freebsd-src/contrib/byacc/configure.in
Dag-Erling Smørgrav 8e022d3cde byacc: Update to 20230201.
Note that this enables the backtracking extension, which we had previously left disabled.

PR:		244149, 269425
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D38421
2023-02-20 23:35:32 +01:00

69 lines
1.6 KiB
Text

dnl Process this file with 'autoconf' to produce a 'configure' script
dnl $Id: configure.in,v 1.28 2023/02/02 00:14:51 tom Exp $
AC_PREREQ(2.52.20200802)
AC_REVISION($Revision: 1.28 $)
AC_INIT(main.c)
AC_CONFIG_HEADER(config.h:config_h.in)
CF_CHECK_CACHE([AC_CANONICAL_SYSTEM])
AC_ARG_PROGRAM
CF_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_INSTALL
CF_MAKE_TAGS
CF_PROG_AWK
CF_PROG_LINT
CF_WITHOUT_X
CF_XOPEN_SOURCE
AC_CHECK_DECL(exit)
AC_CHECK_HEADERS(fcntl.h)
CF_MKSTEMP
CF_GETOPT_HEADER
AC_HAVE_FUNCS(getopt vsnprintf)
AC_MSG_CHECKING(for maximum table size)
AC_ARG_WITH([max-table-size],
[AC_HELP_STRING([--with-max-table-size=N],
[set the maximum table size = N (no default)])])
if test -n "$with_max_table_size"
then
AC_MSG_RESULT($with_max_table_size)
check=`expr "$with_max_table_size" + 0`
if test "x$check" != "x$with_max_table_size"
then
AC_MSG_ERROR([invalid value for --with-max-table-size: $with_max_table_size])
fi
AC_DEFINE_UNQUOTED(MAXTABLE,$with_max_table_size,[Define to maximum table size (default: 32500)])
else
AC_MSG_RESULT(default)
fi
AC_MSG_CHECKING(if backtracking extension is wanted)
CF_ARG_DISABLE([btyacc],
[AC_HELP_STRING([--disable-btyacc],
[disable support for the btyacc backtracking extension (default: enabled)])],
[enable_btyacc=no],
[enable_btyacc=yes])
AC_MSG_RESULT($enable_btyacc)
if test "$enable_btyacc" = "no"; then
SKELETON=yaccpar
else
AC_DEFINE(YYBTYACC,1,[Define to 1 to enable backtracking extension])
SKELETON=btyaccpar
fi
AC_SUBST(SKELETON)
CF_ENABLE_WARNINGS(Wwrite-strings,yes)
CF_DISABLE_ECHO
CF_DISABLE_LEAKS
CF_WITH_MAN2HTML
AC_TYPE_MODE_T
### output makefile
AC_OUTPUT(makefile)
CF_MAKE_DOCS(yacc,1)