X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=configure.ac;h=19ad34201af9e1358a572d3dd01837b8d924cd79;hb=745a10bf7cc26933ca2e5bdc487322e00f83725f;hp=05c1592679f79734028832d76eae1d036c2e72f2;hpb=4f65bee19fd9e7cf43c95ef01f963107577573cf;p=lttng-tools.git

diff --git a/configure.ac b/configure.ac
index 05c159267..19ad34201 100644
--- a/configure.ac
+++ b/configure.ac
@@ -356,6 +356,10 @@ if test ! -f "$srcdir/src/lib/lttng-ctl/filter/filter-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 "$srcdir/src/lib/lttng-ctl/filter/filter-lexer.c"; then
@@ -363,6 +367,10 @@ if test ! -f "$srcdir/src/lib/lttng-ctl/filter/filter-lexer.c"; then
 		AC_MSG_ERROR([[flex not found and is required when building from git.
 		Please install flex]])
 	fi
+	AC_PATH_PROG([FLEX],[flex])
+	AX_PROG_FLEX_VERSION([2.5.35], [],[
+		AC_MSG_ERROR([[Flex >= 2.5.35 is required when building from git]])
+	])
 fi
 
 CFLAGS="-Wall $CFLAGS -g -fno-strict-aliasing"