small_vector: require boost >= 1.61

We use the small_vector constructors introduced in Boost 1.61 (trac bug
11866, github commit b436c91). If the Boost version is too old, we fall
back to using std::vector.

diff --git a/src/util/small_vector.h b/src/util/small_vector.h
index 6293759c6215182b6b9848f915e917cb91bce381..0f54bbf6bf6dc5f65f749507b8b6bd107fbd375c 100644 (file)
--- a/src/util/small_vector.h
+++ b/src/util/small_vector.h
@@ -33,7 +33,12 @@
 
 #include <boost/version.hpp>
 
-#if BOOST_VERSION >= 105800
+/*
+ * We use the small_vector constructors introduced in Boost 1.61 (trac bug
+ * #11866, github commit b436c91). If the Boost version is too old, we fall
+ * back to using std::vector.
+ */
+#if BOOST_VERSION >= 106100
 #  define HAVE_BOOST_CONTAINER_SMALL_VECTOR
 #endif