X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=configure.ac;h=349f8a16276215596e34bece1206d2dffdc3cb6f;hp=ab882abbfdfc0be6411656ac96eba438e84ee3dc;hb=43047f2182fbd5a66a7c796b3e4f50ca4d2e3e99;hpb=33287b163aa7d5b066be157d8c67c4f7bca2d618

diff --git a/configure.ac b/configure.ac
index ab882abb..349f8a16 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,7 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
+AC_PREREQ([2.50])
 AC_INIT([babeltrace],[1.2.4],[mathieu dot desnoyers at efficios dot com])
 
 # Following the numbering scheme proposed by libtool for the library version
@@ -33,6 +34,10 @@ if test ! -f "$srcdir/formats/ctf/metadata/ctf-parser.h"; then
                 AC_MSG_ERROR([[bison not found and is required when building from git.
                 Please install bison]])
         fi
+        AC_PATH_PROG([BISON],[bison])
+        AX_PROG_BISON_VERSION([2.4], [],[
+                AC_MSG_ERROR([[Bison >= 2.4 is required when building from git]])
+        ])
 fi
 
 if test ! -f "$srcdir/formats/ctf/metadata/ctf-lexer.c"; then