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