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| -rw-r--r-- | configure.ac | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index c888e62..726d457 100644 --- a/configure.ac +++ b/configure.ac @@ -36,6 +36,8 @@ XORG_DEFAULT_OPTIONS AC_PROG_CC AC_PROG_INSTALL AC_PROG_YACC +AC_PATH_PROG([YACC_INST], $YACC) +test -z "$YACC_INST" && AC_MSG_ERROR([yacc not found - unable to compile gram.y]) AC_PROG_LEX AC_CHECK_FUNC([mkstemp], |