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/src/lib/lttng-ctl/filter/filter-lexer.c"; then