path: root/acinclude.m4

dnl macros to configure g10


dnl WK_MSG_PRINT(STRING)
dnl print a message
dnl
define(WK_MSG_PRINT,
  [ echo $ac_n "$1"" $ac_c" 1>&AC_FD_MSG
  ])


dnl WK_CHECK_TYPEDEF(TYPE, HAVE_NAME)
dnl Check wether a typedef exists and create a #define $2 if it exists
dnl
AC_DEFUN(WK_CHECK_TYPEDEF,
  [ AC_MSG_CHECKING(for $1 typedef)
    AC_CACHE_VAL(wk_cv_typedef_$1,
    [AC_TRY_COMPILE([#include <stdlib.h>
    #include <sys/types.h>], [
    #undef $1
    int a = sizeof($1);
    ], wk_cv_typedef_$1=yes, wk_cv_typedef_$1=no )])
    AC_MSG_RESULT($wk_cv_typedef_$1)
    if test "$wk_cv_typedef_$1" = yes; then
	AC_DEFINE($2)
    fi
  ])



dnl WK_LINK_FILES( SRC, DEST )
dnl same as AC_LINK_FILES, but collect the files to link in
dnl some special variables and do the link
dnl when WK_DO_LINK_FILES is called
dnl This is a workaround for AC_LINK_FILES, because it does not work
dnl correct when using a caching scheme
dnl
define(WK_LINK_FILES,
  [ if test "x$wk_link_files_src" = "x"; then
	wk_link_files_src="$1"
	wk_link_files_dst="$2"
    else
	wk_link_files_src="$wk_link_files_src $1"
	wk_link_files_dst="$wk_link_files_dst $2"
    fi
  ])
define(WK_DO_LINK_FILES,
  [ AC_LINK_FILES( $wk_link_files_src, $wk_link_files_dst )
  ])


dnl WK_CHECK_ENDIAN
dnl define either LITTLE_ENDIAN_HOST or BIG_ENDIAN_HOST
dnl
define(WK_CHECK_ENDIAN,
  [ if test "$cross_compiling" = yes; then
	AC_MSG_WARN(cross compiling; assuming little endianess)
    fi
    AC_MSG_CHECKING(endianess)
    AC_CACHE_VAL(wk_cv_c_endian,
      [ wk_cv_c_endian=unknown
	# See if sys/param.h defines the BYTE_ORDER macro.
	AC_TRY_COMPILE([#include <sys/types.h>
	#include <sys/param.h>], [
	#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
	 bogus endian macros
	#endif], [# It does; now see whether it defined to BIG_ENDIAN or not.
	AC_TRY_COMPILE([#include <sys/types.h>
	#include <sys/param.h>], [
	#if BYTE_ORDER != BIG_ENDIAN
	 not big endian
	#endif], wk_cv_c_endian=big, wk_cv_c_endian=little)])
	if test "$wk_cv_c_endian" = unknown; then
	    AC_TRY_RUN([main () {
	      /* Are we little or big endian?  From Harbison&Steele.  */
	      union
	      {
		long l;
		char c[sizeof (long)];
	      } u;
	      u.l = 1;
	      exit (u.c[sizeof (long) - 1] == 1);
	      }],
	      wk_cv_c_endian=little,
	      wk_cv_c_endian=big,
	      wk_cv_c_endian=little
	    )
	fi
      ])
    AC_MSG_RESULT([$wk_cv_c_endian])
    if test "$wk_cv_c_endian" = little; then
      AC_DEFINE(LITTLE_ENDIAN_HOST)
    else
      AC_DEFINE(BIG_ENDIAN_HOST)
    fi
  ])

dnl WK_CHECK_CACHE
dnl
define(WK_CHECK_CACHE,
  [ AC_MSG_CHECKING(cached information)
    wk_hostcheck="$target"
    AC_CACHE_VAL(wk_cv_hostcheck, [ wk_cv_hostcheck="$wk_hostcheck" ])
    if test "$wk_cv_hostcheck" != "$wk_hostcheck"; then
	AC_MSG_RESULT(changed)
	AC_MSG_WARN(config.cache exists!)
	AC_MSG_ERROR(you must do 'make distclean' first to compile for
		 different target or different parameters.)
    else
	AC_MSG_RESULT(ok)
    fi
  ])


######################################################################
# progtest.m4 from gettext 0.32
######################################################################
# Search path for a program which passes the given test.
# Ulrich Drepper <drepper@cygnus.com>, 1996.
#
# This file file be copied and used freely without restrictions.  It can
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.

# serial 1

dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
AC_DEFUN(AM_PATH_PROG_WITH_TEST,
[# Extract the first word of "$2", so it can be a program name with args.
set dummy $2; ac_word=[$]2
AC_MSG_CHECKING([for $ac_word])
AC_CACHE_VAL(ac_cv_path_$1,
[case "[$]$1" in
  /*)
  ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
  ;;
  *)
  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
  for ac_dir in ifelse([$5], , $PATH, [$5]); do
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      if [$3]; then
	ac_cv_path_$1="$ac_dir/$ac_word"
	break
      fi
    fi
  done
  IFS="$ac_save_ifs"
dnl If no 4th arg is given, leave the cache variable unset,
dnl so AC_PATH_PROGS will keep looking.
ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
])dnl
  ;;
esac])dnl
$1="$ac_cv_path_$1"
if test -n "[$]$1"; then
  AC_MSG_RESULT([$]$1)
else
  AC_MSG_RESULT(no)
fi
AC_SUBST($1)dnl
])


######################################################################
# lcmessage.m4 from gettext 0.32
######################################################################
# Check whether LC_MESSAGES is available in <locale.h>.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
#
# This file file be copied and used freely without restrictions.  It can
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.

# serial 1

AC_DEFUN(AM_LC_MESSAGES,
  [if test $ac_cv_header_locale_h = yes; then
    AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
      [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
       am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
    if test $am_cv_val_LC_MESSAGES = yes; then
      AC_DEFINE(HAVE_LC_MESSAGES)
    fi
  fi])



######################################################################
# gettext.m4 from gettext 0.32
######################################################################
# Macro to add for using GNU gettext.
# Ulrich Drepper <drepper@cygnus.com>, 1995.
#
# This file file be copied and used freely without restrictions.  It can
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.

# serial 3

AC_DEFUN(AM_WITH_NLS,
  [AC_MSG_CHECKING([whether NLS is requested])
    dnl Default is enabled NLS
    AC_ARG_ENABLE(nls,
      [  --disable-nls		 do not use Native Language Support],
      USE_NLS=$enableval, USE_NLS=yes)
    AC_MSG_RESULT($USE_NLS)
    AC_SUBST(USE_NLS)

    USE_INCLUDED_LIBINTL=no

    dnl If we use NLS figure out what method
    if test "$USE_NLS" = "yes"; then
      AC_DEFINE(ENABLE_NLS)
      AC_MSG_CHECKING([whether included gettext is requested])
      AC_ARG_WITH(included-gettext,
	[  --with-included-gettext use the GNU gettext library included here],
	nls_cv_force_use_gnu_gettext=$withval,
	nls_cv_force_use_gnu_gettext=no)
      AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)

      nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
      if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
	dnl User does not insist on using GNU NLS library.  Figure out what
	dnl to use.  If gettext or catgets are available (in this order) we
	dnl use this.  Else we have to fall back to GNU NLS library.
	dnl catgets is only used if permitted by option --with-catgets.
	nls_cv_header_intl=
	nls_cv_header_libgt=
	CATOBJEXT=NONE

	AC_CHECK_HEADER(libintl.h,
	  [AC_CACHE_CHECK([for gettext in libc], gt_cv_func_gettext_libc,
	    [AC_TRY_LINK([#include <libintl.h>], [return (int) gettext ("")],
	       gt_cv_func_gettext_libc=yes, gt_cv_func_gettext_libc=no)])

	   if test "$gt_cv_func_gettext_libc" != "yes"; then
	     AC_CHECK_LIB(intl, bindtextdomain,
	       [AC_CACHE_CHECK([for gettext in libintl],
		 gt_cv_func_gettext_libintl,
		 [AC_TRY_LINK([], [return (int) gettext ("")],
		 gt_cv_func_gettext_libintl=yes,
		 gt_cv_func_gettext_libintl=no)])])
	   fi

	   if test "$gt_cv_func_gettext_libc" = "yes" \
	      || test "$gt_cv_func_gettext_libintl" = "yes"; then
	      AC_DEFINE(HAVE_GETTEXT)
	      AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
		[test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
	      if test "$MSGFMT" != "no"; then
		AC_CHECK_FUNCS(dcgettext)
		AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
		AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
		  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
		AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
			       return _nl_msg_cat_cntr],
		  [CATOBJEXT=.gmo
		   DATADIRNAME=share],
		  [CATOBJEXT=.mo
		   DATADIRNAME=lib])
		INSTOBJEXT=.mo
	      fi
	    fi
	])

	if test "$CATOBJEXT" = "NONE"; then
	  AC_MSG_CHECKING([whether catgets can be used])
	  AC_ARG_WITH(catgets,
	    [  --with-catgets	       use catgets functions if available],
	    nls_cv_use_catgets=$withval, nls_cv_use_catgets=no)
	  AC_MSG_RESULT($nls_cv_use_catgets)

	  if test "$nls_cv_use_catgets" = "yes"; then
	    dnl No gettext in C library.  Try catgets next.
	    AC_CHECK_LIB(i, main)
	    AC_CHECK_FUNC(catgets,
	      [AC_DEFINE(HAVE_CATGETS)
	       INTLOBJS="\$(CATOBJS)"
	       AC_PATH_PROG(GENCAT, gencat, no)dnl
	       if test "$GENCAT" != "no"; then
		 AC_PATH_PROG(GMSGFMT, gmsgfmt, no)
		 if test "$GMSGFMT" = "no"; then
		   AM_PATH_PROG_WITH_TEST(GMSGFMT, msgfmt,
		    [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)
		 fi
		 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
		   [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
		 USE_INCLUDED_LIBINTL=yes
		 CATOBJEXT=.cat
		 INSTOBJEXT=.cat
		 DATADIRNAME=lib
		 INTLDEPS='$(top_builddir)/intl/libintl.a'
		 INTLLIBS=$INTLDEPS
		 LIBS=`echo $LIBS | sed -e 's/-lintl//'`
		 nls_cv_header_intl=intl/libintl.h
		 nls_cv_header_libgt=intl/libgettext.h
	       fi])
	  fi
	fi

	if test "$CATOBJEXT" = "NONE"; then
	  dnl Neither gettext nor catgets in included in the C library.
	  dnl Fall back on GNU gettext library.
	  nls_cv_use_gnu_gettext=yes
	fi
      fi

      if test "$nls_cv_use_gnu_gettext" = "yes"; then
	dnl Mark actions used to generate GNU NLS library.
	INTLOBJS="\$(GETTOBJS)"
	AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
	  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
	AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
	AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
	  [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
	AC_SUBST(MSGFMT)
	USE_INCLUDED_LIBINTL=yes
	CATOBJEXT=.gmo
	INSTOBJEXT=.mo
	DATADIRNAME=share
	INTLDEPS='$(top_builddir)/intl/libintl.a'
	INTLLIBS=$INTLDEPS
	LIBS=`echo $LIBS | sed -e 's/-lintl//'`
	nls_cv_header_intl=intl/libintl.h
	nls_cv_header_libgt=intl/libgettext.h
      fi

      dnl Test whether we really found GNU xgettext.
      if test "$XGETTEXT" != ":"; then
	dnl If it is no GNU xgettext we define it as : so that the
	dnl Makefiles still can work.
	if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
	  : ;
	else
	  AC_MSG_RESULT(
	    [found xgettext programs is not GNU xgettext; ignore it])
	  XGETTEXT=":"
	fi
      fi

      # We need to process the po/ directory.
      POSUB=po
    else
      DATADIRNAME=share
      nls_cv_header_intl=intl/libintl.h
      nls_cv_header_libgt=intl/libgettext.h
    fi

    # If this is used in GNU gettext we have to set USE_NLS to `yes'
    # because some of the sources are only built for this goal.
    if test "$PACKAGE" = gettext; then
      USE_NLS=yes
      USE_INCLUDED_LIBINTL=yes
    fi

    dnl These rules are solely for the distribution goal.  While doing this
    dnl we only have to keep exactly one list of the available catalogs
    dnl in configure.in.
    for lang in $ALL_LINGUAS; do
      GMOFILES="$GMOFILES $lang.gmo"
      POFILES="$POFILES $lang.po"
    done

    dnl Make all variables we use known to autoconf.
    AC_SUBST(USE_INCLUDED_LIBINTL)
    AC_SUBST(CATALOGS)
    AC_SUBST(CATOBJEXT)
    AC_SUBST(DATADIRNAME)
    AC_SUBST(GMOFILES)
    AC_SUBST(INSTOBJEXT)
    AC_SUBST(INTLDEPS)
    AC_SUBST(INTLLIBS)
    AC_SUBST(INTLOBJS)
    AC_SUBST(POFILES)
    AC_SUBST(POSUB)
  ])

AC_DEFUN(AM_GNU_GETTEXT,
  [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
   AC_REQUIRE([AC_PROG_CC])dnl
   AC_REQUIRE([AC_PROG_RANLIB])dnl
   AC_REQUIRE([AC_ISC_POSIX])dnl
   AC_REQUIRE([AC_HEADER_STDC])dnl
   AC_REQUIRE([AC_C_CONST])dnl
   AC_REQUIRE([AC_C_INLINE])dnl
   AC_REQUIRE([AC_TYPE_OFF_T])dnl
   AC_REQUIRE([AC_TYPE_SIZE_T])dnl
   AC_REQUIRE([AC_FUNC_ALLOCA])dnl
   AC_REQUIRE([AC_FUNC_MMAP])dnl

   AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
unistd.h values.h sys/param.h])
   AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
__argz_count __argz_stringify __argz_next])

   if test "${ac_cv_func_stpcpy+set}" != "set"; then
     AC_CHECK_FUNCS(stpcpy)
   fi
   if test "${ac_cv_func_stpcpy}" = "yes"; then
     AC_DEFINE(HAVE_STPCPY)
   fi

   AM_LC_MESSAGES
   AM_WITH_NLS

   if test "x$CATOBJEXT" != "x"; then
     if test "x$ALL_LINGUAS" = "x"; then
       LINGUAS=
     else
       AC_MSG_CHECKING(for catalogs to be installed)
       NEW_LINGUAS=
       for lang in ${LINGUAS=$ALL_LINGUAS}; do
	 case "$ALL_LINGUAS" in
	  *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
	 esac
       done
       LINGUAS=$NEW_LINGUAS
       AC_MSG_RESULT($LINGUAS)
     fi

     dnl Construct list of names of catalog files to be constructed.
     if test -n "$LINGUAS"; then
       for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
     fi
   fi

   dnl The reference to <locale.h> in the installed <libintl.h> file
   dnl must be resolved because we cannot expect the users of this
   dnl to define HAVE_LOCALE_H.
   if test $ac_cv_header_locale_h = yes; then
     INCLUDE_LOCALE_H="#include <locale.h>"
   else
     INCLUDE_LOCALE_H="\
/* The system does not provide the header <locale.h>.  Take care yourself.  */"
   fi
   AC_SUBST(INCLUDE_LOCALE_H)

   dnl Determine which catalog format we have (if any is needed)
   dnl For now we know about two different formats:
   dnl	 Linux libc-5 and the normal X/Open format
   test -d intl || mkdir intl
   if test "$CATOBJEXT" = ".cat"; then
     AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)

     dnl Transform the SED scripts while copying because some dumb SEDs
     dnl cannot handle comments.
     sed -e '/^#/d' $srcdir/intl/$msgformat-msg.sed > intl/po2msg.sed
   fi
   dnl po2tbl.sed is always needed.
   sed -e '/^#.*[^\\]$/d' -e '/^#$/d' \
     $srcdir/intl/po2tbl.sed.in > intl/po2tbl.sed

   dnl In the intl/Makefile.in we have a special dependency which makes
   dnl only sense for gettext.	We comment this out for non-gettext
   dnl packages.
   if test "$PACKAGE" = "gettext"; then
     GT_NO="#NO#"
     GT_YES=
   else
     GT_NO=
     GT_YES="#YES#"
   fi
   AC_SUBST(GT_NO)
   AC_SUBST(GT_YES)

   dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
   dnl find the mkinstalldirs script in another subdir but ($top_srcdir).
   dnl Try to locate is.
   MKINSTALLDIRS=
   if test -n "$ac_aux_dir"; then
     MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
   fi
   if test -z "$MKINSTALLDIRS"; then
     MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
   fi
   AC_SUBST(MKINSTALLDIRS)

   dnl *** For now the libtool support in intl/Makefile is not for real.
   l=
   AC_SUBST(l)

   dnl Generate list of files to be processed by xgettext which will
   dnl be included in po/Makefile.
   test -d po || mkdir po
   if test "x$srcdir" != "x."; then
     if test "x`echo $srcdir | sed 's@/.*@@'`" = "x"; then
       posrcprefix="$srcdir/"
     else
       posrcprefix="../$srcdir/"
     fi
   else
     posrcprefix="../"
   fi
   rm -f po/POTFILES
   sed -e "/^#/d" -e "/^\$/d" -e "s,.*, $posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
	< $srcdir/po/POTFILES.in > po/POTFILES
  ])