source: trunk/third/nmh/configure.in @ 19073

dnl
dnl configure.in -- autoconf template for nmh
dnl
dnl $Id: configure.in,v 1.4 2003-03-23 01:16:24 ghudson Exp $
dnl

AC_INIT(h/nmh.h)
AC_CONFIG_HEADER(config.h)

dnl What version of nmh are we building?
VERSION=`sed -e 's/nmh-//' ${srcdir}/VERSION`
echo "configuring for nmh-$VERSION"
AC_SUBST(VERSION)dnl

dnl -------------------------
dnl CHECK COMMAND LINE OPTION
dnl -------------------------
dnl What method of posting should post use?
undefine([mts])dnl
AC_ARG_WITH(mts,
[  --with-mts=MTS          specify the mail transport agent])

if test x$with_mts = xsmtp; then
  MTS="smtp"
  MTSLIB="mts/smtp/libsmtp.a"
  AC_DEFINE(SMTPMTS)dnl
elif test x$with_mts = xsendmail; then
  MTS="sendmail"
  MTSLIB="mts/sendmail/libsend.a"
  AC_DEFINE(SENDMTS)dnl
else
  MTS="smtp"
  MTSLIB="mts/smtp/libsmtp.a"
  AC_DEFINE(SMTPMTS)dnl
fi

AC_SUBST(MTS)
AC_SUBST(MTSLIB)

dnl What should be the default editor?
undefine([editor])dnl
AC_ARG_WITH(editor,
[  --with-editor=EDITOR    specify the default editor])

if test -n "$with_editor"; then
  editorpath="$with_editor"
fi

dnl What should be the default pager?
undefine([pager])dnl
AC_ARG_WITH(pager,
[  --with-pager=PAGER      specify the default pager])

if test -n "$with_pager"; then
  pagerpath="$with_pager"
fi

dnl Do you want mhe support?
undefine([nmh-mhe])dnl
AC_ARG_ENABLE(nmh-mhe,
[  --enable-nmh-mhe        enable mhe support (DEFAULT)])

dnl mhe support is on by default, so define it unless
dnl explicitly disabled.
if test x$enable_nmh_mhe != xno; then
  AC_DEFINE(MHE)dnl
fi

dnl Do you want client-side support for pop
undefine([nmh-pop])dnl
AC_ARG_ENABLE(nmh-pop,
[  --enable-nmh-pop        enable client-side support for pop])
if test x$enable_nmh_pop = xyes; then
  AC_DEFINE(POP)dnl
  POPLIB=popsbr.o
  POPSED='/^%nmhbeginpop%/d;/^%nmhendpop%/d'
else
  POPSED='/^%nmhbeginpop%/,/^%nmhendpop%/d'
fi
AC_SUBST(POPLIB)dnl
AC_SUBST(POPSED)dnl

dnl Do you want client-side support for kpop
AC_ARG_WITH(krb4,
[  --with-krb4=PREFIX      specify location of Kerberos V4 for kpop support])
if test x$with_krb4 != x -a x$with_krb4 != xno; then
  AC_DEFINE(KPOP)dnl
  AC_DEFINE(KPOP_PRINCIPAL, "pop")dnl
fi

dnl Do you want support for hesiod
AC_ARG_WITH(hesiod,
[  --with-hesiod=PREFIX    specify location of Hesiod])
if test x$with_hesiod != x -a x$with_hesiod != xno; then
  AC_DEFINE(HESIOD)dnl
fi

dnl Do you want to debug nmh?
undefine([nmh-debug])dnl
AC_ARG_ENABLE(nmh-debug,
[  --enable-nmh-debug      enable nmh code debugging])

dnl ----------------------------------------------------
dnl Default location is /usr/local/nmh/{bin,etc,lib,man}
dnl ----------------------------------------------------
AC_PREFIX_DEFAULT(/usr/local/nmh)

dnl ------------------
dnl CHECK THE COMPILER
dnl ------------------
dnl We want these before the checks,
dnl so the checks can modify their values.
test -z "$CFLAGS" && CFLAGS= auto_cflags=1
if test x$enable_nmh_debug = xyes; then
  test -z "$LDFLAGS" && LDFLAGS=-g
fi

AC_PROG_CC

dnl if the user hasn't specified CFLAGS, then
dnl   if compiler is gcc, then
dnl     use -O2 and some warning flags
dnl   else use -O
if test -n "$auto_cflags"; then
  if test x$enable_nmh_debug = xyes; then
    if test -n "$GCC"; then
      test -z "$CFLAGS" && CFLAGS="-Wall -g" || CFLAGS="$CFLAGS -Wall -g"
    else
      test -z "$CFLAGS" && CFLAGS=-g || CFLAGS="$CFLAGS -g"
    fi
  else
    test -z "$LDFLAGS" && LDFLAGS=-s
    if test -n "$GCC"; then
      test -z "$CFLAGS" && CFLAGS=-O2 || CFLAGS="$CFLAGS -O2"
    else
      test -z "$CFLAGS" && CFLAGS=-O  || CFLAGS="$CFLAGS -O"
    fi
  fi
fi

AC_C_CONST              dnl Does compiler support `const'.

dnl ------------------
dnl CHECK FOR PROGRAMS
dnl ------------------
AC_PROG_MAKE_SET        dnl Does make define $MAKE
AC_PROG_INSTALL         dnl Check for BSD compatible `install'
AC_PROG_RANLIB          dnl Check for `ranlib'
AC_PROG_AWK             dnl Check for mawk,gawk,nawk, then awk
AC_PROG_LEX             dnl Check for lex/flex

dnl Check for lorder and tsort commands
AC_CHECK_PROG(LORDER, lorder, lorder, no)dnl
AC_CHECK_PROG(TSORT, tsort, tsort, no)dnl

dnl If either doesn't exist, replace them with echo and cat
if test x$ac_cv_prog_LORDER != xlorder -o x$ac_cv_prog_TSORT != xtsort; then
  LORDER=echo
  TSORT=cat
  AC_SUBST(LORDER)dnl
  AC_SUBST(TSORT)dnl
fi

dnl Look for `sendmail'
pathtmp=/usr/lib:/usr/sbin:/usr/etc:/usr/ucblib:/usr/bin:/bin
AC_PATH_PROG(sendmailpath, sendmail, no, [$pathtmp])

dnl Look for `more'
pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
AC_PATH_PROG(morepath, more, no, [$pathtmp])

dnl If pager is not specified yet,
dnl then use `more' as the default.
if test -z "$pagerpath"; then
  pagerpath="$morepath"
fi
AC_SUBST(pagerpath)dnl

dnl Look for `vi'
pathtmp=/usr/bin:/bin:/usr/ucb:/usr/local/bin
AC_PATH_PROG(vipath, vi, no, [$pathtmp])

dnl If editor is not specified yet,
dnl then use `vi' as the default.
if test -z "$editorpath"; then
  editorpath="$vipath"
fi
AC_SUBST(editorpath)dnl

dnl Check for broken vi
AC_CACHE_CHECK(for broken vi, nmh_cv_attvibug,
[if echo 'r /nonexist-file
q' | ex > /dev/null 2>&1
then
        nmh_cv_attvibug=no
else
        nmh_cv_attvibug=yes
fi])
 
if test "$nmh_cv_attvibug" = yes; then
  AC_DEFINE(ATTVIBUG)
fi

dnl ---------------
dnl FIND MAIL SPOOL
dnl ---------------
AC_CACHE_CHECK(where mail spool is located, nmh_cv_mailspool,
[for mailspool in /var/mail        dnl
                  /var/spool/mail  dnl
                  /usr/spool/mail  dnl
                  /dev/null;       dnl Just in case we fall through
do
  test -d $mailspool && break
done
nmh_cv_mailspool=$mailspool
])
mailspool=$nmh_cv_mailspool
AC_SUBST(mailspool)dnl

dnl ------------------
dnl CHECK HEADER FILES
dnl ------------------
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_HEADER_TIME
AC_HEADER_SYS_WAIT
AC_HEADER_STAT
AC_CHECK_HEADERS(string.h memory.h stdlib.h unistd.h errno.h fcntl.h \
                 limits.h crypt.h termcap.h termio.h termios.h locale.h \
                 sys/param.h sys/time.h sys/utsname.h arpa/inet.h \
                 arpa/ftp.h ndbm.h db.h)

AC_CACHE_CHECK(POSIX termios, nmh_cv_sys_posix_termios,
[AC_TRY_LINK([#include <sys/types.h>
#include <unistd.h>
#include <termios.h>],
[/* SunOS 4.0.3 has termios.h but not the library calls.  */
tcgetattr(0, 0);],
  nmh_cv_sys_posix_termios=yes, nmh_cv_sys_posix_termios=no)])
 
if test $nmh_cv_sys_posix_termios = yes; then
  AC_CACHE_CHECK(TIOCGWINSZ in termios.h,
  nmh_cv_header_termios_h_tiocgwinsz,
  [AC_TRY_LINK([#include <sys/types.h>
#include <termios.h>],
  [int x = TIOCGWINSZ;],
  nmh_cv_header_termios_h_tiocgwinsz=yes,
  nmh_cv_header_termios_h_tiocgwinsz=no)])
else
  nmh_cv_header_termios_h_tiocgwinsz=no
fi
 
if test $nmh_cv_header_termios_h_tiocgwinsz = no; then
  AC_CACHE_CHECK(TIOCGWINSZ in sys/ioctl.h,
  nmh_cv_header_sys_ioctl_h_tiocgwinsz,
  [AC_TRY_LINK([#include <sys/types.h>
#include <sys/ioctl.h>],
  [int x = TIOCGWINSZ;],
  nmh_cv_header_sys_ioctl_h_tiocgwinsz=yes,
  nmh_cv_header_sys_ioctl_h_tiocgwinsz=no)])
  if test $nmh_cv_header_sys_ioctl_h_tiocgwinsz = yes; then
    AC_DEFINE(GWINSZ_IN_SYS_IOCTL)
  fi
fi
 
AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM))

dnl ---------------
dnl CHECK FUNCTIONS
dnl ---------------
AC_FUNC_VFORK
AC_CHECK_FUNCS(waitpid wait3 sigaction sigprocmask sigblock sigsetmask \
               sighold sigrelse writev lstat uname tzset killpg \
               sigsetjmp)

AC_REPLACE_FUNCS(snprintf strerror strdup)

dnl -------------------
dnl CHECK FOR LIBRARIES
dnl -------------------
dnl Checks for network libraries (nsl, socket)
AC_CHECK_NETLIBS

dnl Check for bug in libraries such that ruserpass
dnl needs to be linked as _ruserpass.
AC_CHECK_RUSERPASS

termcap_curses_order="termcap curses ncurses"
for lib in $termcap_curses_order; do
  AC_CHECK_LIB(${lib}, tgetent, [TERMLIB="-l$lib"; break])
done
AC_SUBST(TERMLIB)dnl

dnl --------------
dnl CHECK FOR NDBM
dnl --------------
dnl Checks for ndbm
AC_CHECK_FUNC(dbm_open, ,
  AC_CHECK_LIB(ndbm, dbm_open, ,
    AC_CHECK_LIB(dbm, dbm_open, ,
      AC_CHECK_LIB(db, __db_ndbm_open))))

dnl ----------------
dnl CHECK FOR HESIOD
dnl ----------------
if test x$with_hesiod != x -a x$with_hesiod != xno; then
  if test x$with_hesiod != xyes; then
    HESIOD_INCLUDES="-I$with_hesiod/include"
    HESIOD_LIBS="-L$with_hesiod/lib"
  fi
  AC_CHECK_FUNC(res_send, ,
    AC_CHECK_LIB(resolv, res_send))
  AC_CHECK_LIB(hesiod, hes_resolve, [HESIOD_LIBS="$HESIOD_LIBS -lhesiod"],
    [AC_MSG_ERROR(Hesiod library not found)], $HESIOD_LIBS)
fi
AC_SUBST(HESIOD_INCLUDES)dnl
AC_SUBST(HESIOD_LIBS)dnl

dnl ----------------------------------
dnl CHECK FOR KRB4 (Kerberos4 support)
dnl ----------------------------------
if test x$with_krb4 != x -a x$with_krb4 != xno; then
  if test x$with_krb4 != xyes; then
    KRB4_INCLUDES="-I$with_krb4/include"
    if test -d "$with_krb4/include/kerberosIV"; then
      KRB4_INCLUDES="$KRB4_INCLUDES -I$with_krb4/include/kerberosIV"
    fi
    KRB4_LIBS="-L$with_krb4/lib"
  elif test -d /usr/include/kerberosIV; then
    KRB4_INCLUDES="-I/usr/include/kerberosIV"
  fi
  AC_CHECK_LIB(krb4, krb_rd_req,
    [KRB4_LIBS="$KRB4_LIBS -lkrb4 -ldes425 -lkrb5 -lk5crypto -lcom_err"],
    [AC_CHECK_LIB(krb, krb_rd_req,
      [KRB4_LIBS="-lkrb -ldes"],
      [AC_MSG_ERROR(Kerberos 4 libraries not found)],
      $KRB4_LIBS -ldes)],
    $KRB4_LIBS -ldes425 -lkrb5 -lk5crypto -lcom_err)
fi
AC_SUBST(KRB4_INCLUDES)dnl
AC_SUBST(KRB4_LIBS)dnl

dnl ---------------------
dnl CHECK TERMCAP LIBRARY
dnl ---------------------

dnl Add the termcap library, so that the following configure
dnl tests will find it when it tries to link test programs.
nmh_save_LIBS="$LIBS"
LIBS="$TERMLIB $LIBS"

dnl Checks for external variable ospeed in the termcap library.
AC_CACHE_CHECK(if an include file defines ospeed,
nmh_cv_decl_ospeed_include_defines,
[AC_TRY_LINK(
[#include <sys/types.h>
#if HAVE_TERMIOS_H
#include <termios.h>
#endif
#if HAVE_TERMCAP_H
#include <termcap.h>
#endif], [ospeed = 0;],
nmh_cv_decl_ospeed_include_defines=yes,
nmh_cv_decl_ospeed_include_defines=no)])
 
if test $nmh_cv_decl_ospeed_include_defines = no; then
  AC_CACHE_CHECK(if you must define ospeed,
  nmh_cv_decl_ospeed_must_define,
  [AC_TRY_LINK( ,[extern short ospeed; ospeed = 0;],
  nmh_cv_decl_ospeed_must_define=yes,
  nmh_cv_decl_ospeed_must_define=no)])
fi
 
if test $nmh_cv_decl_ospeed_include_defines = yes; then
  AC_DEFINE(HAVE_OSPEED)
elif test $nmh_cv_decl_ospeed_must_define = yes; then
  AC_DEFINE(HAVE_OSPEED)
  AC_DEFINE(MUST_DEFINE_OSPEED)
fi

dnl dnl Checks if tgetent accepts NULL and will
dnl dnl allocate its own termcap buffer.
dnl AC_CACHE_CHECK(if tgetent accepts NULL,
dnl nmh_cv_func_tgetent_accepts_null,
dnl [AC_TRY_RUN([main(){int i = tgetent((char*)0,"vt100");exit(!i || i == -1);}],
dnl   nmh_cv_func_tgetent_accepts_null=yes,
dnl   nmh_cv_func_tgetent_accepts_null=no,
dnl   nmh_cv_func_tgetent_accepts_null=no)])
dnl if test $nmh_cv_func_tgetent_accepts_null = yes; then
dnl   AC_DEFINE(TGETENT_ACCEPTS_NULL)
dnl fi

dnl Now put the libraries back to what it was before we
dnl starting checking the termcap library.
LIBS="$nmh_save_LIBS"

dnl --------------
dnl CHECK TYPEDEFS
dnl --------------
AC_TYPE_SIGNAL
AC_TYPE_PID_T
AC_TYPE_OFF_T
AC_TYPE_UID_T
AC_TYPE_MODE_T
AC_TYPE_SIZE_T

dnl Check for sigset_t.  Currently I'm looking in
dnl <sys/types.h> and <signal.h>.  Others might need
dnl to be added.
AC_CACHE_CHECK(for sigset_t, nmh_cv_type_sigset_t,
[AC_TRY_COMPILE(
[#include <sys/types.h>
#include <signal.h>], [sigset_t tempsigset;],
  nmh_cv_type_sigset_t=yes, nmh_cv_type_sigset_t=no)])
if test $nmh_cv_type_sigset_t = no; then
  AC_DEFINE(sigset_t, unsigned int)
fi

dnl ----------------
dnl CHECK STRUCTURES
dnl ----------------
AC_STRUCT_ST_BLKSIZE

AC_CACHE_CHECK(for tm_gmtoff in struct tm, nmh_cv_struct_tm_gmtoff,
[AC_TRY_COMPILE(
[#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef TM_IN_SYS_TIME
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif],
[struct tm temptm; temptm.tm_gmtoff = 0;],
  nmh_cv_struct_tm_gmtoff=yes, nmh_cv_struct_tm_gmtoff=no)])
if test $nmh_cv_struct_tm_gmtoff = yes; then
  AC_DEFINE(HAVE_TM_GMTOFF)
fi

dnl -------------
dnl CHECK SIGNALS
dnl -------------
dnl What style of signal do you have (POSIX, BSD, or SYSV)?
AC_MSG_CHECKING(what style of signals to use)
if test $ac_cv_func_sigaction = yes -a $ac_cv_func_sigprocmask = yes; then
  signals_style=POSIX_SIGNALS
  AC_DEFINE(POSIX_SIGNALS)
  AC_DEFINE(RELIABLE_SIGNALS)
elif test $ac_cv_func_sigblock = yes -a $ac_cv_func_sigsetmask = yes; then
  signals_style=BSD_SIGNALS
  AC_DEFINE(BSD_SIGNALS)
  AC_DEFINE(RELIABLE_SIGNALS)
elif test $ac_cv_func_sighold = yes -a $ac_cv_func_sigrelse = yes; then
  signals_style=SYSV_SIGNALS
  AC_DEFINE(SYSV_SIGNALS)
else
  signals_style=NO_SIGNAL_BLOCKING
  AC_DEFINE(NO_SIGNAL_BLOCKING)
fi

AC_MSG_RESULT($signals_style)

dnl Where is <signal.h> located?  Needed as input for signames.awk
AC_CACHE_CHECK(where signal.h is located, nmh_cv_path_signal_h,
[for SIGNAL_H in /usr/include/bsd/sys/signal.h  dnl Next
                 /usr/include/asm/signal.h      dnl Linux 1.3.0 and above
                 /usr/include/asm/signum.h      dnl some versions of Linux/Alpha
                 /usr/include/linux/signal.h    dnl Linux up to 1.2.11
                 /usr/include/sys/signal.h      dnl Almost everybody else
                 /dev/null;                     dnl Just in case we fall through
do
  test -f $SIGNAL_H && \
  grep '#[      ]*define[       ][      ]*SIG[0-9A-Z]*[         ]*[0-9][0-9]*' $SIGNAL_H > /dev/null && \
  break
done
nmh_cv_path_signal_h=$SIGNAL_H
])
SIGNAL_H=$nmh_cv_path_signal_h
AC_SUBST(SIGNAL_H)dnl

dnl ----------------
dnl OUTPUT MAKEFILES
dnl ----------------
AC_OUTPUT(Makefile config/Makefile h/Makefile sbr/Makefile uip/Makefile \
          zotnet/Makefile zotnet/mts/Makefile zotnet/tws/Makefile \
          zotnet/mf/Makefile zotnet/bboards/Makefile mts/Makefile \
          mts/smtp/Makefile mts/sendmail/Makefile mts/mmdf/Makefile \
          etc/Makefile man/Makefile, \
          [test -z "$CONFIG_HEADERS" || echo > stamp-h])

eval "nmhbin=${bindir}";         eval "nmhbin2=${nmhbin}"
eval "nmhsysconf=${sysconfdir}"; eval "nmhsysconf2=${nmhsysconf}"
eval "nmhlib=${libdir}";         eval "nmhlib2=${nmhlib}"
eval "nmhman=${mandir}"

echo "
nmh configuration
-----------------
nmh version               : ${VERSION}
compiler                  : ${CC}
compiler flags            : ${CFLAGS}
linker flags              : ${LDFLAGS}
source code location      : ${srcdir}
binary install path       : ${nmhbin2}
libary install path       : ${nmhlib2}
config files install path : ${nmhsysconf2}
man page install path     : ${nmhman}
transport system          : ${MTS}
default editor            : ${editorpath}
default pager             : ${pagerpath}"
echo ""