| Reid Spencer | 491f681 | 2004-09-07 06:56:14 +0000 | [diff] [blame^] | 1 | # |
| 2 | # Check for Bison. | ||||
| 3 | # | ||||
| 4 | # This macro verifies that Bison is installed. If successful, then | ||||
| 5 | # 1) YACC is set to bison -y (to emulate YACC calls) | ||||
| 6 | # 2) BISON is set to bison | ||||
| 7 | # | ||||
| 8 | AC_DEFUN([AC_PROG_BISON], | ||||
| 9 | [AC_CACHE_CHECK(, | ||||
| 10 | ac_cv_has_bison, | ||||
| 11 | [AC_PROG_YACC() | ||||
| 12 | ]) | ||||
| 13 | if test "$YACC" != "bison -y"; then | ||||
| 14 | AC_MSG_ERROR([bison not found but required]) | ||||
| 15 | else | ||||
| 16 | AC_SUBST(BISON,[bison],[location of bison]) | ||||
| 17 | fi | ||||
| 18 | ]) | ||||