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-rw-r--r--tools/configure.ac2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/configure.ac b/tools/configure.ac
index 11a743f485..57c887d15a 100644
--- a/tools/configure.ac
+++ b/tools/configure.ac
@@ -80,6 +80,8 @@ AC_PROG_CC
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_INSTALL
+AC_PATH_PROG([BISON], [bison])
+AC_PATH_PROG([FLEX], [flex])
AX_PATH_PROG_OR_FAIL([PERL], [perl])
AS_IF([test "x$xapi" = "xy"], [
AX_PATH_PROG_OR_FAIL([CURL], [curl-config])