1# bison-i18n.m4 serial 1 (bison-2.1) 2dnl Copyright (C) 2005 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7dnl From Bruno Haible. 8 9dnl Support for internationalization of bison-generated parsers. 10 11dnl BISON_I18N 12dnl should be used in configure.ac, after AM_GNU_GETTEXT. If USE_NLS is yes, it 13dnl sets BISON_LOCALEDIR to indicate where to find the bison-runtime.mo files 14dnl and defines YYENABLE_NLS if there are bison-runtime.mo files at all. 15AC_DEFUN([BISON_I18N], 16[ 17 if test -z "$USE_NLS"; then 18 echo "The BISON-I18N macro is used without being preceded by AM-GNU-GETTEXT." 1>&2 19 exit 1 20 fi 21 BISON_LOCALEDIR= 22 if test "$USE_NLS" = yes; then 23 dnl AC_PROG_YACC sets the YACC variable; other macros set the BISON variable. 24 if test -n "$YACC"; then 25 case "$YACC" in 26 *bison*) 27 if ($YACC --print-localedir) >/dev/null 2>&1; then 28 BISON_LOCALEDIR=`$YACC --print-localedir` 29 fi 30 ;; 31 esac 32 else 33 if test -n "$BISON"; then 34 if test "$BISON" != ":"; then 35 if ($BISON --print-localedir) >/dev/null 2>&1; then 36 BISON_LOCALEDIR=`$BISON --print-localedir` 37 fi 38 fi 39 fi 40 fi 41 AC_SUBST([BISON_LOCALEDIR]) 42 if test -n "$BISON_LOCALEDIR"; then 43 USER_LINGUAS="${LINGUAS-%UNSET%}" 44 if test -n "$USER_LINGUAS"; then 45 BISON_USE_NLS=yes 46 else 47 BISON_USE_NLS=no 48 fi 49 else 50 BISON_USE_NLS=no 51 fi 52 else 53 BISON_USE_NLS=no 54 fi 55 if test $BISON_USE_NLS = yes; then 56 AC_DEFINE([YYENABLE_NLS], 1, 57 [Define to 1 to internationalize bison runtime messages.]) 58 fi 59]) 60