debian/changelog

+marco (1.20.3-1) unstable; urgency=medium
+
+  * New upstream release.
+  * debian/control:
+    + Bump Standards-Version: to 4.3.0. No changes needed.
+  * debian/libmarco-private1.symbols:
+    + Add Build-Depends-Package meta-data field.
+
+ -- Mike Gabriel <sunweaver@debian.org>  Sat, 05 Jan 2019 22:04:14 +0100
+
 marco (1.20.2-1) unstable; urgency=medium
 
   * New upstream release.

debian/libmarco-private1.symbols

 libmarco-private.so.1 libmarco-private1 #MINVER#
+* Build-Depends-Package: libmarco-dev
  meta_alpha_gradient_spec_free@Base 1.6.2
  meta_alpha_gradient_spec_new@Base 1.6.2
  meta_bug@Base 1.6.2