use buf-size.h only with lv2-1.2 or later

diff --git a/libs/ardour/lv2_plugin.cc b/libs/ardour/lv2_plugin.cc
index 4ef93ae375e5c439bb57a7154ae1fa4877f81a62..89a57efa66d4ead844777e2deb3f1363bc3ff63a 100644 (file)
--- a/libs/ardour/lv2_plugin.cc
+++ b/libs/ardour/lv2_plugin.cc
@@ -155,8 +155,10 @@ public:
        LilvNode* units_midiNote;
        LilvNode* patch_writable;
        LilvNode* patch_Message;
+#ifdef HAVE_LV2_1_2_0
        LilvNode* bufz_powerOf2BlockLength;
        LilvNode* bufz_fixedBlockLength;
+#endif
 
 private:
        bool _bundle_checked;
@@ -431,6 +433,7 @@ LV2Plugin::init(const void* c_plugin, framecnt_t rate)
                throw failed_constructor();
        }
 
+#ifdef HAVE_LV2_1_2_0
        LilvNodes *required_features = lilv_plugin_get_required_features (plugin);
        if (lilv_nodes_contains (required_features, _world.bufz_powerOf2BlockLength) ||
                        lilv_nodes_contains (required_features, _world.bufz_fixedBlockLength)
@@ -444,6 +447,7 @@ LV2Plugin::init(const void* c_plugin, framecnt_t rate)
                throw failed_constructor();
        }
        lilv_nodes_free(required_features);
+#endif
 
 #ifdef HAVE_LILV_0_16_0
        // Load default state
@@ -2385,15 +2389,19 @@ LV2World::LV2World()
        units_db           = lilv_new_uri(world, LV2_UNITS__db);
        patch_writable     = lilv_new_uri(world, LV2_PATCH__writable);
        patch_Message      = lilv_new_uri(world, LV2_PATCH__Message);
+#ifdef HAVE_LV2_1_2_0
        bufz_powerOf2BlockLength = lilv_new_uri(world, LV2_BUF_SIZE__powerOf2BlockLength);
        bufz_fixedBlockLength    = lilv_new_uri(world, LV2_BUF_SIZE__fixedBlockLength);
+#endif
 
 }
 
 LV2World::~LV2World()
 {
+#ifdef HAVE_LV2_1_2_0
        lilv_node_free(bufz_fixedBlockLength);
        lilv_node_free(bufz_powerOf2BlockLength);
+#endif
        lilv_node_free(patch_Message);
        lilv_node_free(patch_writable);
        lilv_node_free(units_hz);
@@ -2524,6 +2532,7 @@ LV2PluginInfo::discover()
                        continue;
                }
 
+#ifdef HAVE_LV2_1_2_0
                LilvNodes *required_features = lilv_plugin_get_required_features (p);
                if (lilv_nodes_contains (required_features, world.bufz_powerOf2BlockLength) ||
                                lilv_nodes_contains (required_features, world.bufz_fixedBlockLength)
@@ -2536,6 +2545,7 @@ LV2PluginInfo::discover()
                        continue;
                }
                lilv_nodes_free(required_features);
+#endif
 
                info->type = LV2;