wscript: fix the target dylib name to ndn-cert

Change-Id: Id8620f41124549a81553bd787a6c3214a2f21c4e
diff --git a/wscript b/wscript
index 1412d1c..0333e48 100644
--- a/wscript
+++ b/wscript
@@ -57,7 +57,7 @@
 
 def build(bld):
     core = bld(
-        target = "objects",
+        target = "ndn-cert",
         features=['cxx', 'cxxshlib'],
         source =  bld.path.ant_glob(['src/**/*.cpp']),
         vnum = VERSION,
@@ -84,8 +84,8 @@
         )
 
     bld(features = "subst",
-        source='ndncert.pc.in',
-        target='ndncert.pc',
+        source='libndn-cert.pc.in',
+        target='libndn-cert.pc',
         install_path = '${LIBDIR}/pkgconfig',
         PREFIX       = bld.env['PREFIX'],
         INCLUDEDIR   = "%s/ndncert" % bld.env['INCLUDEDIR'],