_close=1
+       ;;
+*-*-netbsd*)
+       need_dash_r=1
+       ;;
+*-*-solaris*)
+       need_dash_r=1
+       AC_DEFINE(USE_UTMPX)
+       ;;
+*-*-sysv*)
+       AC_DEFINE(USE_UTMPX)
+       MANTYPE='$(CATMAN)'
+       mansubdir=cat
+       LIBS="$LIBS -lgen -lsocket"
+       ;;
+esac
 
-dnl Check for RSAref library.
-AC_MSG_CHECKING([for RSAref library])
-saved_LIBS="$LIBS"
-LIBS="$saved_LIBS -lRSAglue -lrsaref"
-AC_TRY_LINK([], [],
-[AC_MSG_RESULT(yes); ],
-[AC_MSG_RESULT(no)]; LIBS="$saved_LIBS")
-
-dnl Checks for libraries.
-AC_CHECK_LIB(crypto, CRYPTO_lock, ,AC_MSG_ERROR([*** libcrypto missing - please install first ***]))
+# Checks for libraries.
 AC_CHECK_LIB(z, deflate, ,AC_MSG_ERROR([*** zlib missing - please install first ***]))
 AC_CHECK_LIB(util, login, AC_DEFINE(HAVE_LIBUTIL_LOGIN) LIBS="$LIBS -lutil")
-AC_CHECK_LIB(nsl, yp_match, , )
-AC_CHECK_LIB(socket, main, , )
 
-dnl libdl is needed by PAM on Redhat systems
-AC_CHECK_LIB(dl, dlopen, , )
-AC_CHECK_LIB(pam, pam_authenticate, , )
+if test -z "$no_libsocket" ; then
+       AC_CHECK_LIB(nsl, yp_match, , )
+fi
+if test -z "$no_libnsl" ; then
+       AC_CHECK_LIB(socket, main, , )
+fi
 
-dnl Checks for header files.
-AC_CHECK_HEADERS(pty.h endian.h paths.h lastlog.h shadow.h netgroup.h maillock.h sys/select.h)
+# Checks for header files.
+AC_CHECK_HEADERS(bstring.h endian.h lastlog.h login.h maillock.h netdb.h netgroup.h paths.h poll.h pty.h shadow.h security/pam_appl.h sys/bitypes.h sys/bsdtty.h sys/cdefs.h sys/poll.h sys/select.h sys/stropts.h sys/sysmacros.h sys/time.h sys/ttcompat.h stddef.h util.h utmp.h utmpx.h)
 
-dnl Checks for library functions.
-AC_CHECK_FUNCS(openpty strlcpy mkdtemp arc4random setproctitle setlogin)
+# Checks for library functions.
+AC_CHECK_FUNCS(arc4random bindresvport_af freeaddrinfo gai_strerror getaddrinfo getpagesize getnameinfo innetgr md5_crypt mkdtemp openpty rresvport_af setenv seteuid setlogin setproctitle setreuid snprintf strlcat strlcpy updwtmpx vsnprintf _getpty)
 
 AC_CHECK_FUNC(login, 
        [AC_DEFINE(HAVE_LOGIN)],
@@ -70,47 +99,160 @@ AC_CHECK_FUNC(daemon,
        [AC_CHECK_LIB(bsd, daemon, [LIBS="$LIBS -lbsd"; AC_DEFINE(HAVE_DAEMON)])]
 )
 
-dnl Checks for data types
+AC_ARG_WITH(pam,
+       [  --without-pam           Disable PAM support ],
+       [
+               if test "x$withval" = "xno" ; then
+                       no_pam=1
+                       AC_DEFINE(DISABLE_PAM)
+               fi
+       ]
+)
+if test -z "$no_pam" -a "x$ac_cv_header_security_pam_appl_h" = "xyes" ; then
+       AC_CHECK_LIB(dl, dlopen, , )
+       LIBS="$LIBS -lpam"
+
+       # Check PAM strerror arguments (old PAM)
+       AC_MSG_CHECKING([whether pam_strerror takes only one argument])
+       AC_TRY_COMPILE(
+               [
+                       #include <stdlib.h>
+                       #include <security/pam_appl.h>
+               ], 
+               [(void)pam_strerror((pam_handle_t *)NULL, -1);], 
+               [AC_MSG_RESULT(no)],
+               [
+                       AC_DEFINE(HAVE_OLD_PAM)
+                       AC_MSG_RESULT(yes)
+               ]
+       ) 
+fi
+
+# The big search for OpenSSL
+AC_ARG_WITH(ssl-dir,
+       [  --with-ssl-dir=PATH     Specify path to OpenSSL installation ],
+       [
+               if test "x$withval" != "$xno" ; then
+                       tryssldir=$withval
+               fi
+       ]
+)
+
+saved_LIBS="$LIBS"
+saved_CFLAGS="$CFLAGS"
+if test "x$prefix" != "xNONE" ; then
+       tryssldir="$tryssldir $prefix"
+fi
+AC_MSG_CHECKING([for OpenSSL/SSLeay directory])
+for ssldir in "" $tryssldir /usr /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/pkg /opt /opt/openssl ; do
+       if test ! -z "$ssldir" ; then
+               LIBS="$saved_LIBS -L$ssldir"
+               CFLAGS="$CFLAGS -I$ssldir/include"
+               if test "x$need_dash_r" = "x1" ; then
+                       LIBS="$LIBS -R$ssldir"
+               fi
+       fi
+       LIBS="$LIBS -lcrypto"
+
+       AC_TRY_RUN(
+               [
+                       #include <openssl/rsa.h>
+                       #include <openssl/bn.h>
+                       #include <openssl/sha.h>
+                       int main(void) 
+                       {RSA *key;key=RSA_generate_key(32,3,NULL,NULL);return(key==NULL);}
+               ],
+               [
+                       AC_DEFINE(HAVE_OPENSSL)
+                       found_crypto=1
+                       break;
+               ], []
+       )
+       AC_TRY_RUN(
+               [
+                       #include <ssl/rsa.h>
+                       #include <ssl/bn.h>
+                       #include <ssl/sha.h>
+                       int main(void) 
+                       {RSA *key;key=RSA_generate_key(32,3,NULL,NULL);return(key==NULL);}
+               ],
+               [
+                       AC_DEFINE(HAVE_SSL)
+                       found_crypto=1
+                       break;
+               ], []
+       )
+done
+
+if test -z "$found_crypto" ; then
+       AC_MSG_ERROR([Could not find working SSLeay / OpenSSL libraries, please install])       
+fi
+if test -z "$ssldir" ; then
+       ssldir="(system)"
+else
+       CFLAGS="$CFLAGS -I$ssldir/include"
+       LDFLAGS="$LDFLAGS -L$ssldir/lib"
+       if test "x$need_dash_r" = "x1" ; then
+               LDFLAGS="$LDFLAGS -R$ssldir"
+       fi
+fi
+LIBS="$saved_LIBS -lcrypto"
+AC_MSG_RESULT($ssldir)
+
+# Checks for data types
+AC_CHECK_SIZEOF(char, 1)
 AC_CHECK_SIZEOF(short int, 2)
 AC_CHECK_SIZEOF(int, 4)
 AC_CHECK_SIZEOF(long int, 4)
 AC_CHECK_SIZEOF(long long int, 8)
 
-dnl More checks for data types
-AC_MSG_CHECKING([For quad_t])
-AC_TRY_COMPILE(
-       [#include <sys/types.h>], 
-       [quad_t a; a = 1235;], 
-       [
-               AC_DEFINE(HAVE_QUAD_T)
-               AC_MSG_RESULT(yes)
-       ],
-       [AC_MSG_RESULT(no)]
-) 
-
-AC_MSG_CHECKING([For intXX_t types])
+# More checks for data types
+AC_MSG_CHECKING([for intXX_t types])
 AC_TRY_COMPILE(
        [#include <sys/types.h>], 
        [int16_t a; int32_t b; a = 1235; b = 1235;], 
        [
                AC_DEFINE(HAVE_INTXX_T)
                AC_MSG_RESULT(yes)
+               have_intxx_t=1
        ],
        [AC_MSG_RESULT(no)]
 ) 
 
-AC_MSG_CHECKING([For u_intXX_t types])
+AC_MSG_CHECKING([for u_intXX_t types])
 AC_TRY_COMPILE(
        [#include <sys/types.h>], 
        [u_int16_t c; u_int32_t d; c = 1235; d = 1235;], 
        [
                AC_DEFINE(HAVE_U_INTXX_T)
                AC_MSG_RESULT(yes)
+               have_u_intxx_t=1
        ],
        [AC_MSG_RESULT(no)]
 ) 
 
-AC_MSG_CHECKING([For uintXX_t types])
+if test -z "$have_u_intxx_t" -o -z "$have_intxx_t" -a \
+           "x$ac_cv_header_sys_bitypes_h" = "xyes"
+then
+       AC_MSG_CHECKING([for intXX_t and u_intXX_t types in sys/bitypes.h])
+       AC_TRY_COMPILE(
+               [#include <sys/bitypes.h>], 
+               [
+                       u_int16_t c; u_int32_t d; 
+                       int16_t e; int32_t f;
+                       c = 1235; d = 1235;
+                       e = 1235; f = 1235;
+               ], 
+               [
+                       AC_DEFINE(HAVE_U_INTXX_T)
+                       AC_DEFINE(HAVE_INTXX_T)
+                       AC_MSG_RESULT(yes)
+               ],
+               [AC_MSG_RESULT(no)]
+       ) 
+fi
+
+AC_MSG_CHECKING([for uintXX_t types])
 AC_TRY_COMPILE(
        [#include <sys/types.h>], 
        [uint16_t c; uint32_t d; c = 1235; d = 1235;], 
@@ -121,49 +263,306 @@ AC_TRY_COMPILE(
        [AC_MSG_RESULT(no)]
 ) 
 
-dnl Check whether use wants to disable the external ssh-askpass
-INSTALL_ASKPASS="yes"
-AC_MSG_CHECKING([whether to enable external ssh-askpass support])
-AC_ARG_WITH(askpass,
-       [  --with-askpass=yes/no   Enable external ssh-askpass support (default=yes)],
+AC_MSG_CHECKING([for socklen_t])
+AC_TRY_COMPILE(
        [
-               if test x$withval = xno ; then
-                       INSTALL_ASKPASS="no"
-               else
-                       INSTALL_ASKPASS="yes"
+               #include <sys/types.h>
+               #include <sys/socket.h>
+       ],
+       [socklen_t foo; foo = 1235;],
+       [
+               AC_DEFINE(HAVE_SOCKLEN_T)
+               AC_MSG_RESULT(yes)
+       ],
+       [AC_MSG_RESULT(no)]
+)
+
+AC_MSG_CHECKING([for size_t])
+AC_TRY_COMPILE(
+       [#include <sys/types.h>],
+       [size_t foo; foo = 1235;],
+       [
+               AC_DEFINE(HAVE_SIZE_T)
+               AC_MSG_RESULT(yes)
+       ],
+       [AC_MSG_RESULT(no)]
+)
+
+AC_MSG_CHECKING([for struct sockaddr_storage])
+AC_TRY_COMPILE(
+       [
+               #include <sys/types.h>
+               #include <sys/socket.h>
+       ],
+       [struct sockaddr_storage s;],
+       [
+               AC_DEFINE(HAVE_STRUCT_SOCKADDR_STORAGE)
+               AC_MSG_RESULT(yes)
+       ],
+       [AC_MSG_RESULT(no)]
+)
+
+AC_MSG_CHECKING([for struct sockaddr_in6])
+AC_TRY_COMPILE(
+       [#include <netinet/in.h>],
+       [struct sockaddr_in6 s; s.sin6_family = 0;],
+       [
+               AC_DEFINE(HAVE_STRUCT_SOCKADDR_IN6)
+               AC_MSG_RESULT(yes)
+       ],
+       [AC_MSG_RESULT(no)]
+)
+
+AC_MSG_CHECKING([for struct in6_addr])
+AC_TRY_COMPILE(
+       [#include <netinet/in.h>],
+       [struct in6_addr s; s.s6_addr[0] = 0;],
+       [
+               AC_DEFINE(HAVE_STRUCT_IN6_ADDR)
+               AC_MSG_RESULT(yes)
+       ],
+       [AC_MSG_RESULT(no)]
+)
+
+AC_MSG_CHECKING([for struct addrinfo])
+AC_TRY_COMPILE(
+       [
+               #include <sys/types.h>
+               #include <sys/socket.h>
+               #include <netdb.h>
+       ],
+       [struct addrinfo s; s.ai_flags = AI_PASSIVE;],
+       [
+               AC_DEFINE(HAVE_STRUCT_ADDRINFO)
+               AC_MSG_RESULT(yes)
+       ],
+       [AC_MSG_RESULT(no)]
+)
+
+# Checks for structure members
+AC_MSG_CHECKING([whether utmp.h has ut_host field])
+AC_EGREP_HEADER(ut_host, utmp.h, 
+       [AC_DEFINE(HAVE_HOST_IN_UTMP) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmpx.h has ut_host field])
+AC_EGREP_HEADER(ut_host, utmpx.h, 
+       [AC_DEFINE(HAVE_HOST_IN_UTMPX) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmpx.h has syslen field])
+AC_EGREP_HEADER(syslen, utmpx.h, 
+       [AC_DEFINE(HAVE_SYSLEN_IN_UTMPX) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmp.h has ut_pid field])
+AC_EGREP_HEADER(ut_pid, utmp.h, 
+       [AC_DEFINE(HAVE_PID_IN_UTMP) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmp.h has ut_type field])
+AC_EGREP_HEADER(ut_type, utmp.h, 
+       [AC_DEFINE(HAVE_TYPE_IN_UTMP) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmp.h has ut_tv field])
+AC_EGREP_HEADER(ut_tv, utmp.h, 
+       [AC_DEFINE(HAVE_TV_IN_UTMP) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmp.h has ut_id field])
+AC_EGREP_HEADER(ut_id, utmp.h, 
+       [AC_DEFINE(HAVE_ID_IN_UTMP) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmp.h has ut_addr field])
+AC_EGREP_HEADER(ut_addr, utmp.h, 
+       [AC_DEFINE(HAVE_ADDR_IN_UTMP) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmpx.h has ut_addr field])
+AC_EGREP_HEADER(ut_addr, utmpx.h, 
+       [AC_DEFINE(HAVE_ADDR_IN_UTMPX) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmp.h has ut_addr_v6 field])
+AC_EGREP_HEADER(ut_addr_v6, utmp.h, 
+       [AC_DEFINE(HAVE_ADDR_V6_IN_UTMP) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether utmpx.h has ut_addr_v6 field])
+AC_EGREP_HEADER(ut_addr_v6, utmpx.h, 
+       [AC_DEFINE(HAVE_ADDR_V6_IN_UTMPX) AC_MSG_RESULT(yes); ], 
+       [AC_MSG_RESULT(no)]
+)
+
+AC_MSG_CHECKING([whether struct sockaddr_storage has ss_family field])
+AC_TRY_COMPILE(
+       [
+               #include <sys/types.h>
+               #include <sys/socket.h>
+       ],
+       [struct sockaddr_storage s; s.ss_family = 1;],
+       [
+               AC_DEFINE(HAVE_SS_FAMILY_IN_SS)
+               AC_MSG_RESULT(yes)
+       ],
+       [AC_MSG_RESULT(no)]
+)
+AC_MSG_CHECKING([whether struct sockaddr_storage has __ss_family field])
+AC_TRY_COMPILE(
+       [
+               #include <sys/types.h>
+               #include <sys/socket.h>
+       ],
+       [struct sockaddr_storage s; s.__ss_family = 1;],
+       [
+               AC_DEFINE(HAVE___SS_FAMILY_IN_SS)
+               AC_MSG_RESULT(yes)
+       ],
+       [AC_MSG_RESULT(no)]
+)
+
+AC_MSG_CHECKING([whether libc defines __progname])
+AC_TRY_LINK([], 
+       [extern char *__progname; printf("%s", __progname);], 
+       [
+               AC_DEFINE(HAVE___PROGNAME)
+               AC_MSG_RESULT(yes)
+       ], 
+       [
+               AC_MSG_RESULT(no)
+       ]
+)
+
+# Looking for programs, paths and files
+AC_ARG_WITH(rsh,
+       [  --with-rsh=PATH         Specify path to remote shell program ],
+       [
+               if test "x$withval" != "$xno" ; then
+                       AC_DEFINE_UNQUOTED(RSH_PATH, "$withval")
                fi
+       ],
+       [
+               AC_PATH_PROG(rsh_path, rsh)
        ]
 )
-if test "x$INSTALL_ASKPASS" = "xyes" ; then
-       AC_DEFINE(USE_EXTERNAL_ASKPASS)
-       AC_SUBST(INSTALL_ASKPASS)
-       AC_MSG_RESULT(yes)
-else
-       AC_MSG_RESULT(no)
+
+AC_ARG_WITH(xauth,
+       [  --with-xauth=PATH       Specify path to xauth program ],
+       [
+               if test "x$withval" != "$xno" ; then
+                       AC_DEFINE_UNQUOTED(XAUTH_PATH, "$withval")
+               fi
+       ],
+       [
+               AC_PATH_PROG(xauth_path, xauth)
+               if test ! -z "$xauth_path" -a -x "/usr/openwin/bin/xauth" ; then
+                       xauth_path="/usr/openwin/bin/xauth"
+               fi
+       ]
+)
+
+if test ! -z "$xauth_path" ; then
+       AC_DEFINE_UNQUOTED(XAUTH_PATH, "$xauth_path")
+fi
+if test ! -z "$rsh_path" ; then
+       AC_DEFINE_UNQUOTED(RSH_PATH, "$rsh_path")
 fi
 
-if test "x$INSTALL_ASKPASS" = "xyes" ; then
-       AC_MSG_CHECKING([whether to build GNOME ssh-askpass])
-       dnl Check whether user wants GNOME ssh-askpass
-       AC_ARG_WITH(gnome-askpass,
-               [  --with-gnome-askpass    Build the GNOME passphrase requester (default=no)],
-               [
-                       if test x$withval = xno ; then
-                               GNOME_ASKPASS="";
+# Check for mail directory (last resort if we cannot get it from headers)
+if test ! -z "$MAIL" ; then
+       maildir=`dirname $MAIL`
+       AC_DEFINE_UNQUOTED(MAIL_DIRECTORY, "$maildir")
+fi
+
+# Look for lastlog location
+AC_ARG_WITH(lastlog,
+       [  --with-lastlog=FILE     Location of lastlog file],
+       [
+               if test "x$withval" = "xno" ; then
+                       AC_DEFINE(DISABLE_LASTLOG)
+               else
+                       AC_DEFINE_UNQUOTED(LASTLOG_LOCATION, "$withval")
+               fi
+       ],
+       [
+               AC_MSG_CHECKING([location of lastlog file])
+               for lastlog in /var/log/lastlog /var/adm/lastlog /usr/adm/lastlog  /etc/security/lastlog ; do
+                       if test -f $lastlog ; then
+                               gotlastlog="file"
+                               break
+                       fi
+                       if test -d $lastlog ; then
+                               gotlastlog="dir"
+                               break
+                       fi
+               done
+               if test -z "$gotlastlog" ; then
+                       AC_MSG_RESULT(not found)
+                       nolastlog=1
+               else
+                       if test "x$gotlastlog" = "xdir" ; then
+                               AC_MSG_RESULT(${lastlog}/)
+                               AC_DEFINE(LASTLOG_IS_DIR)
                        else
-                               GNOME_ASKPASS="gnome-ssh-askpass";
+                               AC_MSG_RESULT($lastlog)
+                               AC_DEFINE_UNQUOTED(LASTLOG_LOCATION, "$lastlog")
                        fi
-               ])
-       AC_SUBST(GNOME_ASKPASS)
+               fi      
+       ]
+)
 
-       if test -z "$GNOME_ASKPASS" ; then
-               AC_MSG_RESULT(no)
-       else
-               AC_MSG_RESULT(yes)
+if test ! -z "$nolastlog" ; then
+       AC_MSG_WARN([*** Disabling lastlog support *** ])
+       AC_DEFINE(DISABLE_LASTLOG)
+fi
+
+if test -z "$no_dev_ptmx" ; then
+       AC_CHECK_FILE("/dev/ptmx", 
+               [
+                       AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX)
+                       have_dev_ptmx=1
+               ]
+       )
+fi
+AC_CHECK_FILE("/dev/ptc", 
+       [
+               AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC)
+               have_dev_ptc=1
+       ]
+)
+
+# Some systems (defined in platform-specific code above) automagically remove
+# Unix98 ptys when they are closed
+if test "x$ac_cv_func_openpty" = "xyes" -o "x$have_dev_ptmx" = "x1" -o "x$have_dev_ptc" = "x1" ; then
+       if test "x$need_pty_removed_on_close" = "x1" ; then
+               AC_DEFINE(PTY_REMOVED_ON_CLOSE)
        fi
 fi
 
-dnl Check for user-specified random device
+# Options from here on. Some of these are preset by platform above
+
+# Check whether user wants GNOME ssh-askpass
+AC_MSG_CHECKING([whether to build GNOME ssh-askpass])
+AC_ARG_WITH(gnome-askpass,
+       [  --with-gnome-askpass    Build the GNOME passphrase requester (default=no)],
+       [
+               if test x$withval = xno ; then
+                       GNOME_ASKPASS="";
+               else
+                       GNOME_ASKPASS="gnome-ssh-askpass";
+               fi
+       ])
+AC_SUBST(GNOME_ASKPASS)
+
+if test -z "$GNOME_ASKPASS" ; then
+       AC_MSG_RESULT(no)
+else
+       AC_MSG_RESULT(yes)
+fi
+
+# Check for user-specified random device, otherwise check /dev/urandom
 AC_ARG_WITH(random,
        [  --with-random=FILE      read randomness from FILE (default=/dev/urandom)],
        [
@@ -171,7 +570,7 @@ AC_ARG_WITH(random,
                AC_DEFINE_UNQUOTED(RANDOM_POOL, "$RANDOM_POOL")
        ],
        [
-               dnl Check for random device
+               # Check for random device
                AC_CHECK_FILE("/dev/urandom",
                        [
                                RANDOM_POOL="/dev/urandom"; 
@@ -182,7 +581,7 @@ AC_ARG_WITH(random,
        ]
 )
 
-dnl Check for EGD pool file
+# Check for EGD pool file
 AC_ARG_WITH(egd-pool,
        [  --with-egd-pool=FILE    read randomness from EGD pool FILE (default none)],
        [
@@ -193,94 +592,180 @@ AC_ARG_WITH(egd-pool,
        ]
 )
 
-dnl Make sure we have random number support
+# Make sure we have some random number support
 if test -z "$RANDOM_POOL" -a -z "$EGD_POOL"; then
        AC_MSG_ERROR([No random device found, and no EGD random pool specified])
 fi
 
-dnl Check for ut_host field in utmp
-AC_MSG_CHECKING([whether utmp.h has ut_host field])
-AC_EGREP_HEADER(ut_host, utmp.h, 
-       [AC_DEFINE(HAVE_HOST_IN_UTMP) AC_MSG_RESULT(yes); ], 
-       [AC_MSG_RESULT(no)]
-)
-
-dnl Look for lastlog location
-AC_MSG_CHECKING([location of lastlog file])
-for lastlog in /var/log/lastlog /var/adm/lastlog /etc/security/lastlog ; do
-       if test -f $lastlog ; then
-               gotlastlog="file"
-               break
-       fi
-       if test -d $lastlog ; then
-               gotlastlog="dir"
-               break
-       fi
-done
-if test -z "$gotlastlog" ; then
-       AC_MSG_ERROR([*** Cannot find lastlog ***])
-else
-       if test "x$gotlastlog" = "xdir" ; then
-               AC_DEFINE(LASTLOG_IS_DIR)
-               AC_MSG_ERROR([*** Directory-based lastlogs are not yet supported ***])
-       fi
-       AC_MSG_RESULT($lastlog)
-       AC_DEFINE_UNQUOTED(LASTLOG_LOCATION, "$lastlog")
-fi     
-
-AC_MSG_CHECKING([whether libc defines __progname])
-AC_TRY_LINK([], 
-       [extern char *__progname; printf("%s", __progname);], 
-       [
-               AC_DEFINE(HAVE___PROGNAME)
-               AC_MSG_RESULT(yes)
-       ], 
+AC_ARG_WITH(catman,
+       [  --with-catman=man|cat   Install preformatted manpages[no]],
        [
-               AC_MSG_RESULT(no)
+               MANTYPE='$(CATMAN)'
+               if test x"$withval" != x"yes" ; then
+                  mansubdir=$withval
+               else
+                  mansubdir=cat
+               fi
+       ], [
+               if test -z "$MANTYPE" ; then
+                       MANTYPE='$(TROFFMAN)'
+                       mansubdir=man
+               fi
        ]
 )
+AC_SUBST(MANTYPE)
+AC_SUBST(mansubdir)
 
-dnl Check whether user wants Kerberos support
+# Check whether user wants Kerberos support
 AC_ARG_WITH(kerberos4,
-       [  --with-kerberos4        Enable Kerberos 4 support],
+       [  --with-kerberos4=PATH   Enable Kerberos 4 support],
        [
-               AC_DEFINE(KRB4)
-               LIBS="$LIBS -lkrb"
-               CFLAGS="$CFLAGS -I/usr/include/kerberosIV"
+               if test "x$withval" != "$xno" ; then
+       
+                       if test "x$withval" != "$xyes" ; then
+                               CFLAGS="$CFLAGS -I${withval}/include"
+                               LDFLAGS="$LDFLAGS -L${withval}/lib"
+                       else
+                               if test -d /usr/include/kerberosIV ; then
+                                       CFLAGS="$CFLAGS -I/usr/include/kerberosIV"
+                               fi
+                       fi
+
+                       AC_CHECK_HEADERS(krb.h)
+                       AC_CHECK_LIB(krb, main)
+                       if test "$ac_cv_header_krb_h" != yes; then
+                               AC_MSG_WARN([Cannot find krb.h, build may fail])
+                       fi
+                       if test "$ac_cv_lib_krb_main" != yes; then
+                               AC_MSG_WARN([Cannot find libkrb, build may fail])
+                       fi
+
+                       KLIBS="-lkrb -ldes"
+                       AC_CHECK_LIB(resolv, dn_expand, , )
+                       KRB4=yes
+                       AC_DEFINE(KRB4)
+               fi
        ]
 )
 
-dnl Check whether user wants AFS support
+# Check whether user wants AFS support
 AC_ARG_WITH(afs,
-       [  --with-afs              Enable AFS support],
+       [  --with-afs=PATH         Enable AFS support],
        [
-               AC_DEFINE(AFS)
-               LIBS="$LIBS -lkafs"
+               if test "x$withval" != "$xno" ; then
+
+                       if test "x$withval" != "$xyes" ; then
+                               CFLAGS="$CFLAGS -I${withval}/include"
+                               LFLAGS="$LFLAGS -L${withval}/lib"
+                       fi
+
+                       if test -z "$KRB4" ; then
+                               AC_MSG_WARN([AFS requires Kerberos IV support, build may fail])
+                       fi
+
+                       LIBS="$LIBS -lkafs"
+                       if test ! -z "$AFS_LIBS" ; then
+                               LIBS="$LIBS $AFS_LIBS"
+                       fi
+                       AC_DEFINE(AFS)
+               fi
        ]
 )
+LIBS="$LIBS $KLIBS"
 
-dnl Check whether user wants S/Key support
+# Check whether user wants S/Key support
 AC_ARG_WITH(skey,
        [  --with-skey             Enable S/Key support],
        [
-               AC_DEFINE(SKEY)
-               LIBS="$LIBS -lskey"
+               if test "x$withval" != "$xno" ; then
+                       AC_DEFINE(SKEY)
+                       LIBS="$LIBS -lskey"
+               fi
        ]
 )
 
-dnl Check whether user wants TCP wrappers support
-AC_ARG_WITH(skey,
+# Check whether user wants TCP wrappers support
+AC_ARG_WITH(tcp-wrappers,
        [  --with-tcp-wrappers     Enable tcpwrappers support],
        [
-               AC_DEFINE(LIBWRAP)
-               LIBS="$LIBS -lwrap"
+               if test "x$withval" != "$xno" ; then
+                       AC_DEFINE(LIBWRAP)
+                       LIBS="$LIBS -lwrap"
+               fi
        ]
 )
 
-dnl Check whether to enable MD5 passwords
-AC_ARG_WITH(md5passwords,
+# Check whether to enable MD5 passwords
+AC_ARG_WITH(md5-passwords,
        [  --with-md5-passwords    Enable use of MD5 passwords],
-       [AC_DEFINE(HAVE_MD5_PASSWORDS)]
+       [
+               if test "x$withval" != "$xno" ; then
+                       AC_DEFINE(HAVE_MD5_PASSWORDS)
+               fi
+       ]
+)
+
+# Check whether to enable utmpx support
+AC_ARG_WITH(utmpx,
+       [  --with-utmpx            Enable utmpx support],
+       [
+               if test "x$withval" != "xno" ; then
+                       AC_DEFINE(USE_UTMPX)
+               fi
+       ]
+)
+
+# Whether to disable shadow password support
+AC_ARG_WITH(shadow,
+       [  --without-shadow        Disable shadow password support],
+       [
+               if test "x$withval" = "xno" ; then      
+                       AC_DEFINE(DISABLE_SHADOW)
+               fi
+       ]
+)
+
+# Use ip address instead of hostname in $DISPLAY
+AC_ARG_WITH(ipaddr-display,
+       [  --with-ipaddr-display   Use ip address instead of hostname in \$DISPLAY],
+       [
+               if test "x$withval" = "xno" ; then      
+                       AC_DEFINE(IPADDR_IN_DISPLAY)
+               fi
+       ]
+)
+
+# Whether to mess with the default path
+AC_ARG_WITH(default-path,
+       [  --with-default-path=PATH Specify default \$PATH environment for server],
+       [
+               if test "x$withval" != "xno" ; then     
+                       AC_DEFINE_UNQUOTED(USER_PATH, "$withval")
+               fi
+       ]
+)
+
+# Whether to force IPv4 by default (needed on broken glibc Linux)
+AC_ARG_WITH(ipv4-default,
+       [  --with-ipv4-default     Use IPv4 by connections unless '-6' specified],
+       [
+               if test "x$withval" != "xno" ; then     
+                       AC_DEFINE(IPV4_DEFAULT)
+               fi
+       ]
+)
+
+# Where to place sshd.pid
+piddir=/var/run
+AC_ARG_WITH(pid-dir,
+       [  --with-pid-dir=PATH     Specify location of ssh.pid file],
+       [
+               if test "x$withval" != "xno" ; then     
+                       piddir=$withval
+               fi
+       ]
 )
+AC_DEFINE_UNQUOTED(PIDDIR, "$piddir")
+AC_SUBST(piddir)
 
 AC_OUTPUT(Makefile)
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