[librsvg: 9/11] configure.ac: Print whether gtk-doc is enabled

[Federico Mena Quintero <federico src gnome org>]

commit e02c61bdc5ea9eb2d96298b0c1d661e035a43ee1
Author: Federico Mena Quintero <federico gnome org>
Date:   Thu Feb 22 20:04:38 2018 -0600

    configure.ac: Print whether gtk-doc is enabled

 configure.ac | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/configure.ac b/configure.ac
index 99d6b8dd..71e94ffa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -366,4 +366,5 @@ librsvg-$VERSION
        Build GdkPixbuf loader:         ${enable_pixbuf_loader}
         GTK+ $GTK3_REQUIRED or later:           ${have_gtk_3}
        Build miscellaneous tools:      ${build_misc_tools}
+       Build HTML documentation:       ${enable_gtk_doc}
 "