--- libabigail-1.6/tools/abisym.cc	2019-03-27 05:31:13.000000000 -0400
+++ libabigail-1.6/tools/abisym.cc	2019-07-18 07:19:28.999752604 -0400
@@ -26,6 +26,7 @@
 /// in its symbol tables and report what it sees.
 
 #include <elf.h>
+#include <libgen.h>
 #include <cstring>
 #include <iostream>
 #include <sstream>