gettext.m4

   1 # This file is derived from `gettext.m4'.  The difference is that the
   2 # included macros assume Cygnus-style source and build trees.
   3
   4 # Macro to add for using GNU gettext.
   5 # Ulrich Drepper <drepper@cygnus.com>, 1995.
   6 #
   7 # This file file be copied and used freely without restrictions.  It can
   8 # be used in projects which are not available under the GNU Public License
   9 # but which still want to provide support for the GNU gettext functionality.
  10 # Please note that the actual code is *not* freely available.
  11
  12 # serial 3
  13
  14 AC_DEFUN([CY_WITH_NLS],
  15   [AC_MSG_CHECKING([whether NLS is requested])
  16     dnl Default is enabled NLS
  17     AC_ARG_ENABLE(nls,
  18       [  --disable-nls           do not use Native Language Support],
  19       USE_NLS=$enableval, USE_NLS=yes)
  20     AC_MSG_RESULT($USE_NLS)
  21     AC_SUBST(USE_NLS)
  22
  23     USE_INCLUDED_LIBINTL=no
  24
  25     dnl If we use NLS figure out what method
  26     if test "$USE_NLS" = "yes"; then
  27       AC_MSG_CHECKING([whether included gettext is requested])
  28       AC_ARG_WITH(included-gettext,
  29         [  --with-included-gettext use the GNU gettext library included here],
  30         nls_cv_force_use_gnu_gettext=$withval,
  31         nls_cv_force_use_gnu_gettext=no)
  32       AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
  33
  34       nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
  35       if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
  36         dnl User does not insist on using GNU NLS library.  Figure out what
  37         dnl to use.  If gettext or catgets are available (in this order) we
  38         dnl use this.  Else we have to fall back to GNU NLS library.
  39         dnl catgets is only used if permitted by option --with-catgets.
  40         nls_cv_header_intl=
  41         nls_cv_header_libgt=
  42         CATOBJEXT=
  43
  44         AC_CHECK_HEADER(libintl.h,
  45           [AC_CACHE_CHECK([for gettext in libc], gt_cv_func_gettext_libc,
  46             [AC_TRY_LINK([#include <libintl.h>], [return (int) gettext ("")],
  47                gt_cv_func_gettext_libc=yes, gt_cv_func_gettext_libc=no)])
  48
  49            if test "$gt_cv_func_gettext_libc" != "yes"; then
  50              AC_CHECK_LIB(intl, bindtextdomain,
  51                [AC_CACHE_CHECK([for gettext in libintl],
  52                  gt_cv_func_gettext_libintl,
  53                  [AC_TRY_LINK([], [return (int) gettext ("")],
  54                  gt_cv_func_gettext_libintl=yes,
  55                  gt_cv_func_gettext_libintl=no)])])
  56            fi
  57
  58            if test "$gt_cv_func_gettext_libc" = "yes" \
  59               || test "$gt_cv_func_gettext_libintl" = "yes"; then
  60               AC_DEFINE(HAVE_GETTEXT, 1,
  61                         [Define as 1 if you have gettext and don't want to use GNU gettext.])
  62               AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
  63                 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
  64               if test "$MSGFMT" != "no"; then
  65                 AC_CHECK_FUNCS(dcgettext)
  66                 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
  67                 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
  68                   [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
  69                 AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
  70                                return _nl_msg_cat_cntr],
  71                   [CATOBJEXT=.gmo
  72                    DATADIRNAME=share],
  73                   [CATOBJEXT=.mo
  74                    DATADIRNAME=lib])
  75                 INSTOBJEXT=.mo
  76               fi
  77             fi
  78         ])
  79
  80         dnl In the standard gettext, we would now check for catgets.
  81         dnl However, we never want to use catgets for our releases.
  82
  83         if test x"$CATOBJEXT" = x && test -d $srcdir/../intl; then
  84           # Neither gettext nor catgets in included in the C library.
  85           # Fall back on GNU gettext library (assuming it is present).
  86           nls_cv_use_gnu_gettext=yes
  87         fi
  88       fi
  89
  90       if test "$nls_cv_use_gnu_gettext" = "yes"; then
  91         dnl Mark actions used to generate GNU NLS library.
  92         INTLOBJS="\$(GETTOBJS)"
  93         AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
  94           [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
  95         AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
  96         AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
  97           [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
  98         AC_SUBST(MSGFMT)
  99         USE_INCLUDED_LIBINTL=yes
 100         CATOBJEXT=.gmo
 101         INSTOBJEXT=.mo
 102         DATADIRNAME=share
 103         INTLDEPS='$(top_builddir)/../intl/libintl.a'
 104         INTLLIBS=$INTLDEPS
 105         LIBS=`echo $LIBS | sed -e 's/-lintl//'`
 106         nls_cv_header_intl=libintl.h
 107         nls_cv_header_libgt=libgettext.h
 108       fi
 109
 110       dnl Test whether we really found GNU xgettext.
 111       if test "$XGETTEXT" != ":"; then
 112         dnl If it is no GNU xgettext we define it as : so that the
 113         dnl Makefiles still can work.
 114         if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
 115           : ;
 116         else
 117           AC_MSG_RESULT(
 118             [found xgettext programs is not GNU xgettext; ignore it])
 119           XGETTEXT=":"
 120         fi
 121       fi
 122
 123       # We need to process the po/ directory.
 124       POSUB=po
 125     else
 126       DATADIRNAME=share
 127       nls_cv_header_intl=libintl.h
 128       nls_cv_header_libgt=libgettext.h
 129     fi
 130
 131     # If this is used in GNU gettext we have to set USE_NLS to `yes'
 132     # because some of the sources are only built for this goal.
 133     if test "$PACKAGE" = gettext; then
 134       USE_NLS=yes
 135       USE_INCLUDED_LIBINTL=yes
 136     fi
 137
 138     dnl These rules are solely for the distribution goal.  While doing this
 139     dnl we only have to keep exactly one list of the available catalogs
 140     dnl in configure.in.
 141     for lang in $ALL_LINGUAS; do
 142       GMOFILES="$GMOFILES $lang.gmo"
 143       POFILES="$POFILES $lang.po"
 144     done
 145
 146     dnl Make all variables we use known to autoconf.
 147     AC_SUBST(USE_INCLUDED_LIBINTL)
 148     AC_SUBST(CATALOGS)
 149     AC_SUBST(CATOBJEXT)
 150     AC_SUBST(DATADIRNAME)
 151     AC_SUBST(GMOFILES)
 152     AC_SUBST(INSTOBJEXT)
 153     AC_SUBST(INTLDEPS)
 154     AC_SUBST(INTLLIBS)
 155     AC_SUBST(INTLOBJS)
 156     AC_SUBST(POFILES)
 157     AC_SUBST(POSUB)
 158     if test "x$CATOBJEXT" != "x"; then
 159       AC_DEFINE(ENABLE_NLS, 1, [Define to 1 if NLS is requested])
 160     fi
 161   ])
 162
 163 AC_DEFUN([CY_GNU_GETTEXT],
 164   [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 165    AC_REQUIRE([AC_PROG_CC])dnl
 166    AC_REQUIRE([AC_PROG_RANLIB])dnl
 167    AC_REQUIRE([AC_ISC_POSIX])dnl
 168    AC_REQUIRE([AC_HEADER_STDC])dnl
 169    AC_REQUIRE([AC_C_CONST])dnl
 170    AC_REQUIRE([AC_C_INLINE])dnl
 171    AC_REQUIRE([AC_TYPE_OFF_T])dnl
 172    AC_REQUIRE([AC_TYPE_SIZE_T])dnl
 173    AC_REQUIRE([AC_FUNC_ALLOCA])dnl
 174    AC_REQUIRE([AC_FUNC_MMAP])dnl
 175
 176    AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
 177 unistd.h values.h sys/param.h])
 178    AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
 179 __argz_count __argz_stringify __argz_next])
 180
 181    if test "${ac_cv_func_stpcpy+set}" != "set"; then
 182      AC_CHECK_FUNCS(stpcpy)
 183    fi
 184    if test "${ac_cv_func_stpcpy}" = "yes"; then
 185      AC_DEFINE(HAVE_STPCPY, 1, [Define if you have the stpcpy function])
 186    fi
 187
 188    AM_LC_MESSAGES
 189    CY_WITH_NLS
 190
 191    if test "x$CATOBJEXT" != "x"; then
 192      if test "x$ALL_LINGUAS" = "x"; then
 193        LINGUAS=
 194      else
 195        AC_MSG_CHECKING(for catalogs to be installed)
 196        NEW_LINGUAS=
 197        for lang in ${LINGUAS=$ALL_LINGUAS}; do
 198          case "$ALL_LINGUAS" in
 199           *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
 200          esac
 201        done
 202        LINGUAS=$NEW_LINGUAS
 203        AC_MSG_RESULT($LINGUAS)
 204      fi
 205
 206      dnl Construct list of names of catalog files to be constructed.
 207      if test -n "$LINGUAS"; then
 208        for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
 209      fi
 210    fi
 211
 212    dnl The reference to <locale.h> in the installed <libintl.h> file
 213    dnl must be resolved because we cannot expect the users of this
 214    dnl to define HAVE_LOCALE_H.
 215    if test $ac_cv_header_locale_h = yes; then
 216      INCLUDE_LOCALE_H="#include <locale.h>"
 217    else
 218      INCLUDE_LOCALE_H="\
 219 /* The system does not provide the header <locale.h>.  Take care yourself.  */"
 220    fi
 221    AC_SUBST(INCLUDE_LOCALE_H)
 222
 223    dnl Determine which catalog format we have (if any is needed)
 224    dnl For now we know about two different formats:
 225    dnl   Linux libc-5 and the normal X/Open format
 226    if test -f $srcdir/po2tbl.sed.in; then
 227       if test "$CATOBJEXT" = ".cat"; then
 228          AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)
 229
 230          dnl Transform the SED scripts while copying because some dumb SEDs
 231          dnl cannot handle comments.
 232          sed -e '/^#/d' $srcdir/$msgformat-msg.sed > po2msg.sed
 233       fi
 234       dnl po2tbl.sed is always needed.
 235       sed -e '/^#.*[^\\]$/d' -e '/^#$/d' \
 236          $srcdir/po2tbl.sed.in > po2tbl.sed
 237    fi
 238
 239    dnl In the intl/Makefile.in we have a special dependency which makes
 240    dnl only sense for gettext.  We comment this out for non-gettext
 241    dnl packages.
 242    if test "$PACKAGE" = "gettext"; then
 243      GT_NO="#NO#"
 244      GT_YES=
 245    else
 246      GT_NO=
 247      GT_YES="#YES#"
 248    fi
 249    AC_SUBST(GT_NO)
 250    AC_SUBST(GT_YES)
 251
 252    MKINSTALLDIRS="\$(srcdir)/../../mkinstalldirs"
 253    AC_SUBST(MKINSTALLDIRS)
 254
 255    dnl *** For now the libtool support in intl/Makefile is not for real.
 256    l=
 257    AC_SUBST(l)
 258
 259    dnl Generate list of files to be processed by xgettext which will
 260    dnl be included in po/Makefile.  But only do this if the po directory
 261    dnl exists in srcdir and contains POTFILES.in.
 262    if test -f $srcdir/po/POTFILES.in; then
 263       test -d po || mkdir po
 264       if test "x$srcdir" != "x."; then
 265          if test "x`echo $srcdir | sed 's@/.*@@'`" = "x"; then
 266             posrcprefix="$srcdir/"
 267          else
 268             posrcprefix="../$srcdir/"
 269          fi
 270       else
 271          posrcprefix="../"
 272       fi
 273       rm -f po/POTFILES
 274       sed -e "/^#/d" -e "/^\$/d" -e "s,.*,      $posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
 275          < $srcdir/po/POTFILES.in > po/POTFILES
 276    fi
 277   ])
 278
 279 # Search path for a program which passes the given test.
 280 # Ulrich Drepper <drepper@cygnus.com>, 1996.
 281 #
 282 # This file file be copied and used freely without restrictions.  It can
 283 # be used in projects which are not available under the GNU Public License
 284 # but which still want to provide support for the GNU gettext functionality.
 285 # Please note that the actual code is *not* freely available.
 286
 287 # serial 1
 288
 289 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
 290 dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
 291 AC_DEFUN([AM_PATH_PROG_WITH_TEST],
 292 [# Extract the first word of "$2", so it can be a program name with args.
 293 set dummy $2; ac_word=[$]2
 294 AC_MSG_CHECKING([for $ac_word])
 295 AC_CACHE_VAL(ac_cv_path_$1,
 296 [case "[$]$1" in
 297   /*)
 298   ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
 299   ;;
 300   *)
 301   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
 302   for ac_dir in ifelse([$5], , $PATH, [$5]); do
 303     test -z "$ac_dir" && ac_dir=.
 304     if test -f $ac_dir/$ac_word; then
 305       if [$3]; then
 306         ac_cv_path_$1="$ac_dir/$ac_word"
 307         break
 308       fi
 309     fi
 310   done
 311   IFS="$ac_save_ifs"
 312 dnl If no 4th arg is given, leave the cache variable unset,
 313 dnl so AC_PATH_PROGS will keep looking.
 314 ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
 315 ])dnl
 316   ;;
 317 esac])dnl
 318 $1="$ac_cv_path_$1"
 319 if test -n "[$]$1"; then
 320   AC_MSG_RESULT([$]$1)
 321 else
 322   AC_MSG_RESULT(no)
 323 fi
 324 AC_SUBST($1)dnl
 325 ])
 326
 327 # Check whether LC_MESSAGES is available in <locale.h>.
 328 # Ulrich Drepper <drepper@cygnus.com>, 1995.
 329 #
 330 # This file file be copied and used freely without restrictions.  It can
 331 # be used in projects which are not available under the GNU Public License
 332 # but which still want to provide support for the GNU gettext functionality.
 333 # Please note that the actual code is *not* freely available.
 334
 335 # serial 1
 336
 337 AC_DEFUN([AM_LC_MESSAGES],
 338   [if test $ac_cv_header_locale_h = yes; then
 339     AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
 340       [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
 341        am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
 342     if test $am_cv_val_LC_MESSAGES = yes; then
 343       AC_DEFINE(HAVE_LC_MESSAGES, 1,
 344                 [Define if your locale.h file contains LC_MESSAGES.])
 345     fi
 346   fi])