component/libcap: Use SlapOS provided gperf

component/libcap/buildout.cfg

@@ -2,6 +2,7 @@
 
 extends =
   ../attr/buildout.cfg
+  ../gperf/buildout.cfg
 
 parts = libcap
 
@@ -19,6 +20,9 @@ make-options =
   LDFLAGS="-L${attr:location}/lib/ -Wl,-rpath=${attr:location}/lib/ -Wl,-rpath=${:location}/lib/"
   install
 
+environment =
+  PATH=${gperf:location}/bin:%(PATH)s
+
 # if lib64 exists, then create a symlink from lib to lib64
 post-install =
   cd ${:location}