[recipes] Don't warn about unused function if gnome-autoar is not enabled

[Matthias Clasen <matthiasc src gnome org>]

commit be4226e989117edea9fa700e99f5d84f87afca59
Author: Nirbheek Chauhan <nirbheek centricular com>
Date:   Sat Feb 18 22:54:30 2017 +0530

    Don't warn about unused function if gnome-autoar is not enabled

 src/gr-recipe-exporter.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/gr-recipe-exporter.c b/src/gr-recipe-exporter.c
index c35763f..f4258cb 100644
--- a/src/gr-recipe-exporter.c
+++ b/src/gr-recipe-exporter.c
@@ -184,6 +184,9 @@ decide_dest_cb (AutoarCompressor *compressor,
 #endif
 
 static gboolean
+#ifndef ENABLE_AUTOAR
+G_GNUC_UNUSED
+#endif
 export_one_recipe (GrRecipeExporter  *exporter,
                    GrRecipe          *recipe,
                    GKeyFile          *keyfile,
@@ -283,6 +286,9 @@ export_one_recipe (GrRecipeExporter  *exporter,
 }
 
 static gboolean
+#ifndef ENABLE_AUTOAR
+G_GNUC_UNUSED
+#endif
 export_one_chef (GrRecipeExporter  *exporter,
                  GrChef            *chef,
                  GKeyFile          *keyfile,