texinfo/acinclude.m4

   1 # Macro to add for using GNU gettext.
   2 # Ulrich Drepper <drepper@cygnus.com>, 1995.
   3 #
   4 # This file can be copied and used freely without restrictions.  It can
   5 # be used in projects which are not available under the GNU Public License
   6 # but which still want to provide support for the GNU gettext functionality.
   7 # Please note that the actual code is *not* freely available.
   8
   9 # serial 3
  10
  11 AC_DEFUN(AM_WITH_NLS,
  12   [AC_MSG_CHECKING([whether NLS is requested])
  13     dnl Default is enabled NLS
  14     AC_ARG_ENABLE(nls,
  15       [  --disable-nls           do not use Native Language Support],
  16       USE_NLS=$enableval, USE_NLS=yes)
  17     AC_MSG_RESULT($USE_NLS)
  18     AC_SUBST(USE_NLS)
  19
  20     USE_INCLUDED_LIBINTL=no
  21
  22     dnl If we use NLS figure out what method
  23     if test "$USE_NLS" = "yes"; then
  24       AC_DEFINE(ENABLE_NLS)
  25       AC_MSG_CHECKING([whether included gettext is requested])
  26       AC_ARG_WITH(included-gettext,
  27         [  --with-included-gettext use the GNU gettext library included here],
  28         nls_cv_force_use_gnu_gettext=$withval,
  29         nls_cv_force_use_gnu_gettext=no)
  30       AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
  31
  32       nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
  33       if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
  34         dnl User does not insist on using GNU NLS library.  Figure out what
  35         dnl to use.  If gettext or catgets are available (in this order) we
  36         dnl use this.  Else we have to fall back to GNU NLS library.
  37         dnl catgets is only used if permitted by option --with-catgets.
  38         nls_cv_header_intl=
  39         nls_cv_header_libgt=
  40         CATOBJEXT=NONE
  41
  42         AC_CHECK_HEADER(libintl.h,
  43           [AC_CACHE_CHECK([for gettext in libc], gt_cv_func_gettext_libc,
  44             [AC_TRY_LINK([#include <libintl.h>], [return (int) gettext ("")],
  45                gt_cv_func_gettext_libc=yes, gt_cv_func_gettext_libc=no)])
  46
  47            if test "$gt_cv_func_gettext_libc" != "yes"; then
  48              AC_CHECK_LIB(intl, bindtextdomain,
  49                [AC_CACHE_CHECK([for gettext in libintl],
  50                  gt_cv_func_gettext_libintl,
  51                  [AC_TRY_LINK([], [return (int) gettext ("")],
  52                  gt_cv_func_gettext_libintl=yes,
  53                  gt_cv_func_gettext_libintl=no)])])
  54            fi
  55
  56            if test "$gt_cv_func_gettext_libc" = "yes" \
  57               || test "$gt_cv_func_gettext_libintl" = "yes"; then
  58               AC_DEFINE(HAVE_GETTEXT)
  59               AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
  60                 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
  61               if test "$MSGFMT" != "no"; then
  62                 AC_CHECK_FUNCS(dcgettext)
  63                 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
  64                 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
  65                   [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
  66                 AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
  67                                return _nl_msg_cat_cntr],
  68                   [CATOBJEXT=.gmo
  69                    DATADIRNAME=share],
  70                   [CATOBJEXT=.mo
  71                    DATADIRNAME=lib])
  72                 INSTOBJEXT=.mo
  73               fi
  74             fi
  75         ])
  76
  77         if test "$CATOBJEXT" = "NONE"; then
  78           AC_MSG_CHECKING([whether catgets can be used])
  79           AC_ARG_WITH(catgets,
  80             [  --with-catgets          use catgets functions if available],
  81             nls_cv_use_catgets=$withval, nls_cv_use_catgets=no)
  82           AC_MSG_RESULT($nls_cv_use_catgets)
  83
  84           if test "$nls_cv_use_catgets" = "yes"; then
  85             dnl No gettext in C library.  Try catgets next.
  86             AC_CHECK_LIB(i, main)
  87             AC_CHECK_FUNC(catgets,
  88               [AC_DEFINE(HAVE_CATGETS)
  89                INTLOBJS="\$(CATOBJS)"
  90                AC_PATH_PROG(GENCAT, gencat, no)dnl
  91                if test "$GENCAT" != "no"; then
  92                  AC_PATH_PROG(GMSGFMT, gmsgfmt, no)
  93                  if test "$GMSGFMT" = "no"; then
  94                    AM_PATH_PROG_WITH_TEST(GMSGFMT, msgfmt,
  95                     [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)
  96                  fi
  97                  AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
  98                    [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
  99                  USE_INCLUDED_LIBINTL=yes
 100                  CATOBJEXT=.cat
 101                  INSTOBJEXT=.cat
 102                  DATADIRNAME=lib
 103                  INTLDEPS='$(top_builddir)/intl/libintl.a'
 104                  INTLLIBS=$INTLDEPS
 105                  LIBS=`echo $LIBS | sed -e 's/-lintl//'`
 106                  nls_cv_header_intl=intl/libintl.h
 107                  nls_cv_header_libgt=intl/libgettext.h
 108                fi])
 109           fi
 110         fi
 111
 112         if test "$CATOBJEXT" = "NONE"; then
 113           dnl Neither gettext nor catgets in included in the C library.
 114           dnl Fall back on GNU gettext library.
 115           nls_cv_use_gnu_gettext=yes
 116         fi
 117       fi
 118
 119       if test "$nls_cv_use_gnu_gettext" = "yes"; then
 120         dnl Mark actions used to generate GNU NLS library.
 121         INTLOBJS="\$(GETTOBJS)"
 122         AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
 123           [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
 124         AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
 125         AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
 126           [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
 127         AC_SUBST(MSGFMT)
 128         USE_INCLUDED_LIBINTL=yes
 129         CATOBJEXT=.gmo
 130         INSTOBJEXT=.mo
 131         DATADIRNAME=share
 132         INTLDEPS='$(top_builddir)/intl/libintl.a'
 133         INTLLIBS=$INTLDEPS
 134         LIBS=`echo $LIBS | sed -e 's/-lintl//'`
 135         nls_cv_header_intl=intl/libintl.h
 136         nls_cv_header_libgt=intl/libgettext.h
 137       fi
 138
 139       dnl Test whether we really found GNU xgettext.
 140       if test "$XGETTEXT" != ":"; then
 141         dnl If it is no GNU xgettext we define it as : so that the
 142         dnl Makefiles still can work.
 143         if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
 144           : ;
 145         else
 146           AC_MSG_RESULT(
 147             [found xgettext programs is not GNU xgettext; ignore it])
 148           XGETTEXT=":"
 149         fi
 150       fi
 151
 152       # We need to process the po/ directory.
 153       POSUB=po
 154     else
 155       DATADIRNAME=share
 156       nls_cv_header_intl=intl/libintl.h
 157       nls_cv_header_libgt=intl/libgettext.h
 158     fi
 159
 160     # If this is used in GNU gettext we have to set USE_NLS to `yes'
 161     # because some of the sources are only built for this goal.
 162     if test "$PACKAGE" = gettext; then
 163       USE_NLS=yes
 164       USE_INCLUDED_LIBINTL=yes
 165     fi
 166
 167     dnl These rules are solely for the distribution goal.  While doing this
 168     dnl we only have to keep exactly one list of the available catalogs
 169     dnl in configure.in.
 170     for lang in $ALL_LINGUAS; do
 171       GMOFILES="$GMOFILES $lang.gmo"
 172       POFILES="$POFILES $lang.po"
 173     done
 174
 175     dnl Make all variables we use known to autoconf.
 176     AC_SUBST(USE_INCLUDED_LIBINTL)
 177     AC_SUBST(CATALOGS)
 178     AC_SUBST(CATOBJEXT)
 179     AC_SUBST(DATADIRNAME)
 180     AC_SUBST(GMOFILES)
 181     AC_SUBST(INSTOBJEXT)
 182     AC_SUBST(INTLDEPS)
 183     AC_SUBST(INTLLIBS)
 184     AC_SUBST(INTLOBJS)
 185     AC_SUBST(POFILES)
 186     AC_SUBST(POSUB)
 187   ])
 188
 189 AC_DEFUN(AM_GNU_GETTEXT,
 190   [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 191    AC_REQUIRE([AC_PROG_CC])dnl
 192    AC_REQUIRE([AC_PROG_RANLIB])dnl
 193    AC_REQUIRE([AC_ISC_POSIX])dnl
 194    AC_REQUIRE([AC_HEADER_STDC])dnl
 195    AC_REQUIRE([AC_C_CONST])dnl
 196    AC_REQUIRE([AC_C_INLINE])dnl
 197    AC_REQUIRE([AC_TYPE_OFF_T])dnl
 198    AC_REQUIRE([AC_TYPE_SIZE_T])dnl
 199    AC_REQUIRE([AC_FUNC_ALLOCA])dnl
 200    AC_REQUIRE([AC_FUNC_MMAP])dnl
 201
 202    AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
 203 unistd.h values.h sys/param.h])
 204    AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
 205 __argz_count __argz_stringify __argz_next])
 206
 207    if test "${ac_cv_func_stpcpy+set}" != "set"; then
 208      AC_CHECK_FUNCS(stpcpy)
 209    fi
 210    if test "${ac_cv_func_stpcpy}" = "yes"; then
 211      AC_DEFINE(HAVE_STPCPY)
 212    fi
 213
 214    AM_LC_MESSAGES
 215    AM_WITH_NLS
 216
 217    if test "x$CATOBJEXT" != "x"; then
 218      if test "x$ALL_LINGUAS" = "x"; then
 219        LINGUAS=
 220      else
 221        AC_MSG_CHECKING(for catalogs to be installed)
 222        NEW_LINGUAS=
 223        for lang in ${LINGUAS=$ALL_LINGUAS}; do
 224          case "$ALL_LINGUAS" in
 225           *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
 226          esac
 227        done
 228        LINGUAS=$NEW_LINGUAS
 229        AC_MSG_RESULT($LINGUAS)
 230      fi
 231
 232      dnl Construct list of names of catalog files to be constructed.
 233      if test -n "$LINGUAS"; then
 234        for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
 235      fi
 236    fi
 237
 238    dnl The reference to <locale.h> in the installed <libintl.h> file
 239    dnl must be resolved because we cannot expect the users of this
 240    dnl to define HAVE_LOCALE_H.
 241    if test $ac_cv_header_locale_h = yes; then
 242      INCLUDE_LOCALE_H="#include <locale.h>"
 243    else
 244      INCLUDE_LOCALE_H="\
 245 /* The system does not provide the header <locale.h>.  Take care yourself.  */"
 246    fi
 247    AC_SUBST(INCLUDE_LOCALE_H)
 248
 249    dnl Determine which catalog format we have (if any is needed)
 250    dnl For now we know about two different formats:
 251    dnl   Linux libc-5 and the normal X/Open format
 252    test -d intl || mkdir intl
 253    if test "$CATOBJEXT" = ".cat"; then
 254      AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)
 255
 256      dnl Transform the SED scripts while copying because some dumb SEDs
 257      dnl cannot handle comments.
 258      sed -e '/^#/d' $srcdir/intl/$msgformat-msg.sed > intl/po2msg.sed
 259    fi
 260    dnl po2tbl.sed is always needed.
 261    sed -e '/^#.*[^\\]$/d' -e '/^#$/d' \
 262      $srcdir/intl/po2tbl.sed.in > intl/po2tbl.sed
 263
 264    dnl In the intl/Makefile.in we have a special dependency which makes
 265    dnl only sense for gettext.  We comment this out for non-gettext
 266    dnl packages.
 267    if test "$PACKAGE" = "gettext"; then
 268      GT_NO="#NO#"
 269      GT_YES=
 270    else
 271      GT_NO=
 272      GT_YES="#YES#"
 273    fi
 274    AC_SUBST(GT_NO)
 275    AC_SUBST(GT_YES)
 276
 277    dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
 278    dnl find the mkinstalldirs script in another subdir but ($top_srcdir).
 279    dnl Try to locate is.
 280    MKINSTALLDIRS=
 281    if test -n "$ac_aux_dir"; then
 282      MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
 283    fi
 284    if test -z "$MKINSTALLDIRS"; then
 285      MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
 286    fi
 287    AC_SUBST(MKINSTALLDIRS)
 288
 289    dnl *** For now the libtool support in intl/Makefile is not for real.
 290    l=
 291    AC_SUBST(l)
 292
 293    dnl Generate list of files to be processed by xgettext which will
 294    dnl be included in po/Makefile.
 295    test -d po || mkdir po
 296    if test "x$srcdir" != "x."; then
 297      if test "x`echo $srcdir | sed 's@/.*@@'`" = "x"; then
 298        posrcprefix="$srcdir/"
 299      else
 300        posrcprefix="../$srcdir/"
 301      fi
 302    else
 303      posrcprefix="../"
 304    fi
 305    rm -f po/POTFILES
 306    sed -e "/^#/d" -e "/^\$/d" -e "s,.*, $posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
 307         < $srcdir/po/POTFILES.in > po/POTFILES
 308   ])
 309
 310 # Search path for a program which passes the given test.
 311 # Ulrich Drepper <drepper@cygnus.com>, 1996.
 312 #
 313 # This file can be copied and used freely without restrictions.  It can
 314 # be used in projects which are not available under the GNU Public License
 315 # but which still want to provide support for the GNU gettext functionality.
 316 # Please note that the actual code is *not* freely available.
 317
 318 # serial 1
 319
 320 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
 321 dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
 322 AC_DEFUN(AM_PATH_PROG_WITH_TEST,
 323 [# Extract the first word of "$2", so it can be a program name with args.
 324 set dummy $2; ac_word=[$]2
 325 AC_MSG_CHECKING([for $ac_word])
 326 AC_CACHE_VAL(ac_cv_path_$1,
 327 [case "[$]$1" in
 328   /*)
 329   ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
 330   ;;
 331   *)
 332   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
 333   for ac_dir in ifelse([$5], , $PATH, [$5]); do
 334     test -z "$ac_dir" && ac_dir=.
 335     if test -f $ac_dir/$ac_word; then
 336       if [$3]; then
 337         ac_cv_path_$1="$ac_dir/$ac_word"
 338         break
 339       fi
 340     fi
 341   done
 342   IFS="$ac_save_ifs"
 343 dnl If no 4th arg is given, leave the cache variable unset,
 344 dnl so AC_PATH_PROGS will keep looking.
 345 ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
 346 ])dnl
 347   ;;
 348 esac])dnl
 349 $1="$ac_cv_path_$1"
 350 if test -n "[$]$1"; then
 351   AC_MSG_RESULT([$]$1)
 352 else
 353   AC_MSG_RESULT(no)
 354 fi
 355 AC_SUBST($1)dnl
 356 ])
 357
 358 # Check whether LC_MESSAGES is available in <locale.h>.
 359 # Ulrich Drepper <drepper@cygnus.com>, 1995.
 360 #
 361 # This file can be copied and used freely without restrictions.  It can
 362 # be used in projects which are not available under the GNU Public License
 363 # but which still want to provide support for the GNU gettext functionality.
 364 # Please note that the actual code is *not* freely available.
 365
 366 # serial 1
 367
 368 AC_DEFUN(AM_LC_MESSAGES,
 369   [if test $ac_cv_header_locale_h = yes; then
 370     AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
 371       [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
 372        am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
 373     if test $am_cv_val_LC_MESSAGES = yes; then
 374       AC_DEFINE(HAVE_LC_MESSAGES)
 375     fi
 376   fi])
 377