blob: 48b83cc4a61f5bad45568fad59a008f49856e6f2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
#
# Check for Bison.
#
# This macro verifies that Bison is installed. If successful, then
# 1) YACC is set to bison -y (to emulate YACC calls)
# 2) BISON is set to bison
#
AC_DEFUN([AC_PROG_BISON],
[AC_CACHE_CHECK([],[llvm_cv_has_bison],[AC_PROG_YACC()])
if test "$YACC" != "bison -y"; then
AC_SUBST(BISON,[])
AC_MSG_WARN([bison not found, can't rebuild grammars])
else
AC_SUBST(BISON,[bison])
fi])
|
