vendor/byacc/20140409

1 files changed, 33 insertions, 2 deletions

diff --git a/configure.in b/configure.in
index 477c187a3852..0cd7a1996ded 100644
--- a/configure.in
+++ b/configure.in
@@ -1,7 +1,7 @@
 dnl Process this file with 'autoconf' to produce a 'configure' script
-dnl $Id: configure.in,v 1.15 2014/01/01 14:07:34 tom Exp $
+dnl $Id: configure.in,v 1.18 2014/04/06 19:11:51 tom Exp $
 AC_PREREQ(2.52.20011201)
-AC_REVISION($Revision: 1.15 $)
+AC_REVISION($Revision: 1.18 $)
 AC_INIT(main.c)
 AC_CONFIG_HEADER(config.h:config_h.in)
 
@@ -12,12 +12,43 @@ CF_PROG_CC
 AC_PROG_MAKE_SET
 AC_PROG_INSTALL
 CF_MAKE_TAGS
+CF_PROG_AWK
 CF_PROG_LINT
 
 CF_XOPEN_SOURCE
 AC_CHECK_HEADERS(fcntl.h)
 CF_MKSTEMP
 
+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)
+AC_ARG_ENABLE([btyacc],
+  [AC_HELP_STRING([--enable-btyacc],
+     [turn on support for the btyacc backtracking extension (default: no)])])
+AC_MSG_RESULT($enable_btyacc)
+if test "$enable_btyacc" = "yes"; then
+	AC_DEFINE(YYBTYACC,1,[Define to 1 to enable backtracking extension])
+	SKELETON=btyaccpar
+else
+	SKELETON=yaccpar
+fi
+AC_SUBST(SKELETON)
+
 CF_WITH_WARNINGS(Wwrite-strings)
 CF_DISABLE_ECHO
 CF_DISABLE_LEAKS