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authorMatthias Andree <matthias.andree@gmx.de>2021-11-20 10:16:13 +0100
committerMatthias Andree <matthias.andree@gmx.de>2021-11-20 10:16:13 +0100
commite59ba016e1de5ef401cd54eefd809858a27c4cde (patch)
treea6a85177a34e6e8f008dd92eb73ed2f48c0873b6 /README.git
parent22a5ee3208ffb4d8ec41973122da22b45bb4b9e6 (diff)
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dnl Autoconfigure input file for fetchmail
dnl Eric S. Raymond <esr@thyrsus.com>
dnl
dnl Process this file with autoconf to produce a configure script.
dnl

AC_INIT(fetchmail.h)		dnl A distinctive file to look for in srcdir. 
AC_CONFIG_HEADER(config.h)

dnl We want these before the checks, so the checks can modify their values.
test -z "$CFLAGS" && CFLAGS="-O" AC_SUBST(CFLAGS)
test -z "$LDFLAGS" && LDFLAGS=-s AC_SUBST(LDFLAGS)

AC_CANONICAL_HOST
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_CPP			dnl Later checks need this.
AC_PROG_CC_C_O
AC_AIX
AC_ISC_POSIX
AC_MINIX
AC_HEADER_STDC
AC_TYPE_SIZE_T
AC_TYPE_PID_T
AC_TYPE_SIGNAL
AC_CHECK_HEADERS(unistd.h termios.h termio.h sgtty.h stdarg.h alloca.h sys/itimer.h fcntl.h sys/fcntl.h memory.h sys/wait.h)

AC_C_CONST			dnl getopt needs this.

AC_PROG_LEX
AC_PROG_YACC
AC_SUBST(CPFLAGS)
AC_SUBST(CEFLAGS)
AC_SUBST(LDEFLAGS)
AC_SUBST(LIBOBJS)
AC_SUBST(POMAKE)

PACKAGE=`sed -n '/PACKAGE *= *\(.*\)/s//\1/p' <$srcdir/Makefile.in`
AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
AC_SUBST(PACKAGE)

VERSION=`sed -n '/VERSION *= *\(.*\)/s//\1/p' <$srcdir/Makefile.in`
AC_DEFINE_UNQUOTED(VERSION, "$VERSION")
AC_SUBST(VERSION)

# Check for LynxOS special case: -lbsd needed (at least on 2.3.0) and -s
# not working.
if test `uname` = "LynxOS" 
then
  echo "Adding -lbsd to standard libraries"
  LIBS="$LIBS -lbsd"
  LDFLAGS=""
  if test `uname -r` = "2.5.0"
  then
    echo "Prepending standard include path to gcc flags"
    CPFLAGS="-I/usr/include"
  fi
fi

# i18n
# Arnaldo Carvalho de Melo <acme@conectiva.com.br>
# Sat Nov  7 15:39:03 EDT 1998

ALL_LINGUAS="pt_BR es pl"

AM_GNU_GETTEXT

# end i18n

# Under sysV68, socket and friends are provided by the C library.
# -linet does not provide socket, but causes multiple definition
# errors at link-time.  It is thus better to only use the C library.
# So don't add -linet to the link list unless it's necessary
AC_CHECK_FUNC(socket,
    AC_MSG_RESULT(using libc's socket),
    AC_CHECK_LIB(socket,socket)
    AC_CHECK_LIB(inet,socket))

# If gettext isn't in the C library, maybe there's a -lintl.
AC_CHECK_FUNC(gettext,
    AC_MSG_RESULT(using libc's gettext),
    AC_CHECK_LIB(intl,gettext))

# The condition in this test copes with the presence of inet_addr in libc6.
AC_CHECK_FUNC(inet_addr,
    AC_MSG_RESULT(using libc's inet_addr),
    AC_CHECK_LIB(nsl,inet_addr))

dnl Port hack for Interactive UNIX System V/386 Release 3.2
AC_CHECK_LIB(cposix, strchr,
		[EXTRADEFS="$EXTRADEFS -D_SYSV3"
		LIBS="$LIBS -lcposix"])

AC_CHECK_FUNC(strstr, AC_DEFINE(HAVE_STRSTR), 
              [EXTRASRC="$EXTRASRC \$(srcdir)/strstr.c"
               EXTRAOBJ="$EXTRAOBJ strstr.o"])

AC_CHECK_FUNC(strcasecmp, AC_DEFINE(HAVE_STRCASECMP), 
              [EXTRASRC="$EXTRASRC \$(srcdir)/strcasecmp.c"
               EXTRAOBJ="$EXTRAOBJ strcasecmp.o"])
             
AC_CHECK_FUNC(memmove, AC_DEFINE(HAVE_MEMMOVE), 
              [EXTRASRC="$EXTRASRC \$(srcdir)/memmove.c"
               EXTRAOBJ="$EXTRAOBJ memmove.o"])
             
AC_CHECK_FUNC(getopt_long, AC_DEFINE(HAVE_GETOPTLONG),
              [EXTRASRC="$EXTRASRC \$(srcdir)/getopt.c \$(srcdir)/getopt1.c"
               EXTRAOBJ="$EXTRAOBJ getopt.o getopt1.o"])

AC_FUNC_VPRINTF
AC_FUNC_ALLOCA
if test -n "$ALLOCA" 
then
  EXTRASRC="$EXTRASRC \$(srcdir)/alloca.c"
  EXTRAOBJ="$EXTRAOBJ alloca.o"
fi

dnl AC_CHECK_FUNC calls that might hack the Makefile must precede
dnl the following AC_SUBSTs

AC_SUBST(EXTRADEFS)
AC_SUBST(EXTRASRC)
AC_SUBST(EXTRAOBJ)

AC_CHECK_FUNCS(tcsetattr stty setsid seteuid gethostbyname res_search herror \
  strrchr strerror setlinebuf syslog snprintf vprintf vsnprintf vsyslog \
  atexit inet_aton strftime setrlimit socketpair sigprocmask)

# Under Red Hat 4.0 (and many other Linuxes) -lresolv is seriously flaky
# and breaks gethostbyname(2).  It's better to use the bind stuff in the C
# library.  So don't add -lresolv to the link list unless it's necessary
# (It will be necessary when using GNU libc6).
AC_CHECK_FUNC(res_search,
    AC_MSG_RESULT(using libc's resolver functions),
    AC_CHECK_LIB(resolv,res_search, 
	[AC_DEFINE(HAVE_RES_SEARCH) AC_MSG_RESULT(found resolver functions in libresolv); LIBS="$LIBS -lresolv"], AC_MSG_RESULT(no resolver calls found)))

dnl AC_FUNC_SETVBUF_REVERSED

dnl Check for usable void pointer type
AC_MSG_CHECKING(use of void pointer type)
AC_TRY_COMPILE([],
   [char *p;
    void *xmalloc();
    p = (char *) xmalloc(1);
   ],
 [AC_DEFINE(HAVE_VOIDPOINTER) AC_MSG_RESULT(yes)],
 AC_MSG_RESULT(no))

dnl Check for ANSI volatile
AC_MSG_CHECKING(for ANSI volatile)
AC_TRY_COMPILE([],
   [volatile int n;],
 [AC_DEFINE(HAVE_VOLATILE) AC_MSG_RESULT(yes)],
 AC_MSG_RESULT(no))

dnl Check out the wait reality.  We have to assume sys/wait.h is present.
AC_CHECK_FUNCS(waitpid wait3)
AC_MSG_CHECKING(for union wait);
AC_TRY_LINK([#include <sys/types.h>
#include <sys/wait.h>],
	 	 [union wait status; int pid; pid = wait (&status);
#ifdef WEXITSTATUS
/* Some POSIXoid systems have both the new-style macros and the old
   union wait type, and they do not work together.  If union wait
   conflicts with WEXITSTATUS et al, we don't want to use it at all.  */
if (WEXITSTATUS (status) != 0) pid = -1;
#endif
#ifdef HAVE_WAITPID
/* Make sure union wait works with waitpid.  */
pid = waitpid (-1, &status, 0);
#endif
],
  [AC_DEFINE(HAVE_UNION_WAIT) AC_MSG_RESULT(yes)],
  AC_MSG_RESULT(no))

AC_MSG_CHECKING(sys_siglist declaration in signal.h or unistd.h)
AC_TRY_LINK([#include <signal.h>
/* NetBSD declares sys_siglist in <unistd.h>.  */
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif], [char *msg = *(sys_siglist + 1);],
  [AC_DEFINE(SYS_SIGLIST_DECLARED) AC_MSG_RESULT(yes)],
  AC_MSG_RESULT(no))

# Find the right directory to put the root-mode PID file in
for dir in "/var/run" "/etc"
do
	if test -d $dir 
	then
		break;
	fi
done
AC_MSG_RESULT(root-mode pid file will go in $dir)
AC_DEFINE_UNQUOTED(PID_DIR, "$dir")

AC_CHECK_SIZEOF(short)
AC_CHECK_SIZEOF(int)
AC_CHECK_SIZEOF(long)

if test "$USE_NLS" = "yes"
then
	echo 'Enabling internationalization support...'
	POMAKE='$(MAKE) -C po'
  	if test "x$prefix" != xNONE; then
		EXTRADEFS="$EXTRADEFS -DLOCALEDIR='\"$prefix/share/locale\"'"
  	else
		EXTRADEFS="$EXTRADEFS -DLOCALEDIR='\"$ac_default_prefix/share/locale\"'"
	fi
else
	echo 'Disabling internationalization support...'
	POMAKE="@echo '(NLS support disabled)'; #"
fi

###	use option --enable-POP2 to compile in the POP2 support
AC_ARG_ENABLE(POP2,
	[  --enable-POP2           compile in POP2 protocol support (obsolete)],
	[with_POP2=$enableval],
	[with_POP2=no])
test "$with_POP2" = "yes" && AC_DEFINE(POP2_ENABLE)

###	use option --disable-POP3 to omit the POP3 support
AC_ARG_ENABLE(POP3,
	[  --disable-POP3          don't compile in POP3 protocol support],
	[with_POP3=$enableval],
	[with_POP3=yes])
test "$with_POP3" = "yes" && AC_DEFINE(POP3_ENABLE)

###	use option --disable-IMAP to omit the IMAP support
AC_ARG_ENABLE(IMAP,
	[  --disable-IMAP          don't compile in IMAP protocol support],
	[with_IMAP=$enableval],
	[with_IMAP=yes])
test "$with_IMAP" = "yes" && AC_DEFINE(IMAP_ENABLE)

###	use option --disable-ETRN to omit the ETRN support
AC_ARG_ENABLE(ETRN,
	[  --disable-ETRN          don't compile in ETRN protocol support],
	[with_ETRN=$enableval],
	[with_ETRN=yes])
test "$with_ETRN" = "yes" && AC_DEFINE(ETRN_ENABLE)

###	use option --enable-RPA to compile in the RPA support
AC_ARG_ENABLE(RPA,
	[  --enable-RPA            compile in RPA protocol support],
	[with_RPA=$enableval],
	[with_RPA=no])
test "$with_RPA" = "yes" && AC_DEFINE(RPA_ENABLE)

###	use option --enable-SDPS to compile in the SDPS support
AC_ARG_ENABLE(SDPS,
	[  --enable-SDPS           compile in SDPS protocol support],
	[with_SDPS=$enableval],
	[with_SDPS=no])
test "$with_SDPS" = "yes" && AC_DEFINE(SDPS_ENABLE)

###	use option --enable-opie to compile in the OPIE support
AC_ARG_ENABLE(opie,
	[  --enable-opie           support OTP through the OPIE library],
	[ AC_CHECK_HEADER(opie.h,, [echo 'configure: cannot find <opie.h>, which is required for OPIE support.'; exit 1])
          AC_CHECK_LIB(opie,opiegenerator,, [echo 'configure: cannot find libopie, which is required for OPIE support.'; exit 1])
          AC_DEFINE(OPIE,1) ],
	[with_opie=no])

AC_ARG_ENABLE(inet6,
	[  --enable-inet6          support IPv6 (requires the inet6-apps library)],
        [ unset ac_cv_lib_inet6_getaddrinfo; AC_CHECK_LIB(inet6, getaddrinfo,,
	[ unset ac_cv_lib_inet6_getaddrinfo; LDFLAGS="$LDFLAGS -L/usr/inet6/lib"; AC_CHECK_LIB(inet6, getaddrinfo,,
        [ echo 'configure: cannot find libinet6, which is required for IPv6 support.'; exit 1]) ])
          AC_DEFINE(INET6, 1) ])

AC_ARG_ENABLE(netsec,
	[  --enable-netsec         support network security (requires inet6-apps library)],
        [ unset ac_cv_lib_inet6_net_security_strtorequest; AC_CHECK_LIB(inet6, net_security_strtorequest,,
	[ unset ac_cv_lib_inet6_net_security_strtorequest; LDFLAGS="$LDFLAGS -L/usr/inet6/lib"; AC_CHECK_LIB(inet6, net_security_strtorequest,,
        [ echo 'configure: cannot find net_security_strtorequest in libinet6, which is required';
          echo '           for network security support. Either it does not exist, or it was';
          echo '           not built with network security support enabled.';
          exit 1]) ])
          unset ac_cv_header_net_security_h; AC_CHECK_HEADER(net/security.h,,
        [ unset ac_cv_header_net_security_h; CPPFLAGS="$CPPFLAGS -I/usr/inet6/include"; CFLAGS="$CFLAGS -I/usr/inet6/include"; AC_CHECK_HEADER(net/security.h,,
	[ echo 'configure: cannot find <net/security.h>, which is required for network security';
          echo '           support.';
          exit 1]) ])
          AC_DEFINE(NET_SECURITY, 1) ])
  
###	use option --with-kerberos5=DIR to point at a Kerberos 5 directory
AC_ARG_WITH(kerberos5,
	[  --with-kerberos5=DIR    point fetchmail compilation at a Kerberos 5 directory])

# The "then" arm (nonempty $with_kerberos5) is kind of a crock.  It works for
# configuring the BSD/OS Kerberos IV support, though. 
if test -n "$with_kerberos5"
then
    # Path given
    CEFLAGS="$CEFLAGS -DKERBEROS_V5 -I$with_kerberos5/include"
    LDEFLAGS="$LDEFLAGS -L$with_kerberos5/lib"
    LIBS="$LIBS -lkrb5 -lcrypto -lcom_err"
else
    for dir in /usr/kerberos /usr/local/krb5 /usr/athena
    do
      if test -f "$dir/include/krb5.h"
      then
        CEFLAGS="$CEFLAGS -DKERBEROS_V5 -I$dir/include"
        LDEFLAGS="$LDEFLAGS -L$dir/lib"
        LIBS="$LIBS -lkrb5 -lcrypto -lcom_err"
        with_kerberos5=$dir
        break
      fi
    done
fi

###	use option --with-kerberos=DIR to point at a Kerberos directory
AC_ARG_WITH(kerberos,
	[  --with-kerberos=DIR     point fetchmail compilation at a Kerberos directory])

# The "elif" arm (nonempty $with_kerberos) is kind of a crock.  It works for
# configuring the BSD/OS Kerberos IV support, though. 

# Check for a NetBSD special case
if test "$with_kerberos" = "yes" -a `uname` = "NetBSD" 
then
  echo "Configuring kerberosIV for NetBSD"
  CEFLAGS="$CEFLAGS -DKERBEROS_V4 -I/usr/include/kerberosIV"
  LIBS="$LIBS -lkrb -ldes"
elif test -n "$with_kerberos" -a -n "$with_kerberos5"
then
    CEFLAGS="$CEFLAGS -DKERBEROS_V4 -I$with_kerberos/include"
    LDEFLAGS="$LDEFLAGS -L$with_kerberos/lib"
    LIBS="-lkrb4 -ldes425 $LIBS"
elif test -n "$with_kerberos5"
then
    for dir in /usr/kerberos /usr/kerberosIV /usr/athena
    do
      if test -f "$dir/include/kerberosIV/krb.h"
      then
        CEFLAGS="$CEFLAGS -DKERBEROS_V4 -I$dir/include"
        LDEFLAGS="$LDEFLAGS -L$dir/lib"
	LIBS="-lkrb4 -ldes425 $LIBS"
        break
      fi
    done
elif test -n "$with_kerberos"
then
    CEFLAGS="$CEFLAGS -DKERBEROS_V4 -I$with_kerberos/include"
    LDEFLAGS="$LDEFLAGS -L$with_kerberos/lib"
    LIBS="$LIBS -lkrb -ldes"
else
    for dir in /usr/kerberos /usr/kerberosIV /usr/athena
    do
      if test -f "$dir/include/krb.h"
      then
        CEFLAGS="$CEFLAGS -DKERBEROS_V4 -I$dir/include"
        LDEFLAGS="$LDEFLAGS -L$dir/lib"
        LIBS="$LIBS -lkrb -ldes"
        break
      fi
    done
fi

###	use option --with-socks=DIR to point at SOCKS library
AC_ARG_WITH(socks,
	[  --with-socks[=DIR]      add built-in SOCKS firewall access],
[
if test "$with_socks" != no
then
    if test "$with_socks" != yes
    then
        LDEFLAGS="$LDEFLAGS -L$with_socks"
    else
        AC_CHECK_LIB(socks, Rconnect,,
               AC_MSG_ERROR([could not find libsocks which is needed for built-in SOCKS support]))
    fi
    AC_DEFINE(HAVE_SOCKS)
    CEFLAGS="$CEFLAGS -Dconnect=Rconnect -Dgetsockname=Rgetsockname -Dbind=Rbind -Daccept=Raccept -Dlisten=Rlisten -Dselect=Rselect"
    LIBS="-lsocks $LIBS"
fi])

###	use option --with-hesiod=DIR to point at a HESIOD directory
AC_ARG_WITH(hesiod,
	[  --with-hesiod=DIR       point fetchmail compilation at a HESIOD directory])

if test -n "$with_hesiod"
then
    # Path given
    CEFLAGS="$CEFLAGS -DHESIOD -I$with_hesiod/include"
    LDEFLAGS="$LDEFLAGS -L$with_hesiod/lib"
    LIBS="$LIBS -lhesiod"
else
    for dir in /usr/athena /usr /usr/local
    do
      if test -f "$dir/include/hesiod.h"
      then
        CEFLAGS="$CEFLAGS -DHESIOD -I$dir/include"
        LDEFLAGS="$LDEFLAGS -L$dir/lib"
        LIBS="$LIBS -lhesiod"
        with_hesiod=$dir
        break
      fi
    done
fi

###	use option --with-gssapi=DIR to compile in GSSAPI support
AC_ARG_WITH(gssapi,
	[  --with-gssapi[=DIR]     compile in GSSAPI support using libraries in DIR],
[
if test "$with_gssapi" != "no"
then
  if test "$with_gssapi" = "yes" -a -n "$with_kerberos5"
  then
    with_gssapi=$with_kerberos5
  fi
  if test "$with_gssapi" != "yes" -a -n "$with_gssapi"
  then
    CFLAGS="$CFLAGS -I$with_gssapi/include"
    LDFLAGS="$LDFLAGS -L$with_gssapi/lib"
  fi

  AC_CHECK_LIB(krb5, krb5_init_context,,
               AC_MSG_ERROR([could not find libkrb5 which is needed for GSSAPI support]))
  AC_CHECK_LIB(gssapi_krb5, gss_init_sec_context,,
               AC_MSG_ERROR([could not find libgssapi_krb5 which is needed for GSSAPI support]), -lkrb5)
  AC_DEFINE(GSSAPI)
  LIBS="$LIBS -lgssapi_krb5 -lkrb5"
fi])

AC_OUTPUT([Makefile intl/Makefile po/Makefile.in], [
	# The reason for this odd makedepend line is that we want
	# to have all dependencies evaluated relative to the source directory
	# and let VPATH do all the dirty work when we build remotely
	echo "You can ignore any makedepend error messages";
	(cd $srcdir; makedepend -f - *.c) >>Makefile])

dnl Local Variables:
dnl comment-start: "dnl "
dnl comment-end: ""
dnl comment-start-skip: "\\bdnl\\b\\s *"
dnl compile-command: "make configure config.h.in"
dnl End: