scons: require scons 2.4 or greater

There is a bug with scons 2.3, used in Travis, where it fails to detect
some C functions.

Reviewed-by: Andres Gomez <agomez@igalia.com>

diff --git a/SConstruct b/SConstruct
index a59a8ea210e956bb67deb93272534804d88754e3..6e034fb968f5c641de0174f971e3bd1f8172189b 100644 (file)
--- a/SConstruct
+++ b/SConstruct
@@ -27,6 +27,12 @@ import SCons.Util
 
 import common
 
+#######################################################################
+# Minimal scons version
+
+EnsureSConsVersion(2, 4)
+
+
 #######################################################################
 # Configuration options