diff options
| -rw-r--r-- | configure.ac | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/configure.ac b/configure.ac index 15379961e7..aac1c142ca 100644 --- a/configure.ac +++ b/configure.ac @@ -169,11 +169,14 @@ fi # # AC_PROG_YACC -AC_PATH_PROG(YACCDUMMY, $YACC) -if test "x$YACCDUMMY" = x -then - AC_MSG_ERROR(I couldn't find yacc (or bison or ...); make sure it's installed and in your path) -fi +dnl Tarballs include the build products and do not require yacc. +AC_MSG_CHECKING(whether $YACC -V works) +AS_IF([$YACC -V >/dev/null 2>&1], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no) + AS_IF([test ! -f wiretap/ascend.c], + AC_MSG_ERROR([I couldn't find yacc (or bison or ...); make sure it's installed and in your path]))]) + AM_PROG_LEX AC_PATH_PROG(LEX, flex) if test "x$LEX" = x |