| # serial 7 |
| |
| # Copyright (C) 2002, 2005, 2009-2020 Free Software Foundation, Inc. |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
| |
| AC_DEFUN([gl_BISON], |
| [ |
| # parse-datetime.y works with bison only. |
| : ${YACC='bison -o y.tab.c'} |
| dnl |
| dnl Declaring YACC & YFLAGS precious will not be necessary after GNULIB |
| dnl requires an Autoconf greater than 2.59c, but it will probably still be |
| dnl useful to override the description of YACC in the --help output, re |
| dnl parse-datetime.y assuming 'bison -o y.tab.c'. |
| AC_ARG_VAR([YACC], |
| [The "Yet Another C Compiler" implementation to use. Defaults to |
| 'bison -o y.tab.c'. Values other than 'bison -o y.tab.c' will most likely |
| break on most systems.])dnl |
| AC_ARG_VAR([YFLAGS], |
| [YFLAGS contains the list arguments that will be passed by default to Bison. |
| This script will default YFLAGS to the empty string to avoid a default value of |
| '-d' given by some make applications.])dnl |
| ]) |