configure: Add check for lex, yacc

[petitboot] / configure.ac

diff --git a/configure.ac b/configure.ac
index a4b5fc78693fc3046cce5b3c00e1bfa56274e6f8..f394de6369cf2c3f54c67bf91d92b0ef52546e00 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -26,7 +26,13 @@ AS_IF([test "x$CFLAGS" = "x"], [AC_SUBST([CFLAGS], [""])])
 
 AC_PROG_CC
 AC_PROG_LEX
+if test -z "$($LEX --version)"; then
+       AC_MSG_ERROR([[Please install flex/lex]])
+fi
 AC_PROG_YACC
+if test -z "$($YACC --version)"; then
+       AC_MSG_ERROR([[Please install bison/yacc]])
+fi
 AC_PROG_INSTALL
 
 AM_INIT_AUTOMAKE
@@ -59,7 +65,7 @@ AC_CHECK_LIB([udev], [udev_new],
 
 PKG_CHECK_EXISTS(libudev >= 218, [old_udev=no], [old_udev=yes])
 if test "$old_udev" = "yes" ; then
-      AC_DEFINE(UDEV_LOGGING, 1, [Support old udev logging interface])],
+      AC_DEFINE(UDEV_LOGGING, 1, [Support old udev logging interface])
 fi
 
 AC_CHECK_LIB([devmapper], [dm_task_create],